Wire Color
Description
Wire Number
Wire Color
Power Circuits
Description
Control Circuits (Continued)
101
RD
Battery (+)
852
GN
Cont Flow
102
BU
Head Lamp
854
PK
Boom Angle Switch
103
RD
Head Lamp
856
GN
Trigger Switch Parity
105
BR
Key Switch
863
BU
Cab/Platform Indicator Switch
108
RD
Battery (+) to Product Link
867
PU
PHS Joystick Grip Control
109
RD
Alt Output (+) Term
869
PU
Cont Flow Switch
111
RD
Machine Control Battery (+)
870
OR
Frame Interlock Relay
112
PU
Main Power Relay Output
874
GY
LSI Sensor
114
RD
Warning Horn (Forward)
892
BR
CAT Data Link (+)
116
BR
Frame Level/Tow
893
GN
CAT Data Link (-)
117
RD
Lift Pump Battery (+)
900
PU
Transmission Shift Solenoid
118
GY
Front Wiper Motor
901
WH
Transmission Shift Solenoid
119
PK
Wiper Motors Switch Power
902
BR
Transmission Shift Solenoid
121
YL
Accessory Socket
911
YL
Steering Mode Switch
122
BU
Fuel Injector Relay
913
BU
Front Wiper Switch
123
WH
Cold Start Relay
944
OR
CDL (-)
124
GN
AC Blower (Low)
945
BR
CDL (+)
125
OR
RH Tail Lamp
958
YL
Solenoid QC
127
OR
Boom Floods
959
WH
Arc Suppressor QC
128
PK
AC Blower (High)
975
WH
Solenoid Return
130
GN
Cab Floods 2
985
GY
Crab Steer Relay
131
BR
Cab Floods 1
986
OR
Circle Solenoid
133
OR
PHS
987
WH
Diverter Solenoid
135
BU
Radio Power
990
GN
Diverter Solenoid
136
GN
Auxiliary Circuit
991
WH
Shift Rail Sensor
141
PK
Seat
993
BR
Accelerator
144
GN
Beacon
994
GY
Oil Pressure Sensor
147
PU
Auxiliary Div Power
995
BU
Coolant Temperature Sensor
150
RD
Engine ECM Battery (+)
997
OR
Not Used
157
YL
Turn Indicator Switch Power
999
WH
Fuel Injector Pump
161
RD
Hazard Indicator
A700
OR
Accelerator
165
YL
Differential Lock Foot Switch
A701
GY
Not Used
Ground Circuits
A702
PU
Not Used
200
BK
Main Chassis
A703
BR
Not Used
205
BK
Chassis
A704
GN
Not Used
229
BK
Engine
A705
BU
Not Used
A278
BK
Fuel Pump Return
A706
GY
Not Used
Basic Machine Circuits
A707
PU
Not Used
304
CID
Component
0041
ECM (Electronic Control Module) 8 Volt DC Supply
0091
Throttle Position Sensor
0100
Engine Oil Pressure Sensor
0102
Boost Pressure Sensor
0105
Inlet Manifold Temperature Sensor
0110
Engine Coolant Temperature Sensor
0174
Component
Schematic Location
Machine Location
Component
Schematic Location
Machine Location
ACCELERATOR
G-6
1
SENSOR - COOLANT TEMPERATURE
D-8
E
ALARM - BACKUP
C-18
2
SENSOR - ENGINE SPEED
D-8
E
I-5
3
SENSOR - FRONT AXLE CENTER
E-2
11
ALARM - MONITOR
Connector Number
Schematic Location
Machine Location
M-18
A
CONN 1 CONN 2
L-18
A
B-18
51
ALTERNATOR
C-6
4
SENSOR - INTAKE MANIFOLD PRESSURE
D-8
E
CONN 3
ANTENNA - MSS TIRIS
G-6
C
SENSOR - INTAKE MANIFOLD TEMP
D-8
E
CONN 4
B-17
52
ANTENNA - RADIO
G-6
5
SENSOR - LSI STRAIN
E-17
39
ARC SUPRESSOR - CRAB
L-4
6
SENSOR - OIL PRESSURE
D-8
E
CONN 5
E-17
53
ARC SUPRESSOR - CIRCLE
L-4
6
SENSOR - REAR AXLE CENTER
B-17
40
CONN 6
E-15
52
BASE - ITT GRIP
F-5
B
SENSOR - SHIFT RAIL 1
D-11
F
CONN 7
L-15
29
Fuel Temperature Sensor
BATTERY 1
A-6
8
SENSOR - SHIFT RAIL 2
C-11
F
CONN 8
L-14
29
0247
SAE J1939 Data Link
BATTERY 2
A-6
8
SENSOR - SHIFT RAIL 3
C-11
F
CONN 9
D-13
53
0253
Personality Module
BEACON
M-17
9
SENSOR - TC OIL TEMPERATURE
C-11
F
CONN 10
E-13
53
0262
5 Volt Sensor Power Supply
BLOCK - FUSE
F-16
D
SENSOR - TC SPEED
E-10
F
0266
Crank Without Injection Input
BLOCK - FUSE
I-16
D
SENSOR - VLPM
E-8
F
CONN 11
F-13
53
0320
Speed/Timing Sensor
BLOCK - RELAY
G-16
D
SENSOR - XMSN INT SPEED 1
E-10
F
CONN 12
G-13
53
0342
Secondary Engine Speed Sensor
BLOCK - RELAY
J-16
D
SENSOR - XMSN OIL TEMPERATURE
D-10
F
CONN 13
M-13
54
0774
Secondary Throttle Position Sensor
BREAKER - ALTERNATOR
B-7
10
SENSOR - XMSN OUT SPEED
D-10
F
CONN 14
M-12
A
1627
Fuel Pump Relay
BREAKER - MAIN
C-7
10
SOCKET - ACCESSORY
L-15
29
CONN 15
M-12
A
1639
Machine Security System Module
BREAKER - STARTER
B-6
10
SOCKET - ADAPTER
M-17
A
E
SOLENOID - 1 REVERSE
A-11
F
F
Fuel Injection Pump
D-5
D-11
1684
BUS BAR
CONN 16
11
SOLENOID - 2 FORWARD
A-11
F
H-10
29
Engine Operation Mode Selector Switch
E-2
CONN 17
1743
COIL - FERRITE
E
SOLENOID - A/C COMPRESSOR
D-6
E
H-10
29
Cruise Control Disengage Switch
C-9
CONN 18
1894
CONTROL - ENGINE
G-5
B
SOLENOID - AUX DIV
I-1
41
E-9
55
Cruise Control Speed Toggle Switch
CONTROL - JOYSTICK
CONN 19
1895
CONTROL - MACHINE
E-3
12
SOLENOID - CIRCLE
L-4
6
CONN 20
L-8
48
CONTROL - MACHINE SECURITY SYSTEM
F-1
11
SOLENOID - CRAB
L-4
6
CONN 21
L-8
48
CONTROL - PHS VALVE SSV4
D-17
13
SOLENOID - DIFFERENTIAL LOCK
D-10
F
CONTROL - PRODUCT LINK
H-5
14
SOLENOID - FRAME LEVEL 1
D-2
42
CONN 22
L-8
48
CONTROL - SHIFTER
K-8
A
SOLENOID - FRAME LEVEL 2
C-2
42
CONN 23
C-7
E
CONN 24
D-6
56
CONN 25
D-6
E
B-5
57
CID
Machine Control (MID No. 039)
Component
0041
ECM (Electronic Control Module) 8 Volt DC Supply
0070
Parking Brake Switch
0096
Fuel Level Sensor
0110
Engine Coolant Temperature Sensor
0177
Transmission Oil Temperature Sensor
0262
5 Volt Sensor Power Supply
0271
Action Alarm
0368
Transmission Auto/Manual Switch
0444
Starter Motor Relay
0489
Trigger Switch (Aux.) of Joystick Control
0490
Implement Lockout Switch
0590
Engine Control Module
0629
Neutralizer Switch
LAMP - DOME
I-17
0668
Transmission Shift Lever
LAMP - HEAD LH
M-4
0702
Transmission Gear Lever Selector Sensor (Switch)
LAMP - HEAD RH
C-1
0750
Rear Steering Manual Switch
LAMP - REG PLATE 1
E-18
0811
Gauge Cluster #1
LAMP - REG PLATE 2
I-5
C
SOLENOID - IMPLEMENT DISABLE
B-17
13
FLASHER
L-13
15
SOLENOID - LOAD SENSE CONTROL
B-5
36
FLOOD - BOOM LH
H-2
16
SOLENOID - SPEED 1
A-10
F
CONN 26
FLOOD - BOOM RH
H-2
17
SOLENOID - SPEED 2
A-10
F
CONN 27
I-5
A
FLOOD - FRONT LH CAB
M-1
18
SOLENOID - SPEED 3
A-10
F
FLOOD - FRONT RH CAB
I-1
19
SOLENOID - SPEED 4
A-10
F
CONN 28
M-4
58
FLOOD - REAR LH CAB
K-16
20
SOLENOID - SPEED 5
A-10
F
CONN 29
M-4
58
FLOOD - REAR RH CAB
G-17
21
SOLENOID - SYNC MOD
A-11
F
CONN 30
I-2
13
FUSE - FUEL PUMP
C-6
E
SOLENOID - TRAILER DOWN
A-18
43
CONN 31
C-2
61
GPS VHF
H-5
A
SOLENOID - TRAILER UP
A-18
43
CONN 32
E-1
62
HEATER - COLD START
A-7
E
SOLENOID -QC
H-1
44
HORN
J-5
14
SPEAKER - LH
L-16
A
A
SPEAKER - RH
H-17
A
22
SUPPRESSOR - BACKLIGHT SIGNAL
H-5
A
26
SUPPRESSOR - FRAME LEVEL 1
D-1
35
24
SUPPRESSOR - FRAME LEVEL 2
C-1
35
D-18
24
SUPPRESSOR - FRAME LEVEL DUMP POS 1
D-1
35
Torque Converter Oil Temperature Sensor
LAMP - STOP/TAIL/TURN/REV LH
E-18
23
SUPPRESSOR - FRAME LEVEL DUMP POS 2
C-1
35
1127
Position Sensor - (Fwd./Back Lever) of Joystick Control
LAMP - STOP/TAIL/TURN/REV RH
B-18
25
SWITCH - A/C HIGH PRESSURE
E-6
E
1128
Position Sensor - (Left/Right) of Joystick Control
LAMP - STOP/TURN/TAIL/FOG LH
F-18
23
SWITCH - AIR RESTRICTION INDICATOR
E-7
E
1187
Continuous Flow Switch
LAMP - STOP/TURN/TAIL/FOG RH
A-18
25
SWITCH - BEACON
J-8
C
Position Sensor - (Aux. Hyd.) R Thumb of Joystick Control
MODULE - A/C
E-6
E
SWITCH - BOOM FLOOD
F-9
B
MOTOR - BLOWER
H-11
28
SWITCH - CAB FLOOD
F-8
B
MOTOR - FRONT WASHER
K-13
29
SWITCH - BLOWER ON
E-6
B
L-4
14
SWITCH - CAB PLATFORM SELECT
F-10
B
WH
Starter Relay No. 1 Output
A708
BR
Not Used
306
GN
Starter Relay Coil
A709
OR
Not Used
307
OR
Key Switch
A710
GY
Air Restriction Indicator
308
YL
Main Power Relay Coil
A711
PU
Not Used
317
YL
Cold Start Relay
A712
BR
Not Used
321
BR
Backup Alarm
A746
PK
Not Used
322
GY
Warning Horn (Forward)
C743
PK
Parking Brake Switch Disengaged
323
WH
Fuel Pump Power
C744
PU
Parking Brake Switch Engaged
324
BU
Differential Lock Solenoid
C903
BU
Stabilizer Relay 1
325
PK
Fuel Pump Relay Cut-out
C905
OR
Stabilizer Relay 2
1189
329
YL
Fuel Pump to Switch
C967
BU
Intake Manifold Temperature Sensor
1251
Alternator R-Terminal Signal
352
BU
Start Relay No. 1 Resistor to Diagnostic
C993
WH
Shift Rail Sensor
1326
ECM Location Code
375
BR
Cold Start Relay to Engine ECM
E528
PU
HVAC Blower
1401
Transmission Solenoid 1
A309
GY
Fuel Lift Pump
E529
YL
HVAC Blower
1402
Transmission Solenoid 2
A310
BU
Transmission Temperature Switch (V+)
E798
PK
Not Used
1403
Transmission Solenoid 3
E900
WH
Transmission Out Speed Sensor
1404
Transmission Solenoid 4
Alternator Terminal
E901
GN
Transmission Out Speed Sensor
1405
Transmission Solenoid 5
Monitoring Circuits
Connector Location
Component Location
0826
DISPLAY CLUSTER
MOTOR - FRONT WIPER MOTOR - FUEL LIFT PUMP
A-7
E
SWITCH - CONT FLOW
H-7
C
K-13
28
SWITCH - DIFFERENTIAL LOCK FOOT
L-7
45
MOTOR - REAR WIPER
I-17
30
SWITCH - DIMMER
J-7
C
MOTOR - ROOF WASHER
K-13
28
SWITCH - DISCONNECT
A-7
E
MOTOR - ROOF WIPER
J-17
31
SWITCH - FOG LAMP
H-8
C
MOTOR - SEAT PUMP
G-11
28
SWITCH - FRAME LEVELING
H-6
C
MOTOR - REAR WASHER
TH220B & TH330B Telehandler Electrical System TH220B: S/N TFB00100 & After TH330B: S/N TBG00100 & After
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.
Volume 1 - EROPS Manufactured by JLG under license from Caterpillar
403
GN
428
OR
Opr Mon Transmission Oil Temperature
E902
PU
Transmission Intermediate Speed Sensor
1406
Transmission Solenoid 6
443
YL
Power Train Temperature Gauge
E903
YL
Transmission Intermediate Speed Sensor
1407
Transmission Solenoid 7
447
PK
Fuel Level Gauge
E908
BR
Sensor
MOTOR - STARTER
B-6
32
SWITCH - FRONT WASHER
F-7
B
1410
Transmission Solenoid 10
YL
Alternator Indicator Lamp
E909
WH
Sensor
E-8
E
SWITCH - FRONT WIPER
F-7
B
19
C444
PUMP - FUEL INJECTOR
G-15
D
SWITCH - HAZARD
J-6
C
GN
Oil Filter Bypass Switch
E965
BU
Engine Speed Sensor
Quick Coupler Switch
RELAY - AUX DIV GROUND
E450
1529
G-15
D
SWITCH - HEAD/SIDE LAMP
J-7
C
18
YL
Engine Speed Sensor
Quick Coupler Solenoid
RELAY - AUX DIV POWER
E966
1530 1603
Data Link
RELAY - BLOWER HIGH
I-11
15
SWITCH - HEAT/AC
F-6
B
1658
Position Sensor - Left Thumb Lever of Joystick Control
RELAY - BLOWER MEDIUM HIGH
I-10
15
SWITCH - HORN
K-5
C
1740
Crab Steering Solenoid
RELAY - CIRCLE STEER
J-15
D
SWITCH - HVAC BLOWER
F-6
B
RELAY - COLD START
A-7
10
SWITCH - IMPLEMENT DISABLE
F-10
B
RELAY - CRAB STEER
J-16
D
SWITCH - KEY START
G-6
C
RELAY - FRAME LEVEL INTERLOCK
Accessory Circuits 500
BR
Wiper - Front (Park)
F700
BU
Not Used
501
GN
Wiper - Front (Low)
F701
BR
Not Used
502
OR
Wiper - Front (Hi)
F702
GN
Accelerator Signal
503
BR
Wiper - Rear (Park)
F703
GY
Not Used
504
YL
Wiper - Rear (Low)
F705
PK
Not Used
506
PU
Washer - Front
F706
PU
Not Used
507
WH
Washer - Rear
F707
WH
Not Used
508
PU
Speaker - Left
F708
YL
Not Used
509
WH
Speaker - Left (Common)
F709
BU
Not Used
511
BR
Speaker - Right
F710
BR
Lift Pump
512
GN
Speaker - Right (Common)
F711
GN
CAN Link +
513
OR
AC Compressor/Refrigerant Pressure Switch
F712
GY
CAN Link -
515
GY
Blower Motor (High)
F714
PK
Not Used
516
GN
Blower Motor (Medium)
F715
PU
Not Used
517
BU
Blower Motor (Low)
F716
WH
Not Used
518
OR
Hazard Flasher to Switch
F717
YL
Not Used
521
YL
AC Switch to Refrigerant Switch
F718
BU
Not Used
522
WH
AC Clutch to Thermostat Switch
F719
BR
Not Used
523
BR
Roof Wiper
F720
GN
Not Used
524
BU
Roof Wiper
F721
GY
Not Used
529
WH
Roof Washer
F722
OR
Not Used
536
WH
Hazard Switch to Turn Switch
F727
BU
A515
BR
Blower Motor No.2 (High)
F729
A516
PK
Blower Motor No.2 (Medium)
C547
OR
Blower Motor No. 2 (Medium - Low)
E554
PK
1763
Operator Station Selector Switch
1788
Right Stabilizer Operator Switch
1789
Left Stabilizer Operator Switch
1820
Auxiliary Implement Diverter Relay
1823
Position Sensor - Shift Rail No.1
1824
Position Sensor - Shift Rail No.2
1825
Position Sensor - Shift Rail No.3
1826
Longitudinal Stability Indicator Sensor
1827
Longitudinal Stability System
1828
Boon Angle Switch
1829
G-16
D
SWITCH - LH STAB
H-6
C
RELAY - FUEL PUMP
B-6
10
SWITCH - MAN VSC
K-8
A
RELAY - LIFT PUMP
G-15
D
SWITCH - OIL FILTER BYPASS
D-7
E
RELAY - MAIN POWER
G-13
33
SWITCH - PARK BRAKE
M-13
A
RELAY - QUICK COUPLER POWER
J-15
D
SWITCH - QUICK COUPLER
K-7
C
RELAY - REVERSE LAMPS
J-15
D
SWITCH - REAR WIPER
F-8
B
RELAY - STABILIZER 1
J-16
D
SWITCH - REV FAN
K-6
A
RELAY - STABILIZER 2
G-16
D
SWITCH - RH STAB
H-7
C
B-5
10
SWITCH - ROOF WIPER
F-7
B
RELAY- QUICK COUPLER GROUND
J-15
D
SWITCH - SERVICE BRAKE PRESSURE
M-9
1
Boom Position Status
RESISTOR - ALTERNATOR
C-7
4
SWITCH - STEER MODE SELECT
K-6
C
1830
Boom Telescope Position Status
RESISTOR - TERMINATING
H-5
C
SWITCH - STOP LAMP
L-8
48
1831
Rear Axle Lock Solenoid Switch
RESISTOR - TERMINATING RES 1A
D-17
34
SWITCH - TOW HITCH
F-9
B
1832
Right Stabilizer Pressure Sensor
RESISTOR - TERMINATING RES 2B
F-2
35
SWITCH - TURN SIGNAL
G-8
A
1833
Left Stabilizer Pressure Sensor
RESISTOR - TERMINATING STD
A-5
36
SWITCH - XMSN NEUTRAL DISABLE
K-7
C
1834
Ignition Key Switch
SENDER - FUEL
E-15
37
THERMOSTAT
H-10
28
1845
Programmable Hydraulic System Pilot Module #1
Not Used
1846
Programmable Hydraulic System Pilot Module #2
GN
Air Restriction Indicator
1847
Programmable Hydraulic System Pilot Module #3
F770
BR
Fuel Injector Pump
F799
BU
Frame Level Dump Position 1/2
F846
PU
Machine Security Red LED Signal
Lighting Circuits
G757
OR
Transmission Neutralizer Switch 2
AC Controller to AC Compressor Clutch
PK
Rotary Beacon
G848
GN
Machine Security Green LED Signal
604
OR
Stop Lamp
G962
OR
Implement Disable Solenoid
605
YL
Turn Lamp - Left
H750
BR
Front Axle Center
606
GY
Turn Lamp - Right
H751
OR
Rear Axle Align Switch
608
GN
Flood Lamp - Rear
H764
GY
Circle Steer Relay
610
OR
Head Lamp - Basic
H765
WH
Crab Steer Relay
611
PU
Head Lamp - Hi
H802
GY
Proportional Driver Return (5-8)
612
GY
Backup Lamp
J755
BU
Left Frame Level Solenoid Return
614
PU
Park/Tail/Dash Lamp
J756
BR
Right Frame Level Solenoid Return
615
YL
Cab Flood Lamp
J757
PU
616
BU
Bucket/Boom Flood Lamps
J758
PK
617
BR
Tail/Position Lamp - Left (Road Pkg) Width
J759
GN
Stabilizer Relay 1
618
YL
Tail/Position Lamp - Right (Road Pkg) Width
J760
YL
Frame Level Solenoid
619
GN
Head Lamp (Low)
J764
BR
Oil Filter Bypass Switch
627
YL
Fog Lamp
J811
BK
On/Off Return
649
YL
Light Switch to Park/Tail Lamp Breaker
J843
BK
Machine Security LED Ground
PU
Circle Steering Solenoid
RELAY - START
603
676
1741
Auxiliary Active Lamp Control Circuits
Shift Lever ECM (MID No. 117) CID
Component
0168
Electrical System Voltage
0668
Transmission Shift Lever
0168
ECM Internal Backup Battery
Stabilizer Relay 2
1391
Theft Deterrent Output Driver #1
Frame Level Solenoid
1392
Theft Deterrent Output Driver #2
J847
GN
Monitor Alarm
K791
OR
Rev Fan Switch
750
GN
Platform Mode Switch
L730
OR
Oil Pressure Sensor
751
GN
Transmission Shift Solenoid - Forward
L731
BR
Coolant Temperature Sender
752
YL
Transmission Shift Solenoid - Reverse
L740
BR
Transmission Oil Temperature Sender
753
GY
Cab Platform Select Switch
N957
PK
Product Link
754
BU
Transmission Shift Solenoid No. 1 or 3
N960
OR
Product Link
755
OR
Transmission Shift Solenoid No, 4 or 5
N970
YL
Product Link
756
WH
Transmission Lockup Clutch Solenoid
N973
BR
Product Link
757
PU
Transmission Neutral Disable Switch
N979
GN
Product Link
758
GN
Boom Lower Switch
P909
PK
Man VSC Switch
759
OR
Steer Mode Select Switch
P916
OR
Shift Rail Sensor
760
PK
Steer Mode Select Switch
P936
GY
Frame Level Solenoid
761
GY
Steer Mode Select Switch
T800
OR
+8V Digital Sensor Power
763
BU
Quick Coupler Switch
T901
YL
Machine Secutriy Exciter Coil (In)
764
PU
Quick Coupler Switch
T902
PK
Machine Security Exciter Coil (Out)
765
OR
Quick Coupler Switch
T941
BR
Switch (Note D)
766
GN
Service Brake Pressure Switch
T942
PK
Switch (Note D)
769
BU
Mn VSC Switch
T943
GY
Switch (Note D)
774
YL
Implement Diable
T944
GN
Switch (Note D)
780
PU
PHS Joystick Grip Control
X731
BU
Intake Manifold Temperature Sender
781
PK
PHS Joystick Y Axis
X750
OR
Fwd./Rev. Solenoid Return from Controller
782
GY
PHS Joystick X Axis
Y758
PK
PHS Address (Out)
783
OR
Frame Level Disable Relay
Y759
YL
PHS Address (In)
786
GN
Boom Lowered
Y761
OR
PHS Address (In)
788
YL
Boom Angle Switch
Y787
WH
PHS Valve
792
OR
PHS Joystick Grip Control
Y788
GY
PHS Valve
793
YL
Implement Diable Switch
Y792
PK
Fuel Injector Pump
794
YL
Auxiliary Diverter Relay
Y793
YL
Fuel Injector Pump
795
YL
Quick Coupler Relay
Y794
OR
CAN High
799
WH
PHS Valves +10V
Y795
GN
CAN Low
16 12
41 44
36
39 26
29
4
45
32
61
35
55
62
F
37
49
28
40
8
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.
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.
C = Located in steering column. D = Located around relay panel. E = Located under engine cowl. F = Located on the transmission.
61
8
22
42 26
Component, Connector, Harness And Wire Symbols
E
56
25
Harness identification code This example indicates wire 135 in harness "AG".
55 62
40 53
18 6
54 1
Off Machine Switch Specification
Function
236-6923
A/C Hi Pressure
203-7984
Oil Filter Bypass
Actuate
275 to 2800 kPa¹ (40 to 406 psi.) 276 ± 28 kPa (40 ± 4 psi.)
Deactuate
170 to 1750 kPa¹ (25 to 254 psi.) 179 kPa (26 psi.)
Contact Position Normally Open² Normally Open
¹ With increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed condition can be maintained down to 170 kpa (25psi). ² Contact postion at the contacts of the harness connector.
Resistor, Sender and Solenoid Specifications Component Description
Part No.
Terminating/Alternator
Resistance (Ohms)¹
134-2540
Resistors:
295-3421
Sender:
178-9570
Solenoid:
A/C Compressor
17.6 ± 0.6
212-3350
Solenoid:
Aux. Div./QC
3.2 ± 0.224
195-9700
Solenoid:
Differential Lock/Speed
201-0315
Solenoid:
Frame Level
177-7807
Solenoid:
Fwd./Rev./Sync. Mod.
2.2 ± 0.2
200-6210
Solenoid:
Implement Disable
10 ± 0.5
Fuel
¹ At room temperature unless otherwise noted. ² Float at Full Position. ³ Float at Empty Position.
120 33² - 240³
10 ± 0.5 10.16 ± 0.3
13
2
43
24
34
11 14
22
Part No.
Wire, Cable, or Harness Assembly Identification: Includes Harness Identification Letters and Harness Connector Serialization Codes
F
12
35
16
32
10
57
39
36
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.
C 3
48 45
27 A 29
B 28 49 31
20
30
9 15
23
Socket
Single Wire Connector
Circuit Identification Number
Wire Color
21
1
Ground Connection
Part Number For Connector Recepticle
325-AL135 PK-14 Receptacle
Wire Gauge Plug
2
200-L32 BK-14 105-9344
37 1 2
Deutsch connector: The plug contains all sockets and the receptacle contains all pins.
5A Fuse (5 Amps)
Pin or Socket Number
D 5
L-C12 3E-5179
AG-C4 111-7898 325-AG135 PK-14
Pin
Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...) Harness Connector Serialization Code: The "C" stands for "Connector" and the number indicates which connector in the harness. (C1, C2, C3, .....)
Part Number for Connector Plug
AG-C3 C-C4 130-6795 130-6795
51
33
Machine Harness Connector And Component Locations
2
This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.
15
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.
19
Data valid but below normal operational range.
This indicates that the component has a wire connected to it that is connected to ground.
2
57
B = Located inside of right console.
58
1
25
A = Located inside of cab.
² The MID is a diagnostic code that indicates which electronic control modulediagnosed the fault.
Data valid but above normal operational range.
24
T
44
0
43
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.
51
Machine locations are repeated for components located close together.
41
Failure Description
23
Reed Switch - A switch whose contacts are controlled b y a magnet. A magnet closes the contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
4
Failure Mode Identifiers (FMI)¹
34
13
53
Circuit Breaker Symbol
Flow Symbol
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.
D 27
Level Symbol
Temperature Symbol
33
E
10
56
48
42
22
3
58 1
B
C
54
14
6
11
¹ The CID is a diagnostic code that indicates which circuit is faulty.
FMI No.
Electrical Schematic Symbols And Definitions T
17
0817
20 21
Pressure Symbol
Electrical System Voltage CAT Data Link
30
17
Component
0248
5
A
Machine Security (MID No. 124) CID
9
31
1 2
Component Part Number
Sure-Seal connector: The plug and receptacle contain both pins and sockets.
42 Page
Wire Number
Component Identifiers (CID¹) Module Identifier (MID²) Engine Control (MID No. 036)
31200278 VOL 1
Wire Description
31200278 December 15, 2006