Connector Location
Wire Description
Schematic Location
Connector Number
Machine Location
53 25
CONN 1
A-15,H-15
55
CONN 2
A-15
54
CONN 3
C-15
2
CONN 4
F-15,I-15
53
CONN 5
D-14
44
CONN 6
A-13
C
CONN 7
B-13
C
CONN 8
F-12
45
CONN 9
E-12
45
CONN 10
D-12
45
CONN 11
C-12 C-11
C
CONN 13 HVAC Unit
G-10
56
Service Tool
Wire Number
34
42
Wire Color
Description
B
44 22
56
47 35
9
2
33
11
26
A
5
20
E
C
60
45
D
57
61
46
1
40
23 31 39
27 37 36 7
12
62
21
54
Wire Color
59
Accessory Circuits (Continued)
101
RD
Bat(+)
537
GN
Turn Signal SW To Flasher
RD
HdLmp
538
BR
Hazard Indicator
105
RD
Key Start Sw
539
BU
Turn Signal Indicator Basic/Right
107
RD
Eng Shut-Fire Suppr
540
WH
Turn Signal Indicator Left
108
BU
AuxCkt
A513
PK
DC/DC Converter Memory Output
109
RD
Alt Output (+) Term.
A523
PU
Temp Potentiometer Pos 1
112
PU
Main Power Rly Output
A524
BR
Temp Potentiometer Pos 2
113
OR
Opr Mon Panel B+ Switched
A525
GN
Temp Potentiometer Pos 3
24 19
55
16
114
GN
Warning Horn (Forward)
A526
PK
Electronic Water Valve Actuator
118
GY
AuxCkt
A527
BU
Electronic Water Valve Actuator
F-10
C
120
YL
AuxCkt
A528
BR
Electronic Water Valve Actuator
H-9,l-8
C
122
BU
Aux Ckt
A541
PU
Flasher To Indicator Lights
CONN 16 Service Mode
H-9
C
CONN 17
G-8
B
123
WH
AuxCkt
A592
BU
Blend Door Motor (A)
124
GN
A/C
A593
OR
Blend Door Motor (B)
PK
Xmsn Ctrl
A594
WH
Blend Door Position Feedback (+)
OR
AuxCkt
A595
GN
Blend Door Position Feedback (Signal)
128
PK
AuxCkt
A596
YL
Blend Door Position Feedback (-)
129
BU
Aux Ckt
C529
GY
Lift Press Sensor
130
RD
AuxCkt
C530
BU
Lift Position Sensor
133
OR
AuxCkt
134
YL
Aux Ckt
603
PK
Rotary Beacon
CONN 15 Monitor Harness
CONN 18
F-8
E
CONN 19
F-6
A
126
CONN 20
I-4
C
127
CONN 21
G-4
A
CONN 22 Customer Data
C-4
C
CONN 23
B-4
D
CONN 24
A-3
46
CONN 25
B-3
62
CONN 26
E-3
61
CONN 27
F-3
61
CONN 28
I-2
34
CONN 29
G-2,F-2,D-2
47
CONN 30
D-2
31
CONN 31
I-1,F-1,G-2
60
CONN 32
F-1,G-2,H-1,I-1
60
CONN 33
E-1
35
CONN 34
A-3
46
CONN 35
D-1
23
D
B 11
59
E
A 35
5
3 22
10
54
8
1
42
26
34 16
61
48 6
4 40
46
44
15
36
55 25
24 60
21 37
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.
57
C
9
27
2
53
56 45
12 58
62
47 32
23 14
19 39
33
135
BU
Aux Ckt
604
OR
Stop Lamp
GN
Sec Ster
605
YL
Turn Lamp - Left
138
GN
Auto Lube Pump To Payload Mon
606
GY
Turn Lamp - Right
141
RD
AuxCrt
608
GN
Flood Lamp - Rear
144
GN
AuxCkt
610
OR
Head Lamp Basic
146
GY
Aux Ckt
611
PU
Head Lamp Hi
158
BR
AuxCkt
612
GY
Backup Lamp
167
OR
AuxCkt
614
PU
Park/Tail/Dash/Lamp
175
PK
Aux Ckt
615
YL
Cab Flood Lamp/Rops
177
OR
Main Brkr
617
BR
Tail/Position Lamp - Left (Road Pkg)/Width
188
WH
AuxCkt
619
GN
Head Lamp Lo
199
RD
Aux Ckt
633
BU
Attach Lighting Ckt
200
BK
Main Chassis
Ground Circuits
Related Electrical Service Manuals
646
OR
Light SW To Front Flood Relay
647
GN
Light SW To Rear Flood Relay
Form Number
201
BK
Operator Monitor Return
661
GN
Tachometer Lamp
Alternator: 107-7977
SENR 4757
202
BK
XMSN Ctrl
662
YL
Speedometer Lamp
Caterpillar Monitoring System
SENR 1394
Title
Electric Starting Motor: 6V-5227 Consist: 106-8552 Consist: 6V-5537 Consist: 6V-5538
SEN R3536 SENR3581 SENR4975
Payload Control System
SENR 6614
Machine Harness Connector And Component Off Machine Switch Specification Part No.
966G and 972G Wheel Loader Hyd. System System Operation Testing And Adjusting
RENR2114 RENR2115
Monitoring System Service Modes Mode Of Operation
Mode Number
Normal
0
Harness Code
1
Parameter Display
2
Service
3
Tattletale
4
Units
5
Calibration
18,20,42
972G
19,21
Payload Control Fault Codes Code 16800
Fault Battery Voltage Too High
16801
Battery Voltage Too low
25413
PCS Not Calibrated
35001
Position Sensor Out of Range
35002
Loss of Position Sensor Signal
36401
Pressure Sensor Out of Range
36402 76901 76902 81704 81708 82002
Sec Ster Motor Relay
6890 ± 345 kPa (1000 ± 50 psi)
A-C, Normally Closed A-B, Normally Open
291
BK
CMS Clear
752
YL
XMSN Shift Sol No. 2
299
BK
WTL ImpI Ctrl Gnd
754
BU
XMSN Shift Sol No. 3 Or 1
3E-7693
Service Brake Oil Pressure
10 700 kPa MAX (1550 psi MAX)
8960 ± 345 kPa (1300 ± 50 psi)
A-B, Normally Open A-C, Normally Closed
A219
BK
ETAC Ctrl Gnd
755
OR
XMSN Shift Sol No. 4 Or 5
A273
BK
Trans CtrI B -
761
GY
Lift KickOut Sol SW
62.0 kPa MAX (9.0 psi MAX)
38.0 ± 20.0 kPa (5.5 ± 3.0 psi)
Normally Open 304
WH
Starter Relay No. 1 Output
306
GN
Starter Relay Coil To Neut Start SW Or Key Start SW
307
OR
Key Start SW To Neutral Start SW
308
YL
310
PU
311
WH
321
BR
322
114-5333
Refrigerant Pressure (AC)
155-8999
Rear Axle Temperature Front Axle Temperature
275 to 1750 kPa ¹ (40 to 255 psi)
-
125 °C ± 3 (257.0 °F)
Basic Machine Circuits
Normally Open ²
117 °C Min (242.6 °F) Min
Normally Closed
Schematic Location H-11
126-5611
Machine Location 56
Actuator - Hood As.
A-14
124-4236
1
Sensor - Lift Cyl Head End Press
Actuator - Water Valve
H-11
126-5610
56
Alarm - Action
E-10
3E-6328
C
Alarm - Backup
C-15
123-6449
2
Alternator
C-15
107-7977
3
Arc Suppressor
F-10
106-8704
Batteries
F-15
115-2422
Actuator - Blend Door
Part No.
3PW1-1099 3SW1-1224 4WW1-719 6AW1-499 8XW1-755 9GW1-507
The circle indicates that the component has screw terminals and a wire can be disconnected from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
762
YL
Bucket Positioner Sol SW
795
YL
Dual Hp Sol
E701
PK
Auto Ride CntI SW
E702
OR
Auto Ride CntI SW
Main Power Relay Coil
E707
GN
Display +V
Start Aid SW To Start Aid Sol
E708
PK
Display Clock
Start Aid Sol To Temp SW
E735
PU
Tack/Serv Mtr/Odometer Select
Backup Alarm Lamp Travel Alarm
F781
BR
Downshift SW (N.O.)
GY
Warning Horn (Forward)
F783
GN
Upshift SW (N.C.)
326
PU
Key Start SW ‘C” Term.
F784
YL
Downshift SW (N.C.)
327
PK
Shutdown Solenoid
G728
YL
SW To SW
334
BU
Start Aid Sol #2
G750
BU
XMSN Cont Fwd SW To Gnd
This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.
Harness And Wire Electrical Schematic Symbols
Start Aid Switch To Timer
G755
GY
XMSN Cont Rev SW To Gnd
Sensor - Lift Linkage Rotary Position
F-1
121-0284
24
397
OR
Hood Raise Motor
G760
WH
XMSN Cont Speed 2 SW To Gnd
F-7
106-4437
E
0041
+8 Volts Sensor Supply
Sensor - Tilt Lever Pos
398
BU
Hood Raise Motor
761
YL
XMSN Cont Speed 3 SW To Gnd
0070
Parking Brake Switch
Sensor - Torque Cony Output Speed
B-13
3E-8848
26
A300
GN
Hood Raise Relay Coil
G762
BR
XMSN Cont Speed 4 SW To Gnd
0149
Ride Control Solenoid #2
0084
Ground Speed Sensor
Sensor - Tran Intermediate Speed Sensor 1
B-13
3E-8848
26
0168
Electrical System Voltage
0096
Fuel Level Sensor
C
Sensor - Tran Intermediate Speed Sensor 2
B-13
3E-8848
26
0177
Transmission Oil Temperature Sensor
0100
Engine Oil Pressure Sensor
4
Sensor - Tran Output Speed Sensor 1
C-13
3E-8848.
26
A301
WH
Hood Raise Relay Coil Monitoring Circuits
XMSN Cont Neut SW To Gnd
Engine Speed Sensor
0110
Engine Coolant Temperature Sensor
0270
Cat Monitor System Harness Code
0177
Torque Converter Oil Temperature Sensor
0363
Ride Control Solenoid
0248
Data Link
0367
Ride Control Switch
0263
8 Volt Sensor Power Supply
0368
Transmission AUTO/MAN Switch
0271
Action Alarm
0444
Start Relay
0324
Action Lamp Engine Speed Sensor
Sensor - Trans Oil Temp
26
405
GY
Opr Mon Oil Press. (Low Setting)
G767
WH
ImpI Cont SW To Gnd N.C.
5
Solenoid - A/C Clutch
B-15
3E-1906
27
410
WH
Opr Mon Action Alarm
G768
GN
XMSN Cont Speed 1 SW To Gnd
6T-3644
5
Solenoid - Pilot Valve Gp
F-9
152-6480
3T-2662
5
6T-3643
C
E-5
155-1615
Control - Power Train ECM
I-10
Control - Water Valve/Blend Door
G-11
E
Solenoid - Shutdown
D-14
110-6465
15
Solenoid Valves - Ride Control
D-1
3E-8574
31
A
Solenoids - Clutch Modulating Valve
C-13
121-4298
26
142-3363
57
Stud - Terminal
D-11
9G-8451
C
126-6010
A
Suppressors - Arc
E-6
1106-8704
A
411
PK
Opr Mon Master
416
OR
Sec Ster SW
417
GY
Primary Ster SW
419
YL
Opr Mon Parking Brake
H713
ImpI Cont Lift Proportional Sol
H714
OR
ImpI Cont Lower Proportional Sol
0562
Unable To Communicate With Cat Monitor System
0523
H716
WH
ImpI Cont Sol Return
0585
Transmission Output Speed Sensor 1
0600
Hydraulic Oil Temperature Sensor
ImpI Cont Pilot Press Sol
0617
Air Heater Relay
0601
Brake Air Pressure Sensor
0621
Downshift Switch
0819
Display Data Link
0622
Up Shift Switch
0821
9 Volt Display Power Supply
0830
Brake Oil Temperature Sensor
BR
432
PK
Opr Mon Brake Press. (Oil)
818
BR
Serial Data (Transmit)
OR
Eng Coolant Temp Gauge
819
GY
Serial Data (Receive)
Control - WLPCS ECM
C-4
112-1572
59
Switch - A/C Refrigerant
D-15
114 -5333
27
441
0623
Direction Switch
Converter-Voltage
H-5
119-1733
B
Switch-AIH
G-5
112-6169
A
442
GY
Hyd System Temp Gauge
900
PU
XMSN Shift Sol No. 5 or 4
0631
Transmission Clutch #1 Solenoid
Dimmer - Control
E-11
103-5526
C
Switch - Auto Ride Control
B-5
103-6333
D
443
YL
Power Train Temp Gauge
901
WH
XMSN Shift Sol No. 6
0632
Transmission Clutch #2 Solenoid
Flasher
F-10
120-4537
C
Switch - Auto/Manual
B-6
147-1402
D
447
PK
Fuel Level Gauge
910
YL
XMSN Neutizer Override Indicator
0633
Transmission Clutch Solenoid #3
Fuses
A-14
3K-8782
5
Switch-Beacon
B-9
9X-9639
D
0634
Transmission Clutch Solenoid #4
450
YL
Tach Sender (+)
944
OR
Data Link + (CAT)
3K-8782
C
3E-7156
D
Transmission Clutch Solenoid #5
Switch - Blower
B-9
0635
Fuses - 10A
D-11
453
PK
Sec Ster Action Lamp
945
BR
Data Link - (CAT)
0636
Transmission Clutch Solenoid #6
Fuses - 15A
D-11
8M-8948
C
Switch - Brake Oil Pressure
I-3
3E-7693
34
484
YL
961
BR
Transmission Shift Lever
Gauge - Quad
100-5895
A
Switch - Bucket Position
F-1
116-2025
35
Selector SW
0668
E-4
Primary Ster Lamp
D
Switch - Bucket Positioner
F-1
116-2025
35
WH
Opr Mon Panel Hyd Oil Level
964
BU
Fork Position Select
Torque Converter Output Speed Sensor
A-8
496
0672
Ground - Cab Ground-Cab
F-10
57
Switch-Dimmer
B-3
2H-1855
58
Opr Mon Implement Oil Filter
973
BR
499
GY
0673
Transmission Output Speed Sensor
CST Autoshift- Auto/Manual SW 2
0674
Transmission Intermediate Speed Sensor 1
Ground-Cab
H-8
57
Switch-Disconnect
B-15
7N-0718
36
C413
YL
Display Data
975
WH
CST Autoshift- Sol Return
0675
Transmission Intermediate Speed Sensor 2
Ground-Cab
H-10
57
Switch-Downshift
F-8
158-5626
E
C414
BU
Display Load
976
OR
Ride Cont Solenoid 1
0688
Variable Horsepower Solenoid
0793
Primary Steering Pressure Switch
0794
Secondary Steering Pressure Switch
0795
Secondary Steering Intermediate Relay
Ground - Left Frame Boss
E-14
6
Switch - Engine Oil
B-14
9X-0378
37
E416
PU
PMS Lift Cyl Press Sensor
977
YL
CST Autoshift - Auto/Manual SW 1
Ground - Right Rear Frame
A-15
7
Switch - Forward Horn
G-4
2T-3360
A
G485
BU
Opr Mon Front Brake Temperature
E900
WH
ECPC Trans Output SPD +
Ground - Steer Column
E-5
A
Switch - Front Axle Temp
D-1
155-8999
39
G486
GN
Opr Mon Rear Brake Temperature
E901
GN
ECPC Trans Output SPD
Accessory Circuits
E902
PU
ECPC Trans Intermediate SPD +
B
1
Data valid but below normal operational range.
Ground - To Engine Block
D-14
10
Switch - Hood Actuator
A-14
146-0240
40
2
Data erratic, intermittent, or incorrect.
Horn - Forward
H-1
4Y-7882
12
Switch - Hyd Oil Level
3
Voltage above normal or shorted high.
Horns - Forward
E-1
7T-0970
12
4
Voltage below normal or shorted low.
Horns - Forward
I-1
7T-0970
12
5
Current below normal or open circuit.
Keypad - WLPCS
B-4
129-0419
6
Current above normal or grounded circuit.
Motor - Actuator
A-14
7
Mechanical system not responding properly.
Motor - Blower
G-11
Motor - Front Wiper Motor - Rear Wiper
Motor - Starter
500
BR
Wiper - Front (Park)
E903
YL
ECPC Trans Intermediate SPD
501
GN
Wiper - Front (Low)
E904
BR
ECPC Trans Intermediate SPD Q+
A-2
123-2993
19
Switch - Implement Detent Override
F-9
7X-1886
11
502
OR
Wiper - Front (HI)
E905
BU
ECPC Trans Intermediate SPD Q
Switch - Key Start
D-5
9G-7641
A
503
BR
Wiper - Rear (Park)
E906
OR
ECPC Trans Output SPD Q+
59
Switch - Kickout On/Off
G-8
118-0636
B
504
YL
Wiper - Rear (Low)
E907
GY
ECPC Trans Output SPD Q
117-1557
1
Switch - Neutralizer
C-3
105-6118
58
505
BU
Wiper - Rear (HI)
E908
BR
ECPC Trans Input SPD +
3E-6392
56
Switch - Park Brake Oil Pressure
I-3
3E-6452
42
506
PU
Washer - Front
E909
WH
ECPC Trans Input SPD
D-5
147-7973
A
Switch - Primary Steer
I-2
3E-6450
C
507
WH
YL
137-8709
C
155-8999
33
AUX Lower Proportional Sol
Switch - Rear Axle Temp
C-14
Washer - Rear
E919
F-10
508
PU
Radio Speaker - Left
E920
BR
AUX Uft Proportional Sol
509
WH
Radio Speaker - Left (Common)
E921
PK
Rackback Proportional Sol
I-4
139-2327
C
Switch-Rear Wiper
C-9
112-6174
D
D-14
6V-5227
15
Switch - Run/Work/Panel/Tail
C-8
108-3320
D
Motors - Washers
A-3
7T-8890
16
Switch - Sec Steer Test
H-8
143-3001
B
511
BR
Radio Speaker - Right
E922
GN
Dump Proportional Solenoid
Relay - Backup Lamp
I-15
4Y-6135
25
Switch - Secondary Steer
I-3
3E-6450
C
512
GN
Radio Sneaker - Riaht (Common)
E923
PK
ETAC Front Left Wheel Proportional Solenoid
Relay - Front Flood
E-10
3E-5239
C
Switch - Selector AC/Heat
B-9
3E-7155
D
513
OR
A/C Compressor/Refrigerant Pressure SW
E924
YL
ETAC Front Right Wheel Proportional Solenoid
16
Parameter not available.
Relay - Hood Raise Lower
A-14
149-2612
5
Switch - Service Brake Pedal As.
B-3
110-8029
58
515
GY
Blower Motor (HI)
E925
OR
ETAC Rear Left Wheel Proportional Solenoid
17
Module not responding.
Relay-Main
A-14
101-7740
5
Switch-StartAid
G-5
3E-717B
A
516
GN
Blower Motor (Medium)
E926
BU
ETAC Rear Right Wheel Proportional Solenoid
18
Sensor supply fault.
Relay - Rear Flood
E-11
3E-5239
C
Switch - Start Aid Coolant
B-15
3E-6425
22
517
BU
Blower Motor (Low)
E927
GN
ETAC Test Mode SW (N/C)
19
Condition not met.
Relay - Sec Steering Intermediate
F-11
3E-5239
C
Switch - Stop Lamp
B-3
3E-5520
60
5
112-6171
A
Hazard Flasher To SW
WH
Switch - Tach/Speedo/Serv Meter
G-5
E928
Relay - Start Magnetic Switch
125-1302
OR
ETAC Test Mode SW (N/O)
Parameter failures.
B-14
518
20
Resistor - Blower
G-11
9G-1950
56
Switch - Temp Selector
521
YL
A/C SW To Refrigerant SW
E930
BU
ETAC Front Axle Pilot Solenoid
Sender - Engine Coolant Temp
B-15
4W-9972
A
Switch - Thermostat
522
WH
A/C Clutch To Thermostat SW
E936
WH
ETAC Solenoid Return
Sender - Fuel Level
C-15
134-3033
2
Sender - Hyd Temp
A-3
4W-9972
19
Sender - Torque Converter Oil Temp
B-15
4W-9972
20
Sensor - Engine Speed
C-14
6V-2455
21
Machine locations are repeated for components located close together. A = Operator Compartment - Dash Console B = Operator Compartment - Left Overhead Console C = Operator Compartment - Relay/Fuse Panel D = Operator Compartment - Right Overhead Console E = Operator Compartment - Right Console
B-9
127-4540
D
G-11
3E-5464
56
Switch - Tran Neutralizer Override
B-5
112-6156
D
E955
OR
WLPMS PHII Keypad Data
Switch - Turn Signal
F-6
134-9569
A
G939
PK
Switch Return
Tach/Speedometer
E-4
100-5888
A
K933
GN
Stick 2 Bypass Sol
K977
PK
ECPC Trans Oil Temp Sensor
N939
GN
Ride Control Solenoid 2
P910
BR
Secondary Steering Test Sw Input
2
¹ The CID is a diagnostic code that indicates which component is faulty.
C
3E-8574
4W-9972
9G-1950 110-6465 121-4298
134-3033
325-PK-14
Pin
¹ At room temperature.
AA 1
9X-1123 325-PK-14
Wire Color
Socket
2
200-BK-14
Circuit Number Identification
Wire Gauge
Electrical Schematic Symbols And Definitions
Component Description Solenoid - A/C Clutch Solenoid Valve - Start Aid Solenoid Valve - Ride Control Sender - Hydraulic Oil Temperature Engine Coolant Temp Torque Converter Temp Resistor - A/C, Heater Blower Motor Solenoid - Engine Shutdown Solenoid - Clutch Modulating Valves Sender - Fuel Level Full: Empty:
A
A
² The MID is a diagnostic code that indicates which electronic control module diagnosed the fault
FUSE - A component in an electrical circuit that will open the circuit if too much current flows through it. 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.
Resistor, Sender and Solenoid Specifications
3E-6332
Component Part Number
Single Wire Connector
² The MID is a diagnostic code that indicates which electronic control module diagnosed the fault
3E-1906
Typical representation of a Sure-Seal connector. The plugand receptacle contain both pins and sockets.
Wire, Cable, or Harness Assembly Identification
¹ The CID is a diagnostic code that indicates which component is faulty.
Part No.
Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
Pin or Socket Number
PK
H717
1 2
1 2
Receptacle
Plug
0190
100-3055
AA
Component
XMSN Cont Pk Brk Lever SW To Gnd
B-13
B-13
CID
ImpI Cont SW To Gnd N.O.
5
A 1
PK
26
Breaker - Engine Shutdown
Component
GN
3E-8848
Breaker - Hood
CID
Component Identifiers (CID¹) and Module Identifier (MID²) for Caterpillar Monitoring System (MID No. 030)
766
B-13
6T-3643
Component Identifiers (CID¹) and Module Identifier (MID²) for Power Train ECM (MID No. 081)
G764
Sensor- Tran Output Speed Sensor 2
B-14
Alternator (R) Term.
PU
403
5
GN
G763
Printed in U.S.A.
©2001 Caterpillar All Rights Reserved
GN
9S-4693
Motor-Sec Steer
Normally closed switch that is open due to an applied condition, and will close again with a specific decrease in that condition.
373
A-14
8X-5804
Normally closed switch that will open with an increase of a specific condition.
23
D
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
966G and 972G Wheel Loaders Electrical System
124-4672
Breaker-Alt
Breaker - Main
Normally open switch that is closed due to an applied condition, and will open again with a specific decrease in that condition.
D-1
Part No.
Flow Symbol
Level Symbol
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
3E-8848
Sensor - Input Speed
Schematic Location B-13
Pressure Symbol
Machine Location 26
Component
112-6167
Parameter failures.
GN
8270 kPa MAX (1200 psi MAX)
110-7886
Parameter failures.
727
Park Brake Oil Pressure
B-4
15
CMS Ident Code 4
3E-6452
G-9
14
BK
Sec Ster Cont SW
Switch - Hazard lamp
Out of calibration.
274
XMSN Shift Sol No. 1 Or 3
Switch - Front Wiper
13
XMSN Brake SW
BU
8
Bad device or component.
Sensor Power Supply
PU
GN
9
12
OR
728
C-15
Failure mode not identifiable.
709 720
751
G-12
11
CMS Ident Code 2 CMS Ident Code 3
CMS Ident Code 5
Ground - To Engine
Abnormal rate of change.
BK BK
CMS Service
Ground - Strap Frame to Cab
10
272 273
BK
Engine Oil Pressure
T
Temperature Symbol
Control Circuits
BK
Data valid but above normal operational range.
Abnormal update.
CMS Ident Code 1
275
0
9
BK
290
Pressure Sensor Out of Range
Abnormal frequency, pulse width, or period.
271
A-C, Normally Closed A-B, Normally Open
Loss of Pressure Sensor Signal
8
Flasher Bkr To Flasher
700 ± 100 kPa (100 ± 15 psi)
Control - Cat Monitoring System
Failure Description
YL
1200 kPa MAX (175 psi MAX)
B-14
FMI No.
692
Primary Steering Oil Pressure Secondary Steering Oil Pressure
D-11
Failure Mode Identifiers (FMI)¹
CMS Ident Code 0
3E-6450
Breaker - Running Lamp
Loss Of Keypad Data Link
BK
Normally Closed
Breakers - 15A
Real Time Clock Not Running
270
Contact Position
9S-4693
Backup Battery Error
Gauge Lamps Warning Lights To Bkr
27 °C MIN (80.6°F MIN)
B-14
Loss of Pressure Sensor Signal
GY GY
Deactuate
Machine Codes 966G
663 691
38 ± 3°C (100.4° ± 5.4°F)
Component
Machine Code
Payload Mon - Customer Gnd Payload Mon - System Gnd
Actuate
Component Location
Sales Model
BK BK
Coolant Temperature (Start Aid)
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 (25 psi). ² Contact position at the contacts of the harness connector.
6,7,8
250 251
3E-6425
9X-0378
Function
Electrical Schematic Symbols And Definitions
Lighting Circuits
136
31
20
7
RENR2118-01 December 2001
Description
102
58
6 10 15
3
Wire Number
Power Circuits
8
4
45
CONN 12 CONN 14
1
1
Resistance (Ohms)¹ 17.6 ± 0.6 6.0
T
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.
34.3 ± 1.7 54°C (130°F) - 560 to 716 110°C (230°F) - 72 to 82
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.
Overall 2.0 ± .1; Tap 1.0 ± .05 5.12 ± .26 7.75 ± 1.0 27.5 - 39.5 240 - 260
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too much current flows through it. This does not destroy the circuit breaker and it can be reset to become part of the circuit again. 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. MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch) that make electromagnet when current flows through them. It also has an internal switch that places the latch coil circuit open at the time the coil latches.