DOWNLOAD PDF: New Holland TM Series TM120-TM190 REPAIR MANUAL

TM Series

REPAIR MANUAL

TM120--TM190 Section 55 -- Electrical System Chapter 10 -- Fault Codes Fault Code Charts 120 to 155 Models with Range Command Transmission Range Command Transmission (’F’ codes) Electronic Draft Control (No prefix) Suspended Front Axle (’L’ codes) Electronic Management Unit (’P’ codes) Digital Instrument Cluster (No prefix)

87021031

8/02

TM SERIES REPAIR MANUAL CONTENTS SECTION 00 -- GENERAL SECTION 10 -- ENGINE SECTION 18 -- CLUTCH SECTION 21 -- TRANSMISSION SYSTEMS SECTION 23 -- DRIVE LINES SECTION 25 -- MECHANICAL FRONT AXLE SECTION 27 -- MECHANICAL REAR WHEEL DRIVE SECTION 31 -- POWER TAKE-OFF SECTION 33 -- BRAKES SECTION 35 -- HYDRAULIC SYSTEMS SECTION 41 -- STEERING SECTION 44 -- FRONT AXLE AND WHEELS SECTION 50 -- AUXILIARY UNITS

SECTION 55 -- ELECTRICAL SYSTEM SECTION 90 -- CAB The sections used through out all New Holland product Repair manuals may not be used for each product. Each Repair manual will be made up of one or several books. Each book will be labeled as to which sections are in the overall Repair manual and which sections are in each book.

The sections listed above are the sections utilized for the TM Series Tractors.

414 -- 8/02

ã 2002 NEW HOLLAND NORTH AMERICA, INC.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 RANGE COMMAND TRANSMISSION FAULT CODE LISTING

FAULT DESCRIPTION

FAULT CODE

1379

TRANS. STATUS

F02

High/low synchroniser not calibrated or a bad calibration

Enabled

F03

Medium/reverse synchroniser not calibrated or a bad calibration

Enabled

F11

Clutch potentiometer voltage below valid range

Disabled Enabled

F12

Clutch potentiometer voltage above valid range

Disabled Enabled

F13

Upshift and downshift switches both closed

Enabled

F20

Range shift synchroniser did not engage

Enabled

F21

Transmission extension harness to main harness disconnected

Disabled

F22

Range shift synchroniser did not disengage

Enabled

F23

Creeper engaged (speed or gear too high)

Enabled

F24

All clutches and synchronisers require calibration

Disabled

F27

ERPM signal not present

Enabled

F31

Range shift synchroniser did not engage during shuttle shift

Disabled

F32

High range synchroniser did not engage during start up sequence within specified time( this is part of a system test during start up)

Disabled

F33

Synchroniser did not disengage

Disabled

F34

Synchroniser did not disengage after start up power up (part of start up sequence)

Disabled

F35

Synchroniser did not engage previous range after error code F20 or F22

Disabled

F36

Synchroniser disengaged without driver initiation

Disabled

F37

Clutch disconnect switch open circuit

Disabled

F38

Disabled range selected by the operator

Enabled Disabled Disabled

F40

Medium/reverse range potentiometer over voltage

Enabled

F41

Medium/reverse range potentiometer under voltage

Enabled

F42

Low/high range potentiometer over voltage

Enabled

F43

Low/high range potentiometer under voltage

Enabled

F44

Medium/reverse range synchroniser potentiometer out of calibrated range

Enabled

F45

Low/high range synchroniser potentiometer out of calibrated range

Enabled

F47

Clutch disconnect switch misadjusted high

Enabled

F48

Clutch disconnect switch short circuit

Enabled

F49

Transmission output speed sensor open circuit

Enabled

F50

Transmission output speed sensor short to ground

Enabled

F51

Temperature sender open circuit

Enabled

1380

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 FAULT DESCRIPTION

FAULT CODE

TRANS. STATUS

F52

Temperature sensor short to ground

Enabled

F53

+5 Volt reference voltage too high

Disabled

F54

+5 Volts reference voltage too low

Disabled

F55

+8 Volt reference voltage too high

Disabled

F56

+8 Volts reference voltage too low

Disabled

F59

Forward/neutral/reverse switch disagreement (more than one switch is engaged)

Disabled

F60

Upshift switch input voltage low

Enabled

F61

Upshift switch input voltage high

Enabled

F62

Downshift switch input voltage low

Enabled

F63

Downshift switch input voltage high

Enabled

F64

Rangeshift switch input voltage low

Enabled

F65

Rangeshift switch input voltage high

Enabled

F66

Shuttle lever forward switch input voltage low

Enabled

F67

Shuttle lever forward switch input voltage high

Enabled

F68

Shuttle lever reverse switch input voltage low

Enabled

F69

Shuttle lever reverse switch input voltage high

Enabled

F73

Transmission mid speed sensor open circuit

Enabled

F74

Transmission mid speed sensor short to ground

Enabled

F75

Swapped mid and output speed sensors

Enabled

F77

No signal from the output speed sensor

Enabled

F78

No signal from the transmission mid speed sensor

Enabled

F79

Engine RPM exceeds 3000 RPM

Enabled

F80

Transmission output RPM too high for the selected gear

Enabled

F81

Clutch slipping

Disabled

F1A

Clutch A solenoid open circuit or short to ground

Disabled

F1B

Clutch B solenoid open circuit or short to ground

Disabled

F1C

Clutch C solenoid open circuit or short to ground

Disabled

F1D

Clutch D solenoid open circuit or short to ground

Disabled

F1E

Clutch E solenoid open circuit or short to ground

Disabled

F1H

High range solenoid open circuit or short to ground

Disabled

F1L

Low range solenoid open circuit or short to ground

Disabled

F1P

Reverse range solenoid open circuit or short to ground

Disabled

F1U

Medium range solenoid open circuit or short to ground

Disabled

F2A

Clutch A solenoid over voltage

Disabled

F2B

Clutch B solenoid over voltage

Disabled

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 FAULT DESCRIPTION

FAULT CODE

1381 TRANS. STATUS

F2C

Clutch C solenoid over voltage

Disabled

F2D

Clutch D solenoid over voltage

Disabled

F2E

Clutch E solenoid over voltage

Disabled

CP

Depress the clutch pedal to to re--enable the transmission

Disabled

FCA

Clutch A not calibrated

Enabled

FCB

Clutch B not calibrated

Enabled

FCC

Clutch C not calibrated

Enabled

FCD

Clutch D not calibrated

Enabled

FCE

Clutch E not calibrated

Enabled

CALIBRATION FAULTS U19

Oil temperature below 10 degrees centigrade

U21

Engine RPM too low

U22

Engine RPM too high

U23

Shuttle lever in neutral

U26

Clutch pedal not released

U31

Output speed sensed -- tractor moving

U33

Handbrake not applied

U34

Seat switch not activated

U36

Maximum allowed clutch calibration value exceeded

U37

ERPM dropped too soon during clutch calibration

U81

No medium/reverse range synchroniser movement sensed

U82

No low/high range synchroniser movement sensed

U83

Synchroniser potentiometer connectors swapped

U84

Reverse and high range synchroniser solenoid connectors swapped

U85

Medium and low range synchroniser solenoid connectors swapped

U86

Medium/reverse range synchroniser neutral error

U87

Low/high range synchroniser neutral error

U88

Medium/reverse range synchroniser calibration values out of tolerance

U89

Low/high range synchroniser calibration values out of tolerance CALIBRATION MESSAGES

CF

Calibration procedure completed successfully

CH

Oil temperature above 105 degrees centigrade -- Press upshift to proceed

CL

Oil temperature between 10 and 60 degrees centigrade -- press upshift to proceed

1382

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F02 -- HIGH/LOW SYNCHRONISER NOT CALIBRATED OR A BAD CALIBRATION Effects: Cannot obtain low or high range and medium range (if applicable) selected automatically.

Possible failure modes: 1. Synchroniser not calibrated 2. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Perform the transmission calibration procedure.

A. If the error code is still displayed, continue to step 2.

2. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1383

ERROR CODE F03 -- MEDIUM/REVERSE SYNCHRONISER NOT CALIBRATED OR A BAD CALIBRATION Effects: Cannot obtain medium or reverse range and low range (if obtainable).

Possible failure modes: 1. Synchroniser not calibrated 2. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Perform the transmission calibration procedure.

A. If the error code is still displayed, continue to step 2.

2. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

1384

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F11 -- CLUTCH POTENTIOMETER VOLTAGE BELOW VALID RANGE Effects: If the error code occurs while driving it will disable the transmission. Cycling the shuttle lever will re--enable the transmission. The tractor may be used on the shuttle lever. If the clutch pedal is depressed the transmission will be disabled again until the shuttle lever has been cycled.

Possible failure modes: 1. Faulty connector 2. Faulty clutch pedal potentiometer 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch pedal potentiometer in H9 Channel 0.

A. Operate the clutch pedal. If the values displayed do not change continuously between 91 to 26, continue to step 2.

B. If the values displayed are okay, while in H9 Channel 0 wiggle the harness and the connectors to check for an intermittent circuit. Channel 0 values will change if an intermittent circuit is detected, repair or replace as required.

2. Check the clutch pedal potentiometer connector C077 and the transmission control module (TCM) connectors C100 and C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. repair or replace as required.

B. If the connectors are okay, continue to step 3.

3. Check the clutch pedal potentiometer.

A. Disconnect connector C077. While operating the clutch pedal, measure the resistance between the component side of connector: C077 pin 2 (Y/R/B) and C077 pin 3 (B) should indicate between 0.90K Ohms and 3.7K Ohms C077 pin 2 (Y/R/B) and C077 pin 1 (G/B/S) should indicate between 3.7K Ohms and 0.90K Ohms If the resistances indicated are not okay, remove and replace the clutch pedal potentiometer.

B. If the clutch pedal potentiometer is okay, continue to step 4.

4. Check for an open circuit.

A. Disconnect connectors C100 and C101. Check between connector: C077 pin 1 (G/B/S) and C101 pin 5 (G/B/S) C077 pin 2 (Y/R/B) and C100 pin 19 (Y/R/B) C077 pin 3 (B) and C101 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required B. If an open circuit is not indicated, continue to step 5.

5. Check for short to ground.

A. Check between connector: C077 pin 1 (G/B/S) and ground C077 pin 2 (Y/R/B) and ground If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1385

1386

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1387

ERROR CODE F12 -- CLUTCH POTENTIOMETER VOLTAGE ABOVE VALID RANGE Possible failure modes: 1. Faulty clutch pedal potentiometer 2. Faulty harness 3. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch pedal potentiometer in H9 Channel 0.

A. Operate the clutch pedal. If the values displayed do not change continuously between 91 to 26, continue to step 2.

B. If the values displayed are okay, while in H9 Channel 0 wiggle the harness and the connectors to check for an intermittent circuit. Channel 0 values will change if an intermittent circuit is detected, repair or replace as required.

2. Check the clutch potentiometer.

A. Disconnect the clutch pedal potentiometer connector C077. While operating the clutch pedal, measure the resistance between the component side of connector: C077 pin 2 (Y/R/B) and C077 pin 3 (B) should indicate between 0.90K Ohms and 3.7K Ohms C077 pin 2 (Y/R/B) and C077 pin 1 (G/B/S) should indicate between 3.7K Ohms and 0.90K Ohms If the resistances indicated are not okay, remove and replace the clutch pedal potentiometer.

B. If the clutch pedal potentiometer is okay, continue to step 3.

3. Check for an open circuit.

A. Check between connector C077 pin 3 (B) and ground. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short to +8 or +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C077 pin 1 (G/B/S) and ground. If the voltage indicated is greater than +5 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +5 Volts, continue to step 5.

5. Check for a short to +Ve voltage A. Turn the keystart ON. Measure the voltage between connector C077 pin 2 (Y/R/B) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

1388

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1389

1390

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F13 -- UPSHIFT AND DOWNSHIFT SWITCHES BOTH CLOSED Effects: Tractor will continue to drive but attempts to shift will not be recognised.

Possible failure modes: 1. Both the upshift and downshift switches depressed at the same time.

2. Faulty upshift or downshift switch 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Have both the upshift and downshift switches been depressed at the same time.

A. Clear the error code and test the system for normal operation. If the error code re--occurs, continue to step 2.

2. Check the upshift switch in H5.

A. Turn the keystart ON. Depress the upshift switch, and check the display. If the display does change from d0 to d25 when depressed, while still in H5 wiggle the harness and the connectors to check for an intermittent circuit. The display will change if an intermittent circuit is detected, repair or replace as required. If an intermittent circuit is not indicated, continue to step 3.

B. If the display does not change from d25 when the switch is released, continue to step 4.

3. Check the downshift switch in H5.

A. Turn the keystart ON. Depress the downshift switch, and check the display. If the display does change from d0 to d24 when depressed, while still in H5 wiggle the harness and the connectors to check for an intermittent circuit. The display will change if an intermittent circuit is detected, repair or replace as required.

If an intermittent circuit is not indicated, continue to step 3.

B. If the display does not change from d24 when the switch is released, continue to step 4.

4. Check for a short circuit or short to +Ve voltage.

A. Turn the keystart OFF. Disconnect the gear selector switch connector C103. Check between connector: C103 pin 3 (S/LG/B) and C103 pin 4 (S/K/B) C103 pin 3 (S/LG/B) and ground C103 pin 4 (S/K/B) and ground If a short circuit or short to +Ve voltage is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the gear selector switch.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1391

1392

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1393

ERROR CODE F20 -- RANGE SHIFT SYNCHRONISER DID NOT ENGAGE Effects: Transmission attempts to change and returns to the previously engaged range.

Possible failure modes: 1. Tractor speed excessive when attempting to change range 2. Faulty hydraulic circuit 3. Faulty potentiometer or its linkage 4. Faulty solenoid 5. Mechanical fault Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check if the tractor speed was excessive during the range shift.

A. Clear the error code and test the system for normal operation. If the error code re--occurs, continue to step 2.

2. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 3.

3. Check the synchroniser movement in HL. A. If the display changes between approximately 50%, 25% and 75% when the synchroniser is operated, perform the transmission calibration procedure. If the error code is still displayed, continue to step 4.

B. If no movement is detected in one of the ranges, continue to step 4.

4. Check the hydraulic pressure of the synchroniser actuating circuit.

A. If the pressures indicated are between 15 -- 18 bar, possible potentiometer and its linkage is faulty or a mechanical fault within the transmission. If the pressures are low on all of the synchroniser actuating circuits, continue to hydraulic troubleshooting procedures.

B. If the pressures are low on only one of the synchroniser actuating circuits, continue to step 5.

5. Check the identified faulty synchroniser solenoid.

A. Disconnect the connector for the faulty synchroniser solenoid. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 8 Ohms -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the resistance indicated is okay, check if the solenoid valve is sticking. If the solenoid is okay, possible internal leakage within the transmission.

1394

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F21 -- TRANSMISSION EXTENSION HARNESS TO MAIN HARNESS DISCONNECTED Effects: Transmission disabled.

Possible failure modes: 1. Faulty connector 2. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the harness connectors C019, C020 and C123.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 2.

2. Check the the solenoid connectors C024, C025, C026, C027, C028, C031, C032, C039 and C040.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. repair or replace as required.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1395

1396

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F22 -- RANGE SHIFT SYNCHRONISER DID NOT DISENGAGE Effects: Transmission attempts change and returns to the previously engaged range.

Possible failure modes: 1. Faulty hydraulic circuit 2. Faulty potentiometer or its linkage 3. Faulty solenoid 4. Mechanical fault Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the synchroniser movement in HL. A. If the display changes between approximately 50%, 25% and 75% when the synchroniser is operated, perform the transmission calibration procedure. If the error code is still displayed, continue to step 4.

B. If no movement is detected in one of the ranges, continue to step 4.

3. Check the hydraulic pressure of the synchroniser actuating circuit.

A. If the pressures indicated are between 15 -- 18 bar, possible potentiometer and its linkage is faulty or a mechanical fault within the transmission. If the pressures are low on all of the synchroniser actuating circuits, continue to hydraulic troubleshooting procedures.

B. If the pressures are low on only one of the synchroniser actuating circuits, continue to step 5.

4. Check the identified faulty synchroniser solenoid.

A. Disconnect the connector for the faulty synchroniser solenoid. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 8 Ohms -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the resistance indicated is okay, check if the solenoid valve is sticking. If the solenoid is okay, possible internal leakage within the transmission.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1397

ERROR CODE F23 – CREEPER ENGAGED (SPEED OR GEAR TO HIGH) Effects: Upshifts are inhibited.

Possible failure modes: 1. Operator error 2. Faulty creeper switch 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check downshifting to C1 or lower.

A. Downshift to C1 (or lower) or stop and disengage the creeper (shifting to neutral or depressing the clutch will also cause the transmission to downshift). If error code F23 is still displayed, continue to step 2.

B. If error code F23 is not displayed, the tractor is okay.

2. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 3.

3. Check the creeper switch in H5.

A. Turn the keystart ON. Operate the creeper switch and check the display. If the display does not change to d31, continue to step 4.

B. If the display does change to d31, while still in H5 wiggle the harness and the connectors to check for an intermittent circuit. The display will change if an intermittent circuit is detected, repair or replace as required.

If an intermittent circuit is not detected, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

4. Check the creeper switch and the adjustment.

A. If the creeper switch is adjusted correctly, disconnect the creeper switch connector C021. While depressing the switch, check between the creeper switch terminals. If an open circuit is indicated remove and replace the creeper switch.

B. If the creeper switch is okay, continue to step 5.

5. Check for +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C021 pin 2 (R/LG/B) and ground. If the voltage indicated is less than approximately +12 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +12 Volts, continue to step 6.

6. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the transmission control module (TCM) connector C100. Check between connector C100 pin 2 (S/TN/B) and C021 pin 1 (W/O/B). If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

1398

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1399

1400

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F24 -- ALL CLUTCHES AND SYNCHRONISERS REQUIRE CALIBRATION Effects: Transmission disabled.

Possible failure modes: 1. Transmission not calibrated 2. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check if the transmission was calibrated.

A. If the transmission was not calibrated after a change of the transmission control module (TCM) or after using H8, clear the non--volatile memory (EEPROM). Perform the transmission calibration procedures.

B. If the transmission was calibrated, perform the transmission calibration procedures. If the error code re--occurs, download the correct level of software and re--perform the calibration procedures. If the fault re--occurs again, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1401

ERROR CODE F27 -- ENGINE RPM SIGNAL NOT PRESENT Effects: No speed matching. Delay in upshifts after auto take off. Minor reduction in shift performance (2300 rev/min assumed by the processor).

Possible failure modes: 1. Loose or broken alternator drive belt 2. Faulty alternator 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the alternator drive belt is not loose or broken.

A. If the belt is loose or broken, tighten or replace as required.

B. If the belt is okay, continue to step 2.

2. Check the alternator output.

WARNING: Beware of moving parts.

A. Start the engine. Measure the voltage between the alternator speed terminal connector W (WS) and ground. If the voltage indicated is not approximately +7 Volts, remove the alternator and repair or replace as required.

B. If the alternator is okay, continue to step 3.

3. Check for an open circuit.

A. Stop the engine. Turn the keystart ON. Disconnect the alternator speed terminal connector W and the transmission control module (TCM) connector C100. Check between connector C100 pin 15 and the alternator speed terminal connector W. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short to ground.

A. Check between connector C100 pin 15 (WS) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

1402

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1403

1404

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F31 -- RANGE SHIFT SYNCHRONISER DID NOT ENGAGE DURING SHUTTLE SHIFT Effects: Transmission disabled.

Possible failure modes: 1. Faulty hydraulic circuit 2. Faulty potentiometer or its linkage 3. Faulty solenoid 4. Mechanical fault Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the synchroniser movement in HL. A. If the display changes between approximately 50%, 25% and 75% when the synchroniser is operated, perform the transmission calibration procedure. If the error code is still displayed, continue to step 3.

B. If no movement is detected in one of the ranges, continue to step 3.

3. Check the hydraulic pressure of the synchroniser actuating circuit.

A. If the pressures indicated are between 15 -- 18 bar, possible potentiometer and its linkage is faulty or a mechanical fault within the transmission. If the pressures are low on all of the synchroniser actuating circuits, continue to hydraulic troubleshooting procedures.

B. If the pressures are low on only one of the synchroniser actuating circuits, continue to step 4.

4. Check the identified faulty synchroniser solenoid.

A. Disconnect the connector for the faulty synchroniser solenoid. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 8 Ohms -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the resistance indicated is okay, check if the solenoid valve is sticking. If the solenoid is okay, possible internal leakage within the transmission.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1405

ERROR CODE F32 -- HIGH RANGE SYNCHRONISER DID NOT ENGAGE DURING START UP SEQUENCE, WITHIN SPECIFIED TIME (THIS IS PART OF A SYSTEM TEST DURING START UP) Effects: Transmission disabled.

Possible failure modes: 1. Faulty hydraulic circuit 2. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check if the low oil pressure light is on.

A. If the low oil pressure light is on, continue to hydraulic troubleshooting procedures.

B. If the low oil pressure light is not on, continue to step 2.

2. Cycle the shuttle lever to try and engage the synchroniser.

A. If the fault re--occurs, continue to step 3.

3. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

1406

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F33 -- SYNCHRONISER DID NOT DISENGAGE Effects: Transmission disabled.

Possible failure modes: 1. Faulty hydraulic circuit 2. Faulty potentiometer or its linkage 3. Faulty solenoid 4. Mechanical fault Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the synchroniser movement in HL. A. If the display changes between approximately 50%, 25% and 75% when the synchroniser is operated, perform the transmission calibration procedure. If the error code is still displayed, continue to step 3.

B. If no movement is detected in one of the ranges, continue to step 3.

3. Check the hydraulic pressure of the synchroniser actuating circuit.

A. If the pressures indicated are between 15 -- 18 bar, possible potentiometer and its linkage is faulty or a mechanical fault within the transmission. If the pressures are low on all of the synchroniser actuating circuits, continue to hydraulic troubleshooting procedures.

B. If the pressures are low on only one of the synchroniser actuating circuits, continue to step 4.

4. Check the identified faulty synchroniser solenoid.

A. Disconnect the connector for the faulty synchroniser solenoid. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 8 Ohms -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the resistance indicated is okay, check if the solenoid valve is sticking. If the solenoid is okay, possible internal leakage within the transmission.

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ERROR CODE F34 -- SYNCHRONISER DID NOT DISENGAGE AFTER START UP POWER UP (PART OF START UP SEQUENCE) Effects: Transmission disabled.

Possible failure modes: 1. Faulty hydraulic circuit 2. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check if the low oil pressure light is on.

A. If the low oil pressure light is on, continue to hydraulic troubleshooting procedures.

B. If the low oil pressure light is not on, continue to step 2.

2. Cycle the shuttle lever to try and disengage the synchroniser.

A. If the fault re--occurs, continue to step 3.

3. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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ERROR CODE F35 -- SYNCHRONISER DID NOT ENGAGE PREVIOUS RANGE AFTER ERROR CODE F20 OR F22 Effects: Transmission disabled.

Possible failure modes: 1. Tractor speed excessive when attempting to change range.

2. Faulty hydraulic circuit 3. Faulty potentiometer or its linkage 4. Faulty solenoid 5. Mechanical fault Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Cycle the shuttle lever to try and engage the synchroniser.

A. If the fault re--occurs, continue to step 2.

2. Check if the tractor speed was excessive during the range shift.

A. Clear the error code and test the system for normal operation. If the error code re--occurs, continue to step 3.

3. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 4.

4. Check the synchroniser movement in HL. A. If the display changes between approximately 50%, 25% and 75%, when the synchroniser is operated.

Perform the transmission calibration procedure. If the error code is still displayed, continue to step 5.

B. If no movement is detected in one of the ranges, continue to step 5.

5. Check the hydraulic pressure of the synchroniser actuating circuit.

A. If the pressures indicated are between 15 -- 18 bar, possible potentiometer and its linkage is faulty or a mechanical fault within the transmission. If the pressures are low on all of the synchroniser actuating circuits, continue to hydraulic troubleshooting procedures.

B. If the pressures are low on only one of the synchroniser actuating circuits, continue to step 6.

6. Check the identified faulty synchroniser solenoid.

A. Disconnect the connector for the faulty synchroniser solenoid. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 8 Ohms -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the resistance indicated is okay, check if the solenoid valve is sticking. If the solenoid is okay, possible internal leakage within the transmission.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F36 -- SYNCHRONISER DISENGAGED WITHOUT DRIVER INITIATION Effects: Transmission disabled.

Possible failure modes: 1. Synchroniser partial engagement 2. Faulty synchroniser potentiometer 3. Mechanical fault Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Cycle the shuttle lever.

A. If the fault re--occurs, identify the faulty range. If high/low range is faulty, continue to step 2. If medium/reverse range is faulty, continue step 3 B. If the error code is cleared, continue to step 4.

2. Check the high/low range synchroniser potentiometer.

A. Remove the potentiometer. While turning the potentiometer, measure the resistance between the component side of connector: C029 pin 2 (P/K/B) and C029 pin 3 (B) should indicate between 4.0K Ohms -- 1.0K Ohms C029 pin 2 (P/K/B) and C029 pin 1 (G/N/S) should indicate between 1.0K Ohms -- 4.0K Ohms If the resistances indicated are not okay, replace the synchroniser potentiometer.

B. If the potentiometer is okay, inspect the potentiometer linkage and repair or replace as required.

3. Check the medium/reverse range synchroniser potentiometer.

A. Remove the potentiometer. While turning the potentiometer, measure the resistance between the component side of connector: C030 pin 2 (P/TQ/B) and C030 pin 3 (B) should indicate between 4.0K Ohms -- 1.0K Ohms C030 pin 2 (P/TQ/B) and C030 pin 1 (G/N/S) should indicate between 1.0K Ohms -- 4.0K Ohms If the resistances indicated are not okay, replace the synchroniser potentiometer.

B. If the potentiometer is okay, inspect the potentiometer linkage and repair or replace as required 4. Check the operation of all ranges.

A. If the error code is cleared, synchroniser possibly jumped out due to only partial engagement. Perform the transmission calibration procedure.

B. If the fault re--occurs, possible transmission mechanical fault.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F37 -- CLUTCH DISCONNECT SWITCH OPEN CIRCUIT Possible failure modes: 1. Faulty connector 2. Incorrect clutch pedal potentiometer calibration 3. Incorrect clutch disconnect switch adjustment 4. Faulty clutch disconnect switch 5. Faulty harness 6. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch pedal potentiometer in HA. A. Operate the clutch pedal. If the values displayed do not change continuously between 0 to 99, perform the clutch potentiometer calibration procedure.

B. If the values displayed are okay, continue to step 2.

2. Check the clutch disconnect switch adjustment.

A. Depress the clutch pedal. While still in HA, check that an audible click is heard from the disconnect switch when the pedal is being raised between 8 -- 14% (indicated on the DOG). Adjust the disconnect switch as required.

B. If the disconnect switch is adjusted correctly, continue to step 3.

3. Check the clutch disconnect switch connector C076 and the transmission control module (TCM) connectors C100 and C101.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 4.

4. Check the clutch disconnect switch.

A. Disconnect connector C076. Check between the component side of connector: C076 pin 2 (Y/P/B) and C076 pin 3 (R/G/B) should indicate a closed circuit with the pedal released and an open circuit with the pedal depressed.

C076 pin 1 (W/Y) and C076 pin 4 (Y/P/B) should indicate an open circuit with the pedal released and a closed circuit with the pedal depressed.

If the switch is not okay, remove and replace the clutch disconnect switch.

B. If the switch is okay, continue to step 5.

5. Check for +12 Volts.

A. Turn the keystart ON. Measure the voltage between C076 pin 1 (W/Y) and ground. If +12 Volts is not indicated, repair or replace the harness as required.

B. If +12 volts is indicated, continue to step 6.

6. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connectors C100 and C101. Check between connector: C076 pin 2 (Y/P/B) and C100 pin 27 (Y/P/B) C076 pin 3 (R/G/B) and C101 pin 30 (R/G/B) C076 pin 4 (Y/P/B) and C100 pin 27 (Y/P/B) C076 pin 2 (Y/P/B) and ground with the shuttle lever in neutral If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F38 -- DISABLED RANGE SELECTED BY THE OPERATOR Effects: Synchroniser range shift to medium not completed.

Synchroniser range shift to high not completed.

Synchroniser range shift to reverse not completed.

Synchroniser range shift to reverse cannot be selected from gear C1 or higher.

Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

NOTE: This error code will be displayed in conjunction with other error codes. Usually informing of a solenoid, potentiometer or speed sensor failure.

Check for other error codes. If any other error codes are displayed, continue to these tests.

If reverse has been attempted in a gear higher than C1 when there was an output speed sensor fault (F49, F50 or F77) reverse will not be selected and this error code is raised.

The transmission will be disabled but can be recovered to forward drive by cycling the shuttle lever or clutch pedal and waiting for 10 seconds. The secondary controller (CFPS) then assumes that the tractor has slowed sufficient to make the shift.

Rectifying the wheel speed sender fault will eliminate the reoccurrence of F38.

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ERROR CODE F40 -- MEDIUM/REVERSE RANGE SYNCHRONISER POTENTIOMETER OVER VOLTAGE Effects: Medium/reverse range cannot be obtained.

Possible failure modes: 1. Faulty medium/reverse range synchroniser potentiometer 2. Faulty harness 3. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the medium/reverse range synchroniser potentiometer.

A. Disconnect the medium/reverse range synchroniser potentiometer connector C030 and remove the potentiometer. While operating the potentiometer, measure the resistance between the component side of connector: C030 pin 2 (P/TQ/B) and C030 pin 3 (B) should indicate between 0.90K Ohms and 3.7K Ohms C030 pin 2 (P/TQ/B) and C030 pin 1 (G/N/S) should indicate between 3.7K Ohms and 0.90K Ohms If the resistances indicated are not okay, replace the potentiometer.

B. If the potentiometer is okay, continue to step 2.

2. Check for an open circuit.

A. Check between connector C030 pin 3 (B) and ground. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 3.

3. Check for a short to +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C030 pin 1 (G/N/S) and ground. If the voltage indicated is greater than +8 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +8 Volts, continue to step 4.

4. Check for a short to +Ve voltage A. Turn the keystart ON. Measure the voltage between connector C030 pin 2 (P/TQ/B) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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ERROR CODE F41 -- MEDIUM/REVERSE RANGE SYNCHRONISER POTENTIOMETER UNDER VOLTAGE Effects: Medium/reverse range cannot be obtained.

Possible failure modes: 1. Faulty connector 2. Faulty medium/reverse range synchroniser potentiometer 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the medium/reverse range synchroniser potentiometer connector C030 and the transmission control module (TCM) connectors C100 and C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. repair or replace as required.

B. If the connectors are okay, continue to step 2.

2. Check the medium/reverse range synchroniser potentiometer.

A. Disconnect connector C030 and remove the potentiometer. While operating the potentiometer, measure the resistance between the component side of connector: C030 pin 2 (P/TQ/B) and C030 pin 3 (B) should indicate between 0.90K Ohms and 3.7K Ohms C030 pin 2 (P/TQ/B) and C030 pin 1 (G/N/S) should indicate between 3.7K Ohms and 0.90K Ohms If the resistances indicated are not okay, replace the potentiometer.

B. If the potentiometer is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connectors C100 and C101. Check between connector: C030 pin 1 (G/N/S) and C101 pin 25 (G/N/S) C030 pin 2 (P/TQ/B) and C100 pin 33 (P/TQ/B) C030 pin 3 (B) and C101 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required B. If an open circuit is not indicated, continue to step 4.

4. Check for a short to ground.

A. Check between connector: C030 pin 1 (G/N/S) and ground C030 pin 2 (P/TQ/B) and ground If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F42 -- LOW/HIGH RANGE SYNCHRONISER POTENTIOMETER OVER VOLTAGE Effects: Low/high range cannot be obtained.

Possible failure modes: 1. Faulty low/high range synchroniser potentiometer 2. Faulty harness 3. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the low/high range synchroniser potentiometer.

A. Disconnect the low/high range synchroniser potentiometer connector C029 and remove the potentiometer. While operating the potentiometer, measure the resistance between the component side of connector: C029 pin 2 (P/K/B) and C029 pin 3 (B) should indicate between 0.90K Ohms and 3.7K Ohms C029 pin 2 (P/K/B) and C029 pin 1 (G/N/S) should indicate between 3.7K Ohms and 0.90K Ohms If the resistances indicated are not okay, replace the potentiometer.

B. If the potentiometer is okay, continue to step 2.

2. Check for an open circuit.

A. Check between connector C029 pin 3 (B) and ground. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 3.

3. Check for short to +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C029 pin 1 (G/N/S) and ground. If the voltage indicated is greater than +8 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +8 Volts, continue to step 4.

4. Check for a short to +Ve voltage A. Turn the keystart ON. Measure the voltage between connector C029 pin 2 (P/K/B) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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ERROR CODE F43 -- LOW/HIGH RANGE SYNCHRONISER POTENTIOMETER UNDER VOLTAGE Effects: Low/high range cannot be obtained.

Possible failure modes: 1. Faulty connector 2. Faulty low/high range synchroniser potentiometer 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the low/high range synchroniser potentiometer connector C029 and the transmission control module (TCM) connectors C100 and C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. repair or replace as required.

B. If the connectors are okay, continue to step 2.

2. Check the low/high range synchroniser potentiometer.

A. Disconnect connector C029 and remove the potentiometer. While operating the potentiometer, measure the resistance between the component side of connector: C029 pin 2 (P/K/B) and C029 pin 3 (B) should indicate between 0.90K Ohms and 3.7K Ohms C029 pin 2 (P/K/B) and C029 pin 1 (G/N/S) should indicate between 3.7K Ohms and 0.90K Ohms If the resistances indicated are not okay, replace the potentiometer.

B. If the potentiometer is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connectors C100 and C101. Check between connector: C029 pin 1 (G/N/S) and C101 pin 25 (G/N/S) C029 pin 2 (P/K/B) and C100 pin 11 (P/K/B) C029 pin 3 (B) and C101 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required B. If an open circuit is not indicated, continue to step 4.

4. Check for short to ground.

A. Check between connector: C029 pin 1 (G/N/S) and ground C029 pin 2 (P/K/B) and ground If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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ERROR CODE F44 -- MEDIUM/REVERSE RANGE SYNCHRONISER POTENTIOMETER OUT OF CALIBRATED RANGE Effects: Transmission functions normally, but may lead to premature detection of synchroniser engagement and subsequent synchroniser damage.

Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

NOTE: This error code may be indicating wear on transmission components or a faulty potentiometer.

1. Perform the transmission calibration procedures to clear the error code.

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ERROR CODE F45 -- LOW/HIGH RANGE SYNCHRONISER POTENTIOMETER OUT OF CALIBRATED RANGE Effects: Transmission functions normally, but may lead to premature detection of synchroniser engagement and subsequent synchroniser damage.

Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

NOTE: This error code may be indicating wear on transmission components or a faulty potentiometer.

1. Perform the transmission calibration procedures to clear the error code.

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ERROR CODE F47 -- CLUTCH DISCONNECT SWITCH MISADJUSTED HIGH Possible failure modes: 1. Faulty connector 2. Incorrect clutch pedal potentiometer calibration 3. Incorrect clutch disconnect switch adjustment 4. Faulty clutch disconnect switch 5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch pedal potentiometer in HA. A. Operate the clutch pedal. If the values displayed do not change continuously between 0 to 99, perform the clutch potentiometer calibration procedure.

B. If the values displayed are okay, continue to step 2.

2. Check the clutch disconnect switch adjustment.

A. Depress the clutch pedal. While still in HA, check that an audible click is heard from the disconnect switch when the pedal is being raised between 8 -- 14% (indicated on the DOG). Adjust the disconnect switch as required.

B. If the disconnect switch is adjusted correctly, continue to step 3.

3. Check the clutch disconnect switch connector C076 and the transmission control module (TCM) connectors C100 and C101.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 4.

4. Check the clutch disconnect switch.

A. Disconnect connector C076. Check between the component side of connector: C076 pin 2 (Y/P/B) and C076 pin 3 (R/G/B) should indicate a closed circuit with the pedal released and an open circuit with the pedal depressed.

C076 pin 1 (W/Y) and C076 pin 4 (Y/P/B) should indicate an open circuit with the pedal released and a closed circuit with the pedal depressed.

If the switch is not okay, remove and replace the clutch disconnect switch.

B. If the switch is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F48 -- CLUTCH DISCONNECT SWITCH SHORT CIRCUIT Possible failure modes: 1. Faulty connector 2. Incorrect clutch pedal potentiometer calibration 3. Incorrect clutch disconnect switch adjustment 4. Faulty clutch disconnect switch 5. Faulty harness 6. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch pedal potentiometer in HA. A. Operate the clutch pedal. If the values displayed do not change continuously between 0 to 99, perform the clutch potentiometer calibration procedure.

B. If the values displayed are okay, continue to step 2.

2. Check the clutch disconnect switch adjustment.

A. Depress the clutch pedal. While still in HA, check that an audible click is heard from the disconnect switch when the pedal is being raised between 8 -- 14% (indicated on the DOG). Adjust the disconnect switch as required.

B. If the disconnect switch is adjusted correctly, continue to step 3.

3. Check the clutch disconnect switch connector C076 and the transmission control module (TCM) connectors C100 and C101.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 4.

4. Check the clutch disconnect switch.

A. Disconnect connector C076. Check between the component side of connector: C076 pin 2 (Y/P/B) and C076 pin 3 (R/G/B) should indicate a closed circuit with the pedal released and an open circuit with the pedal depressed.

C076 pin 1 (W/Y) and C076 pin 4 (Y/P/B) should indicate an open circuit with the pedal released and a closed circuit with the pedal depressed.

If the switch is not okay, remove and replace the clutch disconnect switch.

B. If the switch is okay, continue to step 5.

5. Check for a short to +Ve voltage.

A. Disconnect the shuttle lever connector C075. Turn the keystart ON. Check between connector: C076 pin 3 (R/G/B) and ground C076 pin 2 (Y/P/B) and ground If a voltage is indicated, repair or replace the harness as required.

If a voltage is not indicated, continue to step 6.

6. Check for a short circuit or short to ground.

A. Turn the keystart OFF. Disconnect connectors C100 and C101. Check between connector: C076 pin 2 (Y/P/B) and C076 pin 3 (R/G/B) C076 pin 3 (R/G/B) and ground C076 pin 2 (Y/P/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F49 -- TRANSMISSION OUTPUT SPEED SENSOR OPEN CIRCUIT Effects: Upshift in high range are inhibited.

1--2 second delay in allowing upshifts after clutchless take off.

Possible failure modes: 1. Faulty connector 2. Faulty output speed sensor 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the transmission output speed sensor connector C038 and the transmission control module (TCM) connectors C100 and C101.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 2.

2. Check the transmission output speed sensor.

A. Disconnect connector C038. Measure the resistance between the component side of connector C038 pin 1 (Y/N/B) and C038 pin 2 (B). If the resistance indicated is not approximately 0.80K Ohms -- 1.2K Ohms, remove and replace the output speed sensor.

B. If the output speed sensor is okay, continue to step 3.

3. Check for +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C038 pin 1 (Y/N/B) and ground. If +12 Volts is not indicated, repair or replace the harness as required.

B. If +12 Volts is indicated, continue to step 4.

4. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the transmission control module (TCM) connector C100 and C101.

Check between connector: C038 pin 1 (Y/N/B) and C101 pin 6 (Y/N/B) C038 pin 2 (B) and C100 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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ERROR CODE F50 -- TRANSMISSION OUTPUT SPEED SENSOR SHORT TO GROUND Effects: Upshifts in high range are inhibited.

1--2 second delay in allowing upshifts after clutchless take off.

Possible failure modes: 1. Faulty connector 2. Faulty output speed sensor 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the transmission output speed sensor connector C038 and the transmission control module (TCM) connector C100 and C101.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the transmission output speed sensor.

A. Disconnect connector C038. Measure the resistance between the component side of connector C038 pin 1 (Y/N/B) and C038 pin 2 (B). If the resistance indicated is not approximately 0.80K Ohms -- 1.2K Ohms, remove and replace the output speed sensor.

B. If the resistances indicated are okay, continue to step 3.

3. Check for a short to ground.

A. Check between the component side of connector: C038 pin 1 (Y/N/B) and ground C038 pin 2 (B) and ground If a short to ground is indicated, remove and replace the output speed sensor.

B. If the output speed sensor is okay, continue to step 4.

4. Check for a short to ground.

A. Disconnect the transmission control module (TCM) connector C101. Check between connector C038 pin 1 (Y/N/B) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F51 -- TEMPERATURE SENDER OPEN CIRCUIT ERROR CODE F52 -- TEMPERATURE SENDER SHORT TO GROUND Effects: Hot oil is assumed. If the oil is cold, sluggish shifting and a higher than normal clutch pedal bite point will be indicated.

Possible failure modes: 1. Faulty connector 2. Faulty temperature sender 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the temperature sender connector C023, transmission control module connector C100 and the general control module (GCM) connector C127.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 2.

2. Check the temperature sender.

A. Disconnect connector C023. Measure the resistance between the component side of connector: C023 pin A (B/G) and C023 pin B (B) C023 pin A (B/G) and ground C023 pin B (B) and ground If the resistance indicated is not between 460 Ohms -- 540 Ohms at 25 degrees centigrade or a short to ground is indicated, remove and replace the temperature sender.

B. If the temperature sender is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C023, C100 and C127. Check for an open circuit between connector: C023 pin A (B/G) and C100 pin 18 (B/G) C023 pin B (B) and C127 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short to ground A. Check between connector C023 pin A (B/G) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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ERROR CODE F53 -- +5 VOLT REFERENCE VOLTAGE TOO HIGH ERROR CODE F54 -- +5 VOLT REFERENCE VOLTAGE TOO LOW Effects: Transmission disabled.

Possible failure modes: 1. Faulty clutch pedal potentiometer 2. Faulty forward/reverse shuttle lever 3. Faulty upshift/downshift and range switches 4. Faulty harness 5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the clutch pedal potentiometer.

A. Disconnect the clutch pedal potentiometer connector C077. If F53/54 are cleared and F11 is displayed, remove and replace the clutch pedal potentiometer.

B. If error code F53/54 is still displayed, continue to step 3.

3. Check the forward/reverse shuttle lever.

A. Disconnect the forward/reverse shuttle lever connector C075. If F53/54 are cleared and F66 or F68 is displayed, remove and replace the forward/reverse shuttle lever.

B. If error code F53/54 is still displayed, continue to step 4.

4. Check the upshift/downshift and range switches A. Disconnect the gear selector switch assembly connector C103. If F53/54 are cleared and F60, F62 is displayed, remove and replace the gear selector assembly.

B. If error code F53/54 is still displayed, continue to step 5.

5. Check for a short to ground.

A. Disconnect the transmission control module (TCM) connector C101. With all of the above connectors disconnected, check between connector C101 pin 5 (G/B/S) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If a short to ground is not indicated, continue to step 6.

6. Check for a short to +Ve voltage.

A. Turn the keystart ON. Measure between connector C101 pin 5 (G/B/S) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F55 -- +8 VOLT REFERENCE VOLTAGE TOO HIGH ERROR CODE F56 -- +8 VOLT REFERENCE VOLTAGE TOO LOW Effects: Transmission disabled.

Possible failure modes: 1. Faulty medium/reverse range synchroniser potentiometer 2. Faulty low/high range synchroniser potentiometer 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the medium/reverse range synchroniser potentiometer.

A. Disconnect the medium/reverse range synchroniser potentiometer connector C030. If F55/56 are cleared and F41 or F44 is displayed, remove and replace the potentiometer.

B. If error code F55/56 is still displayed, continue to step 3.

3. Check the low/high range synchroniser potentiometer.

A. Disconnect the low/high range synchroniser potentiometer connector C029. If F55/56 are cleared and F43 or F45 is displayed, remove and replace the potentiometer.

B. If error code F55/56 is still displayed, continue to step 4.

4. Check for a short to ground.

A. Disconnect the transmission control module (TCM) connector C101. With all of the above connectors disconnected, check between connector C101 pin 25 (G/N/S) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If a short to ground is not indicated, continue to step 5.

5. Check for a short to +Ve voltage.

A. Turn the keystart ON. Measure between connector C101 pin 25 (G/N/S) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1453

ERROR CODE F59 -- FORWARD/NEUTRAL/REVERSE SWITCH DISAGREEMENT (MORE THAN ONE SWITCH IS ENGAGED) Effects: Transmission is disabled.

Possible failure modes: 1. Faulty forward/neutral/reverse switch 2. Faulty harness 3. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the forward/neutral/reverse (FNR) switch.

A. Disconnect the FNR switch connector C075. With the FNR switch in neutral, Measure the resistance between the component side of connector C075 pin 1 (G/B/S) and C075 pin 2 (S/R/B) should indicate 2.56K Ohms.

C075 pin 1 (G/B/S) and C075 pin 3 (S/U/B) should indicate 2.56K Ohms.

C075 pin 4 (Y/P/B) and C075 pin 5 (W/R) should indicate less than 5 Ohms.

If the resistances indicated are not okay, remove and replace the FNR switch.

B. If the FNR switch is okay, continue to step 2.

2. Check for an open circuit.

A. Disconnect the transmission control module (TCM) connector C100. Check between connector C100 pin 27 (Y/P/B) and C075 pin 4 (Y/P/B). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 3.

3. Check for a short circuit.

A. Check between connector: C100 pin 27 (Y/P/B) and C100 pin 20 (S/R/B) C100 pin 27 (Y/P/B) and C100 pin 7 (S/U/B) C100 pin 20 (S/R/B) and C100 pin 7 (S/U/B) If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 4.

4. Check for a short to +Ve voltage.

A. Turn the keystart ON. Measure between connector: C100 pin 20 (S/R/B) and ground C100 pin 7 (S/U/B) and ground If a voltage is indicated, repair or replace the harness as required B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F60 -- UPSHIFT SWITCH INPUT VOLTAGE LOW ERROR CODE F61 -- UPSHIFT SWITCH INPUT VOLTAGE HIGH Effects: NOTE: If required, keystart OFF and restart to select B1 or R1.

Upshift switch will not function. Higher gears cannot be selected.

Possible failure modes: 1. Faulty upshift switch 2. Faulty harness 3. Faulty secondary controller (CFPS) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the upshift switch in H5.

A. Turn the keystart ON. Depress the upshift switch, and check the display. If the display does not change to d25, continue to step 2.

B. If the display does change to d25, while still in H5 wiggle the harness and the connectors to check for an intermittent circuit. The display will change if an intermittent circuit is detected, repair or replace as required.

2. Check the upshift switch.

A. Disconnect the gear selector switch assembly connector C103. Measure the resistance between the component side of connector C103 pin 3 (S/LG/B) and C103 pin 1 (G/B/S). If the resistances indicated are not approximately 2.50K Ohms with the switch released and approximately 0.50K Ohms with the switch depressed, remove and replace the upshift switch.

If the resistances indicated are okay, continue to step 3.

3. Check for a short to +8 or +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C103 pin 1 (G/B/S) and ground. If the voltage indicated is greater than +5 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +5 Volts, continue to step 4.

4. Check for a short to +Ve voltage.

A. Turn the keystart ON. Measure the voltage between connector C103 pin 3 (S/LG/B) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 5.

5. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the transmission control module (TCM) connector C100. Check between connector C100 pin 32 (S/LG/B) and C103 pin 3 (S/LG/B). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between connector C100 pin 32 (S/LG/B) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1459

ERROR CODE F62 -- DOWNSHIFT SWITCH INPUT VOLTAGE LOW ERROR CODE F63 -- DOWNSHIFT SWITCH INPUT VOLTAGE HIGH Effects: NOTE: If required, keystart OFF and restart to select B1 or R1.

Downshift switch will not function. Lower gears cannot be selected.

Possible failure modes: 1. Faulty downshift switch 2. Faulty harness 3. Faulty secondary controller (CFPS) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the downshift switch in H5.

A. Turn the keystart ON. Depress the downshift switch, and check the display. If the display does not change to d24, continue to step 2.

B. If the display does change to d24, while still in H5 wiggle the harness and the connectors to check for an intermittent circuit. The display will change if an intermittent circuit is detected, repair or replace as required.

2. Check the downshift switch.

A. Disconnect the gear selector switch assembly connector C103. Measure the resistance between the component side of connector C103 pin 4 (S/K/B) and C103 pin 1 (G/B/S). If the resistances indicated are not approximately 2.50K Ohms with the switch released and approximately 0.50K Ohms with the switch depressed, remove and replace the downshift switch.

B. If the downshift switch is okay, continue to step 3.

3. Check for a short to +8 or +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C103 pin 1 (G/B/S) and ground. If the voltage indicated is greater than +5 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +5 Volts, continue to step 4.

4. Check for a short to +Ve voltage.

A. Turn the keystart ON. Measure the voltage between connector C103 pin 4 (S/K/B) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 5.

5. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the transmission control module (TCM) connector C100. Check between connector C100 pin 6 (S/K/B) and C103 pin 4 (S/K/B). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between connector C100 pin 6 (S/K/B) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F64 -- RANGESHIFT SWITCH INPUT VOLTAGE LOW ERROR CODE F65 -- RANGESHIFT SWITCH INPUT VOLTAGE HIGH Effects: NOTE: If required, another range may be selected by depressing the clutch pedal or shifting into neutral.

Rangeshift switch will not function.

Possible failure modes: 1. Faulty rangeshift switch 2. Faulty harness 3. Faulty secondary controller (CFPS) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the downshift switch in H5.

A. Turn the keystart ON. Depress the downshift switch, and check the display. If the display does not change to d24, continue to step 2.

B. If the display does change to d24, while still in H5 wiggle the harness and the connectors to check for an intermittent circuit. The display will change if an intermittent circuit is detected, repair or replace as required.

2. Check the downshift switch.

A. Disconnect the gear selector switch assembly connector C103. Measure the resistance between the component side of connector C103 pin 2 (TQ/B) and C103 pin 1 (G/B/S). If the resistances indicated are not approximately 2.50K Ohms with the switch released and approximately 0.50K Ohms with the switch depressed, remove and replace the downshift switch.

B. If the downshift switch is okay, continue to step 3.

3. Check for a short to +8 or +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C103 pin 1 (G/B/S) and ground. If the voltage indicated is not approximately +5 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +5 Volts, continue to step 4.

4. Check for a short to +Ve voltage.

A. Turn the keystart ON. Measure the voltage between connector C103 pin 2 (TQ/B) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 5.

5. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the transmission control module (TCM) connector C100. Check between connector C100 pin 17 (TQ/B) and C103 pin 2 (TQ/B). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between connector C100 pin 17 (TQ/B) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1465

ERROR CODE F66 -- SHUTTLE LEVER FORWARD SWITCH INPUT VOLTAGE LOW ERROR CODE F67 -- SHUTTLE LEVER FORWARD SWITCH INPUT VOLTAGE HIGH Effects: There will be a short delay recognising that forward has been selected.

Possible failure modes: 1. Faulty shuttle lever forward switch 2. Faulty harness 3. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the shuttle lever forward switch in H5.

A. Turn the keystart ON. Move the shuttle lever into forward, and check the display. If the display does not change to d22, continue to step 2.

B. If the display does change to d22, while still in H5 wiggle the harness and the connectors to check for an intermittent circuit. The display will change if an intermittent circuit is detected, repair or replace as required.

2. Check the shuttle lever forward switch.

A. Disconnect the shuttle lever connector C075. Move the shuttle lever from neutral to forward and measure the resistance between the component side of connector C075 pin 1 (G/B/S) and C075 pin 2 (S/R/B). If the resistance indicated is not approximately 2.50K Ohms in neutral and approximately 0.50K Ohms in the forward position, remove and replace the shuttle lever.

B. If the forward switch is okay, continue to step 3.

3. Check for a short to +8 or +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C075 pin 1 (G/B/S) and ground. If the voltage indicated is greater than +5 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +5 Volts, continue to step 4.

4. Check for a short to +Ve voltage.

A. Turn the keystart ON. Measure the voltage between connector C075 pin 2 (S/R/B) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 5.

5. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the transmission control module (TCM) connector C100. Check between connector C100 pin 20 (S/R/B) and C075 pin 2 (S/R/B). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between connector C100 pin 20 (S/R/B) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F68 -- SHUTTLE LEVER REVERSE SWITCH INPUT VOLTAGE LOW ERROR CODE F69 -- SHUTTLE LEVER REVERSE SWITCH INPUT VOLTAGE HIGH Effects: There will be a short delay recognising that reverse has been selected.

Possible failure modes: 1. Faulty shuttle lever reverse switch 2. Faulty harness 3. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the shuttle lever reverse switch in H5.

A. Turn the keystart ON. Move the shuttle lever into reverse, and check the display. If the display does not change to d23, continue to step 2.

B. If the display does change to d23, while still in H5 wiggle the harness and the connectors to check for an intermittent circuit. The display will change if an intermittent circuit is detected, repair or replace as required.

2. Check the shuttle lever reverse switch.

A. Disconnect the shuttle lever connector C075. Move the shuttle lever from neutral to reverse and measure the resistance between the component side of connector C075 pin 1 (G/B/S) and C075 pin 3 (S/U/B). If the resistance indicated is not approximately 2.50K Ohms in neutral and approximately 0.50K Ohms in the reverse position, remove and replace the shuttle lever.

B. If the reverse switch is okay, continue to step 3.

3. Check for a short to +8 or +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C075 pin 1 (G/B/S) and ground. If the voltage indicated is greater than +5 Volts, repair or replace the harness as required.

B. If the voltage indicated is approximately +5 Volts, continue to step 4.

4. Check for a short to +Ve voltage.

A. Turn the keystart ON. Measure the voltage between connector C075 pin 3 (S/U/B) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 5.

5. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the transmission control module (TCM) connector C100. Check between connector C100 pin 7 (S/U/B) and C075 pin 3 (S/U/B). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between connector C100 pin 7 (S/U/B) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1471

ERROR CODE F73 -- TRANSMISSION MID SPEED SENSOR OPEN CIRCUIT Effects: Centrifugal compensation assumes 2300rpm for clutch B, minor shift performance loss at other speeds. Gears affected are 2, 4 and 6.

Possible failure modes: 1. Faulty connector 2. Faulty transmission mid speed sensor 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the transmission mid speed sensor connector C037 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the transmission mid speed sensor.

A. Disconnect connector C037. Measure the resistance between the component side of connector C037 pin 1 (R/LTG/B) and C037 pin 2 (L/B/G). If the resistance indicated is not approximately 0.80K Ohms -- 1.2K Ohms, remove and replace the transmission mid speed sensor.

B. If the transmission mid speed sensor is okay, continue to step 3.

3. Check for +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C037 pin 1 (R/LTG/B) and ground. If +12 Volts is not indicated, repair or replace the harness as required.

B. If +12 Volts is indicated, continue to step 4.

4. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the transmission control module connector C101. Check between connector: C037 pin 2 (P/B/G) and C101 pin 2 (P/B/G) C037 pin 3 (B) and C101 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F74 -- TRANSMISSION MID SPEED SENSOR SHORT TO GROUND Effects: Centrifugal compensation assumes 2300rpm for clutch B, minor shift performance loss at other speeds. Gears affected are 2, 4 and 6.

Possible failure modes: 1. Faulty connector 2. Faulty transmission mid speed sensor 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the transmission mid speed sensor connector C037 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the transmission mid speed sensor.

A. Disconnect connector C037. Measure the resistance between the component side of connector C037 pin 1 (R/LTG/B) and C037 pin 2 (L/B/G). If the resistance indicated is not approximately 0.80K Ohms -- 1.2K Ohms, remove and replace the transmission mid speed sensor.

B. If the resistances indicated are okay, continue to step 3.

3. Check for a short to ground.

A. Check between the component side of connector: C037 pin 1 (R/LTG/B) and ground C037 pin 2 (L/B/G) and ground C037 pin 3 (B) and ground If a short to ground is indicated, remove and replace the transmission mid speed sensor.

B. If the transmission mid speed sensor is okay, continue to step 4.

4. Check for a short to ground.

A. Disconnect the connector C101. Check between connector C037 pin 2 (L/B/G) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F75 -- SWAPPED MID AND OUTPUT SPEED SENSORS Effects: After the error is detected the tractor will operate normally.

Possible failure modes: 1. Mid and output speed sensor connectors swapped 2. Faulty connector Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the transmission mid speed sensor connector C037 and the output speed sensor connector C038.

A. If the speed sensor connectors have been swapped. Disconnect the connectors and re--connect correctly.

B. If the connectors are connected correctly, continue to step 2.

2. Check the extension harness connector C020.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1479

ERROR CODE F77 -- NO SIGNAL FROM THE OUTPUT SPEED SENSOR Effects: Upshifts in high range inhibited. Jerky or sluggish shuttle shifting and automatic take off generally poor shifting.

Possible failure modes: 1. Faulty connector 2. Faulty output speed sensor 3. Faulty harness 4. Mechanical fault within the transmission/rear axle.

5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the output speed sensor connector C038 and the transmission control module (TCM) connector C101.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 3.

3. Check if the tractor is moving.

A. If the tractor is not moving. Possible mechanical fault within the transmission/rear axle.

B. If the tractor is moving, continue to step 4.

4. Check the output speed sensor.

A. If installed incorrectly, loose or damaged, refit correctly or replace as required.

B. If the sensor is installed correctly, remove and replace the output speed sensor.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1481

ERROR CODE F78 -- NO SIGNAL FROM THE TRANSMISSION MID SPEED SENSOR Effects: Centrifugal compensation assumes 2300 RPM for clutch B. Minor shift quality loss at other speeds, only affects gears 2, 4 and 6.

Possible failure modes: 1. Faulty connector 2. Faulty transmission mid speed sensor 3. Faulty harness 4. Mechanical fault within the transmission/rear axle.

5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the transmission mid speed sensor connector C037 and the transmission control module (TCM) connector C101.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 3.

3. Check if the tractor is moving.

A. If the tractor is not moving. Possible mechanical fault within the transmission/rear axle.

B. If the tractor is moving, continue to step 4.

4. Check the transmission mid speed sensor.

A. If installed incorrectly, loose or damaged, refit correctly or replace as required.

B. If the sensor is installed correctly, remove and replace the mid speed sensor.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1483

ERROR CODE F79 -- ENGINE RPM EXCEEDS 3000 RPM Effects: Poor shift quality and possibly unable to perform calibration.

Possible failure modes: 1. Engine speed has exceeded 3000 rev/min 2. Faulty alternator 3. Faulty harnes 4. Faulty transmission control module (TCM) Solution: 1. Check that the engine has not exceeded 3000 rev/min.

A. Reduce the engine speed to 2800 rev/min. If the error code clears the tractor is functioning correctly.

B. If the engine speed has not exceeded 3000 rev/min, continue to step 2.

2. Check the alternator output.

A. Start the engine. Measure the voltage between the alternator speed terminal connector W (WS) and ground. If the voltage indicated is not approximately +7 Volts, remove the alternator and repair or replace as required.

B. If the alternator is okay, continue to step 3.

3. Check for a short to +12 Volts.

A. Disconnect the transmission control module (TCM) connector C100. Measure the voltage between connector C100 pin 15 (WS) and ground. If +12 Volts is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F80 -- TRANSMISSION OUTPUT REV/MIN TOO HIGH FOR THE SELECTED GEAR NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

This error code will self clear when the speed is correct for the gear selected.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1487

ERROR CODE F81 -- CLUTCH SLIPPING Effects: Output speed too low for the gear selected.

Transmission disabled.

Possible failure modes: 1. Faulty clutch or range solenoid 2. Faulty hydraulic circuit 3. Faulty output speed sensor 4. Mechanical fault Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check if the transmission clutches are slipping.

A. Operate the tractor in all gears. If there is any abnormal noise or clutch slipping, identify the slipping clutch and continue to step 3.

B. If there is no clutch slipping, continue to step 6.

3. Check the identified faulty clutch solenoid connector.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 4.

4. Check all the clutch pack pressures.

A. If the pressures indicated are approximately 16 bar, possible clutch friction discs worn. If the pressures are low on all of the clutches, continue to hydraulic troubleshooting procedures.

B. If the pressures indicated are not approximately 16 bar on one or more of the clutches, continue to step 5.

5. Check the identified faulty clutch solenoid.

A. Disconnect the faulty clutch solenoid connector. Measure the resistance between the solenoid terminals.

If the resistance indicated is not between 8 Ohms -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the resistance indicated is okay, check if the solenoid valve is sticking. If the solenoid is okay, possible internal leakage within the transmission.

6. Check the output speed sensor.

A. Disconnect the output speed sensor connector C038. Measure the resistance between the component side of connector C038 pin 1 (Y/N/B) and C038 pin 2 (B). If the resistance indicated is not approximately 0.80K Ohms -- 1.2K Ohms, remove and replace the output speed sensor.

B. If the resistances indicated are okay, the signal from the speed sensor may still be incorrect. Remove and replace the output speed sensor.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F1A -- CLUTCH A SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch A solenoid connector C028 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the clutch A solenoid.

A. Disconnect connector C028. Measure the resistance between the solenoid terminals: Terminal A and terminal B Terminal A and ground Terminal B and ground If the resistance indicated is not between 8 Ohms -- 11 Ohms or a short to ground is indicated, remove and replace the clutch A solenoid.

B. If clutch A solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C101. Check between connector: C028 pin A (TQ/K/B) and C101 pin 26 (TQ/K/B) C028 pin B (TQ/W/B) and C101 pin 18 (TQ/W/B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C028 pin A (TQ/K/B) and C028 pin B (TQ/W/B) C028 pin A (TQ/K/B) and ground C028 pin B (TQ/W/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1493

ERROR CODE F1B -- CLUTCH B SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch B solenoid connector C027 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the clutch B solenoid.

A. Disconnect connector C027. Measure the resistance between the solenoid terminals: Terminal A and terminal B Terminal A and ground Terminal B and ground If the resistance indicated is not between 8 Ohms -- 11 Ohms or a short to ground is indicated, remove and replace the clutch B solenoid.

B. If clutch B solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C101. Check between connector: C027 pin A (L/O/S) and C101 pin 12 (L/O/S) C027 pin B (TQ/N/B) and C101 pin 17 (TQ/N/B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C027 pin A (L/O/S) and C027 pin B (TQ/N/B) C027 pin A (L/O/S) and ground C027 pin B (TQ/N/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F1C -- CLUTCH C SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch C solenoid connector C026 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the clutch C solenoid.

A. Disconnect connector C026. Measure the resistance between the solenoid terminals: Terminal A and terminal B Terminal A and ground Terminal B and ground If the resistance indicated is not between 8 Ohms -- 11 Ohms or a short to ground is indicated, remove and replace the clutch C solenoid.

B. If clutch C solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C101. Check between connector: C026 pin A (L/R/S) and C101 pin 36 (P/R/S) C026 pin B (TQ/O/B) and C101 pin 11 (TQ/O/B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C026 pin A (L/R/S) and C026 pin B (TQ/O/B) C026 pin A (L/R/S) and ground C026 pin B (TQ/O/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE F1D -- CLUTCH D SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch D solenoid connector C025 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the clutch D solenoid.

A. Disconnect connector C025. Measure the resistance between the solenoid terminals: Terminal A and terminal B Terminal A and ground Terminal B and ground If the resistance indicated is not between 8 Ohms -- 11 Ohms or a short to ground is indicated, remove and replace the clutch D solenoid.

B. If clutch D solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C101. Check between connector: C025 pin A (L/N/S) and C101 pin 13 (L/N/S) C025 pin B (TQ/R/B) and C101 pin 14 (TQ/R/B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C025 pin A (L/N/S) and C025 pin B (TQ/R/B) C025 pin A (L/N/S) and ground C025 pin B (TQ/R/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F1E -- CLUTCH E SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the clutch E solenoid connector C024 and the transmission control module (TCM) connector C100 and C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the clutch E solenoid.

A. Disconnect connector C024. Measure the resistance between the solenoid terminals: Terminal A and terminal B Terminal A and ground Terminal B and ground If the resistance indicated is not between 8 Ohms -- 11 Ohms or a short to ground is indicated, remove and replace the clutch E solenoid.

B. If clutch E solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C100 and C101. Check between connector: C024 pin A (L/TQ/S) and C100 pin 28 (L/TQ/S) C024 pin B (TQ/S/B) and C101 pin 20 (TQ/S/B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C024 pin A (L/TQ/S) and C024 pin B (TQ/S/B) C024 pin A (L/TQ/S) and ground C024 pin B (TQ/S/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1505

ERROR CODE F1H -- HIGH RANGE SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the high range solenoid connector C039 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the high range solenoid.

A. Disconnect connector C039. Measure the resistance between the solenoid terminals: Terminal 1 and terminal 2 Terminal 1 and ground Terminal 2 and ground If the resistance indicated is not between 6 Ohms -- 8 Ohms or a short to ground is indicated, remove and replace the high range solenoid.

B. If the high range solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C101. Check between connector: C039 pin 1 (S/N/B) and C101 pin 16 (S/N/B) C039 pin 2 (B) and ground If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C039 pin 1 (S/N/B) and C039 pin 2 (B) C039 pin 1 (S/N/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F1L -- LOW RANGE SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the low range solenoid connector C032 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the low range solenoid.

A. Disconnect connector C032. Measure the resistance between the solenoid terminals: Terminal 1 and terminal 2 Terminal 1 and ground Terminal 2 and ground If the resistance indicated is not between 6 Ohms -- 8 Ohms or a short to ground is indicated, remove and replace the low range solenoid.

B. If the low range solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C101. Check between connector: C032 pin 1 (S/O/B) and C101 pin 19 (S/O/B) C032 pin 2 (B) and ground If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C032 pin 1 (S/O/B) and C032 pin 2 (B) C032 pin 1 (S/O/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1511

ERROR CODE F1P -- REVERSE RANGE SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the reverse range solenoid connector C040 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the reverse range solenoid.

A. Disconnect connector C040. Measure the resistance between the solenoid terminals: Terminal 1 and terminal 2 Terminal 1 and ground Terminal 2 and ground If the resistance indicated is not between 6 Ohms -- 8 Ohms or a short to ground is indicated, remove and replace the reverse range solenoid.

B. If the reverse range solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C101. Check between connector: C040 pin 1 (G/O/S) and C101 pin 10 (G/O/S) C040 pin 2 (B) and ground If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C040 pin 1 (G/O/S) and C040 pin 2 (B) C040 pin 1 (G/O/S) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F1U -- MEDIUM RANGE SOLENOID OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the medium range solenoid connector C031 and the transmission control module (TCM) connector C101.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the medium range solenoid.

A. Disconnect connector C031. Measure the resistance between the solenoid terminals: Terminal 1 and terminal 2 Terminal 1 and ground Terminal 2 and ground If the resistance indicated is not between 6 Ohms -- 8 Ohms or a short to ground is indicated, remove and replace the medium range solenoid.

B. If the medium range solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect connector C101. Check between connector: C031 pin 1 (K/LG/B) and C101 pin 15 (K/LG/B) C031 pin 2 (B) and ground If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C031 pin 1 (K/LG/B) and C031 pin 2 (B) C031 pin 1 (K/LG/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1517

ERROR CODE F2A -- CLUTCH A SOLENOID OVER VOLTAGE Possible failure modes: 1. External power supply connected 2. Tractor overcharging 3. Faulty solenoid 4. Faulty harness 5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check that the tractor battery power supply has not been connected to an external power supply.

A. If an external power supply is connected to the tractor, disconnect and test the system for normal operation.

B. If an external power supply is not connected to the tractor, continue to step 3.

3. Check the alternator output.

WARNING: Beware of moving parts.

A. Start the engine and run at 2000 rev/min. Measure the voltage between the alternator terminal B+ (N) and ground. If the voltage indicated is greater than approximately 15 Volts, continue to test for a fault in the charging system.

B. If the voltage indicated is okay, continue to step 4.

4. Check clutch A solenoid.

A. Disconnect clutch A solenoid connector C028. Measure the resistance between the solenoid terminal A and terminal B. If the resistance indicated is not between 6 Ohms -- 8 Ohms, remove and replace clutch A solenoid.

B. If clutch A solenoid is okay, continue to step 5.

5. Check for +Ve Voltage.

A. Disconnect the transmission control module (TCM) connector C101. Turn the keystart ON. Measure the voltage between connector: C101 pin 26 (TQ/K/B) and ground C101 pin 18 (TQ/W/B) and ground If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 6.

6. Check for a short circuit.

A. Turn the keystart OFF. Check between connector C101 pin 26 (TQ/K/B) and C101 pin 18 (TQ/W/B). If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F2B -- CLUTCH B SOLENOID OVER VOLTAGE Possible failure modes: 1. External power supply connected 2. Tractor overcharging 3. Faulty solenoid 4. Faulty harness 5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check that the tractor battery power supply has not been connected to an external power supply.

A. If an external power supply is connected to the tractor, disconnect and test the system for normal operation.

B. If an external power supply is not connected to the tractor, continue to step 3.

3. Check the alternator output.

WARNING: Beware of moving parts.

A. Start the engine and run at 2000 rev/min. Measure the voltage between the alternator terminal B+ (N) and ground. If the voltage indicated is greater than approximately 15 Volts, continue to test for a fault in the charging system.

B. If the voltage indicated is okay, continue to step 4.

4. Check clutch B solenoid.

A. Disconnect clutch B solenoid connector C027. Measure the resistance between the solenoid terminal A and terminal B. If the resistance indicated is not between 6 Ohms -- 8 Ohms, remove and replace clutch B solenoid.

B. If clutch B solenoid is okay, continue to step 5.

5. Check for +Ve Voltage.

A. Disconnect the transmission control module (TCM) connector C101. Turn the keystart ON. Measure the voltage between connector: C101 pin 12 (L/O/S) and ground C101 pin 17 (TQ/N/B) and ground If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 6.

6. Check for a short circuit.

A. Turn the keystart OFF. Check between connector C101 pin 12 (L/O/S) and C101 pin 17 (TQ/N/B). If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1523

ERROR CODE F2C -- CLUTCH C SOLENOID OVER VOLTAGE Possible failure modes: 1. External power supply connected 2. Tractor overcharging 3. Faulty solenoid 4. Faulty harness 5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check that the tractor battery power supply has not been connected to an external power supply.

A. If an external power supply is connected to the tractor, disconnect and test the system for normal operation.

B. If an external power supply is not connected to the tractor, continue to step 3.

3. Check the alternator output.

WARNING: Beware of moving parts.

A. Start the engine and run at 2000 rev/min. Measure the voltage between the alternator terminal B+ (N) and ground. If the voltage indicated is greater than approximately 15 Volts, continue to test for a fault in the charging system.

B. If the voltage indicated is okay, continue to step 4.

4. Check clutch C solenoid.

A. Disconnect clutch C solenoid connector C026. Measure the resistance between the solenoid terminal A and terminal B. If the resistance indicated is not between 6 Ohms -- 8 Ohms, remove and replace clutch C solenoid.

B. If clutch C solenoid is okay, continue to step 5.

5. Check for +Ve Voltage.

A. Disconnect the transmission control module (TCM) connector C101. Turn the keystart ON. Measure the voltage between connector: C101 pin 36 (P/R/S) and ground C101 pin 11 (TQ/O/B) and ground If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 6.

6. Check for a short circuit.

A. Turn the keystart OFF. Check between connector C101 pin 36 (P/R/S) and C101 pin 11 (TQ/O/B). If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE F2D -- CLUTCH D SOLENOID OVER VOLTAGE Possible failure modes: 1. External power supply connected 2. Tractor overcharging 3. Faulty solenoid 4. Faulty harness 5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check that the tractor battery power supply has not been connected to an external power supply.

A. If an external power supply is connected to the tractor, disconnect and test the system for normal operation.

B. If an external power supply is not connected to the tractor, continue to step 3.

3. Check the alternator output.

WARNING: Beware of moving parts.

A. Start the engine and run at 2000 rev/min. Measure the voltage between the alternator terminal B+ (N) and ground. If the voltage indicated is greater than approximately 15 Volts, continue to test for a fault in the charging system.

B. If the voltage indicated is okay, continue to step 4.

4. Check clutch D solenoid.

A. Disconnect clutch D solenoid connector C025. Measure the resistance between the solenoid terminal A and terminal B. If the resistance indicated is not between 6 Ohms -- 8 Ohms, remove and replace clutch D solenoid.

B. If clutch D solenoid is okay, continue to step 5.

5. Check for +Ve Voltage.

A. Disconnect the transmission control module (TCM) connector C101. Turn the keystart ON. Measure the voltage between connector: C101 pin 13 (L/N/S) and ground C101 pin 14 (TQ/R/B) and ground If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 6.

6. Check for a short circuit.

A. Turn the keystart OFF. Check between connector C101 pin 13 (L/N/S) and C101 pin 14 (TQ/R/B). If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1529

ERROR CODE F2E -- CLUTCH E SOLENOID OVER VOLTAGE Possible failure modes: 1. External power supply connected 2. Tractor overcharging 3. Faulty solenoid 4. Faulty harness 5. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check that the tractor battery power supply has not been connected to an external power supply.

A. If an external power supply is connected to the tractor, disconnect and test the system for normal operation.

B. If an external power supply is not connected to the tractor, continue to step 3.

3. Check the alternator output.

WARNING: Beware of moving parts.

A. Start the engine and run at 2000 rev/min. Measure the voltage between the alternator terminal B+ (N) and ground. If the voltage indicated is greater than approximately 15 Volts, continue to test for a fault in the charging system.

B. If the voltage indicated is okay, continue to step 4.

4. Check clutch E solenoid.

A. Disconnect clutch E solenoid connector C024. Measure the resistance between the solenoid terminal A and terminal B. If the resistance indicated is not between 6 Ohms -- 8 Ohms, remove and replace clutch E solenoid.

B. If clutch E solenoid is okay, continue to step 5.

5. Check for +Ve Voltage.

A. Disconnect the transmission control module (TCM) connector C100 and C101. Turn the keystart ON. Measure the voltage between connector: C100 pin 28 (L/TQ/S) and ground C101 pin 20 (TQ/S/B) and ground If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 6.

6. Check for a short circuit.

A. Turn the keystart OFF. Check between connector C100 pin 28 (L/TQ/S) and C101 pin 20 (TQ/S/B). If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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ERROR CODE CP -- DEPRESS THE CLUTCH PEDAL TO RE--ENABLE THE TRANSMISSION Effects: Transmission disabled.

Depress the clutch pedal or cycle the shuttle lever to re--enable the transmission. If CP is still displayed, continue to the solution.

Possible failure modes: 1. Faulty connector 2. Faulty shuttle lever neutral switch 3. Faulty harness 4. Faulty transmission control module (TCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Depress the clutch pedal or cycle the shuttle lever to re--enable the transmission.

A. If CP is not displayed, test the system for normal operation.

B. If CP is still displayed, continue to step 2.

2. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 3.

3. Check the transmission control module (TCM) connectors C100, C101, extension harness connector C001 and the forward/neutral/reverse (FNR) shuttle lever connector C075.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 4.

4. Check for a short to ground.

A. Disconnect connector C100. With the shuttle lever in forward or reverse, check between connector C100 pin 27 (Y/P/B) and ground. Wiggle the harness and the connectors to check for an intermittent circuit. If a short to ground is indicated, repair or replace the harness as required.

B. If a short to ground is not indicated, continue to step 5.

5. Check the shuttle lever neutral switch.

A. Disconnect connector C075. With the shuttle lever in neutral, measure the resistance between the component side of connector C075 pin 4 (Y/P/B) and C075 pin 5 (W/R). If an open circuit is indicated, remove and replace the shuttle lever.

B. If the neutral switch is okay, continue to step 6.

6. Check for an open circuit.

A. With the shuttle lever in neutral, check between connector C075 pin 4 (Y/P/B) and C100 pin 27 (Y/P/B).

Wiggle the harness and the connectors to check for an intermittent circuit. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 6.

7. Check for +12 Volts.

A. Disconnect connector C101. Turn the keystart ON. Measure the voltage between connector: C101 pin 29 (U/R/B) and ground C101 pin 34 (U/R/B) and ground C101 pin 35 (U/R/B) and ground Wiggle the harness and the connectors to check for an intermittent circuit. If the voltage indicated is not approximately +12 Volts. Repair or replace the harness as required.

B. If the voltage indicated is approximately +12 Volts, continue to step 8.

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8. Check for an open circuit.

A. Turn the keystart OFF. Check between connector: C101 pin 32 (B) and ground C101 pin 33 (B) and ground Wiggle the harness and the connectors to check for an intermittent circuit. If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the transmission control module (TCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE FCA -- CLUTCH A NOT CALIBRATED ERROR CODE FCB -- CLUTCH B NOT CALIBRATED ERROR CODE FCC -- CLUTCH C NOT CALIBRATED ERROR CODE FCD -- CLUTCH D NOT CALIBRATED ERROR CODE FCE -- CLUTCH E NOT CALIBRATED Effects: Poor clutch performance of the uncalibrated clutch.

Possible failure modes: 1. Faulty solenoid 2. Faulty hydraulic circuit 3. Mechanical fault Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Perform the transmission calibration procedure.

A. If the error code is still displayed, continue to step 2.

2. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 3.

3. Check the solenoid of the faulty clutch.

A. Remove the solenoid, clean or replace as required.

B. If the error code is still displayed, continue to step 4.

4. Check the clutch pack pressures.

A. If the pressures indicated are approximately 16 bar, possible mechanical fault within the transmission. If the pressures are low on all of the clutches, continue to hydraulic troubleshooting procedures.

B. If the pressures indicated are not approximately 16 bar on one or more of the clutches. Possible transmission internal leakage.

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ERROR CODE U19 -- OIL TEMPERATURE BELOW 10 DEGREES CENTIGRADE Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Warm the oil to above 10 degrees centigrade, before proceeding with the calibration procedures.

ERROR CODE U21 -- ENGINE RPM TOO LOW Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Increase the engine rpm to approximately 1200 rev/min.

ERROR CODE U22 -- ENGINE RPM TOO HIGH Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Decrease the engine rpm to approximately 1200 rev/min.

ERROR CODE U23 -- SHUTTLE LEVER IN NEUTRAL Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Place the shuttle lever in forward.

ERROR CODE U26 -- CLUTCH PEDAL NOT RELEASED Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Release the clutch pedal.

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ERROR CODE U31 -- OUTPUT SPEED SENSED -- TRACTOR MOVING Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Make sure the handbrake is applied and the wheels are choked. If the error code is still displayed, check the transmission mid and output speed sensor connectors are not swapped. If the connectors are connected correctly, possible mechanical fault within the transmission.

ERROR CODE U36 -- MAXIMUM ALLOWED CLUTCH CALIBRATION VALUE EXCEEDED Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Current value exceeded without lugging the engine down. Possible PWM valve faulty or a low hydraulic pressure fault.

ERROR CODE U37 -- ENGINE RPM DROPPED TOO SOON Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Engine lugged down too soon. Possible PWM valve faulty or a mechanical fault within the transmission.

ERROR CODE U81 -- NO MEDIUM/REVERSE RANGE SYNCHRONISER MOVEMENT SENSED ERROR CODE U82 -- NO LOW/HIGH RANGE SYNCHRONISER MOVEMENT SENSED Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the hydraulic pressure of the synchroniser actuating circuit.

A. If the pressures indicated are between 15 -- 18 bar, possible potentiometer and its linkage is faulty or a mechanical fault within the transmission. If the pressures are low on all of the synchroniser actuating circuits, continue to hydraulic troubleshooting procedures.

B. If the pressures are low on only one of the synchroniser actuating circuits, continue to step 3.

3. Check the identified faulty synchroniser solenoid.

A. Disconnect the connector for the faulty synchroniser solenoid. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 8 Ohms -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the resistance indicated is okay, check if the solenoid valve is sticking. If the solenoid is okay, possible internal leakage within the transmission.

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ERROR CODE U83 -- SYNCHRONISER POTENTIOMETER CONNECTORS SWAPPED Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Disconnect the connectors and re--connect correctly.

ERROR CODE U84 -- REVERSE AND HIGH RANGE SYNCHRONISER SOLENOID CONNECTORS SWAPPED Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Disconnect the connectors and re--connect correctly.

ERROR CODE U85 -- MEDIUM AND LOW RANGE SYNCHRONISER SOLENOID CONNECTORS SWAPPED Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Disconnect the connectors and re--connect correctly.

ERROR CODE U86 -- MEDIUM/REVERSE RANGE SYNCHRONISER NEUTRAL ERROR ERROR CODE U87 -- LOW/HIGH RANGE SYNCHRONISER NEUTRAL ERROR Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Synchroniser is not in neutral. Check the synchroniser movement in HL. If the synchroniser is not in neutral, possible potentiometer and its linkage is faulty or a mechanical fault within the transmission.

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ERROR CODE U88 -- MEDIUM/REVERSE RANGE SYNCHRONISER CALIBRATION VALUES OUT OF TOLERANCE ERROR CODE U89 -- LOW/HIGH RANGE SYNCHRONISER CALIBRATION VALUES OUT OF TOLERANCE Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the potentiometer operation. If the values indicated are to specifications, possible faulty potentiometer linkage.

ERROR CODE CF -- CALIBRATION PROCEDURE COMPLETED SUCCESSFULLY Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Message for information only. Press upshift to proceed.

ERROR CODE CH -- OIL TEMPERATURE ABOVE 105 DEGREES CENTIGRADE Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Message for information only. Press upshift to proceed.

ERROR CODE CL -- OIL TEMPERATURE BETWEEN 10 AND 60 DEGREES CENTIGRADE Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Message for information only. Press upshift to proceed

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 ELECTRONIC DRAFT CONTROL FAULT CODE LISTING

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MODELS: 120 TO 155 -- RANGE COMMAND TRANSMISSION Fault Code

Fault description

02

Poor or no signal from tractor performance monitor radar

03

Radar (ground speed) greater than wheel speed

04

Wheel speed greater than maximum speed of tractor

06

Slip control voltage low (short or open circuit)

07

Slip control voltage high (damaged potentiometer or short to +12 Volts)

08

Raise/work switch failure

09

Both external lift/lower fender switches are being operated simultaneously

10

Height limit control voltage low (short or open circuit)

11

Height limit control voltage high (damaged potentiometer or short to +12 Volts)

12

Drop rate control voltage low (short or open circuit)

13

Drop rate control voltage high (damaged potentiometer or short to +12 Volts

14

Open circuit connection to load sensing pin, short circuit to ground or failed load sensing pin

15

Load sensing pin short circuit to +12 Volts, failed or corroded load sensing pin

16

Open circuit connection to load sensing pin, short circuit to ground or failed load sensing pin

17

Load sensing pin short circuit to +12 Volts, failed or corroded load sensing pin

18

Both load sensing pins disconnected

19

Pin reference voltage less than 8 Volts (short or open circuit)

20

Pin reference voltage greater than 8 volts (short to +12 Volts)

21

Draft sensitivity control voltage low (short or open circuit)

22

Draft sensitivity control voltage high (damaged potentiometer or short to +12 Volts)

23

Control panel disconnected

24

Perform hydraulic lift calibration

HL

Height limit incorrectly set to perform auto calibration

25

Position lever potentiometer control voltage low (short or open circuit)

26

Position lever potentiometer control voltage high (damaged potentiometer or short to +12 Volts)

27

Lift arm sensing control voltage low (short or open circuit)

28 29

Lift arm position sensing control voltage high (damaged potentiometer or short to +12 Volts) Hydraulic control valve disconnected

30

Signal ground open circuit

31

Chassis harness disconnected

32

Draft load potentiometer shorted to +12 Volts

33

Draft control potentiometer open circuit or short to ground

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49

Wheel speed sensor open or short circuit

53

Microprocessor 5 Volt reference shorted to + 12 Volts

54

Microprocessor 5 Volt reference shorted to ground

57

EDC microprocessor failure

59

Microprocessor reference voltage open circuit

63

EDC hydraulic valve lower solenoid open circuit

64

EDC hydraulic valve raise solenoid open circuit

65

EDC hydraulic valve lower solenoid short circuit

66

EDC hydraulic valve raise solenoid short circuit

67

EDC hydraulic valve supply voltage too low

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ERROR CODE 2 -- POOR OR NO SIGNAL FROM TRACTOR PERFORMANCE MONITOR RADAR Possible failure modes: 1. Faulty fuse 9 1. Faulty connector 2. Faulty tractor performance monitor radar 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the tractor performance monitor radar connector C068.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace connector as required.

B. If the connector is okay, continue to step 2.

2. Check the instrument panel displays correct tractor speed.

A. Drive the tractor at greater than 16 kmh (10 mph). If the tractor speed is displayed correctly, continue to step 6. If no tractor speed is displayed, disconnect connector C068. Turn the keystart ON. Check between connector C068 pin 3 (R) and C068 pin 1 (B). If the voltage indicated is approximately +12 Volts, continue to step 6.

B. If the voltage indicated is not approximately +12 Volts, continue to step 3.

3. Check fuse 9.

A. If a fault is indicated with fuse 9, replace the fuse and re--check. If the fuse keeps on blowing, continue to step 4.

B. If the fuse is okay, continue to step 5.

4. Check for a short circuit.

A. Check between connector C068 pin 3 (R) and ground. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the radar assembly.

5. Check for an open circuit.

A. Turn the keystart OFF. Check between connector: C068 pin 3 (R) and fuse 9 holder C068 pin 1 (B) and ground.

If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the radar assembly.

6. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) C127 and the instrument cluster connectors C079, C080 and C081. Disconnect the ground speed connector C237 next to the diagnostic plug.

Check between connector C127 pin 15 (G) and C068 pin 2 (G). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 7.

7. Check for a short to ground.

A. Check between connector C068 pin 2 (G) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the radar assembly.

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ERROR CODE 3 -- RADAR (GROUND SPEED) GREATER THAN WHEEL SPEED ERROR CODE 4 -- WHEEL SPEED GREATER THAN MAXIMUM SPEED OF TRACTOR ERROR CODE 5 -- WHEEL SPEED ZERO WHEN RADAR IS INDICATING GROUND SPEED Possible failure modes: 1. Faulty connector 2. Incorrect tractor performance monitor radar alignment 3. Faulty output speed sensor 4. Faulty tractor performance radar 5. Faulty harness 6. Faulty speed pickup disc Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for error code 3 or 5 being displayed.

A. If error code 3 or 5 is displayed, continue to test for error code 2.

B. If error code 3 is displayed, continue to step 2. If error code 4 or 5 is still displayed continue to step 3.

2. Check the position of the radar.

A. If the radar is pointing at the tractor wheel or excessively vibrating, point the radar at the ground and tighten the fixings.

B. If the radar mounting and position is okay, remove and replace the output speed sensor.

3. Check the output speed sensor.

A. If the output speed sensor is loose in the transmission housing or damaged, re--tighten or remove and replace the output speed sensor as required.

B. If error code 4 is still displayed, continue to step 4. If error code 5 is still displayed, continue to step 5.

4. Check the speed pickup disc.

A. Tractors with ground speed PTO. Remove the speed sensor and check for damaged (distorted or bent) speed pickup disc inside the transmission. If any damage is indicated, disassemble the transmission and replace the disc.

B. If the speed pickup disc is okay, remove and replace the output speed sensor.

5. Check for additional error codes.

A. If error code 49 is displayed, continue to test for error code 49.

B. If error code 49 is not displayed, remove and replace the output speed sensor.

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ERROR CODE 6 -- SLIP CONTROL VOLTAGE LOW (SHORT OR OPEN CIRCUIT) ERROR CODE 7 -- SLIP CONTROL VOLTAGE HIGH (DAMAGED POTENTIOMETER OR SHORT TO +12 VOLTS) Possible failure modes: 1. Faulty slip control potentiometer 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the slip control potentiometer in H9 Channel 33.

A. Turn the slip control control knob fully clockwise and then fully counter clockwise. If the values displayed are not between 84 to 14, continue to step 2.

B. If the values displayed are okay, while still in H9 Channel 33 wiggle the harness and the connectors to check for an intermittent circuit. Channel 33 values will change if an intermittent circuit is indicated, repair or replace as required.

2. Check the slip control potentiometer.

A. Remove the EDC control panel and disconnect the connectors C120 and C121. While turning the slip control knob fully clockwise and then fully counter clockwise, measure the resistance between the component side of connector: C121 pin 1 (TQ/R) and C120 pin 1 (LN) C121 pin 1 (TQ/R) and C120 pin 4 (B) If the resistances indicated are not between 80 -- 340 Ohms, replace the control panel.

B. If the EDC control panel is okay, continue to step 3.

3. Check for +5 Volts.

A. Turn the keystart ON. Measure the voltage between connector C120 pin 1 (LN) and C120 pin 4 (B). If the voltage indicated is approximately +5 Volts, continue to step 4.

B. If the voltage indicated is not approximately +5 Volts, continue to step 7.

4. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C128. Check between connector C121 pin 1 (TQ/R) and C128 pin 16 (TQ/R). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 5.

5. Check for a short circuit.

A. Check between connector: C121 pin 1 (TQ/R) and C120 pin 4 (B) C121 pin 1 (TQ/R) and C120 pin 1 (LN) If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between connector C121 pin 1 (TQ/R) and ground. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

7. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C120 pin 1 (LN) and C127 pin 5 (TN) C120 pin 4 (B) and C127 pin 1 (B)

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If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 8.

8. Check for a short circuit or short to ground.

A. Check between connector: C120 pin 1 (LN) and C120 pin 4 (B) C120 pin 1 (LN) and ground C120 pin 4 (B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 8 -- RAISE/WORK SWITCH FAILURE Possible failure modes: 1. Faulty raise/work switch 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the raise/work switch in H5.

A. The display will show d0. Move the fast raise/work switch between the raise and work positions several times, and check the display. If the display does not change, continue to step 8.

B. If the display changes between d0, d3 and d4 the switch and the circuit is okay. If the display shows d3 and d0, continue to step 2.

C. If the display shows d4 and d0, continue to step 5.

2. Check the raise/work switch.

A. Disconnect the raise/work switch connector C240. With the switch in the raise position, check between the component side of connector C240 pin F (R/LG/B) and C240 pin E (TQ/W). If an open circuit is indicated, replace the raise/work switch.

B. If the raise/work switch is okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect the general control module (GCM) connector C128. Check between connector C240 pin E (TQ/W) and C128 pin 26 (TQ/W). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check between connector: C240 pin E (TQ/W) and C240 pin F (R/LG/B) C240 pin E (TQ/W) and ground C240 pin F (R/LG/B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

5. Check the raise/work switch.

A. With the switch in the work position, check between the component side of connector C240 pin G (TQ/P) and C240 pin F (R/LG/B). If an open circuit is indicated, replace the raise/work switch.

B. If the switch is okay, continue to step 6.

6. Check for an open circuit.

A. Disconnect the general control module (GCM) connector C128. Check between connector C240 pin G (TQ/P) and C128 pin 29 (TQ/P). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 7.

7. Check for a short circuit or short to ground.

A. Check between connector: C240 pin F (R/LG/B) and C240 pin G (TQ/P) C240 pin F (R/LG/B) and ground C240 pin G (TQ/P) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

8. Check for an open circuit.

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A. Turn the keystart OFF. Disconnect the raise/work switch connector C240. Check between connector C240 pin F (R/LG/B) and fuse 13. If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 9.

9. Check the raise/work switch.

A. Check between the component side of connector: C240 pin F (R/LG/B) and C240 pin E (TQ/W) with the raise/work switch held in raise position C240 pin F (R/LG/B) and C240 pin G (TQ/P) with the raise/work switch held in lower position If an open circuit is indicated in either of the tests, remove and replace the switch.

B. If the switch is okay, continue to step 10.

10. Check for a short circuit.

A. Disconnect the general control module (GCM) connector C128. Check between connector C128 pin 29 (TQ/P) and C128 pin 26 (TQ/W). If a short circuit is indicated, repair the short circuit between connector C128 pin 29 and pin 26 to the raise/work switch connector C240 or replace the harness as required.

B. If a short circuit is not indicated, continue to step 11.

11. Check for an open circuit.

A. Check between connector C240 pin E (TQ/W) and C128 pin 26 TQ/W). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 12.

12. Check for an open circuit.

A. Check between connector C240 pin G (TQ/P) and C128 pin 29 (TQ/P). If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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ERROR CODE 9 -- BOTH EXTERNAL LIFT/LOWER FENDER SWITCHES ARE BEING OPERATED SIMULTANEOUSLY Possible failure modes: 1. External lift/lower fender switches sticking 2. Fuse 9 3. Faulty external lift/lower fender switch 4. Faulty harness 5. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the fender switches are not sticking in the raise or lower position.

A. If the switches are sticking, clean, repair or replace as required.

B. If the fender switches are not sticking, continue to step 2.

2. Check fuse 9.

A. If a fault is indicated with fuse 9, replace the fuse and re--check.

B. If the fuse is okay, continue to step 2.

3. Check the switch in H5.

A. Press and hold each fender switch in turn in the raise position. If the display changes from d0 to d2, continue to step 8.

B. If the display does not change, continue to step 4.

4. Check for +12 Volts.

A. In diagnostic mode H5, disconnect the fender switch connectors C134 or C135 in turn to indicate which side does not change the display. Measure the voltage between connector: C134 pin 3 (G) and ground C135 pin 3 (G) and ground If +12 Volts is not indicated, repair the open circuit between C134 pin 3 (G) or C135 pin 3 (G) and fuse 9 or replace the harness as required.

B. If +12 Volts is indicated, continue to step 5.

5. Check the external lift/lower fender switches.

A. Press and hold each switch in the raise position. Check for an open circuit between the component side of connector: C134 pin 3 (G) and C134 pin 1 (K/W) C135 pin 3 (G) and C135 pin 1 (K/W) If an open circuit is indicated, remove and replace the switch.

B. If the switch is okay, continue to step 6.

6. Check for an open circuit.

A. Disconnect the general control module (GCM) connector C128. Check between connector: C128 pin 21 (K/W) and C134 pin 1 (K/W) C128 pin 21 (K/W) and C135 pin 1 (K/W) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated,continue to step 7.

7. Check for a short circuit.

A. Check between connector: C134 pin 3 (G) and C134 pin 1 (K/W) C135 pin 3 (G) and C135 pin 1 (K/W) If a short circuit is indicated, repair or replace the harness as required.

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B. If the harness is okay, remove and replace the general control module (GCM).

8. Check the external lift/lower fender switch in H5.

A. Press and hold each lift/lower fender switch in turn in the lower position. If the display changes from d0 to d1 the lift/lower switch and circuit is okay.

B. If the display does not change, continue to step 9.

9. Check the external lift/lower fender switch.

A. Disconnect the fender switch which does not change the display. Press and hold the switch in the lower position and check between the component side of connector: C134 pin 3 (G) and C134 pin 7 (K/G) C135 pin 3 (G) and C135 pin 7 (K/G) If an open circuit is indicated, remove and replace the switch.

B. If the switch is okay, continue to step 10.

10. Check for an open circuit.

A. Disconnect the general control module (GCM) connector C128. Check between connector: C332 pin 28 (K/G) and C134 pin 7 (K/G) C332 pin 28 (K/G) and C135 pin 7 (K/G) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 11.

11. Check for a short circuit.

A. Check between connector.

C134 pin 3 (G) and C134 pin 7 (K/G) C135 pin 3 (G) and C135 pin 7 (K/G) If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 10 -ERROR CODE 11 --

HEIGHT LIMIT CONTROL VOLTAGE LOW (SHORT OR OPEN CIRCUIT) HEIGHT LIMIT CONTROL VOLTAGE HIGH (DAMAGED POTENTIOMETER OR SHORT TO +12 VOLTS)

Possible failure modes: 1. Faulty height limit control potentiometer 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the height limit control potentiometer in H9 Channel 31.

A. Turn the height limit control knob fully clockwise and then fully counter clockwise. If the values displayed are not between 84 to 14, continue to step 2.

B. If the values displayed are okay, while still in H9 Channel 31, wiggle the harness and the connectors to check for an intermittent circuit. Channel 31 values will change if an intermittent circuit is detected, repair or replace as required.

2. Check the height limit control potentiometer.

A. Remove the EDC control panel and disconnect the connectors C120 and C121. While turning the height control knob fully clockwise and then fully counter clockwise, measure the resistance between the component side of connector: C120 pin 7 (K/O) and C120 pin 1 (LN) C120 pin 7 (K/O) and C120 pin 4 (B) If the resistances indicated are not between 90 -- 360 Ohms (with slip control) and 170 -- 520 Ohms (without slip control), replace the control panel.

B. If the EDC control panel is okay, continue to step 3.

3. Check for +5 Volts.

A. Turn the keystart ON. Measure the voltage between connector C120 pin 1 (LN) and C120 pin 4 (B). If the voltage indicated is approximately +5 Volts, continue to step 4.

B. If the voltage indicated is not approximately +5 Volts, continue to step 7.

4. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C128. Check between connector C120 pin 7 (K/O) and C128 pin 31 (K/O). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 5.

5. Check for a short circuit.

A. Check between connector: C120 pin 7 (K/O) and C120 pin 4 (B) C120 pin 7 (K/O) and C120 pin 1 (LN) If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between connector C120 pin 7 (K/O) and ground. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

7. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C120 pin 1 (LN) and C127 pin 5 (TN)

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C120 pin 4 (B) and C127 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 8.

8. Check for a short circuit.

A. Check between connector: C120 pin 1 (LN) and C120 pin 4 (B) C120 pin 1 (LN) and ground C120 pin 4 (B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 12 -ERROR CODE 13 --

DROP RATE CONTROL VOLTAGE LOW (SHORT OR OPEN CIRCUIT) DROP RATE CONTROL VOLTAGE HIGH (DAMAGED POTENTIOMETER OR SHORT TO +12 VOLTS)

Possible failure modes: 1. Faulty drop rate control potentiometer 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the drop rate control potentiometer in H9 Channel 30.

A. Turn the drop rate control knob fully clockwise and then fully counter clockwise. If the values displayed are not between 84 to 14, continue to step 2.

B. If the values displayed are okay, while still in H9 Channel 30, wiggle the harness and the connectors to check for an intermittent circuit. Channel 30 values will change if an intermittent circuit is detected. Repair or replace as required.

2. Check the drop rate control potentiometer.

A. Remove the EDC control panel and disconnect the connectors C120 and C121. While turning the drop rate control knob fully clockwise and then fully counter clockwise, measure the resistance between the component side of connector: C120 pin 2 (LN/Y) and C120 pin 1 (LN) C120 pin 2 (LN/Y) and C120 pin 4 (B) If the resistances indicated are not between 90 -- 360 Ohms (with slip control) and 170 -- 520 Ohms (without slip control), replace the EDC control panel.

B. If the EDC control panel is okay, continue to step 3.

3. Check for +5 Volts.

A. Turn the keystart ON. Measure the voltage between connector C120 pin 1 (LN) and C120 pin 4 (B). If the voltage indicated is approximately +5 Volts, continue to step 4.

B. If the voltage indicated is not approximately +5 Volts, continue to step 7.

4. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C128. Check between connector C120 pin 2 (LN/Y) and C128 pin 9 (LN/Y). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 5.

5. Check for a short circuit.

A. Check between connector: C120 pin 2 (LN/Y) and C120 pin 4 (B) C120 pin 1 (LN) and C120 pin 2 (LN/Y) If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between connector C120 pin 2 (LN/Y) and ground. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

7. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C120 pin 1 (LN) and C127 pin 5 (TN)

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C120 pin 4 (B) and C127 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 8.

8. Check for a short circuit.

A. Check between connector: C120 pin 1 (LN) and C120 pin 4 (B) C120 pin 1 (LN) and ground C120 pin 4 (B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 14 -ERROR CODE 15 --

OPEN CIRCUIT CONNECTION TO LOAD SENSING PIN, SHORT CIRCUIT TO GROUND OR FAILED LOAD SENSING PIN LOAD SENSING PIN SHORT CIRCUIT TO +12 VOLTS, FAILED OR CORRODED LOAD SENSING PIN

Possible failure modes: 1. Faulty connector 2. Faulty load sensing pin 3. Faulty harness 4. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the right hand side load sensing pin connecter C048.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the load sensing pin in H9 channel 34.

A. Where possible, remove any implements to ensure the load sensing pins are not under any draft loading.

If the value displayed is approximately 48, check for an intermittent circuit to the load sensing pin, repair or replace the harness as required. If the error re--occurs and no intermittent circuit is indicated, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the value displayed in H9 channel 34 is not approximately 48, continue to step 3.

3. Replace the load sensing pin.

A. Turn the keystart OFF. Remove and replace the load sensing pin. (If a new pin is not available interchange the left and right hand load sensing pins). If the error is cleared, remove and replace the faulty sensing pin.

B. If the error re--occurs, continue to step 4.

4. Check for an open circuit.

A. Disconnect the general control module (GCM) connectors C127 and C128. Disconnect both load sensing pin connectors C048 and C047. Check between connector: C048 pin 1 (B) and C127 pin 1 (B) C048 pin 2 (TN/L) and C128 pin 11 (TN/L) C048 pin 3 (K) and C127 pin 25 (K) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 5.

5. Check for a short to ground.

A. Check between connector: C048 pin 2 (TN/L) and ground C048 pin 3 (K) and ground If a short to ground is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 6.

6. Check for a short to +12 Volts.

A. Turn the keystart ON. Check between connector: C048 pin 1 (B) and ground C048 pin 2 (TN/L) and ground C048 pin 3 (K) and ground If a voltage is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 ERROR CODE 16 -ERROR CODE 17 --

1571

OPEN CIRCUIT CONNECTION TO LOAD SENSING PIN, SHORT CIRCUIT TO GROUND OR FAILED LOAD SENSING PIN LOAD SENSING PIN SHORT CIRCUIT TO +12 VOLTS, FAILED OR CORRODED LOAD SENSING PIN

Possible failure modes: 1. Faulty connector 2. Faulty load sensing pin 3. Faulty harness 4. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the left hand side load sensing pin connecter C047.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the load sensing pin in H9 channel 35.

A. Where possible, remove any implements to ensure the load sensing pins are not under any draft loading.

If the value displayed is approximately 48, check for an intermittent circuit to the load sensing pin, repair or replace the harness as required. If the error re--occurs and no intermittent circuit is indicated, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the value displayed in H9 channel 35 is not approximately 48, continue to step 3.

3. Replace the load sensing pin.

A. Turn the keystart OFF. Remove and replace the load sensing pin. (If a new pin is not available interchange the left and right hand load sensing pins). If the error is cleared, remove and replace the faulty sensing pin.

B. If the error re--occurs, continue to step 4.

4. Check for an open circuit.

A. Disconnect the general control module (GCM) connectors C127 and C128. Disconnect both load sensing pin connectors C048 and C047. Check between connector: C047 pin 1 (B) and C127 pin 1 (B) C047 pin 2 (TLN/LTG) and C128 pin 33 (TLN/LTG) C047 pin 3 (K) and C127 pin 25 (K) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 5.

5. Check for a short to ground.

A. Check between connector: C047 pin 2 (TLN/LTG) and ground C047 pin 3 (K) and ground If a short to ground is indicated, repair or replace the harness as required.

B. If a short to ground is not indicated, continue to step 6.

6. Check for a short to +12 Volts.

A. Turn the keystart ON. Check between connector: C047 pin 1 (B) and ground C047 pin 2 (TLN/TG) and ground C047 pin 3 (K) and ground If a voltage is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 18 -- BOTH LOAD SENSING PINS DISCONNECTED Possible failure modes: 1. Faulty connector 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check both load sensing pin connectors C048 and C047.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Visually check the harness to both pins for any damage.

A. If the harness is damaged, repair or replace as required.

B. If the harness is okay, continue to step 3 3. Check for an open circuit.

A. Disconnect the general control module (GCM) connectors C127 and C128. Disconnect both load sensing pin connectors C048 and C047. Check between connector: C048 pin 1 (B) and C127 pin 1 (B) C048 pin 2 (TN/L) and C128 pin 11 (TN/L) C048 pin 3 (K) and C127 pin 25 (K) C047 pin 1 (B) and C127 pin 1 (B) C047 pin 2 (TLN/LTG) and C128 pin 33 (TLN/LTG) C047 pin 3 (K) and C127 pin 25 (K) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 ERROR CODE 19 -ERROR CODE 20 --

1577

PIN REFERENCE VOLTAGE LESS THAN 8 VOLTS (SHORT OR OPEN CIRCUIT) PIN REFERENCE VOLTAGE GREATER THAN 8 VOLTS (SHORT TO +12 VOLTS)

Possible failure modes: 1. Faulty load sensing pin 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the 8 Volts sensor supply in H9 channel 13 (Range Command) channel 9 (Dual Command).

A. If the value displayed is approximately 80, check for an intermittent circuit to the load sensing pin, repair or replace the harness as required. If the error re--occurs and no intermittent circuit is indicated, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the value displayed is not approximately 80, continue to step 2.

2. Check for + 8 Volts.

A. Disconnect both load sensing pin connectors C048 and C047. Turn the keystart ON. Measure the voltage between connector: C048 pin 3 (K) and C048 pin 1 (B) C047 pin 3 (K) and C047 pin 1 (B) If the voltage indicated is approximately 8 Volts, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the voltage indicated is not approximately 8 Volts, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C128. Check between connector: C047 pin 2 (TLN/LTG) and C128 pin 33 (TLN/LTG) C048 pin 2 (TN/L) and C128 pin 11 (TN/L) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Replace the load sensing pin(s).

A. Turn the keystart OFF. Remove and replace the load sensing pin(s).

B. Turn the keystart ON. If the error re--occurs, refit the old load sensing pins and continue to step 5.

5. Check for a short to ground.

A. Turn the keystart OFF. Disconnect connectors C127, C047 and C048. Check between connector: C048 pin 3 (K) and ground C047 pin 3 (K) and ground If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 6.

6. Check for a short to +12 Volts.

A. With the microprocessor connectors still disconnected, turn the keystart ON. Check between connector: C047 pin 3 (K) and ground C047 pin 3 (K) and ground If a voltage is indicated, repair the short to +12 Volts or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 21 -ERROR CODE 22 --

DRAFT SENSITIVITY CONTROL VOLTAGE LOW (SHORT OR OPEN CIRCUIT) DRAFT SENSITIVITY CONTROL VOLTAGE HIGH (DAMAGED POTENTIOMETER OR SHORT TO +12 VOLTS)

Possible failure modes: 1. Faulty draft sensitivity control potentiometer 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the draft sensitivity control potentiometer in H9 Channel 32.

A. Turn the draft sensitivity control knob fully clockwise and then fully counter clockwise. If the values displayed are not between 84 to 14, continue to step 2.

B. If the values displayed are okay, while still in H9 Channel 32, wiggle the harness and the connectors to check for an intermittent circuit. Channel 32 values will change if an intermittent circuit is detected, repair or replace as required.

2. Check the draft sensitivity control potentiometer.

A. Remove the EDC control panel and disconnect the connectors C120 and C121. While turning the draft sensitivity control knob fully clockwise and then fully counter clockwise, measure the resistance between the component side of connector: C120 pin 3 (LN/W) and C120 pin 1 (LN) C120 pin 3 (LN/W) and C120 pin 4 (B) If the resistances indicated are not between 90 -- 360 Ohms (with slip control) and 170 -- 520 Ohms (without slip control), replace the control panel.

B. If the EDC control panel is okay, continue to step 3.

3. Check for +5 Volts.

A. Turn the keystart ON. Measure the voltage between connector C120 pin 1 (LN) and C120 pin 4 (B). If the voltage is approximately +5 Volts, continue to step 4.

B. If the voltage indicated is not approximately +5 Volts, continue to step 7.

4. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C128. Check between connector C120 pin 3 (LN/W) and C128 pin 10 (LN/W). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 5.

5. Check for a short circuit.

A. Check between connector: C120 pin 3 (LN/W) and C120 pin 4 (B) C120 pin 3 (LN) and C120 pin 1 (LN) If a short circuit is indicated, repair or replace the harness as required.

If a short circuit is not indicated, continue to step 6.

6. Check for a short to ground.

A. Check between C120 pin 3 (LN/W) and ground. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

7. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector:

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C120 pin 1 (L/N) and C127 pin 5 (L/N) C120 pin 4 (B) and C127 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 8.

8. Check for a short circuit.

A. Check between connector: C120 pin 1 (LN) and C120 pin 4 (B) C120 pin 1 (LN) and ground C120 pin 4 (B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 23 -- CONTROL PANEL DISCONNECTED Possible failure modes: 1. Faulty connector 2. Faulty EDC control panel 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the EDC control panel connecters C120 and C121.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 2.

2. Visually check the harness to the control panel for any damage.

A. If the harness is damaged, repair or replace as required.

B. If the harness is not damaged, continue to step 3.

3. Check all harness connectors are connected.

A. If any connectors are disconnected, connect the connectors as required.

B. If the harness is okay, remove and replace the EDC control panel.

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ERROR CODE 24 -- PERFORM HYDRAULIC LIFT CALIBRATION Calibration of Lift Arm Potentiometers and Lift Control Pod This procedure is required whenever:-The lift arm position sensing potentiometer, lift control pod or EDC valve have been replaced. or The microprocessor has been replaced or its memory has been reset using Diagnostic Menu H8.

TIA35183

120 1. Lower lift arms and disconnect vertical rods from hanger on automatic pick--up hitch (where fitted).

This will allow the lift arms to raise to their maximum position.

2. Position raise/work switch to work position.

121 3. Turn all the EDC operator controls fully clockwise.

NOTE: If the height limit control has not been turned fully clockwise to the maximum height position, the Error Code HL will be displayed.

122 4. Start engine and set speed to 1100 rpm.

5. Move lift control lever forward and fully lower the lift.

123

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6. Fully raise the hydraulic lift and ensure pick--up hitch rods do not catch or jam on lift linkage.

When the lift arms reach the fully raised position the pump will momentarily reach high pressure standby.

124 7. Check that the lift arm position display increases to 99.

125 8. Reconnect and adjust the rod on the automatic pick--up hitch as follows:-Move the lift control lever forward sufficiently to to allow the lift arms to lower slightly.

Reconnect the pick--up hitch lift rods.

Adjust the length of the lift rods so that when the hydraulic lift is fully raised using the external fender switches, the lift rods are slightly loose.

9. Check that the automatic pick--up hitch operates correctly.

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CALIBRATION OF THE EDC VALVE This calibration is required if either the EDC valve or the microprocessor has been replaced or its memory has been reset using Diagnostic Menu H8.

Perform the calibration with warm hydraulic oil and a suitable implement or weight mounted on the hydraulic lift. The weight of the implement should be sufficient to overcome any friction in the hydraulic lift assembly and enable the lift arms to lower without binding.

1. Enter H1 mode, using the diagnostic tool.

Refer to Section 55 or

127

2. Press and hold fast raise lower switch in lowering position against the spring and at the same time start the engine.

128 3. The display will change to CA or CAL depending on instrument

129 Transmission oil temperature will be displayed in ‘Display of Gears’

130

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4. Capture the hitch then fully lower and fully raise the hydraulic lift.

5. Leave the hitch in the fully raised position while it does a series of three very small raise/lower corrections.

TIA35205

131 Each time the hitch makes a correction the display will progressively change from 0 to 1 to 2 and then En or End depending on type of instrument cluster installed.

132 6. Key off the tractor to store the calibrations.

133 NOTE: Calibration can be performed several times to provide a better average of the valve thresholds.

The thresholds (the current required to start the EDC valve raise and lower solenoids to operate) may be viewed in mode H3 and are displayed in amps x 100, i.e. 0.530 amps will be displayed as 53. The raise threshold is displayed first followed by the lower.

TIA35205

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Valve Calibration Review (H3 Diagnostic Routine) (Analogue Electronic Instrument Cluster Shown) 1. Enter the diagnostic routine and depress the button on the diagnostic switch ‘three times’ until the display on the instrument panel changes to ‘H3’.

135 2. After approximately 4 seconds the display will change to show the EDC valve solenoid raise and lower thresholds.

The threshold values will differ for each tractor with a nominal value of approximately 50.

136

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ERROR CODE 25 -ERROR CODE 26 --

POSITION LEVER POTENTIOMETER CONTROL VOLTAGE LOW (SHORT OR OPEN CIRCUIT) POSITION LEVER POTENTIOMETER CONTROL VOLTAGE HIGH (DAMAGED POTENTIOMETER OR SHORT TO +12 VOLTS)

Possible failure modes: 1. Faulty position lever potentiometer 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the position lever potentiometer for any damage.

A. If the potentiometer is damaged, remove and replace the potentiometer.

B. If the potentiometer is okay, continue to step 2.

2. Check the position lever potentiometer in H9 Channel 29.

A. Fully lower and then raise the position lever. If the values displayed are not between 9 to 83, continue to step 3.

B. If the values displayed are okay, while still in H9 Channel 29, wiggle the harness and the connectors to check for an intermittent circuit. Channel 29 values will change if an intermittent circuit is detected, repair or replace as required.

3. Check the position lever potentiometer.

A. Disconnect the EDC control unit connector C240. While fully lowering and then raising the position lever, measure the resistance between the component side of connector: C240 pin A (LN/B) and C240 pin D (B) C240 pin A (LN/B) and C240 pin C (LN) If the values indicated do not range between 100 -- 600 Ohms, remove and replace the EDC control unit.

B. If the EDC control unit is okay, continue to step 4.

4. Check for +5 Volts.

A. Turn the keystart ON. Measure the voltage between connector C240 pin D (B) and C240 pin C (LN). If the voltage indicated is approximately +5 Volts, continue to step 5.

B. If the voltage indicated is not approximately +5 Volts, continue to step 8.

5. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C128. Check between connector C240 pin A (LN/B) and C128 pin 30 (LN/B). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 6.

6. Check for a short circuit.

A. Check between connector: C240 pin A (N/B) and C240 pin D (B) C240 pin A (LN/B) and C240 pin C (LN) If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 7.

7. Check for a short to ground.

A. Check between connector C240 pin A (LN/B) and ground, If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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8. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C240 pin D (B) and C127 pin 1 (B) C240 pin C (LN) and C127 pin 5 (TN) If an open circuit is indicated, repair or replace the harness as required.

B If an open circuit is not indicated, continue to step 9.

9. Check for a short circuit or short to ground.

A. Check between connector: C240 pin C (LN) and C240 pin D (B) C240 pin C (LN) and ground C240 pin D (B) and ground If a short circuit or a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 27 -ERROR CODE 28 --

LIFT ARM POSITION SENSING CONTROL VOLTAGE LOW (SHORT OR OPEN CIRCUIT) LIFT ARM POSITION SENSING CONTROL VOLTAGE HIGH (DAMAGED POTENTIOMETER OR SHORT TO +12 VOLTS)

Possible failure modes: 1. Faulty lift arm position sensing control potentiometer 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the lift arm position sensing potentiometer and it’s linkage for any damage.

A. If the potentiometer or linkage is damaged, repair or replace as required.

B. If the potentiometer and the linkage is okay, continue to step 2.

2. Check the lift arm position sensing potentiometer in H9 Channel 28.

A. Fully lower and then raise the hydraulic lift arms. (Ensure the pick up hitch lift rods do not restrict the maximum movement of the arms). If the values displayed are not between 79 to 15, continue to step 3.

B. If the values displayed are okay, while still in H9 Channel 28, wiggle the harness and the connectors to check for an intermittent circuit. Channel 28 values will change if an intermittent circuit is detected, repair or replace as required.

3. Check the lift arm position sensing potentiometer.

A. Disconnect the potentiometer linkage connector C052 and remove the potentiometer. While turning the potentiometer, measure the resistance between the component side of connector: C052 pin 2 (B) and C052 pin 1 (LN) C052 pin 2 (B) and C052 pin 3 (B) If the resistances indicated do not range between approximately 1.0 -- 4.0K Ohms, replace the lift arm position sensing potentiometer.

B. If the values are okay, refit the potentiometer and continue to step 4.

4. Check for +5 Volts.

A. Turn the keystart ON. Measure the voltage between connector C052 pin 1 (LN) and C052 pin 3 (B). If the voltage indicated is approximately +5 Volts, continue to step 5.

B. If the voltage indicated is not approximately +5 Volts, continue to step 8.

5. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C128. Check between connector C052 pin 2 (B) and C128 pin 8 (B). If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 6.

6. Check for a short circuit.

A. Check between connector: C052 pin 2 (B) and C052 pin 3 (B) C052 pin 1 (LN) and C052 pin 3 (B) If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 7.

7. Check for a short to ground.

A. Check between connector C052 pin 2 (B) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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8. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C052 pin 1 (LN) and C127 pin 5 (TN).

C052 pin 3 (B) and C127 pin 1 (B).

If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 9.

9. Check for a short circuit or short to ground.

A. Check for a short circuit between: C052 pin 1 (LN) and C052 pin 3 (B) C052 pin 1 (B) and ground C052 pin 3 (B) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 29 -- HYDRAULIC CONTROL VALVE DISCONNECTED Possible failure modes: 1. Faulty connector 2. Faulty hydraulic control valve solenoid 3. Faulty harness 4. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the hydraulic control valve solenoid connectors C217 and C218.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as necessary.

B. If the connectors are okay, continue to step 2.

2. Visibly check the harness to the for any damage.

A. Check the harness from the general control module (GCM) to connector C217 and C218 for damage. If damage to the harness is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 30 -- SIGNAL GROUND OPEN CIRCUIT Possible failure modes: 1. Faulty connector 2. Faulty EDC control panel 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for an open circuit.

A. Disconnect the EDC control panel connectors C120 and C121. Disconnect the general control module (GCM) connector C127. Check between connector C120 pin 4 (B) and C127 pin 1 (B), if an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 2.

2. Check for an open circuit.

A. Check between the component side of connector C120 pin 1 (LN) and C120 pin 4 (B), If an open circuit is indicated, repair or replace the harness as required B. If an open circuit is not indicated, continue to step 3.

3. Check the EDC control panel.

A. Measure the resistance between the component side of connector C120 pin 1 (LN) and C120 pin 4 (B).

If the resistance indicated is not between approximately 300 -- 500 Ohms, remove and replace the EDC control panel.

B. If the EDC control panel is okay, check the general control module (GCM) connector C127. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1603

ERROR CODE 31 -- CHASSIS HARNESS DISCONNECTED Possible failure modes: 1. Faulty connector 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the chassis harness connectors C019 and C020.

A. Ensure the chassis harness connector is connected, not damaged, the pins are in the correct position and the fit is tight. Repair or replace as required.

B. If the chassis harness connector is okay, continue to step 2.

2. Visually check the chassis harness for any damage.

A. If the harness is damaged, repair or replace as required.

B. If harness okay, continue to step 3.

3. Check for other error codes.

A. Continue to test for error code 18, but do not replace the general control module (GCM) at this stage.

B. If error code 31 is still indicated, continue to test for error codes 27 and 28.

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ERROR CODE 32 -- DRAFT LOAD POTENTIOMETER SHORTED TO +12V Possible failure modes: 1. Faulty harness 2. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for +5 Volts.

A. Disconnect the EDC control unit connector C240. Turn the keystart ON. Measure the voltage between connector C240 pin D (B) and C240 pin C (LN). If the voltage is approximately +5 Volts, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the voltage is greater than +5 Volts, continue to step 2.

2. Check for a short to +12 Volts.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Turn the keystart ON. Check between connector: C240 pin D (B) and ground C240 pin C (LN) and ground If a short to +12 Volts is indicated repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 ERROR CODE 33 --

1607

DRAFT CONTROL POTENTIOMETER OPEN CIRCUIT OR SHORT TO GROUND

Possible failure modes: 1. Faulty EDC control unit 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for an open circuit.

A. Disconnect the EDC control unit connector C240. Disconnect the general control module (GCM) connectors C127 and C128. Check between connector: C240 pin B (B/U) and C128 pin 32 (B/U) C240 pin C (LN) and C127 pin 5 (TN) C240 pin D (B) and C127 pin 1 (B) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness okay, continue to step 2.

2. Check for a short circuit or short to ground.

A. Check between connector: C240 pin C (LN) and C240 pin D (B) C240 pin B and ground C240 pin C and ground C240 pin D and ground If a short circuit or a short to ground is indicated, repair or replace harness as required.

B. If the harness is okay, remove and replace the EDC control unit. If the error is still indicated, refit the old EDC control unit and download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE 49 -- WHEEL SPEED SENSOR OPEN OR SHORT CIRCUIT Possible failure modes: 1. Faulty harness 2. Faulty output speed sensor 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for transmission error F49 or F50 being displayed.

A. If F49 or F50 is displayed, continue to these tests.

B. If only error code 49 is displayed, continue to step 2.

2. Check the wheel speed sensor in H9 Channel 19 (Range Command) Channel 20 (Dual Command).

A. If the value displayed is approximately 64 (Dual Command) or 49 (Range Command), check for an intermittent open or short circuit. If an intermittent open or short circuit is indicated, repair or replace the harness as required.

B. If the values displayed are okay, continue to step 3.

3. Check for an open circuit.

A. Disconnect the wheel speed sensor connector C046. Disconnect the general control module (GCM) connector C127. Check between connector: C046 pin 1 (TQ) and C127 pin 6 (TQ) C046 pin 2 and C127 pin 1 If an open circuit is indicated, repair or replace as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit or short to ground.

A. Check for a short circuit between connector: C046 pin 1 (TQ) and C046 pin 2 (TQ) C046 pin 1 (TQ) and ground If a short circuit or a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 5.

5. Check the wheel speed sensor.

A. Disconnect connector C046. Measure the resistance between the component side of connector C046 pin 1 (TQ) and C046 pin 2. If the resistance indicated is not approximately 0.80K Ohms -- 1.2K Ohms, remove and replace the wheel speed sensor.

B. If the wheel speed sensor is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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1613

ERROR CODE 53 -- MICROPROCESSOR 5 VOLT REFERENCE SHORTED TO +12 VOLTS Possible failure modes: 1. Faulty harness 2. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the +5 Volt sensor supply reference in H9 Channel 12 (Range Command) Channel 5 (Dual Command).

A. If the value displayed is greater than 49 and error code 53 is displayed, continue to step 2.

B. If the value displayed is less than 49 and error code 53 is not displayed, continue to step 4.

2. Check for +5 Volts.

A. Disconnect the EDC control panel connectors C120 and C121. Turn the keystart ON. Measure the voltage between connector C120 pin 1 (LN) and C120 pin 4 (B). If the voltage indicated is less than +5 Volts, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the voltage indicated is greater than +5 Volts, continue to step 3.

3. Check for a short to +12 Volts.

A. Check for a short circuit to +12 Volts from the battery or fuse panel. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

4. Check for an intermittent short to +12 Volts.

A. Check for an intermittent short circuit to +12 Volts from the battery or fuse panel. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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ERROR CODE 54 -- MICROPROCESSOR 5 VOLT REFERENCE SHORTED TO GROUND Possible failure modes: 1. Faulty harness 2. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the +5 Volt sensor supply reference in H9 Channel 12 (Range Command) Channel 5 (Dual Command).

A. If the value displayed is less than 49 and error code 54 is displayed, continue to step 2.

B. If the value displayed is greater than 49 and error code 54 is not displayed, continue to step 5.

2. Check for +5 Volts.

A. Disconnect the EDC control panel connectors C120 and C121. Turn the keystart ON. Measure the voltage between connector C120 pin 1 (LN) and C120 pin 4 (B). If the voltage indicated is greater than +5 Volts, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the voltage indicated is less than +5 Volts, continue to step 3.

3. Check for a short circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector C127 pin 5 (TN) and C127 pin 1 (B). If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 4.

4. Check for a short to ground.

A. Check between connector C127 pin 5 (TN) and ground. If a short a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

5. Check for a short to ground.

A. Check for an intermittent short to ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1619

ERROR CODE 57 -- EDC MICROPROCESSOR FAILURE Possible failure modes: 1. Faulty harness 2. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check fuse 12.

A. If a fault is indicated with fuse 12, continue to step 2.

B. If the fuse is okay, continue to step 4.

2. Check for a short to ground.

A. Disconnect the general control module (GCM) C127. Check between connector C127 pin 29 (N/R/B) and ground. If a short to ground is indicated, repair or replace the harness as required and replace the fuse.

B. If the harness is okay, continue to step 3.

3. Check for an intermittent short circuit.

A. Replace fuse 12. Turn the keystart OFF and ON. If the error code is still displayed, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the error code is not displayed, check for an intermittent short circuit. If an intermittent short circuit is indicated, repair or replace the harness as required.

4. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector C127 pin 29 (N/R/B) and fuse 12. If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 59 -- MICROPROCESSOR REFERENCE VOLTAGE OPEN CIRCUIT Possible failure modes: 1. Faulty harness 2. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the +5 Volt sensor supply reference in H9 Channel 12 (Range Command) Channel 5 (Dual Command).

A. If the value displayed is approximately 49, continue to step 4.

B. If the value displayed is not approximately 49, continue to step 2.

2. Check for +5 Volts.

A. Disconnect the EDC control panel connectors C120 and C121. Turn the keystart ON. Measure the voltage between connector C120 pin 1 (LN) and C120 pin 4 (B). If the voltage indicated is approximately +5 Volts, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

B. If the voltage indicated is not approximately +5 Volts, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C127 pin 5 (TN) and C120 pin 1 (LN) C127 pin 1 (B) and C120 pin 4 (B) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

4. Check for an intermittent open circuit.

A. Disconnect the general control module (GCM) connector C127. Check between connector C127 pin 5 (TN) and C120 pin 1 (LN). If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1625

ERROR CODE 63 -- EDC HYDRAULIC VALVE LOWER SOLENOID OPEN CIRCUIT ERROR CODE 65 -- EDC HYDRAULIC VALVE LOWER SOLENOID SHORT CIRCUIT Possible failure modes: 1. Faulty EDC valve lower solenoid 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the EDC valve lower solenoid.

A. Disconnect the EDC valve lower solenoid connector C218. Measure the resistance between the solenoid terminals. If the resistance indicated is not approximately 8 Ohms, remove and replace the EDC valve lower solenoid.

B. If the solenoid is okay, continue to step 2.

2. Check for +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C218 pin 1 (K/R) and ground. If the voltage indicated is approximately +12 Volts, continue to step 4.

B. If the voltage indicated is not approximately +12 Volts, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C127 pin 27 (K/G/B) and C218 pin 2 (K/G/B) C127 pin 19 (K/R) and C218 pin 1 (K/R) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for a short circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C127 pin 19 (K/R) and C127 pin 27 (K/G/B) C127 pin 19 (K/R) and ground C127 pin 27 (K/G/B) and ground If a short circuit or a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE 64 -- EDC HYDRAULIC VALVE RAISE SOLENOID OPEN CIRCUIT ERROR CODE 66 -- EDC HYDRAULIC VALVE RAISE SOLENOID SHORT CIRCUIT Possible failure modes: 1. Faulty EDC valve raise solenoid 2. Faulty harness 3. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the EDC valve raise solenoid.

A. Disconnect the EDC valve raise solenoid connector C217. Measure the resistance between the solenoid terminals. If the resistance indicated is not approximately 8 Ohms, remove and replace the EDC valve raise solenoid.

B. If the solenoid is okay, continue to step 2.

2. Check for +12 Volts.

A. Turn the keystart ON. Measure the voltage between connector C217 pin 1 (K/Y) and ground. If the voltage indicated is approximately +12 Volts, continue to step 4.

B. If the voltage indicated is not approximately +12 Volts, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C127 pin 20 (K/U) and C217 pin 1 (K/U) C127 pin 28 (K/U/B) and C217 pin 2 (K/U/B) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check for a short circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector: C127 pin 28 (K/U/B) and C127 pin 20 (K/U) C127 pin 28 (K/U/B) and ground C127 pin 20 (K/U) and ground If a short circuit or a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1631

ERROR CODE 67 -- EDC HYDRAULIC VALVE SUPPLY VOLTAGE TOO LOW Possible failure modes: 1. Faulty harness 2. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the +12 Volt reference in H9 Channel 10 (Range Command) Channel 8 (Dual Command).

A. If the value displayed is approximately 42, continue to test for error codes 63 to 66.

B. If the value displayed is not approximately 42, continue to step 2.

2. Check for +12 Volts at fuse 12.

A. Turn the keystart ON. Measure the voltage at fuse 12, If the voltage indicated is approximately +12 Volts, continue to step 3.

B. If the voltage indicated is not okay, check the supply from the battery to fuse 12.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connector C127. Check between connector C127 pin 29 (N/R/B) and fuse 12. If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, download the correct level of software. If the fault re--occurs, remove and replace the general control module (GCM).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

NOTES PAGE

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 SUSPENDED FRONT AXLE FAULT CODE LISTING

1635

MODELS: 120 TO 155 -- RANGE COMMAND TRANSMISSION Fault Code

Fault description

L01

Lockout valve raising solenoid not working

L02

Raising solenoid not working

L03

Lowering solenoid not working

L04

Front axle potentiometer threshold is higher than the set limit

L05

Front axle potentiometer threshold is lower than the set limit

L06

The suspension is not calibrated

L07

Front axle weight has been reduced but the suspension is unable to reset nominal height Front axle weight has been increased but the suspension is unable to reset nominal height Lockout valve lowering solenoid not working

L08 L09

Calibration Fault Code Listing

U01

Front axle potentiometer open circuit

U02

Front axle potentiometer threshold is higher than the set limit

U03

Front axle potentiometer short circuit

U04

Front axle potentiometer threshold is lower than the set limit

U05 U06

Front suspension is not reaching minimum and maximum position during the auto calibration procedure Not used

U07

Suspension is stationary during the raise command in the auto calibration procedure

U08

Suspension is unable to reach maximum height within 20 seconds

U09 U10

Suspension is stationary during the lowering command in the auto calibration procedure Suspension is unable to reach the minimum height within 25 seconds

U11

Unable to calibrate the suspension

U12

Auto calibration procedure stopped/vehicle not stationary

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ERROR CODE L01 -- LOCKOUT VALVE RAISING SOLENOID NOT WORKING Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the lockout valve raising solenoid connector C252 (identified with a Yellow Band) and the front suspension connector C248.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C252 and the general control module (GCM) connector C242. Check between connector: C252 pin 1 (O/U/S) and C242 pin 25 (O/U/S) C252 pin 2 (O/Y/S) and C242 pin 29 (L/NB/Y) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the solenoid.

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1639

ERROR CODE L02 -- RAISING SOLENOID NOT WORKING Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the raising solenoid connector C251 (identified with a Red Band) and the front suspension connector C248.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C251 and the general control module (GCM) connector C242. Check between connector: C251 pin 1 (O/B/S) and C242 pin 28 (O/B/S) C251 pin 2 (O/G/S) and C242 pin 22 (O/G/S) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the solenoid.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1641

1642

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE L03 -- LOWERING SOLENOID NOT WORKING Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the lowering solenoid connector C249 (identified with a Green Band) and the front suspension connector C248.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C249 and the general control module (GCM) connector C242. Check between connector: C249 pin 1 (O/N/S) and C242 pin 26 (O/N/S) C249 pin 2 (O/L/S) and C242 pin 21 (O/L/S) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the solenoid.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1645

ERROR CODE L04 -- FRONT AXLE POTENTIOMETER THRESHOLD IS HIGHER THAN THE SET LIMIT ERROR CODE L05 -- FRONT AXLE POTENTIOMETER THRESHOLD IS LOWER THAN THE SET LIMIT Possible failure modes: 1. Incorrect potentiometer linkage length 2. Faulty potentiometer linkage 3. Faulty connector 4. Faulty potentiometer 5. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the front axle potentiometer connector C253.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the calibration values.

A. Perform the auto calibration procedure (ACP). Record the higher and lower potentiometer values displayed. If the values displayed are greater than 970 and less than 150, check the potentiometer linkage length is 97mm and that no damage to the linkage is indicated. Adjust, repair or replace as required and perform the ACP. B. If the potentiometer linkage is okay, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C253 and the general control module (GCM) connectors C127 and C242. Check between connector: C253 pin 1 (O) and C127 pin 5 (O) C253 pin 2 (O) and C242 pin 32 (O) C253 pin 3 (B) and C127 pin 1 (B) C253 pin 3 (B) and ground If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check for a short circuit or short to ground A. Check between connector: C253 pin 1 (O) and C253 pin 2 (O) C253 pin 1 (O) and C253 pin 3 (B) C253 pin 2 (O) and C253 pin 3 (B) C253 pin 1 (O) and ground C253 pin 2 (O) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 5.

5. Check the potentiometer in H9 Channel 39.

A. Remove the potentiometer from the mounting and leave the connector connected. Turn the potentiometer fully clockwise and counter clockwise. If the values displayed are not approximately 12 -- 84, replace the potentiometer and perform the ACP.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

97mm

1647

1648

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE L06 -- THE SUSPENSION IS NOT CALIBRATED Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Perform the auto calibration procedure (ACP).

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1649

ERROR CODE L07 -- FRONT AXLE WEIGHT HAS BEEN REDUCED BUT THE SUSPENSION IS UNABLE TO RESET NOMINAL HEIGHT ERROR CODE L08 -- FRONT AXLE WEIGHT HAS BEEN INCREASED BUT THE SUSPENSION IS UNABLE TO RESET NOMINAL HEIGHT Possible failure modes: 1. Incorrect calibration 2. Incorrect potentiometer linkage length 3. Faulty potentiometer linkage Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes.

A. Perform the auto calibration procedure (ACP). If any ‘U’ error codes are displayed during the ACP, continue to the test for the ‘U’ error code that is displayed.

B. If no other error code is being displayed, continue to step 2 2. Check the potentiometer linkage length.

A. Check the potentiometer linkage length is 97mm and that no damage to the linkage is indicated. Adjust, repair or replace as required and perform the ACP.

97mm

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE L09 -- LOCKOUT VALVE LOWER SOLENOID NOT WORKING Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the lockout valve lower solenoid connector C250 (identified with a Black Band) and the front suspension connector C248.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C250 and the general control module (GCM) connector C242. Check between connector: C250 pin 1 (T/NG/Y) and C242 pin 27 (T/NG/Y) C250 pin 2 (T/NK/Y) and C242 pin 23 (T/NK/Y) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the solenoid.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1653

ERROR CODE U01 -- FRONT AXLE POTENTIOMETER OPEN CIRCUIT Possible failure modes: 1. Faulty connector 2. Faulty potentiometer 3. Faulty harness 4. Faulty general control module (GCM) Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the front axle potentiometer connector C253 and the general control module (GCM) connectors C127 and C242. Check between connector: C253 pin 1 (O) and C127 pin 5 (O) C253 pin 2 (O) and C242 pin 32 (O) C253 pin 3 (O) and C127 pin 1 (B) If an open or short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 2.

2. Check connector C253.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 3.

3. Check the 5 Volt reference in H9 channel 5 A. If the approximate value displayed is not 49, remove and replace general control module (GCM).

B. If the value displayed is okay, continue to step 4.

4. Check the calibration values.

A. Perform the auto calibration procedure (ACP) and record the higher and lower potentiometer values displayed.

B. If the values displayed are less than 150, continue to step 5.

5. Check the potentiometer in H9 Channel 39.

A. Remove the potentiometer from the mounting and leave the connector connected. Turn the potentiometer fully clockwise and counter clockwise. If the values displayed are not approximately 12 -- 84, replace the potentiometer and perform the ACP.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1655

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE U02 -- FRONT AXLE POTENTIOMETER THRESHOLD IS HIGHER THAN THE SET LIMIT Possible failure modes: 1. Incorrect potentiometer linkage length 2. Faulty potentiometer linkage 3. Faulty connector 4. Faulty potentiometer 5. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check connector C253.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the calibration values.

A. Perform the auto calibration procedure (ACP). Record the higher potentiometer value displayed. If the value displayed is greater than 970, check the potentiometer linkage length is 97mm and that no damage to the linkage is indicated. Adjust, repair or replace as required and perform the ACP. B. If the potentiometer linkage is okay, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C253 and the general control module (GCM) connectors C127 and C242. Check between connector: C253 pin 1 (O) and C127 pin 5 (O) C253 pin 2 (O) and C242 pin 32 (O) C253 pin 3 (B) and C127 pin 1 (B) C253 pin 3 (B) and ground If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check for a short circuit or short to ground A. Check between connector: C253 pin 1 (O) and C253 pin 2 (O) C253 pin 1 (O) and C253 pin 3 (B) C253 pin 2 (O) and C253 pin 3 (B) C253 pin 1 (O) and ground C253 pin 2 (O) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 5.

5. Check the potentiometer in H9 Channel 39.

A. Remove the potentiometer from the mounting and leave the connector connected. Turn the potentiometer fully clockwise and counter clockwise. If the values displayed are not approximately 12 -- 84, replace the potentiometer and perform the ACP.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

97mm

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1659

ERROR CODE U03 -- FRONT AXLE POTENTIOMETER SHORT CIRCUIT AUTO CALIBRATION PROCEDURE WILL NOT WORK Possible failure modes: 1. Faulty connector 2. Faulty potentiometer 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for a short circuit.

A. Turn the keystart OFF. Disconnect the front axle potentiometer connector C253 and the general control module (GCM) connectors C127 and C242. Check between connector: C253 pin 1 (O) and C253 pin 2 (O) C253 pin 1 (O) and C253 pin 3 (B) C253 pin 2 (O) and C253 pin 3 (B) If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 2.

2. Check the harness connector C001.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 3.

3. Check the potentiometer using H9 Channel 39.

A. Remove the potentiometer from the mounting and leave the connector connected. Turn the potentiometer fully clockwise and counter clockwise. If the values displayed are not approximately 12 -- 84, replace the potentiometer and perform the auto calibration procedure (ACP).

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1661

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE U04 -- FRONT AXLE POTENTIOMETER THRESHOLD IS LOWER THAN THE SET LIMIT Possible failure modes: 1. Incorrect potentiometer linkage length 2. Faulty potentiometer linkage 3. Faulty connector 4. Faulty potentiometer 5. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check connector C253.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the calibration values.

A. Perform the auto calibration procedure (ACP), and record the lower potentiometer value displayed. If the value displayed is less than 150, check the potentiometer linkage length is 97mm and that no damage to the linkage is indicated. Adjust, repair or replace as required and perform the ACP. B. If the potentiometer linkage is okay, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C253 and the general control module (GCM) connectors C127 and C242. Check between connector: C253 pin 1 (O) and C127 pin 5 (O) C253 pin 2 (O) and C242 pin 32 (O) C253 pin 3 (B) and C127 pin 1 (B) C253 pin 3 (B) and ground If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check for a short circuit or short to ground A. Check between connector: C253 pin 1 (O) and C253 pin 2 (O) C253 pin 1 (O) and C253 pin 3 (B) C253 pin 2 (O) and C253 pin 3 (B) C253 pin 1 (O) and ground C253 pin 2 (O) and ground If a short circuit or short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 5.

5. Check the potentiometer in H9 Channel 39.

A. Remove the potentiometer from the mounting and leave the connector connected. Turn the potentiometer fully clockwise and counter clockwise. If the values displayed are not approximately 12 -- 84, replace the potentiometer and perform the ACP.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

97mm

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1665

ERROR CODE U05 -- FRONT SUSPENSION IS NOT REACHING MINIMUM AND MAXIMUM POSITION DURING THE AUTO CALIBRATION PROCEDURE Possible failure modes: 1. Incorrect potentiometer linkage length 2. Faulty potentiometer 3. Mechanical fault with front suspension 4. Faulty potentiometer 5. Faulty hydraulic cylinder Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the calibration values.

A. Perform the auto calibration procedure (ACP), Record the higher and lower potentiometer values displayed. If the difference between the higher and lower value is less than 150, inspect the front suspension for any mechanical faults restricting travel or a hydraulic cylinder fault. Check the potentiometer linkage length is 97mm and that no damage to the linkage is indicated. Adjust, repair or replace as required and perform the ACP. B. If all of the above are okay, continue to step 2.

2. Check the potentiometer in H9 Channel 39.

A. Remove the potentiometer from the mounting and leave the connector connected. Turn the potentiometer fully clockwise and counter clockwise. If the values displayed are not approximately 12 -- 84, replace the potentiometer and perform the ACP.

97mm

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE U07 -- SUSPENSION IS STATIONARY DURING THE RAISE COMMAND IN THE AUTO CALIBRATION PROCEDURE Possible failure modes: 1. Faulty connector 2. Faulty high pressure hydraulic circuit 3. Faulty solenoid 4. Mechanical fault with front suspension 5. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the raising solenoid connector C251 (identified with a Red Band) and the front suspension connector C248.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the hydraulic lift and remote valves are operating correctly.

A. If they are not working correctly, check the high pressure hydraulic circuit.

B. If they are working correctly, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C251 and the general control module (GCM) connector C242. Check between connector: C251 pin 1 (O/B/S) and C242 pin 28 (O/B/S) C251 pin 2 (O/G/S) and C242 pin 22 (O/G/S) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for damage.

A. Inspect the front suspension for any mechanical faults or a hydraulic cylinder fault. Check the potentiometer for damage. Repair or replace as required and perform the auto calibration procedure (ACP).

B. If all of the above are okay, continue to step 5.

5. Check the ACP. A. Disconnect the implement and perform the ACP. B. If the error re--occurs, continue to step 6.

6. Check the solenoid valves.

A. Depressurise the suspension system and interchange the raise and lower solenoid valves. Perform the ACP, if fault now occurs on the lowering cycle, depressurise the suspension system and replace the solenoid valve assembly.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1669

ERROR CODE U08 -- SUSPENSION IS UNABLE TO REACH MAXIMUM HEIGHT WITHIN 20 SECONDS Possible failure modes: 1. Faulty connector 2. Faulty high pressure hydraulic circuit 3. Faulty solenoid 4. Mechanical fault with front suspension 5. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the raising solenoid connector C249 (identified with a green band) and the front suspension connector C248.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the hydraulic lift and remote valves are operating correctly.

A. If they are not working correctly, check the high pressure hydraulic circuit.

B. If they are working correctly, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connectors C249, C251 and the general control module (GCM) connector C242. Check between connector: C249 pin 1 (O/N/S) and C242 pin 26 (O/N/S) C249 pin 2 (O/L/S) and C242 pin 21 (O/L/S) C251 pin 1 (O/B/S) and C242 pin 28 (O/B/S) C251 pin 2 (O/G/S) and C242 pin 22 (O/G/S) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check for damage.

A. Inspect the front suspension for any mechanical faults or a hydraulic cylinder fault. Check the potentiometer for damage. Repair or replace as required and perform the auto calibration procedure (ACP).

B. If all of the above are okay, continue to step 5.

5. Check the ACP. A. Disconnect the implement and perform the ACP. B. If the error re--occurs, continue to step 6.

6. Check the solenoid valves.

A. Depressurise the suspension system and interchange the raise and lower solenoid valves. Perform the ACP, if the fault now occurs on the lowering cycle, depressurise the suspension system and replace the solenoid valve assembly.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1671

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE U09 -- SUSPENSION IS STATIONARY DURING THE LOWERING COMMAND IN THE AUTO CALIBRATION PROCEDURE ERROR CODE U10 -- SUSPENSION IS UNABLE TO REACH THE MINIMUM HEIGHT WITHIN 25 SECONDS Possible failure modes: 1. Faulty connector 2. Faulty high pressure hydraulic circuit 3. Faulty solenoid 4. Mechanical fault with front suspension 5. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the lowering solenoid connector C249 (identified with a green band) and the front suspension connector C248.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the hydraulic lift and remote valves are operating correctly.

A. If they are not working correctly, check the high pressure hydraulic circuit.

B. If they are working correctly, continue to step 3.

3. Check for an open circuit.

A. Turn the keystart OFF. Disconnect connector C249 and the general control module (GCM) connector C242. Check between connector: C249 pin 1 (O/N/S) and C242 pin 26 (O/N/S) C249 pin 2 (O/L/S) and C242 pin 21 (O/L/S) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check for damage.

A. Inspect the front suspension for any mechanical faults or a hydraulic cylinder fault. Check the potentiometer for damage. Repair or replace as required and perform the auto calibration procedure (ACP).

B. If all of the above are okay, continue to step 5.

5. Check the ACP. A. Disconnect the implement and perform the ACP. B. If the error re--occurs, continue to step 6.

6. Check the solenoid valves.

A. Depressurise the suspension system, and interchange the raise and lower solenoid valves. Perform the ACP, if the fault now occurs on the raising cycle, depressurise the suspension system and replace the solenoid valve assembly.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1673

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1675

ERROR CODE U11 -- UNABLE TO CALIBRATE THE SUSPENSION Possible failure modes: 1. Handbrake has not been applied 2. Faulty suspension lockout switch 3. Faulty high pressure hydraulic circuit 4. Mechanical fault with front suspension 5. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the handbrake has been applied to prevent the tractor from moving.

A. If the handbrake has not been applied, apply the handbrake.

B. If the handbrake has been applied, continue to step 2.

2. Check that the suspension lockout switch has been pressed more than three times.

A. If the switch has not been pressed more than three times perform the auto calibration procedure (ACP).

B. If the switch has been pressed correctly, continue to step 3.

3. Check the suspension switch in the diagnostic mode H5.

A. Press and hold down the suspension lockout switch. If d6 is not displayed, continue to step 4.

B. If d6 is displayed, continue to step 5.

4. Check for an open circuit.

A. Turn the keystart OFF. Disconnect the general control module (GCM) connectors C127, C242 and the front suspension switch C247. Check between connector: C242 pin 9 (U/LG/S) and C247 pin 1 (U/LG/S) C127 pin 34 (O/R/S) and C247 pin 2 (O/R/S) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the switch.

5. Check the hydraulic lift and remote valves are operating correctly.

A. If they are not working correctly, check the high pressure hydraulic circuit.

B. If they are working correctly, continue to step 6.

6. Check for damage.

A. Inspect the front suspension for any mechanical faults or a hydraulic cylinder fault. Check the potentiometer for damage. Repair or replace as required and perform the ACP.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE U12 -- AUTO CALIBRATION PROCEDURE STOPPED/VEHICLE NOT STATIONARY Possible failure modes: 1. Handbrake has not been applied 2. Faulty speed sensor 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the handbrake has been applied to prevent the tractor from moving.

A. If the handbrake has not been applied, apply the handbrake.

B. If the handbrake has been applied, continue to step 2.

2. Check the wheel speed value in H9 Channel 43.

A. If the wheel speed value displayed is not 0, check the stored error codes for a recent occurrence of EDC 49. If any of these error codes are displayed, continue to this test.

B. If the wheel speed value displayed is 0 or no additional error codes are displayed, continue to step 3.

3. Check the ground speed input value in H9 Channel 20.

A. If the ground speed input value displayed is approximately 50, remove and replace the transmission output speed sensor.

B. If the ground speed input value is incorrect, check the speed sensor connector C046. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 ELECTRONIC MANAGEMENT UNIT FAULT CODE LISTING

1679

MODELS: 120 TO 155 -- RANGE COMMAND TRANSMISSION The Electronic Management Unit has an inbuilt self diagnostic system to assist with the detection of faults should they occur.

If a fault occurs that is related to the Electronic management Unit a two digit code prefixed with a ‘P’ will be displayed on the instrument cluster. Should more than one fault occur at any one time, the fault with the highest priority will be displayed followed by the lower priority error code. Error codes present at key ON will similarly be displayed.

PRIORITY (1 = Highest)

FAULT CODE

ERROR DESCRIPTION

1

P01

Rear PTO brake solenoid stuck off

2

P02

Rear PTO brake solenoid stuck on

3

P03

Rear PTO brake output open circuit

4

P04

Rear PTO brake driver over temperature

5

P05

Not used

6

P06

Rear PTO not calibrated

7

P07

Rear PTO solenoid over current

8

P08

Rear PTO solenoid stuck off

9

P09

Not used

10

P10

Not used

13

P13

Not used

14

P14

Not used

15

P15

Differential lock solenoid stuck off

16

P16

Differential lock solenoid stuck on

17

P17

Differential lock output open circuit

18

P18

Differential lock driver over temperature

19

P19

Not used

20

P20

Not used

21

P21

4WD solenoid stuck off

22

P22

4WD solenoid stuck on

23

P23

4WD output open circuit

24

P24

4WD driver over temperature

25

P25

Not used

26

P26

Not used

27

P27

PTO speed sensor open circuit

28

P28

Not used

29

P29

Not used

30

P30

Not used

31

P31

Steering sensor out of range -- maximum voltage

32

P32

Steering sensor out of range -- minimum voltage

33

P33

Rear PTO cab switch momentary contact open circuit

34

P34

Fender mounted rear PTO switch open circuit or short to ground

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

PRIORITY (1 = Highest)

FAULT CODE

ERROR DESCRIPTION

35

P35

Fender mounted rear PTO switch (if fitted) input short to +12 Volts or short across fender switch wires

36

P36

Rear PTO failure to start -- relay or switch wiring

37

P37

Rear PTO cab switch momentary contact stuck closed (longer than 30 seconds)

38

P38

Cab and fender rear PTO controls operated within 2 seconds of each other

39

P39

Incorrect voltage on fender mounted rear PTO switch input (if fitted)

40

P40

PTO relay coil short to +12 Volts or open circuit

41

P41

PTO relay coil short to ground

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1681

ERROR CODE P01 -- REAR PTO BRAKE SOLENOID STUCK OFF Effects: PTO disabled.

Possible failure modes: 1. Faulty solenoid valve 2. Faulty harness 3. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes.

A. Turn the keystart OFF. Disconnect the rear PTO brake solenoid connector C033. Turn the keystart ON and check for other errors. If error P02 or P02 and P03 are displayed, continue to step 2.

B. If only error P01 is displayed continue to step 3.

2. Check the rear PTO brake solenoid.

A. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 5 -- 11 Ohms, remove and replace the solenoid.

B. If the solenoid is okay, remove and replace the electronic management unit.

3. Check for a short to ground.

A. Turn the keystart OFF. Disconnect connector C033 and the electronic management unit connector C105.

Check between connector C105 pin 35 (B/N/S) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1683

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE P02 -- REAR PTO BRAKE SOLENOID STUCK ON Effects: PTO disabled.

Possible failure modes: 1. Faulty harness 2. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes.

A. Turn the keystart ON. Disengage four wheel drive and the differential lock. Turn the keystart OFF and set the PTO brake switch to the brake applied position. Disengage the front and rear PTO engagement switches.

Turn the keystart ON again. If error codes P02 and P03 are displayed, continue to test for error code P03.

B. If error codes P02 and P03 are not displayed, continue to step 2.

2. Check for a short to +12 Volts.

A. Turn the keystart OFF and ON. Set the PTO brake switch to the OFF position, P02 should be displayed.

Disconnect the rear PTO brake connector C033 and the electronic management unit C105. Turn the keystart ON. Measure the voltage between connector C105 pin 35 (B/N/S) and ground. If a voltage is indicated, repair or replace the harness as required.

B. If a voltage is not indicated, continue to step 3.

3. Check for a short circuit.

A. Turn the keystart OFF. Check between connector C105 pin 35 (B/N/S) and the other C105 pins. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P03 -- REAR PTO BRAKE OUTPUT OPEN CIRCUIT Effects: PTO disabled.

Possible failure modes: 1. Faulty connectors 2. Faulty solenoid 3. Faulty harness 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the rear PTO brake solenoid connector C033.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the solenoid for an open circuit.

A. Disconnect connector C033. Check between the solenoid terminals. If an open circuit is indicated, remove and replace the solenoid.

B. If the solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Check between connector C033 pin 2 (B) and ground. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for an open circuit.

A. Disconnect the electronic management unit C105. Check between connector C105 pin 35 (B/N/S) and C033 pin 1 (B/N/S). If an open circuit is indicated, disconnect connector C019 and check between connector: C019 pin 20 (B/N/S) and C105 pin 35 (B/N/S) C019 pin 20 (B/N/S) and C033 pin 1 (B/N/S) to determine which harness is at fault. Repair or replace the harness as required.

B. If the harness is okay, continue to step 5 5. Check connectors C105, C019 and C033.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the error code re--occurs, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE P04 -- REAR PTO BRAKE DRIVER OVER TEMPERATURE Possible failure modes: 1. Faulty connectors 2. Faulty solenoid 3. Faulty harness 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the rear PTO brake solenoid.

A. Disconnect the rear PTO brake solenoid connector C033. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 5 -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the solenoid is okay, continue to step 2.

2. Check for a short to ground.

A. Disconnect the electronic management unit connector C105. Check between the electronic management unit connector C105 pin 35 (B/N/S) and ground. If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 3.

3. Check for a short circuit.

A. Check between connector C105 pin 35 and the other pins of C105. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check the connector C105.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P06 -- REAR PTO NOT CALIBRATED Effects: PTO enabled. P06 error displayed on the instrument cluster.

Possible failure modes: 1. Transmission not calibrated 2. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check if the PTO was calibrated.

A. If the PTO was not calibrated after a change of the electronic management unit or after using H8, clear the non--volatile memory (EEPROM). Perform the PTO calibration procedure.

B. If the PTO was calibrated, perform the PTO calibration procedure. If the fault re--occurs again, remove and replace the electronic management unit.

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ERROR CODE P07 -- REAR PTO SOLENOID OVER CURRENT ERROR CODE P08 -- REAR PTO SOLENOID STUCK OFF Possible failure modes: 1. Faulty solenoid 2. Faulty harness 3. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the rear PTO solenoid.

A. Turn the keystart OFF. Disconnect the rear PTO solenoid connector C041. Measure the resistance between the solenoid terminal 1 and terminal 2. If the resistance indicated is not between 5 Ohms -- 11 Ohms at 20 degrees centigrade, remove and replace the rear PTO solenoid.

B. If the resistances indicated are okay, continue to step 3.

3. Check the rear PTO solenoid for a short to ground.

A. Check between the solenoid: Terminal 1 and ground Terminal 2 and ground If a short to ground is indicated, remove and replace the rear PTO solenoid.

B. If the solenoid is okay, continue to step 4.

4. Check for a short to ground.

A. Disconnect the rear PTO cab switch C116. Check between connector C041 pin 1 (O/P) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If a short to ground is not indicated, continue to step 5.

5. Check for a short to ground.

A. Disconnect the electronic management unit connector C105. Check between connector: C105 pin 13 (O/Y) and ground C105 pin 18 (O/G) and ground If a short to ground is indicated, repair or replace the harness as required B. If the harness is okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P15 -- DIFFERENTIAL LOCK SOLENOID STUCK OFF Possible failure modes: 1. Faulty solenoid 2. Faulty harness 3. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

NOTE: Do not depress the brake pedals.

1. Check for other error codes.

A. Disconnect the differential lock solenoid connector C042. Turn the keystart ON. Select manual differential lock.

If only error code P15 is being displayed, continue to step 2.

B. If error codes P16 or P16 and P17 are displayed, continue to step 3.

2. Check for a short to ground.

A. Turn the keystart OFF. Disconnect connector C042 and the electronic management unit connector C105.

Check between connector C105 pin 36 (B/LTG) and ground. If a short to ground is indicated, disconnect the harness connector C019 and check between connector: C105 pin 36 (B/LTG) and ground C042 pin 1 (B/LTG) and ground to determine which harness is at fault. Repair or replace the harness as required.

B. If the harness is okay, remove and replace the electronic management unit.

3. Check the differential lock solenoid.

A. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 5 -- 11 Ohms, remove and replace the solenoid.

B. If the solenoid is okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE P16 -- DIFFERENTIAL LOCK SOLENOID STUCK ON Possible failure modes: 1. Faulty harness 2. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes.

A. Turn the keystart ON. Disengage the differential lock. Turn the Keystart OFF and ON, error code P16 should be displayed. Select manual differential lock. If P17 is being displayed, continue to test for error code P17.

B. If P17 is not being displayed, continue to step 2.

2. Check for a short to +12 Volts.

A. Disconnect the differential lock connector C042 and the electronic management unit connector C105.

Turn the keystart ON. Check between connector C105 pin 36 (B/LTG) and ground. If a short to +12 Volts is indicated, repair or replace the harness as required.

B. If no short to +12 Volts is indicated, continue to step 3.

3. Check for a short circuit.

A. Turn the keystart OFF. Check between connector C105 pin 36 (B/LTG) and the other C105 connector pins. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1703

ERROR CODE P17 -- DIFFERENTIAL LOCK OUTPUT OPEN CIRCUIT Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the differential lock solenoid connector C042.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the solenoid for an open circuit.

A. Disconnect the differential lock solenoid connector C042. Check between the solenoid terminals. If an open circuit is indicated, remove and replace the solenoid.

B. If the solenoid is okay, continue to step 3.

3. Check for an open circuit.

A. Check between connector C042 pin 2 (B) and ground. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for an open circuit.

A. Disconnect the electronic management unit connector C105. Check between connector C105 pin 36 (B/LTG) and C042 pin 1 (B/LTG). If an open circuit is indicated, disconnect connector C019 and check between connector: C019 pin 22 (B/LTG) and C042 pin 1 (B/LTG) C019 pin 22 (B/LTG) and C105 pin 36 (B/LTG) to determine which harness is at fault. Repair or replace the harness as required.

B. If the harness is okay, continue to step 5.

5. Check connectors C105, C019 and C042.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE P18 -- DIFFERENTIAL LOCK DRIVER OVER TEMPERATURE Possible failure modes: 1. Faulty solenoid 2. Faulty harness 3. Faulty connector 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the differential lock solenoid.

A. Disconnect the differential lock solenoid connector C042. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 5 -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the solenoid is okay, continue to step 2.

2. Check for a short to ground.

A. Check between the electronic management unit connector C105 pin 36 (B/LTG) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If a short to ground is not indicated, continue to step 3.

3. Check for a short circuit.

A. Check between connector C105 pin 36 (B/LTG) and the other pins of C105. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check connector C105.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, remove and replace the electronic management unit.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1709

ERROR CODE P21 -- 4WD SOLENOID STUCK OFF Possible failure modes: 1. Faulty solenoid 2. Faulty harness 3. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes.

A. Turn the keystart OFF. Disconnect the 4WD solenoid connector C034. Turn the keystart ON and make sure 2WD is selected. Turn the Keystart OFF and ON. If only error P21 is displayed continue to step 2.

B. If error P22 or P22 and P23 are displayed, continue to step 3.

2. Check for a short to ground.

A. Turn the keystart OFF. Disconnect the electronic management unit connector C105. Check between connector C105 pin 14 (Y/U) and ground. If a short to ground is indicated, disconnect connector C019 and check between connector: C105 pin 14 (Y/U) and ground C034 pin 1 (Y/U) and ground to determine which harness is at fault. Repair or replace the harness as required.

B. If the harness is okay, remove and replace the electronic management unit.

3. Check the 4WD solenoid.

A. Measure the resistance between the solenoid terminals. If the resistance indicated is not between 5 -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the solenoid is okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P22 -- 4WD SOLENOID STUCK ON Possible failure modes: 1. Faulty harness 2. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes.

A. Turn the keystart ON. Select manual 4WD. Turn the keystart OFF and depress both brake pedals. Turn the keystart ON and momentarily crank the engine (no need to start). P22 should still be displayed. Release the brake pedals and check for error code P23. If error code P23 is displayed, continue to test for error code P23.

B. If P23 is not being displayed, continue to step 2.

2. Check for a short to +12 Volts.

A. Turn the keystart OFF. Disconnect the 4WD solenoid connector C034 and the electronic management unit connector C105. Turn the keystart ON. Check between connector C105 pin 14 (Y/U) and ground. If a short to +12 Volts is indicated, repair or replace the harness as required.

B. If a short to +12 Volts is not indicated, continue to step 3.

3. Check for a short circuit.

A. Turn keystart OFF. Check between connector C105 pin 14 (Y/U) and the other C105 connector pins. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1715

ERROR CODE P23 -- 4WD OUTPUT OPEN CIRCUIT Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the 4WD solenoid connector C034.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the solenoid for an open.

A. Disconnect connector C034. Check between the solenoid terminals. If an open circuit is indicated, remove and replace the solenoid.

B. If the solenoid is okay, continue to step 3.

3. Check for an open ground circuit.

A. Check between connector C034 pin 2 (B) and ground. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for an open circuit.

A. Disconnect the electronic management unit connector C105. Check between connector C105 pin 14 (Y/U) and C034 pin 1 (Y/U). If an open circuit is indicated, disconnect the harness connector C019 and check between connector: C019 pin 19 (Y/U) and C034 pin 1 (Y/U) C019 pin 19 (Y/U) and C105 pin 14 (Y/U) to determine which harness is at fault. Repair or replace the harness as required.

B. If the harness is okay, continue to step 5.

5. Check connectors C105 and C019.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P24 -- 4WD DRIVER OVER TEMPERATURE Possible failure modes: 1. Faulty connector 2. Faulty solenoid 3. Faulty harness 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the 4WD solenoid.

A. Disconnect the 4WD solenoid connector C034. Measure the resistance between the solenoid terminals.

If the resistance indicated is not between 5 -- 11 Ohms at 20 degrees centigrade, remove and replace the solenoid.

B. If the solenoid is okay, continue to step 2.

2. Check for a short circuit.

A. Check between the electronic management unit connector C105 pin 14 (Y/U) and ground. If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 3 3. Check for a short circuit.

A. Check between connector C105 pin 14 (Y/U) and the other pins of C105. If a short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check the connector C105.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1721

ERROR CODE P27 -- PTO SPEED SENSOR OPEN CIRCUIT Effects: PTO disabled.

Possible failure modes: 1. Faulty connector 2. Faulty sensor 3. Faulty harness 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the speed sensor connector C054.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check the PTO speed sensor.

A. Disconnect connector C054. Check between the speed sensor terminals. If an open circuit is indicated, remove and replace the speed sensor.

B. If the speed sensor is okay, continue to step 3.

3. Check for an open ground circuit.

A. Check between connector C054 pin 2 (B) and ground. If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

4. Check for an open circuit.

A. Disconnect the electronic management unit connector C105. Check between connector C105 pin 23 (B/O/S) and C054 pin 1 (B/O/S). If an open circuit is indicated, disconnect connector C019 and check between connector: C019 pin 14 (B/O/S) and C054 pin 1 (B/O/S) C019 pin 14 (B/O/S) and C120 pin 23 (B/O/S) to determine which harness is at fault. Repair or replace the harness as required.

B. If the harness is okay, continue to step 5.

5. Check connectors C105 and C019.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, remove and replace the electronic management unit.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P31 -- STEERING SENSOR OUT OF RANGE -- (MAXIMUM VOLTAGE) Possible failure modes: 1. Faulty connector 2. Faulty steering sensor 3. Faulty harness 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for a short to +12 Volts.

A. Disconnect the steering sensor connector C014. Turn the keystart ON. Check between the component side of connector: C014 pin 1 (R)and ground C014 pin 2 (Y) and ground C014 pin 3 (B) and ground If a short to +12 Volts is indicated, repair or replace the steering sensor harness as required.

B. If a short is not indicated, continue to step 2.

2. Check for a short circuit.

A. Turn the keystart OFF. Check between the component side of connector C014 pin 1 (R), pin 2 (Y) and pin 3 (B). If a short circuit is indicated, repair or replace the steering sensor as required.

B. If a short circuit is not indicated, continue to step 3.

3. Check the steering sensor.

A. Measure the resistance between the component side of connector C014 pin 1 (R) and C014 pin 3 (B).

If the resistance indicated is not 5K -- 6K Ohms, repair or replace the sensor as required B. If the sensor is okay, continue to step 4.

4. Check connector C014.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 5.

5. Check for a short to +12 Volts.

A. Disconnect connector C014 and the electronic management unit connector C105. Turn the keystart ON and measure the voltage between connector C105 pin 4 (B/K/S), pin 27 (B/LTG/S) and pin 28 (B/G/S). If +12 Volts is indicated, repair or replace the harness as required.

B. If a short is not indicated, continue to step 6.

6. Check for a short circuit.

A. Turn the keystart OFF and leave connectors C014 and C105 disconnected. Check between connector C105 pin 4 (B/K/S), pin 27 (B/LTG/S) and pin 28 (B/G/S). If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 7.

7. Check for an open circuit.

A. Check between connector: C105 pin 28 (B/G/S) and C014 pin 1 (B/G/S) C105 pin 4 (B/K/S) and C014 pin 2 (B/K/S) C105 pin 27 (B/LTG/S) and C014 pin 3 (B/LTG/S) If an open circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, replace the electronic management unit and perform the calibration.

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ERROR CODE P32 -- STEERING SENSOR OUT OF RANGE -- (MINIMUM VOLTAGE) Possible failure modes: 1. Faulty connector 2. Faulty steering sensor 3. Faulty harness 4. Faulty electronic management unit Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for a short to ground.

A. Disconnect the steering sensor connector C014. Turn the keystart OFF. Check between the component side of connector: C014 pin 1 (R)and ground C014 pin 2 (Y) and ground C014 pin 3 (B) and ground If a short to ground is indicated, repair or replace the steering sensor harness as required.

B. If a short is not indicated, continue to step 2.

2. Check for a short circuit.

A. Turn the keystart OFF. Check between the component side of connector C014 pin 1 (R), pin 2 (Y) and pin 3 (B). If a short circuit is indicated, repair or replace the steering sensor as required.

B. If a short circuit is not indicated, continue to step 3.

3. Check the steering sensor.

A. Measure the resistance between the component side of connector C014 pin 1 (R) and C014 pin 3 (B).

If the resistance indicated is not 5 -- 6K Ohms, repair or replace the sensor as required B. If the sensor is okay, continue to step 4.

4. Check connector C014.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 5.

5. Check for a short to ground.

A. Disconnect the electronic management unit connector C105. Turn the keystart OFF. Check between connector: C105 pin 4 (B/K/S) and ground C105 pin 27 (B/LTG/S) and ground C105 pin 28 (B/G/S) and ground If a short to ground is indicated, repair or replace the harness as required.

B. If a short to ground is not indicated, continue to step 6.

6. Check for a short circuit.

A. Turn the keystart OFF and leave connectors C014 and C105 disconnected. Check between connector C105 pin 4 (B/K/S), pin 27 (B/LTG/S) and pin 28 (B/G/S). If a short circuit is indicated, repair or replace the harness as required.

B. If a short circuit is not indicated, continue to step 7.

7. Check for an open circuit.

A. Check between connector: C105 pin 28 (B/G/S) and C014 pin 1 (B/G/S) C105 pin 4 (B/K/S) and C014 pin 2 (B/K/S) C105 pin 27 (B/LTG/S) and C014 pin 3 (B/LTG/S) If an open circuit is indicated, repair or replace the harness as required.

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B. If the harness is okay, replace the electronic management unit and perform the calibration.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

1731

ERROR CODE P33 -- REAR PTO CAB SWITCH MOMENTARY CONTACT OPEN Possible failure modes: 1. Faulty PTO switch 2. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the rear PTO cab switch.

A. Disconnect the rear PTO cab switch connector C116. Measure the resistance between the component side of C116 pin 1 (O/G) and C116 pin 2 (B). If the resistance indicated is not approximately15K Ohms, replace the switch assembly.

B. If the switch is okay, continue to step 2.

2. Check for an open circuit.

A. Disconnect the electronic management unit connector C105. Check between connector: C116 pin 1 (O/G) and C105 pin 18 (O/G) C116 pin 3 (B) and ground If an open circuit is indicated, repair or replace the harness as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P34 -- FENDER MOUNTED REAR PTO SWITCH OPEN CIRCUIT OR SHORT TO GROUND Possible failure modes: 1. Faulty connector 2. Faulty fender mounted rear PTO switch 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the fender mounted rear PTO switches.

A. Disconnect each of the rear PTO switch connectors C257 and C258. While operating the fender switches, measure the resistance between pin 1 (R/LG/B) and pin 2 (W/U) of each fender switch. If the resistance indicated is not approximately 1.0K ohms released and 0.015K ohms depressed, remove and replace the faulty switch.

B. If the fender switches are okay, continue to step 2.

2. Check for a short to ground.

A. Disconnect the electronic management unit connector C105. Check between connector C105 pin 31 (W/U) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If a short to ground is not indicated, continue to step 3.

3. Check for an open circuit.

A. Check between connector: C105 pin 31 (W/U) and C257 pin 2 (W/U) C105 pin 31 (W/U) and C258 pin 2 (W/U) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, attempt to ‘wiggle’ the harness in case the fault is intermittent. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE P35 -- FENDER MOUNTED REAR PTO SWITCH INPUT SHORT TO +12V OR SHORT ACROSS FENDER SWITCH WIRES Possible failure modes: 1. Faulty connector 2. Faulty fender mounted rear PTO switch 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the fender mounted rear PTO switches.

A. Disconnect each of the rear PTO switch connectors C257 and C258. While operating the fender switches, measure the resistance between pin 1 (R/LG/B) and pin 2 (W/U) of each fender switch. If the resistance indicated is not approximately 1.0K ohms released and 0.015K ohms depressed, remove and replace the faulty switch.

B. If the fender switches are okay, continue to step 2.

2. Check for a short to +12 Volts.

A. Turn the keystart ON. With the electronic management unit connector C105 connected, check between connector: C257 pin 2 (W/U) and ground C258 pin 2 (W/U) and ground If a short to +12 Volts is indicated, repair or replace the harness as required.

B. If a short to + 12 Volts is not indicated, attempt to ‘wiggle’ the harness in case the fault is intermittent.

Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight.

Repair or replace as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE P36 -- REAR PTO FAILURE TO START -- RELAY OR SWITCH WIRING FAULT Possible failure modes: 1. Faulty connector 2. Faulty fender switch relay KX 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for other error codes being displayed.

A. If any other error code is being displayed, continue to these tests.

B. If no other error code is displayed, continue to step 2.

2. Check the rear PTO switch connector C116 and the electronic managemnet unit C105.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 3.

3. Check the fender switch relay KX. A. Check the operation of the relay. If a fault is indicated, remove and replace the relay.

B. If the relay is okay, continue to step 4.

4. Check for an open circuit.

A. Disconnect connectors C116 and C105. Remove the fender switch relay KX. Check between connector: C105 pin 12 (O/LG) and the fender switch relay socket pin 4 (O/LG) C116 pin 3 (O/Y) and the fender switch relay socket pin 3 (O/Y) C116 pin 4 (O/L) and the fender switch relay socket pin 1 (O/L) If an open circuit is indicated, repair or replace the harness as required.

B. If an open circuit is not indicated, continue to step 4.

5. Check for a short to ground.

A. Check between connector: C116 pin 3 (O/Y) and ground C105 pin 12 (O/LG) and ground If a short to ground is indicated, repair or replace the harness as required.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P37 -- REAR PTO CAB SWITCH MOMENTARY CONTACT STUCK CLOSED (LONGER THAN 30 SECONDS) Possible failure modes: 1. Faulty PTO cab switch 2. Faulty Harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the rear PTO cab switch is not stuck on.

A. If the switch is stuck on, remove and replace the switch.

B. If the switch is not stuck on, continue to step 2.

2. Check the rear PTO cab switch.

A. Disconnect the rear PTO cab switch connector C116. Measure the resistance between the component side of C116 pin 1 (O/G) and C116 pin 2 (B). If the resistance indicated is not approximately15K Ohms, replace the switch assembly.

B. If the switch is okay, continue to step 3.

3. Check for a short to ground.

A. Disconnect the electronic management unit connector C105. Check between connector C105 pin 18 (O/G) and ground. If a short to ground is indicated, repair or replace the harness as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

ERROR CODE P38 -- CAB AND FENDER REAR PTO CONTROLS OPERATED WITHIN 2 SECONDS OF EACH OTHER Effects: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

Operator error. Leave for 10 seconds then operate.

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ERROR CODE P39 -- INCORRECT VOLTAGE ON FENDER MOUNTED REAR PTO SWITCH INPUT (IF FITTED) Possible failure modes: 1. Faulty fuse 15 2. Faulty connector 3. Faulty fender mounted rear PTO switch 4. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check fuse 15.

A. If a fault is indicated with fuse 15, replace the fuse and re--check.

B. If the fuse is okay, continue to step 2.

2. Check for +12 Volts.

A. Disconnect each of the rear PTO switch connectors C257 and C258. Measure the voltage between connector: C257 pin 1 (R/LTG/B) and ground C258 pin 1 (R/LG/B) and ground If +12 is not indicated, repair or replace the harness as required.

B. If +12 Volts is indicated, continue to step 3.

3. Check the fender mounted rear PTO switches.

A. While operating the fender switches, measure the resistance between pin 1 (R/LG/B) and pin 2 (W/U) of each fender switch. If the resistance indicated is not approximately 1.0K ohms released and 0.015K ohms depressed, remove and replace the faulty switch.

B. If the fender switches are okay, continue to step 4.

4. Check for an open circuit.

A. Check between connector: C105 pin 31 (W/U) and C257 pin 2 (W/U) C105 pin 31 (W/U) and C258 pin 2 (W/U) If an open circuit is indicated, repair or replace the harness as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P40 -- PTO RELAY SHORT TO +12V OR AN OPEN CIRCUIT Possible failure modes: 1. Faulty connector 2. Faulty fender switch relay KX 3. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the fender switch relay KX connection.

A. Ensure the relay is connected, not damaged, the pins are in the correct position and that the fit is tight.

Repair or replace as required.

B. If the relay is correctly installed, continue to step 2.

2. Check the fender switch relay KX. A. Check the operation of the relay. If a fault is indicated, remove and replace the relay.

B. If the relay is okay, continue to step 3.

3. Check for a short to +12 Volts.

A. Disconnect the electronic management unit connector C105 and remove the fender switch relay KX. Turn the keystart ON. Measure the voltage between connector C105 pin 12 (O/LG) and ground. If a short to +12 Volts is indicated, repair or replace the harness as required.

B. If a short to +12 Volts is not indicated, continue to step 4.

4. Check for an open circuit.

A. Check between connector C105 pin 12 (O/LG) and the fender switch relay socket pin 4 (O/LG). If an open circuit is indicated, repair or replace the harness as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE P41 -- PTO FENDER SWITCH RELAY SHORT TO GROUND Possible failure modes: 1. Faulty fender switch relay KX 2. Faulty harness Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the fender switch relay KX. A. Check the operation of the relay. If a fault is indicated, remove and replace the relay.

B. If the relay is okay, continue to step 2.

2. Check for a short to ground.

A. Disconnect the electronic management unit connector C105 and remove the fender switch relay KX. Check between connector C105 pin 12 (O/LG) and ground. If a short to ground is indicated, repair or replace the harness as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 DIGITAL INSTRUMENT CLUSTER FAULT CODE LISTING

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MODELS: 120 TO 155 -- RANGE COMMAND TRANSMISSION The Digital Instrument Cluster (DIC) features an integral fault diagnosis system which displays error codes on the LCD as shown in the following Table.

These error codes appear when any one of the listed errors occurs. The alarm sounds continuously for a critical alarm and for 5 seconds with a non critical alarm.

EIC DISPLAY SENSOR CONDITION

Engine oil pressure sender short or open circuit Engine oil pressure sender short to a +ve Voltage Fuel tank level sender short to ground Fuel tank level sender Open circuit or short to a +ve voltage Wheel speed sensor short to ground Wheel speed sensor Open Circuit Coolant temperature sender short circuit Electronic draft control error serial Link Failure Transmission error serial link failure Memory retention error of battery calibration constant Slip alarm, slip constant, width and service hours check Coolant temperature sender open circuit or shorted to a +ve voltage Engine shut down output short to a +ve voltage

Non DIC Faults -- only displayed in the Diagnostic Memory.

Less than 500 rev/min Fault Code No.

ALARM

More than 500 rev/min

Critical Critical Non Critical Non Critical Non Critical Non Critical Non Critical

Non Critical Critical

Read Your Manual (RYM)

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INSTRUMENT CLUSTER INOPERATIVE Possible failure modes: 1. Faulty battery 2. Faulty fuse 9 3. Faulty connectors 4. Faulty harness 5. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the battery.

A. Ensure the gear levers are in neutral position. Turn the keystart switch to crank the engine. If the battery is not sufficiently charged to crank the engine, perform a battery test and recharge the battery as required.

B. If the battery is sufficiently charged to crank the engine, continue to step 2.

2. Check fuse 9.

A. If a fault is indicated with fuse 9, replace the fuse and re--check.

B. If the fuse is okay, continue to step 3.

3. Check for +12 Volts at the instrument cluster.

A. Remove the instrument cluster and disconnect connector C079. Turn the keystart ON. Measure the voltage between connector C079 pin 2 (B) and C079 pin 3 (G). If the voltage indicated is approximately +12 Volts, continue to step 4.

B. If approximately +12 Volts is not indicated, continue to step 5.

4. Check connector C079.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, replace the instrument cluster.

5. Check for +12 Volts at the instrument cluster.

A. Turn the keystart ON. Measure the voltage between connector C079 pin 3 (G) and the battery ground terminal. If the voltage indicated is approximately +12 Volts, the fault is in the ground wiring. Repair or replace the harness as required.

B. If the voltage indicated is not approximately +12 Volts, the fault is in the power supply wiring. Repair or replace the harness as required.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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COMMON TEST PROCEDURE FOR ALL OF THE SWITCH CIRCUITS CONNECTING TO GROUND Possible failure modes: 1. Faulty bulb 2. Faulty connectors 3. Faulty switch or sender 4. Faulty harness 5. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the switch, sender and their connectors.

A. Disconnect the harness at the sender or switch and short signal out to ground. If the warning lamp is illuminated, continue to step 2.

B. If the warning lamp does not illuminate, continue to step 4.

2. Check the switch or sensor ground.

A. Measure the resistance of the switch or sender ground path and re--check the function. If the resistance indicated is less than 10 Ohms, remove and replace the switch or sender.

B. If the resistance indicated is greater than 10 Ohms, continue to step 3.

3. Check the switch or sender connector.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, locate the open circuit and repair or replace the harness as required.

4. Check for an open circuit.

A. Disconnect the instrument cluster connectors. Short the switch or sender signal out to ground. Measure the resistance between the instrument cluster connectors signal pin and ground. If the resistance indicated is greater than 10 Ohms, repair or replace the harness as required.

B. If the resistance indicated is less than 10 Ohms, continue to step 5.

5. Check the instrument cluster connectors.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay continue to step 6.

6. Check the warning bulb in the instrument cluster.

A. If a fault is indicated with the warning bulb, remove and replace the bulb.

B. If the bulb is okay, replace the instrument cluster.

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ERROR CODE 1 -- ENGINE OIL PRESSURE SENDER SHORT OR OPEN CIRCUIT Possible failure modes: 1. Faulty sender 2. Faulty harness 3. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the instrument cluster.

A. Turn the keystart OFF. Disconnect the oil pressure sender connector C003. Short the signal out between connector C003 pin B (G/K) and pin C (G/K). Turn the keystart ON. If error code 1 is still displayed, continue to step 2.

B. If error code 1 is not displayed and the oil pressure display indicates maximum, continue to step 3.

2. Check for an open or short circuit.

A. Turn the keystart OFF. Disconnect the instrument cluster connector C081. Check between connector: C003 pin B (G/K) and C081 pin 2 (G/K) C003 pin C (Y/S) and C081 pin 1 (Y/S) C003 pin A (G/W/B) and ground If an open or short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, remove and replace the instrument cluster.

3. Check for +5 Volts.

A. Turn the keystart ON. Measure the voltage between connector C003 pin B (G/K) and pin A (G/W/B). If the voltage indicated is not approximately +5 Volts, repair or replace the harness as required.

B. If the voltage is approximately +5 Volts, remove and replace the oil pressure sender.

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ERROR CODE 2 -- ENGINE OIL PRESSURE SENDER SHORT TO +VE VOLTAGE Possible failure modes: 1. Faulty connector 2. Faulty harness 3. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for a short to +12 Volts.

A. Disconnect the oil pressure sender connector C003. Turn the keystart ON. Measure the voltage between connector: C003 pin A (G/W/B) and ground C003 pin B (G/K) and ground C003 pin C (Y/S) and ground If the voltages indicated are approximately +5 Volts at pin B (G/K) and 0 Volts at the remaining pins, continue to step 2.

B. If the voltages indicated are not okay, continue to step 3.

2. Check the instrument cluster connector C081.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, remove and replace the instrument cluster.

3. Check for a short to +12 Volts.

A. Disconnect the engine harness connector C001. Turn the keystart ON. Measure the voltage between connector: C001 pin 18 (G/W/B) and ground C001 pin 17 (G/K) and ground C001 pin 16 (Y/S) and ground If the voltages indicated are approximately +5 Volts at pin 17 (G/K) and 0 Volts at the remaining circuits, repair or replace the harness between the connectors C001 and C003 as required.

B. If the voltages indicated are okay, repair or replace the harness between the connectors C001 and C081 as required.

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ERROR CODE 3 -- FUEL TANK LEVEL SENDER SHORT TO GROUND ERROR CODE 4 -- FUEL TANK LEVEL SENDER OPEN CIRUIT OR SHORT TO +VE VOLTAGE Possible failure modes: 1. Faulty connector 2. Faulty fuel tank level sender 3. Faulty harness 4. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the fuel tank level sender connector C022.

A. Ensure the connectors are connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, continue to step 2.

2. Check for an open circuit.

A. Disconnect the connector C022 and the instrument cluster connector C079. Measure the resistance between connector C022 pin 2 (W/G/B) and ground. If the resistance indicated is greater than 10 Ohms, repair or replace the harness as required.

B. If the resistance is less than 10 Ohms, continue to step 3.

3. Check the fuel tank level sender for a short to ground.

A. If a short to ground is indicated on either terminal remove sender, repair or replace as required and ensure there is no short to ground on reassembly.

B. If a short to ground is not indicated, continue to step 4.

4. Check the fuel tank level sender operation.

A. Measure the resistance between the terminals. If the resistance indicated is not between 30 Ohms at full and 250 Ohms at empty, remove and replace the sender.

B. If the resistance indicated is okay, continue to step 5.

5. Check for a short to ground.

A. Check between connector C022 pin 1 (G/B) and ground. If a short to ground is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 6.

6. Check for an open circuit.

A. Measure the resistance between connector C022 pin 1 (G/B) and C079 pin 9 (G/B). If the resistance indicated is greater than 10 Ohms, repair or replace the harness as required.

B. If the resistance indicated is less than 10 Ohms, continue to step 7.

7. Check the istrument cluster connector C079.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, remove and replace the instrument cluster.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE 5 -- WHEEL SPEED SENDER SHORT CIRCUIT ERROR CODE 6 -- WHEEL SPEED SENDER OPEN CIRCUIT Possible failure modes: 1. Faulty connector 2. Faulty harness 3. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for EDC error code 49 also displayed.

A. If 49 is displayed, continue to this test.

B. If the error code re--occurs, continue to step 2.

2. Check the radar speed sensor selector connector C237.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 3.

3. Check for a short or open circuit.

A. Disconnect connector C237 and the instrument cluster connector C081. Check between connector C081 pin 6 (Y/G) and C237 pin 2 (Y/G). If an open or short circuit is indicated, repair or replace the harness as required.

B. If the harness is okay, continue to step 4.

4. Check for a short or open circuit.

A. Disconnect the general control module (GCM) connector C127. Check between connector C127 pin 8 (Y/G/S) and C237 pin 2 (Y/G). If a short or an open circuit is indicated, repair or replace the harness as required.

B. Reconnect all the connectors. Check for errors 5 or 6 being displayed. If the errors are still displayed, remove and replace the instrument cluster.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE 7 -- COOLANT TEMPERATURE SENDER SHORT CIRCUIT Possible failure modes: 1. Faulty coolant temperature sender 2. Faulty harness 3. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check for error code 7 being displayed.

A. Disconnect the coolant temperature sensor connector C012. Ensure the end of the wire in the connector C012 is not contacting any metallic part. Turn the keystart ON. If error code 7 is not being displayed, remove and replace the coolant temperature sender.

B. If error code 7 is still being displayed, continue to step 2.

2. Check for a short circuit.

A. Disconnect connector C012 and the instrument cluster C079. Measure the resistance between connector C079 pin 1 (G/U) and C079 pin 2 (B). If the resistance indicated is less than 5000 Ohms, repair or replace the harness as required.

B. If the resistance indicated is greater than 5000 Ohms, remove and replace the instrument cluster.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE 8 -- EDC SERIAL LINK FAILURE. COMMUNICATIONS ERROR ERROR CODE 9 -- TRANSMISSION SERIAL LINK FAILURE. COMMUNICATIONS ERROR The electronic management unit (EMU) and the general control module (GCM) send their display information over a two wire serial communications connection.

Communications error codes 8 and 9 will occur when the message received by the instrument cluster is incorrect.

This may be caused by an intermittent connection on the signal wires (LN/O or LN/TQ). If these errors are accompanied by reports of intermittent or blank displays in the transmission or hitch position areas, then the circuit wires should be checked for open circuits, short circuits and intermittent connections.

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ERROR CODE 10 -- MEMORY RETENTION ERROR OF BATTERY CALIBRATION CONSTANT Possible failure modes: 1. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the voltage display on the instrument cluster.

A. Measure the battery voltage. If the battery voltage indicated shows a difference of greater than 2 Volts from the voltage displayed on the instrument cluster, remove and replace the instrument cluster.

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ERROR CODE 11 --

MEMORY RETENTION ERROR OF OPERATOR SETTING FOR SLIP ALARM, SLIP ZERO REFERENCE CONSTANT, IMPLEMENT WIDTH AND SERVICE HOURS

Possible failure modes: 1. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the programme constants listed above using the instructions detailed in the tractor performance monitor (TPM) set--up mode.

A. Re--programme the TPM set--up mode constants. Turn the keystart OFF. Turn the keystart ON and re--check the programmed values. If the values indicated are incorrect, remove and replace the instrument cluster.

SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10 ERROR CODE 12 --

1783

COOLANT TEMPERATURE SENDER OPEN CIRCUIT OR SHORTED TO A + VE VOLTAGE

Possible failure modes: 1. Faulty connector 2. Faulty coolant temperature sender 3. Faulty harness 4. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the coolant temperature sender connector C012.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, continue to step 2.

2. Check for error code 7 being displayed.

A. Disconnect connector C012 and short out to ground. If error code 7 is displayed, continue to step 3.

B. If error code 7 is not being diplayed, continue to step 4.

3. Check the coolant temperaure sender.

A. Measure the resistance between the coolant temperature sender terminal and body. If the resistance is not between 650 Ohms (hot) and 6000 Ohms (cold), remove and replace the sender.

B. If the resistance indicated is okay the sender has a poor ground to engine contact, remove the sender, clean the thread contact area and refit.

4. Check for an open circuit.

A. Disconnect the Instrument Cluster connector C079. Short out connector C012 to ground. Measure the resistance between C079 pin 1 (G/U) and C079 pin 2 (B). If the resistance indicated is greater than 5 Ohms, repair or replace the harness as required.

B. If the resistance indicated is less than 5 Ohms, continue to step 5.

5. Check connector C079.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connector is okay, remove and replace the instrument cluster.

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SECTION 55 -- ELECTRICAL SYSTEMS -- CHAPTER 10

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ERROR CODE 13 -- ENGINE SHUT DOWN OUTPUT SHORT TO A +VE VOLTAGE Possible failure modes: 1. Faulty connector 2. Faulty fuel shut off relay 3. Faulty harness 4. Faulty instrument cluster Solution: NOTE: When the cause of the error code has been rectified, clear the error code and test the system for normal operation.

1. Check the fuel shut off relay.

A. Remove the Fuel Shut Off Relay (KF) from the fuse panel. Measure the resistance between terminals 85 and 86 of the relay. If the resistance is less than approximately 95 Ohms, replace the relay.

B. If the resistance is approximately 95 Ohms, continue to step 2.

2. Check for a short circuit.

A. Remove the instrument cluster and disconnect the instrument cluster connector C081. With the relay removed, measure the resistance between connector C081 pin 11 (O/R) and C081 pin 12 (O/U/B). If a short circuit is indicated, repair or replace the harness between connector C081 and the Fuel Shut Off Relay holder (KF) as required.

B. If a short circuit is not indicated, continue to step 3.

3. Check the instrument cluster connector C081.

A. Ensure the connector is connected, not damaged, the pins are in the correct position and that the fit is tight. Repair or replace as required.

B. If the connectors are okay, replace the instrument cluster.

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