Wire Description
Connector Location Schematic Location
Connector Number
Machine Location
CONN 1 Auxiliary Start Receptacle
B-15
58
CONN 2
B-15
43
CONN 3
C-15
54
CONN 4
C-15
2
CONN 5
D-14
44
CONN 6
C-14
54
CONN 7
C-14
54
CONN 8 CONN 9 Monitor Harness Code Plug
A-13
5
H-13, H-9
C
F-12
45
CONN 10
18
Wire Number
Wire Color
Wire Number
Wire Color
101
RD
Battery (+)
A527
BU
Electronic Water Valve Actuator
102 105
RD
Running Lamp Breaker
A541
PU
Flasher To Turn Signal SW
RD
Key Start SW
A592
BU
Blend Door Actuator
108
BU
Seat Air Compressor
A593
OR
Blend Door Actuator
109
RD
Alternator Output (+) Term
A594
WH
Blend Door Position Feedback (+)
112
PU
Main Power Relay Output
A595
GN
Blend Door Position Feedback (Signal)
113
OR
Operator Monitor Panel VMIS B+ Switched
A596
YL
Blend Door Position Feedback (-)
114
RD
Warning Horn (Forward)
C529
GY
Lift Cylinder Head End Pressure Sensor
118
GY
Wiper Motor
C530
BU
Lift Position Sensor
120
YL
Voltage Converter
P531
GN
Not Used
122
RD
Dome Lamp
123
WH
Axle Oil Cooler
603
PK
Rotary Beacon
Description
4 B
6 30
15
3
50
33
54
28
39
C 45
5
29 7 43
35
12 23 31
A
13
27 37 36
26
21
11
47
14
32
17
58
56
22
2
51
8
44
25
57
20
1
46
D
59 24
19
40
CONN 11
E-12
45
CONN 12
D-12
45
CONN 13
C-12
45
124
GN
A/C
604
OR
Stop/Tail/Park Lamp (Right)
CONN 14
C-11
C
126
PK
Transmission Control
605
YL
Turn Lamp - Left
CONN 15
G-10
56
127
OR
Front Floods
606
GY
Turn Lamp - Right
CONN 16 ECAP Service Tool
F-10
C
128
PK
Pilot Control
608
GN
Flood Lamp - Rear
CONN 17
E-8
57
129
BU
Cigar Lighter
610
OR
Head Lamp Basic
CONN 18
E-8
57
130
RD
Stop Lamp/Hood Lamp
611
PU
Head Lamp Hi
CONN 19
D-8
57
133
OR
Work Lamps
612
GY
Backup Lamp
CONN 20
D-8
57
134
YL
Rear Floods
614
PU
Park/Tail/Dash/Lamp
I-7, I-6
C
135
BU
Radio
615
YL
Cab Flood Lamp/Rops
CONN 22
F-6
A A
GN
617
BR
Stop/Tail/Park Lamp (Left)
G-4
136
Secondary Steering
CONN 23
A
619
GN
Head Lamp Lo
G-4
GN
Auto Lube Pump To Payload Monitor
CONN 24
138 144
GN
Beacon
633
BU
Bucket Turn Signal Indicator
146
GY
EH Implement Control
646
OR
Light SW To Front Flood Relay
158
BR
Blower/Selector SW
647
GN
Light SW To Rear Flood Relay
168
GN
Quick Coupler
661
GN
Tachometer Lamp - Control Group (Dimmer)
175
RD
Hood Breaker
662
YL
Speedometer Lamp - Control Group (Dimmer)
177
RD
Main Breaker
663
GY
Gauge Lamps - Control Group (Dimmer)
188
WH
Keypad Supply
691
GY
Flasher
692
YL
Turn Signals
200
BK
Main Chassis
201
BK
Operator Monitor Return
709
OR
Sensor Supply (+8V)
CONN 21 Options Code Plugs
CONN 25 Customer Data Connection
C-4
B
B-4
C
CONN 27
A-3
46
CONN 28
C-3
58
CONN 29
E-3
A
F-3
A
G-2
47
CONN 32
F-2
51
CONN 33
F-1, F-2
50
17
3
5
13
11
45
30
27 29
15
58
46 34
44
37
35 24
21
43
54
51 50 12
56 57 C
22
2
A
CONN 31
D
59
C
CONN 26
CONN 30
16
18
26
8
16
36 25 4
6
7
1
47
32
20
31
14
40 28
Ground Circuits
23 19
39
Control Circuits
E-1, E-2
50
CONN 35
E-1, D-2
50
202
BK
Transmission Control
720
PU
Transmission Neutralizer SW
CONN 36
E-1, D-2
50
250
BK
Payload Monitor - Customer Ground
727
GN
Secondary Steering Test SW
CONN 37
E-1, D-2
50
251
BK
Payload Monitor - System Ground
728
BU
Secondary Steering Interm. Relay
BK
CMS Ident Code 0
751
GN
Clutch 1 Solenoid (REV)
CONN 38
C-2
48
270
CONN 39
G-1
49
271
BK
CMS Ident Code 1
752
YL
Clutch 2 Solenoid (FWD)
CONN 40
G-1
49
272
BK
CMS Ident Code 2
754
BU
Clutch 3 Solenoid ((4TH)
CONN 41
I-1
50
273
BK
CMS Ident Code 3
755
OR
Clutch 4 Solenoid (3RD)
274
BK
CMS Ident Code 4
761
GY
Not Used
275
BK
CMS Ident Code 5
762
YL
Bucket Position Solenoid SW
290
BK
CMS Service
779
WH
Quick Coupler Engage Solenoid
291
BK
CMS Clear
795
YL
Dual Hp Solenoid
299
BK
WTL Implement Control Ground
E701
PK
Auto Ride Control SW
A201
BK
WTL Implement Control ID Code 1
E702
OR
Auto Ride Control SW
A202
BK
WTL Implement Control ID Code 2
E707
GN
Quad Gage ( =V Display)
Machine Harness Connector And Component Locations
CONN 42 H-9 C 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.
Component Location Component Actuator - Blend Door
Related Electrical Service Manuals Title Alternator:
Form Number 107-7977
Caterpillar Monitoring System:
Schematic Location
Machine Location
H-11
56
Schematic Location
Machine Location
A203
BK
WTL Implement Control ID Code 3
E708
PK
Quad Gage (Clock)
Sensor - Input Speed
B-13
26
A204
BK
WTL Implement Control ID Code 4
E735
PU
Service Meter/Odometer Select SW
Component
Actuator - Hood As.
A-14
1
Sensor - Lift Cylinder Head End Pressure
G-1
23
A205
BK
WTL Implement Control ID Code 5
F781
BR
Downshift SW
Actuator - Water Valve
H-11
56
Sensor - Lift Lever Position
F-7
C
A272
BK
Implement Control B-
F783
GN
Upshift SW
Alarm - Action
E-10
C
Sensor - Lift Position
I-1
24
A273
BK
MAC-14 Transmission Control B-
F784
YL
Down shift SW
SENR4757
Alarm - Backup
C-15
2
Sensor - Output Speed (Leading)
C-13
26
F785
WH
Upshift SW
SENR 1394
Alternator
D-15
3
Sensor - Output Speed (Trailing)
B-13
26
301
BU
Starter No. 1 Solenoid
F793
OR
Air Inlet Heater Relay
Basic Machine Circuits
Electric Starting Motor:
106-8558
Arc Suppressor (2)
E-6
A
Sensor - Pedal Position
B-3
C
304
WH
Starter Relay No. 1 Output
G746
WH
Pedal Position Sensor
Consist:
106-8557
SENR3559
Arc Suppressor (A/C Clutch Coil)
B-15
27
Sensor - Tilt Lever Position
F-7
C
306
GN
Starter Relay Coil To Neut Start SW
G750
BU
Transmission Forward SW
Consist:
106-8559
SENR3581
Arc Suppressor (Flasher)
F-10
C
Sensor - Transmission Oil Temperature
B-13
26
307
OR
Key Start SW To Neutral Start SW
G755
GY
Transmission Reverse SW
SENR6614
Arc Suppressor (Quick Coupler Solenoid)
F-1
51
Solenoid - (1) ECPC Transmission Reverse
C-14
26
308
YL
Main Power Relay Coil
G763
PU
Transmission Neutral SW
Arc Suppressor(Sec. Steer. Motor Relay)
B-2
32
Solenoid - (2) ECPC Transmission Forward
C-14
26
310
PU
Start Aid SW To Start Aid Solenoid
G764
PK
Transmission Park Brake SW
F-14,F-15
4
Solenoid - (3) ECPC Transmission 4
C-13
26
311
WH
Start Aid Solenoid To Temperature SW
G766
GN
Auto Ride Control SW
A-14
5
Solenoid - (4) ECPC Transmission 3
C-13
26
321
BR
Backup Alarm Lamp Travel Alarm
G767
WH
Auto Ride Control SW
26
322
GY
Warning Horn (Forward)
H708
OR
Implement Control Kickout Set SW (N/O)
RD
Key Start SW "C" Term
H709
BU
Implement Control Kickout Set SW (N/C)
Payload Control System Power Train ECM:
SENR1380
Batteries
950G and 962G Wheel Loader Hyd. System System Operation: Testing and Adjusting:
SENR 1389 RENR 2146
Block - Terminal Block Assembly
Number
Solenoid - (5) ECPC Transmission 2
C-13
Breaker - Alternator
A-15
5
Solenoid - (6) ECPC Transmission 1
C-13
26
Breaker - Circuit
E-11
C
Solenoid - A/C Clutch Coil
B-15
27
334
BU
AIH Relay
H710
PK
Implement Control Lift Lever Position
Breaker - Hood
A-14
5
Solenoid - Aux Lift Proportional
G-1
31
397
OR
Hood Raise Motor
H711
GN
Implement Control Tilt Lever Position
31
398
BU
Hood Raise Motor
H713
PK
Implement Control Lift Proportional Solenoid
28
A300
GN
Hood Raise Relay Coil
H714
OR
Implement Control Lower Proportional Solenoid
A301
WH
Hood Raise Relay Coil
H715
PU
Implement Control Lower Kickout Solenoid
H716
WH
Implement Control Solenoid Return
Breaker - Running Lamp
Service Mode
46
326
Breaker - Main
Monitoring System Service Modes
D-15
A-15 A-14
5 5
Solenoid - Aux Lower Proportional Solenoid - Axle Oil Cooler Clutch
H-1 C-14
Cigar Lighter
F-8
A
Solenoid - Dual HP
C-15
27
Control - Caterpillar Monitoring System
E-5
A
Solenoid - Dump Proportional
H-1
31
Control - Dimmer
E-11
C
Solenoid - Lift Lever K.O. Detent
F-7
31
403
GN
Alternator (R) Term
H717
BR
Implement Control Pilot On/Off Solenoid
GY
Operator Monitor Oil Press (Low Setting)
H719
OR
Implement Control Lift Kickout Solenoid
Control - Electronic Implement
I-7
D
Solenoid - Lift Lever Lower Detent
F-7
31
405
Control - Powertrain
I-10
57
Solenoid - Lift Proportional
G-1
31
410
WH
Operator Monitor Action Alarm
H720
BU
Implement Control Tilt Lever Bucket solenoid
PK
Operator Monitor Action Lamp
H728
GN
Auto/Man SW Auto 3
Control - Water Valve/Blend Door
G-11
A
Solenoid - Lower Proportional
H-1
31
411
Control - WLPCS ECM
C-4
59
Solenoid - On/Off Pilot
G-1
8
416
OR
Secondary Steering SW
H729
WH
Auto/Man SW Auto 4
417
GY
Primary Steering SW
H730
PK
Auto/Man 1-4
419
YL
Parking Brake Pressure SW
818
BR
Serial Data (Transmit)
432
PK
Brake Oil Pressure SW
819
GY
Serial Data (Receive)
441
OR
Engine Coolant Temperature Sensor
900
PU
Transmission Control Clutch 5 Solenoid (2ND)
442
GY
Hydraulic System Temperature Sensor
901
WH
Transmission Control Clutch 6 Solenoid (1ST)
443
YL
Torque Conv. Oil Temperature Sensor
910
YL
Transmission Control Neutralizer Override Indicator
447
PK
Fuel Level Sensor
944
OR
Data Link + (CAT)
450
YL
Engine Speed Sensor
945
BR
Data Link - (CAT)
453
PK
Secondary Steering Pressure SW
964
BU
Not Used
Converter - Voltage
H-5
B
Solenoid - Quick Coupler
F-1
51
Operator Mode Sequence
0
Flasher
F-10
A
Solenoid - Rackback Proportional
G-1
31
Harness Code
1
Fuses
A-14
5
Solenoid - Ride Control
G-1
31
2
Fuses
D-11
C
Solenoid - Shutdown
C-15
29
Service
3
Gauge - Quad
E-4
A
Solenoid - Start Aid
F-14
30
Tattletale
4
Units
5
Numeric Readout
Calibration
6,7,8
Monitoring System Operator Modes Operator Mode
Ground - Cab Ground - Cab Ground - Cab Ground - Cab Ground - Engine Block
A-8 F-10 H-8
D 57 57
Solenoid - Tilt Lever Bucket K.O. Detent Stud - Terminal Switch - A/C Refrigerant
F-7 D-11 B-15
31 C 27
H-10
57
Switch - Auto Ride Control
B-5
D
D-15, D-14
9
Switch - Auto/Manual Gear Select
B-6
D
C-14
33
B-9
D
Number
Ground - Engine Cyl Head
D-14
11
Switch - Axle Oil Cooler Temperature
0
Ground - Left Frame Boss
E-14
6
Switch - Beacon
Service Meter
1
Ground - Right Rear Frame
B-15
7
Switch - Blower
B-8
D
Tachometer
2
Ground - Steer Column
E-5
A
Switch - Brake Oil Pressure
H-2
34
Scrolling
3
Ground - Strap (Frame to Cab)
Odometer
Ground - Strap (Implement ECM) Ground - Strap (Powertrain ECM)
Machine Codes Machine
Code 7,13,15,38
962G
14
16800
Fault Battery Voltage Too High
I-10
C 57
Switch - Bucket Positioner Switch - Dimmer Switch - Disconnect
I-1 B-3 B-15
35 58 36
11
Switch - Downshift
G-5
46
Horn - Forward
E-1
12
Switch - Engine Oil Pressure
C-14
37
Horn - Forward
H-1
12
Switch - Ether Aid (Momentary)
G-5
A
Horn - Forward
I-1
12
Switch - Ether Aid Coolant
D-15
22
Horn - Forward (2)
F-2
12
Switch - Forward Horn
G-4
A
Lamp - Action
D-4
46
Switch - Forward/Neutral/Reverse
G-5
A
Motor - Blower
G-11
56
Switch - Front Axle Temperature
F-2
39
A-3
16
Switch - Front Intermittent Wiper
B-4
D
Motor - Front Wiper
D-5
A
Switch - Hazard Lamp
G-8
B
Motor - Priming Pump
B-14
13
Switch - Hood Actuator
A-14
40
Motor - Rear Washer
A-3
16
Switch - Hydraulic Filter Bypass
A-3
16
Motor - Rear Wiper
F-10
C
Switch - Hydraulic Oil Level
A-2
19
Motor - Secondary Steering Motor/Pump
B-2
19
Switch - Implement Function Select
F-9
C
D-14
15
Switch - Implement Lockout
F-8
C
Motor - Hood Actuator
Code
I-9
8
D-14
Motor - Starter
Payload Control Fault Codes
G-12
Heater - Air Inlet
Motor - Front Washer
950G
A-14
1
Switch - Keystart
D-5
A
Quad Gauge
F-4
A
Switch - Lift Kickout Set
G-8
B
Radio
H-5
A
Switch - Park Brake Oil Pressure
H-2
A
Relay - AIH
B-14
17
Switch - Primary Steering Pressure
B-2
14
Relay - Backup Lamp
I-15
25
Switch - Quick Coupler
B-7
C
Relay - Front Flood
E-10
C
Switch - Rear Axle Temperature
C-14
33
Relay - Hood Raise/Lower
B-13
5
Switch - Rear Wiper
C-9
D
Relay - Main
B-15
5
Switch - Running/Work/Panel/Tail
C-8
D
Relay - Rear Flood
E-11
C
Switch - Secondary Steering Pressure
B-2
14
Relay - Secondary Steering
B-2
14
Switch - Secondary Steering Test
H-8
B
16801
Battery Voltage Too Low
Relay - Secondary Steering Intermediate
F-11
C
Switch - Selector (A/C, Off, HTR)
B-9
D
25413
PCS Not Calibrated
Relay - Start
B-14
5
Switch - Stop Lamp
B-3
C
35001 35002
Position Sensor Out of Range Loss of Position Sensor Signal
Resistor Sender - Fuel Level
G-11 H-2
56 18
Switch - Tach/Speedo/Serv Meter Select Switch - Transmission Neutralizer
G-5 B-5
A D
Pressure Sensor Out of Range
Sender - Hydraulic Temperature
A-3
19
Switch - Turn Signal
F-6
A
36402
Loss of Pressure Sensor Signal
Sender - Torque Converter Oil Temp
B-14
20
Switch - Upshift
G-5
A
76901
Pressure Sensor Out of Range
Sensor - 3rd Lever Position
76902
Loss of Pressure Sensor Signal
81704
Backup Battery Error
36401
81708
Real Time Clock Not Running
82002
Loss of Keypad Data Link
Monitoring Circuits
Sensor - 4th Lever Position
F-9
C
Switch - Variable Shift Control
B-6
A
F-9
C
Tach/Speedometer
E-4
A
Sensor - Coolant Temperature
D-15
22
WLPCS Keypad
C-4
A
Sensor - Engine Speed
B-14
21
Machine locations are repeated for components located close together. A = Located inside of cab. B = Located inside of left console. C = Located around relay panel. D = Located inside right console.
484
YL
Primary Steering Pressure SW
496
WH
Hydraulic Oil Level SW
499
GY
Implement Oil Filter Bypass SW
C413
YL
C414
973
BR
Pressure Symbol
CST Autoshift- Solenoid Return
WH
976
OR
Ride Control Solenoid 1
Module Data
977
YL
CST Autoshift- Auto/Manual SW 1
BU
Module Load
987
WH
Spare
E416
PU
PMS Lift Cylinder Press Sensor
E900
WH
ECPC Trans Output Speed +
G454
PK
Pump Drive Oil Temperature
E901
GN
ECPC Trans Output SPEED -
G485
BU
Front Axle Temperature SW
E902
PU
ECPC Trans Intermediate Speed Leading +
G486
GN
Rear Axle Temperature SW
E903
YL
ECPC Trans Intermediate Speed Leading -
E904
BR
ECPC Trans Intermediate Speed Trailing +
500
BR
Wiper - Front (Park)
E905
BU
ECPC Trans Intermediate Speed Trailing -
501
GN
Wiper - Front (Low)
E906
OR
ECPC Trans Output Speed Trailing +
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. This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine. 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.
950G and 962G Wheel Loader Electrical System 950G: 2JS1500-UP 4BS707-UP 6NS400-UP
Pin
Single Wire Connector
AA
105-9344
1 Receptacle
Wire Gauge Plug
Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
1 2
2
200-BK-14
1 2
Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
Printed in U.S.A.
© 2002 Caterpillar All Rights Reserved
Component Identifiers (CID¹) Module Identifier (MID²) Caterpillar Monitoring System (MID No. 030)
Off Machine Switch Specification Part No. 114-5333 155-8998 155-8999 174-4312 175-3244
Function
3E-6449 3E-6450 3E-6455 7X-8549
Engine Oil Pressure Sensor
0296
Powertrain Electronic Control Module
0110
Engine Coolant Temperature Sensor
0350
Lift Linkage Position Sensor
0177
Torque Converter Oil Temperature Sensor
0352
Lift Lever Position Sensor
0248
Data Link
0353
Tilt Lever Position Sensor
0263
Sensor Power Supply
0354
Raise Solenoid
0271
Action Alarm
0355
Lower Solenoid
A-B, Normally Open A-C, Normally Closed
0324
Action Lamp
0356
Dump Solenoid
0427
Front Axle Oil Temperature Sensor
0357
Rackback Solenoid
A-B, Normally Open A-C, Normally Closed
0428
Rear Axle Oil Temperature Sensor
0358
Pilot Pressure Solenoid
0600
Hydraulic Oil Temperature Sensor
0359
Raise Detent Electromagnet
Normally Closed
0819
Display Data Link
0360
Lower Detent Electromagnet
0821
Display Power Supply
0361
Rackback Detent Electromagnet
0826
Torque Converter Oil Temperature Sensor
0365
Kickout Set Switch
0830
Brake Oil Temperature Sensor
0487
3rd Lever Position Sensor
0489
Implement Function Select Switch
0490
Implement Lockout Switch
0491
3rd Function Forward Solenoid
0492
3rd Function Rearward Solenoid
0596
Implement Control
0687
Option ID Code
(149 ± 37.4°F) 125 ± 3.0°C
(136.4°F Min) 117°C Min
(257 ± 37.4°F) 8270 kPa MAX
(242.6°F Min) 6890 ± 345 kPa
(1200 psi MAX) 10700 kPa MAX
(1000 ± 50 psi) 8960 ± 537 kPa
(1550 psi MAX) 38 ± 3°C
(1300 ± 79 psi) 27°C Min
(100 ± 37.4°F) 1200 kPa MAX
(80.6°F Min) 700 ± 100 kPa
A-B Normally Open
(174.0 psi MAX) 90 ± 21 kPa
(102 ± 14.5 psi) 70 ± 21 kPa
A-C Normally Closed A-B Normally Open
(13 ± 3.0 psi) 110.3 - 137.9 kPa³
(13 ± 3.0 psi) 86.2 - 103.4 kPa³
A-C Normally Closed
Brake Oil Pressure Start Aid Coolant (Temperature) Primary Steering Pressure Secondary Steering Pressure
Hydraulic Filter Bypass Pressure
Harness Code
0100
58°C Min
Park Brake Pressure
Engine Oil Pressure
CAT Data Link
0270
(39.9 to 253.8 psi) 65 ± 3.0°C
Rear Axle Temperature Front Axle Temperature
Contact Position Normally Open² Normally Open Normally Closed
Normally Open
(16 - 20 psi) (12.5 - 15) ¹ A hysteresis band exists: 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 position at the contacts of the harness connector. ³ Specifications represent a differential pressure measurement.
GY
ECPC Trans Output Speed Trailing -
BR
ECPC Trans Input Speed +
504
YL
Wiper - Rear (Low)
E909
WH
ECPC Trans Input Speed -
505
BU
Wiper - Rear (Hi)
E917
WH
Implement Lockout SW (N.O.)
506
PU
Washer - Front
E918
GN
Implement Lockout SW(N.C.)
Part No.
507
WH
Washer - Rear
E919
YL
AUX Lift Proportional Solenoid
106-5122
508
PU
Radio Speaker - Left
E920
BR
AUX Lower Proportional Solenoid
129-7707
509
WH
Radio Speaker - Left (Common)
E921
PK
Rackback Proportional Solenoid
511
BR
Radio Speaker - Right
E922
GN
Dump Proportional Solenoid
Lower Prop
512
GN
Radio Speaker - Right (Common)
E955
OR
WLPMS Keypad Data
Aux Lower Prop
Component Electrical System Voltage
0248
-
Axle Oil Cooler Temperature
Component
CID 0168
Fuel Level Sender
Deactuate
A/C (High / Low) Pressure
CID
Electronic Implement Control (MID No. 082)
0096
Actuate 275 to 1750 kPa¹
E908
517
Fuse
Pin or Socket Number
E907
GY
Circuit Number Identification
Ground Connection
Wiper - Rear (Park)
GN
Wire Color
325-PK-14
Wiper - Front (Hi)
516
Socket
Component Part Number
Wire, Cable, or Harness Assembly Identification A
BR
515
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.
Harness And Wire Symbols
OR
A/C Compressor/Refrigerant Pressure SW
T
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.
503
OR
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.
962G: 3BS800-UP 5AS401-UP 5RS403-UP
502
Payload Control System (MID No. 074) CID
Component
0168
Electrical System Voltage
0254
Payload Electronic Control Module
0350
Lift Linkage Position Sensor
0364
Head End Lift Cylinder Pressure Sensor
0769
Rod End Lift Cylinder Pressure Sensor
0817
Internal Backup Battery
0820
Keypad Data Link
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.
Electronic Transmission Control System (MID No. 081)
Resistor, Sender and Solenoid Specifications
CID 0041
Sensor Power Supply Voltage
Solenoid: A/C Clutch Coil Assembly
17.6 ± 0.6
0070
Parking Brake Switch
Solenoid: Dual HP
31.1 ± 2.4
0149
Ride Control Solenoid 2
0168
Electrical System Voltage
0177
Transmission Oil Temperature Sensor
0190
Engine Speed Sensor
0270
Caterpillar Monitoring System Harness Code
0363
Ride Control Solenoid 1
0367
Ride Control Switch
Dump Prop
138-2924
Solenoid:
PK
Transmission Control Engine Speed Return
Blower Motor (Hi)
G940
PU
Not Used
Lift Prop
Blower Motor (Medium)
G941
GY
Not Used
Aux Lift Prop
BU
Blower Motor (Low)
G942
OR
Implement 3rd Lever Position Sensor
152-5409
Solenoid: Axle Oil Cooler Clutch Assembly
518
OR
Hazard Flasher To SW
G943
BU
Implement Function Select SW (N.O.)
152-6761
521
YL
A/C SW To Refrigerant SW
G944
YL
Implement Function Select SW (N.C.)
152-8340
522
WH
A/C Clutch To Thermostat SW
G947
WH
Implement 4th Lever Position Sensor
537
GN
Turn Signal SW To Flasher
K933
GN
Coolant Temperature Sensor
157-8857
Component
Resistance (Ohms)¹
Component Description
G939
513
Circuit Breaker Symbol
Flow Symbol
Level Symbol
Temperature 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.
CST Autoshift- Auto/Manual SW 2
975
Accessory Circuits
T
Lighting Circuits
CONN 34
33
Electrical Schematic Symbols And Definitions
RENR 4327 February 2002
Accessory Circuits (Continued)
Power Circuits
34
Description
Rackback Prop
7.75 ± 1.0
Failure Mode Identifiers (FMI)¹ FMI No.
Failure Description
0
Data valid but above normal operational range.
1
Data valid but below normal operational range.
2
Data erratic, intermittent, or incorrect.
0368
Transmission Auto/Manual Switch
9.4 ± 5
3
Voltage above normal or shorted high.
0444
Start Relay Magnetic Switch
4
Voltage below normal or shorted low.
Solenoid: On / Off Pilot
32.6 ± 1.6
0562
Caterpillar Monitoring System
5
Current below normal or open circuit.
Solenoid: Ride Control
32.6 ± 1.6
0585
Transmission Output 1 Speed Sensor
6
Current above normal or grounded circuit.
Full: 0 to 3.5
0617
Air Inlet Heater Relay Magnetic Switch
7
Mechanical system not responding properly.
Empty: 92 to 98
0621
Downshift Switch
8
Abnormal frequency, pulse width, or period.
9
Abnormal update.
0622
Upshift Switch
10
Abnormal rate of change.
Sender: Fuel Level
538
BR
Hazard Indicator
K977
PK
Transmission Oil Temperature Sensor
Reverse: (Sol. 1)
539
BU
Turn Signal Indicator Right
N939
GN
Ride Control Solenoid 2
Forward: (Sol. 2)
0623
Directional Switch
11
Failure mode not identifiable.
540
WH
Turn Signal Indicator Left
P910
BR
Secondary Steering Test SW
Fourth: (Sol. 3)
0631
Transmission Clutch 1 Solenoid
12
Bad device or component.
0632
Transmission Clutch 2 Solenoid
13
Out of calibration.
14
Parameter failures.
15
Parameter failures.
16
Parameter not available.
17
Module not responding.
A513
PK
DC/DC Converter Memory Output
P976
BR
160-8408
Solenoid:
Quick Coupler Solenoid
0633
Transmission Clutch 3 Solenoid
0634
Transmission Clutch 4 Solenoid
0635
Transmission Clutch 5 Solenoid
0636
Transmission Clutch 6 Solenoid
18
Sensor supply fault.
0668
Shift Lever Transmission Control
19
Condition not met.
0672
Torque Converter Output Speed Sensor
20
Parameter failures.
0673
Transmission Output 2 Speed Sensor
0674
Transmission Intermediate 1 Speed Sensor
0675
Transmission Intermediate 2 Speed Sensor
0688
Dual Horsepower Solenoid Valve
0793
Primary Steering Pressure Switch
0794
Secondary Steering Pressure Switch
0795
Secondary Steering Intermediate Relay
1327
Left Brake Pedal Position Sensor
1521
Variable Shift Control Rotary Switch
A523
PU
Temperature Potentiometer Position 1
X972
GN
Variable Shift Control (Power)
Second: (Sol. 5)
A524
BR
Temperature Potentiometer Position 2
X973
BU
Variable Shift Control (Moderate)
First: (Sol. 6)
A525
GN
Temperature Potentiometer Position 3
BR
Variable Shift Control (Economy)
A526
PK
Electronic Water Valve Actuator
X974
8.7 ± .4
Third: (Sol. 4)
185-2270
Solenoid: Quick Coupler
3E-6332
Solenoid: Start Aid
3E-9366
Lift Lever K.O. Detent Solenoid: Lift Lever Lower Detent Tilt Lever Bucket K.O. Detent
4W-9972 8C-3663 9G-1950 ¹ At room temperature unless otherwise noted.
Sender:
Torque Converter Oil Temperature Hydraulic Temperature
Solenoid: Shutdown Resistor: A/C, Heater Blower Motor
24.9 ± 0.4 6 137 ± 6.7 560 to 716 @ 54°C (130°F) 72 to 82 @ 110°C (230°F) 1.55 ± 0.15 10.3 ± 1.03 Overall 2.0 ± 0.1 Tap 1.0 ± 0.05
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.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.