CID
Component identifiers (CID¹) Module Identifier (MID²) Traction Control System Module Identifier (MID² 028) Component
168
Electrical System Voltage
248
Data Link
263
Sensor Supply Voltage
270
Harness Code
296
Transmission ECM
605
Left Front Speed Sensor
606
Right Front Speed Sensor
607
Left Rear Speed Sensor
608
Right Rear Speed Sensor
609
Left Front Brake Solenoid
610
Right Front Brake Solenoid
611
Left Rear Brake Solenoid
612
Right Rear Brake Solenoid
613
On/Off Solenoid
615
Articulation Sensor
616
Test/Enable Switch
653
Traction Control System ECM
687
Options Code Plug
CID
Function
Payload Electronic Control Module
Contact Position
-1.1 ± 0.8 °C (30 ± 1.4 °F)
2.2 ± 0.8 °C (36 ± 1.4 °F)
Normally Open
3E-6449
Coolant Temperature (Start Aid)
38 ± 3 ºC (100 ± 5 ºF)
27 ºC MIN (81 ºF MIN)
Normally Closed
3E-6450
Primary Steering Pressure Secondary Steering Pressure
1200 kPa MAX (174.0 psi MAX)
700 ± 100 kPa (102 ± 14.5 psi)
A-B Normally Open A-C Normally Closed
62 - 95 kPa (9.0 - 13.8 psi)
62 - 95 kPa (9.0 - 13.8 psi)
Normally Closed
129 ± 4 °C (264 ± 7 °F)
96 °C MIN (205 °F MIN)
Normally Open
To Close: 102 ± 3 °C
From Closed To Open: 90 °C MIN
Normally Open³
275 - 1750 kPa¹ (39.9 - 253.8 psi) 107 ± 3 ºC (225 ± 5 ºF)
95 ºC MIN (203 ºF MIN)
65 ± 3 ºC (149 ± 5 ºF)
58 ºC MIN (136 ºF MIN)
Normally Open
10,700 kPa MAX (1552 psi MAX)
8960 ± 537 kPa (1300 ± 78 psi)
A-B Normally Open A-C Normally Closed
Engine Oil Pressure 4
Torque Converter Oil Temperature
4
Hydraulic Oil Temperature
104-3008 114-5333
A/C (High/Low) Pressure
4
Coolant Temperature
118-5144 155-8998
Axle Oil Cooler Temperature
175-3244
Brake Oil Pressure
Normally Open² Normally Open
¹ With Increasing pressure the closed condition can be maintained up to 2800 kPa (406 psi), with decreasing pressure the closed condition can be maintained down to 170 kPa (25 psi). ²Contact position at the contacts of the harness connector. ³ A conductive path must exist between the threads and the machine ground. 4 This part has an integral temperature sender. See also Resistor, Sender and Solenoid Specifications.
Component
254
Deactuate
A/C Thermostat
7W-1238
Payload Control System Module Identifier (MID² 74) Electrical System Voltage
Actuate
3E-5464
104-3007
168 350
Position Sensor (Lift Linkage)
364
Pressure Sensor (Lift Cylinder Head End)
769
Pressure Sensor (Lift Cylinder Rod End)
817
Battery (Internal Backup)
820
Keypad Data Link Incorrect
CID
Part No.
Off Machine Switch Specification
CST Autoshift Control Module Identifier (MID² 081) Component
Wire Description
Wire Number
Wire Color
Wire Number
Wire Color
101
RD
Power Circuits Battery (+)
509
WH
Radio Speaker - Left (Common)
102
RD
Running Lamp Breaker
105
RD
Key Switch
511
BR
Radio Speaker - Right
512
GN
Radio Speaker - Right (Common)
108
RD
109
RD
24V To 12V Converter Memory Output
513
OR
A/C Compressor /Refrigerant Pressure Switch
Alt Output (+)/Main Brkr/Alt Brkr/Start Relay
515
GY
110
Blower Motor (Hi)
GN
Turn Signal Flasher
516
GN
Blower Motor (Med)
112
PU
Main Power Relay Output
517
BU
Blower Motor (Low)
114
RD
Warning Horn (Forward)
518
OR
Hazard Flasher To Switch
115
RD
Running Lamp Breaker/Spare Circuit
521
YL
A/C Switch To Refrigerant Switch
116
BR
Rear Floods
522
WH
A/C Clutch To Thermostat Switch
117
RD
Main Power Relay
537
GN
Turn Signal Switch To Flasher
118
GY
Wipers
538
BR
Hazard Indicator
120
YL
24V To 12V Converter
539
BU
Turn Signal Indicator Basic/Right
Description
Description Accessory Circuits (Continued)
168
Electrical System Voltage
190
Engine Speed Sensor
191
Transmission Output Speed Sensor
346
Ride Control Relay
367
Ride Control Switch
122
RD
Backup Alarm/Miscellaneous Power
540
WH
Turn Signal Indicator Left
421
Load Check Solenoid
123
WH
Gauges/Indicator Lights
567
WH
A/C Switch Jumper
621
Downshift Switch
124
GN
HVAC
571
OR
Ride Control Relay Coil
641
Forward High Solenoid
125
OR
Axle Oil Cooler
A514
YL
CST Control To Park Brake Alarm Relay Coil
642
Reverse Solenoid
126
PK
CST Autoshift Control/Shifter
A538
OR
Rear Window Defroster (Resistive Element)
643
Forward Low Solenoid
127
OR
Floods
A541
PU
Flasher To Indicator Lights
644
Speed 1 Solenoid
128
PK
Kickout/Ride Control
A576
GN
Breaker To Compressor (Air Seat)
129
BU
Cigar Lighter
C529
GY
Lift Head End Pressure Sensor
645
Speed 2 Solenoid
130
RD
Stop Lamps
C530
BU
646
Speed 3 Solenoid
133
OR
4th Function Diverter
Lift Position Sensor Lighting Circuits
650
Harness Code
135
BU
24V To 12V Converter Switched Output
603
PK
Rotary Beacon
668
Transmission Shift Lever
136
GN
Secondary Steering/Action Alarm
604
OR
Stop Lamp
683
Parking Brake Alarm
138
GN
Payload Control System (PCS)
605
YL
Turn Lamp - Left
687
Option Code
140
BU
Rear Window Defrost
606
GY
Turn Lamp - Right
144
GN
Heated Seat/Beacon
608
GN
Flood Lamp - Rear Cab
167
OR
Transmission Control System (TCS)
610
OR
Head Lamp (Basic)
168
GN
Quick Coupler
611
PU
Head Lamp (High)
175
RD
Hood Relay Control
614
PU
Park/Tail/Panel Lamp
188
WH
PCS Keypad
615
YL
Flood Lamp - Forward Cab
189
WH
Air Intake Heater (AIH) Ground Circuits
617
BR
LH Tail/Clearance Lamps
619
GN
Head Lamp (Low)
Machine Security System Control Module Identifier (MID² 124) CID
Component
168
Electrical System Voltage
248
Data Link
254
Real Time Clock
200
BK
Main Chassis
630
GY
Flood Lamp Rear (ATCH)
817
Battery (Internal Backup)
202
BK
Transmission Control
633
BU
ATCH Lighting Circuit
1391
Output Driver #1
250
BK
Payload Monitor - Customer Ground
691
GY
1392
Output Driver #2
251
BK
Payload Monitor - System Ground
Warning Lights To Breaker Control Circuits
276
BK
Transmission Control Ident Code 0
700
PK
Hyd Lock Det Override Switch To Imp Intrlk Relay
277
BK
Transmission Control Ident Code 1
702
OR
Transmission Brake Switch Jumper
278
BK
Transmission Control Ident Code 2
709
OR
Sensor Power Supply
279
BK
Transmission Control Ident Code 3
710
GN
Transmission Speed Sensor
A219
BK
TCS Control Ground
720
PU
Transmission Neutralizer Sensor
A221
BK
Transmission Control Options Code 0
727
GN
Secondary Steering Relay Coil
A222
BK
Transmission Control Options Code 1
751
GN
Transmission Clutch No 1 - FWD High
A223
BK
TCS Control Harness Code 0
752
YL
Transmission Clutch No 2 - Rev
A224
BK
TCS Control Harness Code 1
754
BU
Transmission Clutch No 3 - FWD Low
A225
BK
TCS Control Harness Coed 2
755
OR
Transmission Clutch No 4 - Speed 1
A226
BK
TCS Control Harness Code 3
761
GY
Lift Positioner Switch
A232
BK
Transmission Control Options Code 2
762
YL
Bucket Positioner Switch
A250
BK
Battery (-)
779
WH
Quick Coupler (Engage Solenoid)
A279
BK
TCS Control Harness Code 4
E701
PK
Ride Control Switch (Auto)
A280
BK
TCS Control Harness Code 5
F748
WH
Ride Control Switch (On)
A281
BK
TCS Control Harness Code 6
F765
BR
Park Brake switch
A282
BK
Switch/Sensor Ground Basic Machine Circuits
F766
WH
Kickout Override Switch (NO)
G728
YL
Kickout Override Switch (NC)
¹ The CID is a diagnostic code that indicates which component is faulty. ² The MID is a diagnostic code that indicates which electronic control module diagnosed the fault.
FMI No.
Failure Mode Identifiers (FMI)¹ Failure Description
0
Data valid but above normal operational range.
1
Data valid but below normal operational range.
2
Data erratic, intermittent, or incorrect.
3
Voltage above normal or shorted high.
4
Voltage below normal or shorted low.
5
Current below normal or open circuit.
6
Current above normal or grounded circuit.
7
Mechanical system not responding properly.
8
Abnormal frequency, pulse width, or period.
9
Abnormal update.
10
Abnormal rate of change.
11
Failure mode not identifiable.
12
Bad device or component.
13
Out of calibration.
14
Parameter failures.
15
Parameter failures.
16
Parameter not available.
17
Module not responding.
18
Sensor supply fault.
19
Condition not met.
20
Parameter failures.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
Related Electrical Service Manuals Title
Form Number
Alternator: Atch: Electric Starting Motor: Consist: Consist: Payload Control System:
9W-3043 107-7977 106-8558 106-8557 106-8559 112-1572
Traction Control System:
187-5030
SENR6719
197-5461
SENR1218
Transmission Electronic Control System: Machine Security System Control:
160-5746
SENR3685 SENR4757 SENR3859 SENR3581 SENR6614
RENR2462
301
BU
Shutdown Solenoid (Start Coil)
G742
GN
Alarm/Disarm Relay To Diode
304
WH
Starter Solenoid Start Terminal
G750
BU
Transmission Control Forward Switch
306
GN
Starter Relay Coil (+)
G755
GY
Transmission Control Reverse Switch
307
OR
Key Switch Start Position
G760
WH
Transmission Control (Second Gear)
308
YL
Main Power Relay Coil (+)
G761
YL
Transmission Control (Third Gear)
310
PU
Start Aid Switch To Start Aid Solenoid
G762
BR
Transmission Control (Fourth Gear)
311
WH
Start Aid Sol To Start Aid Cool Temp Switch
G763
PU
Transmission Control Neutral Switch
321
BR
Backup Alarm
G768
GN
Transmission Control (First Gear)
322
GY
Warning Horn (Forward)
G787
GN
Transmission Control Remote Forward Switch
326
PU
Key Switch "C" Term
G788
YL
Transmission Control Remote Reverse Switch
331
OR
Backup Alarm Relay Coil
G797
BU
Switch To Relay Coil
334
BU
AIH Relay Coil (+)
818
BR
Serial Data (Transmit)
373
GN
AIH Switch To AIH Timer
819
GY
Serial Data (Receive)
397
OR
Hood Motor Lower
E800
GN
Seat Alarm To Diode Pack
398
BU
Hood Motor Raise
F846
PU
LED Driver 1
A300
GN
Hood Control Lower
F853
BR
Travel Speed
A301
WH
Hood Control Raise Monitoring Circuits
F880
BR
Diode Block To Relay Contact
G878
GY
Traction Control System (TCS) Calibrate
403
GN
Alternator (R) Term
900
PU
Transmission Clutch No 5 - Speed 2
404
YL
Hydraulic Oil Temperature Switch
901
WH
Transmission Clutch No 6 - Speed 3
405
GY
Engine Oil Pressure Switch
944
OR
Data Link + (CAT)
406
PU
Engine Coolant Temperature Switch
945
BR
Data Link - (CAT)
407
PK
T/C Oil Temperature Switch
963
GN
Bucket /Fork Position Detent Coil
417
GY
Primary Steering Pressure Switch (NO)
964
BU
Fork Position Select
419
YL
Operator Monitor Parking Brake
973
BR
CST Autoshift - Auto/Manual Switch
441
OR
Engine Coolant Temperature Sender
975
WH
CST Autoshift - Solenoid Return
442
GY
Hydraulic Oil Temperature Sender
976
OR
Ride Control Solenoid
443
YL
T/C Oil Temperature Sender
978
GN
CST Autoshift - Slow Mode Switch 1
447
PK
Fuel Level Sender
987
WH
Diverter Solenoid
449
BU
Speedometer Sender
C904
GN
Relay To Relay
450
YL
Engine Speed Sensor
C920
GY
Action Lamp - Control
453
PK
Secondary Steering Pressure Switch (NO)
E923
PK
Front Left Wheel Proportional Solenoid
483
BR
Brake Oil Pressure Switch (NC)
E924
YL
Front Right Wheel Proportional Solenoid
484
YL
Primary Steering Pressure Switch (NC)
E925
OR
Rear Left Wheel Proportional Solenoid
A451
PU
Operator Monitor Steering Oil Temperature
E926
BU
Rear Right Wheel Proportional Solenoid
C444
YL
Alternator D+ Term
C470
BR
Relay Contact To Alarm
E927
GN
Test Mode Switch (NC)
E928
WH
Test Mode Switch (NO)
C471
GN
Relay Contact To Indicator Lamp
E929
GY
Articulation Angle Sensor
E416 E417
PU
PCS Lift Cylinder Pressure Sensor
E930
BU
Front Axle Pilot Solenoid
OR
Park Brake Switch (NC)
E932
PK
Front Right Wheel Speed Sensor
E419
BU
Relay Contact To Seat Alarm
E933
YL
Front Right Wheel Speed Sensor
G454
PK
Axle Oil Cooler Switch To Clutch Solenoid
E934
OR
Rear Left Wheel Speed Sensor
G476
WH
Traction Control Action Indicator
E935
GN
Rear Right Wheel Speed Sensor
G486
GN
Not Used Accessory Circuits
E936
WH
TCS Solenoid Return
E955
OR
Keypad Data
500
BR
Wiper - Front (Park)
G948
BR
Implement Detent Lo Switch (NO)
501
GN
Wiper - Front (Low)
L906
YL
Diagnostic Enable
502
OR
Wiper - Front (Hi)
P914
GN
Used For 924G And 928G Only
503
BR
Wiper - Rear (Park)
P915
PK
Used For 924G And 928G Only
504
YL
Wiper - Rear (Low)
P916
OR
CST Shifter Neutral Switch Signal
505
BU
Wiper - Rear (Hi)
P976
BR
Quick Coupler (Disengage Solenoid)
506
PU
Washer - Front
T901
YL
MSS Exciter Coil In
507
WH
Washer - Rear
T902
PK
MSS Exciter Coil Out
508
PU
Radio Speaker - Left
Part No.
Resistor, Sender and Solenoid Specifications Component Description
3E-6332
Solenoid:
Start Aid
3E-8575
Solenoid:
Quick Coupler
8C-3663
Solenoid:
Shutdown
9G-1950
Resistor:
A/C Blower Motor Heater Blower Motor
104-3007²
Sender:
Torque Converter Oil Temperature
54.4 °C (130 °F): 6565 ± 695 115.6 °C (240 °F): 526 ± 61
104-3008²
Sender:
Hydraulic Oil Temperature
54.4 °C (130 °F): 6565 ± 695 115.6 °C (240 °F): 526 ± 61
106-5122
Solenoid:
118-5144²
Sender:
6.0 24.9 ± 0.4
A/C Clutch Coolant Temperature
54.4 °C (130 °F): 6565 ± 695 115.6 °C (240 °F): 526 ± 61 83.7 ± 4
7.75 ± 1
124-3052
Solenoid:
TCS Left Front Proportional Valve TCS Right Front Proportional Valve TCS Left Rear Proportional Valve TCS Right Rear Proportional Valve
186-1526
Empty: 240 to 250 Full: 28 to 33
Solenoid:
On/Off Pilot
32.6 ± 1.6
Solenoid:
Axle Oil Cooler Clutch
9.4 ± 5.0
Solenoid:
CST Forward High CST Reverse CST Forward Low CST Speed 1 CST Speed 2 CST Speed 3
31 ± 3
Component Location
Schematic Machine Location Location D - 15 Alarm - Backup 3 G-8 Alarm - Front Secondary Steering A E - 15 Alternator 4 E - 15 Alternator - ATCH 4 D-8 Assembly - Lamp A G-8 Assembly - Lamp A F - 14, F - 15 Battery - 12V 5 E - 14 Block - Terminal 7 F - 10 Breaker - Air Seat C B - 14 Breaker - Alternator 47 B - 14 Breaker - Auxiliary 47 B - 14 Breaker - Hood 47 F - 10 Breaker - Lamp C B - 14 Breaker - Main C E-7 Cigar Lighter A I - 11 Coil - Exciter A A-7 Control - Autoshift Electronic (CST) 7 A-4 Control - FNR 7 A - 14 Control - Hood Relay 8 H - 10 Control - MSS Electronic 7 E-4 Control - Payload Electronic (PCS) 12 B-6 Control - Secondary Steering Electronic 7 A - 12 Control - Traction Electronic (TCS) 9 G - 10 Converter - 24V/12V 34 F - 12 Defroster - Rear 17 H-6 Diode Block Assembly A I - 13 Diodes - Turn Signal A F-6 Flasher A I - 14 Flasher - Arc Suppressor A 4 I-13 A Flasher I-7 Flasher³ A E - 10, F - 10 Fuses C G-4 Gauge - Coolant Temperature A I - 12 A Gauge - Coolant Temperature4 F-4 Gauge - Fuel Level A 4 H - 12 A Gauge - Fuel Level G-5 Gauge - Hydraulic Temperature A I - 12 A Gauge - Hydraulic Temperature4 F-4 A Gauge - Speedometer 4 I -12 A Gauge - Speedometer F-5 A Gauge - Torque Converter Oil Temperature 4 H - 12 A Gauge - Torque Converter Oil Temperature A - 12 15 Ground - Boss (Frame) B - 12 Ground - Cab Boss 7 D - 15 4 Ground - Engine Block (From Alternator) E - 14 Ground - Engine End Frame 32 H - 11 Harness - Product Link 7 E - 13 Heater - Air Intake 10 F- 11 Heater - Cab 18 H-8 Indicator - Audible A 4 I - 13 A Indicator - Bucket 4 H - 13 A Indicator - High Beam I - 13 A Indicator - LH Turn4 H - 13 A Indicator - RH Turn4 F-6 Indicator - Right Turn A F-6 Indicator - Hazard A F-6 Indicator - High Beam A G-6 Indicator - Left Turn A D-4 Keypad - PCS 12 B-8 Lamp - Action 7 D - 15 Lamp - COSA License Plate 3 I - 11 LED - BI Color A D-4 Module - TCS Display 13 E-3 Motor - Front Washer 15 F-2 Motor - Front Washer³ 15 I-2 Motor - Front Washer¹ 15 E-4 Motor - Front Wiper 16 E - 11 Motor - Heater/Air Conditioner Blower 18 A - 14 Motor - Hood Actuator 1 E-3 Motor - Rear Washer 15 F-2 Motor - Rear Washer³ 15 I-3 Motor - Rear Washer¹ 15 F - 12 Motor - Rear Wiper 17 A-6 Motor - Secondary Steering 19 E - 14 Motor - Starter 14 4 H - 13 A Panel - FNR LED G-4 Panel - FNR LED A I-8 Plug - 938G Machine Harness Code 7 B - 10 Plug - 938G TCS Code 7 I-7 Plug - IT38G Machine Code 7 B - 10 Plug - IT38G TCS Code 7 A-8 Plug - Machine Harness Code 7 I -11 Plug - MSS Service 7 A-8 Plug - Options 7 I-7 Plug - Ride Control 7 A - 12 Plug - TCS Assembly Test 7 A - 12 Plug - TCS Brake Bleed 7 B - 11 Plug - Calibrate 7 G - 11,G-13 Radio A E - 13 Relay - Air Inlet Heater (AIH) 20 D - 11 Relay - Alarm Disarm C E - 11 Relay - Alarm Disarm C D - 10 Relay - Backup Alarm C D - 10 Relay - FNR C D - 10 Relay - Implement Interlock C F - 10 Relay - Main Power C D - 10 Relay - Park Brake Alarm C B - 13 Relay - Rear Flood C D - 10 Relay - Ride Control C D - 10 Relay - Seat Alarm C A-6 Relay - Secondary Steering Motor C B - 14 Relay - Start C Machine locations are repeated for components located close together. A = Located on or near dash panel. B = Located on or near steering column.
Normally closed switch that will open with an increase of a specific condition. No circle indicates that the wire cannot be disconnected from the component.
Component Resistor - Heater/Air Conditioner Sender - Coolant Temperature Sender - Fuel Level Sender - Hydraulic Oil Temperature Sender - Torque Converter Oil Temperature Sensor - Engine Speed Sensor - Left Front Wheel Speed¹ Sensor - Left Front Wheel Speed³ Sensor - Left Front Wheel Speed² Sensor - PCS Lift Cylinder Head End Pressure² Sensor - PCS Lift Cylinder Head End Pressure³ Sensor - PCS Lift Position² Sensor - PCS Lift Position³ Sensor - Right Front Wheel Speed² Sensor - Right Front Wheel Speed³ Sensor - Right Front Wheel Speed¹ Sensor - TCS Articulation Angle Position Sensor - TCS Left Rear Axle Speed Sensor - TCS Right Rear Axle Speed Sensor - Transmission Speed Service Meter Shifter - CST Solenoid - (1) CST Forward High Solenoid - (2) CST Reverse Solenoid - (3) CST Forward Low Solenoid - (4) CST Speed 1 Solenoid - (5) CST Speed 2 Solenoid - (6) CST Speed 3 Solenoid - 4th Function Diverter Valves Solenoid - A/C Clutch Solenoid - Auxiliary Valve Solenoid - Axle Oil Cooler Clutch Solenoid - Float Valve Solenoid - Lift Positioner Valve Solenoid - On/Off Pilot Solenoid - Quick Coupler³ Solenoid - Quick Coupler² Solenoid - Ride Control Valves² Solenoid - Ride Control Valves³ Solenoid - Ride Control Valves¹ Solenoid - Shutdown Solenoid - Start Aid Solenoid - TCS Left Front Proportional Solenoid - TCS Left Rear Proportional Solenoid - TCS Right Front Proportional Valve Solenoid - TCS Right Rear Proportional Valve Solenoid - Tilt Positioner Suppressor - Arc (A/C Clutch Coil) Suppressor - Arc (Alarm Disarm Relay) Supressor - Arc (Quick Coupler Solenoid)³ Suppressor - Arc (Quick coupler Solenoid)² Suppressor - Arc (Sec. Steering Motor Relay) Switch - 4th Function Diverter Switch - A/C Compressor Switch - A/C Refrigerant (Pressure) Switch - Air Inlet Heater Switch - Axle Oil Cooler Temperature Switch - Beacon Switch - Blower Switch - Brake Oil Pressure Switch - Brake Oil Pressure Switch - Brake Oil Pressure Switch - Bucket Fork Select Switch - Bucket Positioner Switch - Bucket Positioner Switch - Bucket Positioner Switch - Defrost Switch - Dimmer Switch - Disconnect Switch - Downshift Switch - Engine Oil Pressure Switch - Fork Positioner Switch - Forward Horn Switch - Front Intermittent Wiper Switch - Hazard Switch - Hood Actuator Switch - Hydraulic Lock Detent Override Switch - Key Start Switch - Kickout On/Off Switch - Lamp Switch - Lift Positioner² Switch - Lift Positioner³ Switch - Lift Positioner¹ Switch - Parking Brake Switch - Primary Steering Oil Pressure Switch - Quick Coupler Switch - Rear Wiper Switch - Remote FNR Switch - Ride Control Switch - Secondary Steering Manual Switch - Secondary Steering Pressure Switch - Service Brake Switch - Start Aid Switch - Start Aid Coolant (Temperature) Switch - TCS Test/Enable Switch - Thermostat Switch - Transmission Auto/Manual Switch - Transmission Neutral Switch - Transmission Neutralizer Switch - Turn Signal 4 Switch - Turn Signal Timer - Air Inlet Heater (AIH) C = Located on or near relay/fuse panel. D = Located on or near right console.
Schematic Location E - 11 D - 15 E - 15 C - 14 C - 13 C - 14 B-2 D-1 G-1 B-2 E-1 C-2 E-1 B-2 D-1 G-1 A-4 I-6 I-6 C - 13 G-6 H-5 D - 13 D - 13 D - 13 E - 13 E - 13 E - 13 H-1 C - 15 A-8 D - 14 A-9 B-9 I-4 F-2 B-2 C-2 F-1 I-1 C - 15 E - 13 I-5 I-5 I-5 I-5 B-9 C - 15 G - 10 G-2 B-2 A-6 E-8 F-8 C - 15 F-7 A - 14 F-7 F-9 D-3 F-2 I-3 E-8 C-2 E-1 H-1 F-8 F-6 F - 14 B-9 C - 14 H-1 F-6 D-7 G-7 A - 14 F-8 F-6 E-8 H-6 C-2 E-1 H-1 G- 11 A-6 F-8 C-7 B-8 E-8 D-7 A-6 D-3 D-8 D - 15 E-8 E - 11 D-8 C-3 F-7 F-5 H - 15 G-8 ¹IT38G ²938G
This indicates that the component has a wire connected to it that is connected to ground.
Reed Switch - A switch whose contacts are controlled by a magnet. A magnet closes the contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
938G Wheel Loader IT38G Integrated Toolcarrier Electrical System
¹ At room temperature unless otherwise noted. ² This part has an integral temperature switch. See also Off Machine Switch Specification.
Component
Normally open switch that will close with an increase of a specific condition (temp-press-etc.). The circle indicates that the component has screw terminals and a wire can be disconnected from it.
This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.
Fuel Level
168-6452
Circuit Breaker Symbol
Flow Symbol
Level Symbol
Temperature Symbol
17.6 ± 0.6
Solenoid:
152-8385
Pressure Symbol
Overall 2.0 ± 0.1 Tap 1.0 ± 0.05
122-6344
Sender:
T
Latch Coil 1.55 ± 0.15 Unlatch Coil 10.3 ± 1.03
Auxiliary Valve Float Valve Lift Positioner Valve Tilt Positioner Valve
204-3403
Electrical Schematic Symbols And Definitions
RENR4326-01 November 2001
Resistance (Ohms)¹
Machine Location D 35 36 37 38 39 24 24 24 21 21 22 22 26 26 26 23 25 27 39 A B 31 31 31 31 31 31 21 6 D 44 D D 30 33 33 21 21 21 28 29 30 30 30 30 D 6 7 33 33 19 D D 6 A 47 A D 43 43 43 D D D D D B 32 D 40 D B A A 8 A B D A 33 33 33 45 42 D A D D A 42 41 A 44 A 18 D 46 46 A A A ³JAPAN 4
COSA
938G: 4YS1878-UP 6WS2579-UP 9HS801-UP
Sender- A component that is used with a temperature or pressure gauge. The sender measures the temperature or pressure. Its resistance changes to give an indication to the gauge of the temperature or pressure.
T
Relay (Magnetic Switch) - A relay is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close the switch part of the relay. Solenoid - A solenoid is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close a valve or move a piece of metal that can do work.
IT38G: 7BS900-UP 1CW391-UP
Harness And Wire Symbols Pin
Socket
Wire Color
A
Circuit Number Identification
AA
105-9344
Receptacle
Wire Gauge
Ground Connection
Fuse
1
325-PK-14
Single Wire Connector
Component Part Number
Wire, Cable, or Harness Assembly Identification
Plug
2
200-BK-14
Pin or Socket Number 1 2
Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
1 2
Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
© 2001 Caterpillar All Rights Reserved
Printed in U.S.A.
Connector Location Schematic Location
Machine Location
CONN 1
D - 15
39
CONN 2
I - 15, G - 6
A
CONN 3
I - 15, G - 6
A
CONN 4
A - 13, A - 14
47
CONN 5
A - 13
40
CONN 6
C - 13
48
CONN 7
E - 12, I - 9
18
CONN 8
D - 12, I - 9
52
D - 12
53
CONN 10
C - 12
7
CONN 11
C - 12
7
CONN 12
B - 12
7
Connector Number
5
25 32
35
4
58
14
38 37
44 6 40
17
41
23
16
56
46 D
52
47
42
B
A
31
18
48
39
28
8
33 21
36
1
24
30 15 51
10
20 3
57 34 45 29 43 50
C
55 12 13
53
27
22
7
26
19 9
CONN 9
Aux 12V Power
CONN 13
TCS Calibrate Plug
B - 11
7
CONN 14
A/C and Heater
E - 11
18
CONN 15
F - 11
2
CONN 16
F - 11
2
H - 11
7
H - 11, A - 5
7
CONN 17
Product Link Harness
CONN 18 CONN 19
H - 11
7
CONN 20
G - 10
34
CONN 21
G - 10
C
CONN 22
B - 10
7
A - 12, B - 10
7
B-9
7
A - 8, I - 7, I - 8
7
A - 8, I - 7
7
A-8
7
CONN 23
MSS Service Plug
TCS Code Plug
CONN 24
52 17
50
53
57
12
B 37 35
20 44 4
3
48
10
5
8
32 58
36
40
34
29
6
38
28
1
D 45
42
39 14
25 27
43 47
9
A 13
51 41
C 18 7 19
16
33 22
46 31 23
15
CONN 25
Machine Harness Code Plug
CONN 26
Options Plug
CONN 27
Service Tool (ECAP)
CONN 28
A-6
7
CONN 29
D-6
A
CONN 30
E- 6
A
CONN 31
E-6
A
CONN 32
E-6
A
CONN 33
I-6
59
CONN 34
A - 5, B - 3, F-3
7
CONN 35
A - 5, E - 3, G - 3
7
CONN 36
B - 5, F - 3, H - 3
7
CONN 37
D-4
12
CONN 38 1
21 55
Customer Data Connection
D-3
A
D-3
12
CONN 40
C-3
41
CONN 41
A - 3, E - 2, G - 3
57
CONN 42
B - 2, E - 2, G - 2
56
CONN 43
B - 2, F-3
60
CONN 44
C - 2, F -1, I - 2
55
CONN 45
D - 2, G - 2, I - 2, F - 2
55
CONN 46
D - 2, G - 2, I - 2, F - 2
55
CONN 47
H-2
55
CONN 39
30
24 26 56
Machine Harness Connector And Component Locations
CONN 48
Aux Start Receptacle
E - 14
58
CONN 49
Aux 12V Power Socket
G - 11
51
CONN 50
G - 10
50
CONN 51
I - 11
7
The connectors shown in this chart are for harness to harness connectors. Connectors that join a harness to a component are generally located at or near the component. See the Component Location Chart.