Cat 966G & 972G Wheel Loaders Electrical System Schematic Manual - PDF DOWNLOAD

CONN 1

H-15

55

CONN 2

A-15

54

CONN 3

C-15

2

Wire Description Chart

Component Location

Machine Location

Schematic Location H-11

Component Actuator - Blend Door

Part No. 126-5611

Machine Location 56

Schematic Location B-15

Component Sender - Torque Converter Oil Temp

Part No. 4W-9972

Machine Location 20

Wire Number

Wire Color

101 102 105 107 108 109 112 113 114 118 120 122 123 124 126 127 128 129 130 133 134 135 136 138 141 144 146 158 167 175 177 188 199

RD RD RD RD BU RD PU OR GN GY YL BU WH GN PK OR PK BU RD OR YL BU GN GN RD GN GY BR OR PK OR WH RD

200 201 202 250 251 270 271 272 273 274 275 290 291 299 A201 A202 A203 A204 A205 A219 A272 A273

BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK BK

304 306 307 308 310 311 321 322 326 327 334 373 397 398 A300 A301

WH GN OR YL PU WH BR GY PU PK BU GN OR BU GN WH

403 405 410 411 416 417 419 432 441 442 443 447 450 453 484 496 499 C413 C414 E416 G485 G486

GN GY WH PK OR GY YL PK OR GY YL PK YL PK YL WH GY YL BU PU BU GN

500 501 502 503 504 505 506 507 508 509 511 512 513

BR GN OR BR YL BU PU WH PU WH BR GN OR

Actuator - Hood As.

A-14

116-6844

1

Sensor - Engine Speed

C-14

6V-2455

21

Actuator - Water Valve

H-11

126-5610

56

Sensor - Input Speed

B-13

3E-8848

26

CONN 4

F-15,I-15

53

Alarm - Action

E-10

3E-6328

C

Sensor - Lift Cyl Head End Press

D-1

124-4672

23

CONN 5

D-14

44

Alarm - Backup

C-15

123-6449

2

Sensor - Lift Linkage Rotary Position

F-1

161-8904

24

CONN 6

A-13

C

Alternator

C-15

107-7977

3

Sensor - Tilt Lever Pos

F-7

106-4437

E

CONN 7

B-13

C

26

CONN 8

F-12

45

CONN 9

E-12

45

CONN 10

D-12

45

CONN 11

C-12

45

CONN 12

C-11

C

CONN 13 HVAC Unit

G-10

56

CONN 14 Service Tool

F-10

C

CONN 15 Monitor Harness

Batteries

F-15

115-2422

4

Sensor - Torque Conv Output Speed

B-13

3E-8848

Breaker - Alt

A-14

9S-4693

5

Sensor - Tran Intermediate Speed Sensor 1

B-13

3E-8848

26

Breaker - Engine Shutdown

B-14

6T-3643

5

Sensor - Tran Intermediate Speed Sensor 2

B-13

3E-8848

26

Breaker - Hood

B-13

6T-3644

5

Sensor - Tran Output Speed Sensor 1

C-13

3E-8848

26

Breaker - Main

B-14

9S-4693

5

Sensor - Tran Output Speed Sensor 2

B-13

3E-8848

26

Breaker - Running Lamp

B-14

3T-2662

5

Sensor - Trans Oil Temp

B-13

100-3055

26

Breakers - 15A

D-11

6T-3643

C

Solenoid - A/C Clutch

B-15

3E-1906

27

E-5

155-1615

A

Solenoid - Start Aid

I-5

3E-6332

C

Control - Power Train ECM

I-10

160-1758

57

Solenoid - Shutdown

D-14

110-6465

15

Control - Water Valve/Blend Door

G-11

126-6010

A

Solenoid Valves - Ride Control

D-1

3E-8574

31

Control - Cat Monitoring System

H-9,l-13

C

CONN 16 Service Mode

H-9

C

CONN 17

E-8

57

CONN 18

E-8

57

Control - WLPCS ECM

C-4

112-1572

59

Solenoids - Clutch Modulating Valve

C-13

159-0932

26

H-5

119-1733

B

Stud - Terminal

D-11

9G-8451

C

E-11

103-5526

C

Suppressors - Arc

E-6

106-8704

A 27

CONN 19

D-8

57

Converter - Voltage

CONN 20

D-8

57

Dimmer - Control

CONN 21 Option Code Plug

I-7

C

Flasher

F-10

120-4537

C

Switch - A/C Refrigerant

D-15

114-5333

CONN 22

F-6

A

Fuses

A-13

3K-8782

5

Switch - AIH

G-5

112-6169

A

CONN 23

I-4

C

Fuses - 10A

D-11

3K-8782

C

Switch - Auto Ride Control

B-5

103-6333

D

CONN 24

G-4

A

Fuses - 15A

D-11

8M-8948

C

Switch - Auto/Manual

B-6

123-6383

D

CONN 25 Customer Data

C-4

C

Gauge - Quad

E-4

100-5895

A

Switch - Beacon

B-9

9X-9639

D

CONN 26

B-4

D

Ground - Cab

A-8

D

Switch - Blower

B-9

3E-7156

D

CONN 27

A-3

46

Ground - Cab

F-10

57

Switch - Brake Oil Pressure

I-4

3E-7693

34

CONN 28

A-3

46

Ground - Cab

H-8

57

Switch - Bucket Positioner

F-1

164-3583

35

57

Switch - Dimmer

C-3

2H-1855

58

CONN 29

B-3

62

Ground - Cab

H-10

CONN 30

E-3

61

Ground - Left Frame Boss

E-14

6

Switch - Disconnect

B-15

7N-0718

36

CONN 31

F-3

61

Ground - Left Front

H-5

C

Switch - Engine Oil

B-14

9X-0378

37

CONN 32

I-3

34

Ground - Right Rear Frame

A-15

7

Switch - Forward Horn

G-4

21-3360

A

A

Switch - Front Axle Temp

D-1

155-8999

39

8

Switch - Front Wiper

B-4

110-7886

D

9

Switch - Hazard lamp

G-9

112-6167

B

CONN 33

I-2,I-1,H-1,G-2

60

CONN 34

I-2,I-1,H-1,G-2

60

CONN 35

H-2,G-2,D-2

47

CONN 36

D-2

31

CONN 37

D-1

23

Ground - Steer Column

CONN 38 F-1 35 ¹ 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.

E-5

Ground - Strap Frame to Cab

G-12

Ground - To Engine

C-15

Ground - To Engine Block

D-14

8X-5804

10

Switch - Hood Actuator

A-14

146-0240

40

Horn - Forward

I-2

4Y-7882

1

Switch - Hyd Oil Level

A-2

123-2993

19

Horns - Forward

F-1

7T-0970

12

Switch - Key Start

D-5

9G-7641

A

Horns - Forward

I-1

7T-0970

12

Switch - Neutralizer

C-3

105-6118

58

Keypad - WLPCS

B-4

129-0419

59

Switch - Park Brake Oil Pressure

I-4

3E-6452

42

Motor - Actuator

A-14

117-1557

1

Switch - Primary Steer

I-3

3E-6450

C

Motor - Blower

G-11

3E-6392

56

Switch - Rear Axle Temp

C-14

155-8999

33

Motor - Front Wiper

D-5

147-7973

A

Switch - Rear Wiper

C-9

112-6174

D

Motor - Rear Wiper

F-10

137-8709

C

Switch - Run/Work/Panel/Tail

C-8

108-3320

D

Motor - Sec Steer

H-4

154-2563

C

Switch - Sec Steer Test

H-8

143-3001

B

Motor - Starter

D-14

6V-5227

15

Switch - Secondary Steer

I-3

3E-6450

C

Motors - Washers

A-3

7T-8890

16

Switch - Selector AC/Heat

B-9

3E-7155

D

Relay - Backup Lamp

I-15

4Y-6135

25

Switch - Service Brake Pedal As.

B-3

110-8029

58

Relay - Front Flood

E-10

3E-5239

C

Switch - Start Aid

G-5

3E-7176

A

Relay - Hood Raise Lower

A-14

149-2612

5

Switch - Start Aid Coolant

B-15

3E-6425

22

Relay - Main

A-14

101-7740

5

Switch - Stop Lamp

B-3

3E-5520

60

Relay - Rear Flood

E-11

3E-5239

C

Switch - Tach/Speedo/Serv Meter

G-5

112-6171

A

Relay - Sec Steering Intermediate

F-11

3E-5239

C

Switch - Temp Selector

B-9

127-4540

D

Relay - Start Magnetic Switch

B-14

125-1302

5

Switch - Thermostat

G-11

3E-5464

56

Resistor - Blower

G-11

9G-1950

56

Switch - Tran Neutralizer Override

B-5

112-6156

D

Sender - Engine Coolant Temp

B-15

7N-8532

A

Switch - Turn Signal

F-6

134-9569

A

Sender - Fuel Level

C-15

134-3033

2

Tach/Speedometer

E-4

153-8061

A

Sender - Hyd Temp

A-3

4W-9972

19

Machine locations are repeated for components located close together.

53

C = Operator Compartment - Relay/Fuse Panel

B = Operator Compartment - Left Overhead Console

D = Operator Compartment - Right Overhead Console

515 516 517 518 521 522 537 538 539 540 A513 A523 A524 A525 A526 A527 A541 A592 A593 A594 A595 A596 C529 C530

GY GN BU OR YL WH GN BR BU WH PK PU BR GN PK BU PU BU OR WH GN YL GY BU

603 604 605 606 608 610 611 612 614 615 617 619 633 646 647 661 662 663 691 692

PK OR YL GY GN OR PU GY PU YL BR GN BU OR GN GN YL GY GY YL

709 720 727 728 751 752 754 755 761 762 795 E701 E702 E707 E708 E735 F781 F783 F784 G750 G755 G761 G762 G763 G764 G766 G767 H713 H714 H715 H716 H717 818 819 900 901 910 944 945 973 975 976 977 E900 E901 E902 E903 E904 E905 E906 E907 E908 E909 E917 E918 E919 E920 E921 E922 E923 E924 E925 E926 E927 E928 E930 E936 E955 G939 K933 K977 N939 P910

OR PU GN BU GN YL BU OR GY YL YL PK OR GN PK PU BR GN YL BU GY YL BR PU PK GN WH PK OR PU WH BR BR GY PU WH YL OR BR BR WH OR YL WH GN PU YL BR BU OR GY BR WH WH GN YL BR PK GN PK YL OR BU GN WH BU WH OR PK GN PK GN BR

Power Circuits Bat(+) Hd Lmp Key Start Sw Eng Shut-Down Fire Suppr Aux Ckt Alt Output (+) Term.

Main Power Rly Output Opr Mon Panel VMIS B+ Switched Warning Horn (Forward) Aux Ckt Aux Ckt Aux Ckt Aux Ckt A/C Xmsn Ctrl Aux Ckt Aux Ckt Aux Ckt Aux Ckt Aux Ckt Aux Ckt Aux Ckt Sec Ster Auto Lube Pump To Payload Mon Aux Ckt Aux Ckt Aux Ckt Aux Ckt Aux Ckt Aux Ckt Main Brkr Aux Ckt Aux Ckt Ground Circuits Main Chassis Operator Monitor Return XMSN Ctrl Payload Mon - Customer Gnd Payload Mon - System Gnd CMS Ident Code 0 CMS Ident Code 1 CMS Ident Code 2 CMS Ident Code 3 CMS Ident Code 4 CMS dent Code 5 CMS Service CMS Clear WTL Impl Ctrl Gnd WTL Impl Ctrl Serv Mode SW to GND WTL Impl Ctrl Clear Fault SW to GND WTL Impl Ctrl ID Code 3 WTL Impl Ctrl ID Code 4 WTL Impl Ctrl ID Code 5 ETAC Ctrl Gnd Impl Ctrl BTrans Ctrl BBasic Machine Circuits Starter Relay No. 1 Output Starter Relay Coil To Neut Start SW Or Key Start SW Key Start SW To Neutral Start SW Main Power Relay Coil Start Aid SW To Start Aid Sol Start Aid Sol To Temp SW Backup Alarm Lamp Travel Alarm Warning Horn (Forward) Key Start SW “C” Term.

Shutdown Solenoid Start Aid Sol #2 Start Aid Switch To Timer Hood Raise Motor Hood Raise Motor Hood Raise Relay Coil Hood Raise Relay Coil Monitoring Circuits Alternator (R) Term.

Opr Mon Oil Press. (Low Setting) Opr Mon Action Alarm Opr Mon Master Sec Star SW Primary Ster SW Opr Mon Parking Brake Opr Mon Brake Press. (Oil) Eng Coolant Temp Gauge Hyd System Temp Gauge Power Train Temp Gauge Fuel Level Gauge Tach Sender (+) Sec Ster Action Lamp Primary Ster Lamp Opr Mon Panel Hyd Oil Level Opr Mon Implement Oil Filter Display Data Display Load PMS Lift Cyl Press Sensor Opr Mon Front Brake Temperature Opr Mon Rear Brake Temperature Accessory Circuits Wiper - Front (Park) Wiper - Front (Low) Wiper - Front (HI) Wiper - Rear (Park) Wiper - Rear (Low) Wiper - Rear (HI) Washer - Front Washer - Rear Radio Speaker - Left Radio Speaker - Left (Common) Radio Speaker - Right Radio Speaker - Right (Common) A/C Compressor/Refrigerant Pressure SW

3

22 2

9

54

27

10

36

A

26

C 5

20

12

62

21

7

35

E

45 57

1

39

60

D 61

46

23 31

59

40

Failure Mode Identifiers (FMI)¹

24 16

59

A

E

35 3

5

C

27 8

37

54

58

61

62

26 31

47 6

1

34

42

36

55

24

48

44

15 10

53

57 60

21

2

12

56

45

9

20 23

7

Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.).

No circle indicates that the wire cannot be disconnected from the component.

Ground (Wired): This indicates that the component is connected to a grounded wire. The grounded wire is fastened to the machine.

Ground (Case): 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.

966G and 972G Wheel Loader Electrical System 966G: AAH1-UP 3ZS1-UP 9RS1-UP

19

972G: 7LS1-UP 1EW1-UP AAW1-UP

Harness and Wire Symbols Wire, Cable, or Harness Assembly Identification: Includes Harness Identification Letters and Harness Connector Serialization Codes (see sample).

Electro Hydraulics and Command Control Steering

Component Identifiers (CID¹) and Module Identifier (MID²) For Power Train ECM (MID No. 081) Component

Machine Code

966G

18,20,42

972G

19,21

CID

Component

+8 Volts Sensor Supply

0168

0070

Parking Brake Switch

0248

Data Link

0149

Ride Control Solenoid #2

0270

Caterpillar Monitoring System Harness Code

0168

Electrical System Voltage

0296

Powertrain Electronic Control Module

0177

Transmission Oil Temperature Sensor

0350

Rotary Position Sensor (Lift Linkage)

0190

Engine Speed Sensor

0352

Position Sensor (Lift Lever)

0270

Cat Monitor System Harness Code

0353

Position Sensor (Tilt Lever)

0363

Ride Control Solenoid

0354

Solenoid Valve (Lift Linkage Raise)

Electrical System Voltage

0562

Unable To Communicate With Cat Monitor System

Voltage above normal or shorted high.

0585

Transmission Output Speed Sensor 1

4

Voltage below normal or shorted low.

0621

Downshift Switch

5

Current below normal or open circuit.

0622

Up Shift Switch

6

Current above normal or grounded circuit.

0623

Direction Switch

7

Mechanical system not responding properly.

0631

8

Abnormal frequency, pulse width, or period.

0632

9

Abnormal update.

0633

10

Abnormal rate of change.

11

Failure mode not identifiable.

Module not responding.

18

Sensor supply fault.

19

Condition not met.

20

Parameter failures.

E72059

Sales Model

Component Identifiers (CID¹) and Module Identifier (MID²) For Implement ECM (MID No. 082)

Data erratic, intermittent, or incorrect.

17

Code

Fault

16800

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

Loss of Pressure Sensor Signal

76901

Pressure Sensor Out of Range

76902

Loss of Pressure Sensor Signal

81704

Backup Battery Error

81708

Real Time Clock Not Running

82002

Loss Of Keypad Data Link

1 2

Sure-Seal connector: Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.

5A 9X-1123

Fuse (5 Amps)

Component Part Number

Harness identification code: This example indicates wire group 325, wire 135 in harness "AG".

Wire Gauge Wire Color

Printed in U.S.A.

Off Machine Switch Specifications

3

Parameter not available.

Deutsch connector: Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.

Part No.

2

16

1 2

© 2012 Caterpillar All Rights Reserved

Data valid but below normal operational range.

Parameter failures.

Receptacle Pin or Socket Number

325-AG135 PK-14

1

15

Part Number: for Connector Receptacle

Plug

Solenoid Valve (Lift Linkage Dump)

Parameter failures.

L-C12 3E-5179

Harness Connector Serialization Code: The "C" stands for "Connector" and the number indicates which connector in the harness (C1, C2, C3, ...).

2

Start Relay

14

L-C12 3E-5179

1

Part Number: for Connector Plug

0444

Out of calibration.

Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...)

AG-C4 111-7898

0357

Solenoid Valve (Tilt Linkage Tiltback)

0358

Solenoid Valve (Pilot Pressure Supply)

0359

Detent Coil (Lift Lever Raise)

0360

Detent Coil (Lift Lever Lower)

0361

Detent Coil (Tilt Lever Tiltback)

0365

Switch (Kickout Set)

0487

Position Sensor (Auxiliary Lever)

Transmission Clutch #1 Solenoid

0489

Switch (Function Select)

Transmission Clutch #2 Solenoid

0490

Switch (implement Lockout)

0491

Solenoid Valve (Auxiliary Lever Forward)

Transmission Clutch Solenoid #3

Function

Actuate

Deactuate

Contact Position

38 ± 3°C 27 °C MIN Normally Closed (100.4° ± 5.4°F) (80.6°F MIN) Primary Steering Oil Pressure 1200 kPa MAX 700 ± 100 kPa A-C, Normally Closed 3E-6450 Secondary Steering Oil Pressure (175 psi MAX) (100 ± 15 psi) A-B, Normally Open 8270 kPa MAX 6890 ± 345 kPa A-C, Normally Closed 3E-6452 Park Brake Oil Pressure (1200 psi MAX) (1000 ± 50 psi) A-B, Normally Open 10700 kPa MAX 8960 ± 345 kPa A-B, Normally Open 3E-7693 Service Brake Oil Pressure (1550 psi MAX) (1300 ± 50 psi) A-C, Normally Closed 62.0 kPa MAX 38.0 ± 20.0 kPa Normally Open 9X-0378 Engine Oil Pressure (9.0 psi MAX) (5.5 ± 3.0 psi) 275 to 1750 kPa ¹ 114-5333 Refrigerant Pressure (AC) Normally Open ² (40 to 255 psi) Rear Axle Temperature 125 °C ± 3 117 °C Min 155-8999 Normally Closed Front Axle Temperature (257.0 °F) (242.6 °F) Min 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.

3E-6425

Coolant Temperature (Start Aid)

Resistor, Sender and Solenoid Specifications

0634

Transmission Clutch Solenoid #4

0492

Solenoid Valve (Auxiliary Lever Rearward)

0635

Transmission Clutch Solenoid #5

0596

Harness Code Incorrect

0636

Transmission Clutch Solenoid #6

0668

Transmission Shift Lever

0672

Torque Converter Output Speed Sensor

Part No.

Component Description

Resistance (Ohms)¹

3E-1906

Solenoid - A/C Clutch

3E-6332

Solenoid Valve - Start Aid

17.6 ± 0.6

3E-8574

Solenoid Valve - Ride Control

34.3 ± 1.7

3E-9366

53.3 ± 2.7

6.0

0673

Transmission Output Speed Sensor

9G-1950

Solenoid - Bucket Lift,Lower,Tilt Detent Sender - Hydraulic Oil Temperature Engine Coolant Temp Torque Converter Temp Resistor - A/C, Heater Blower Motor

0674

Transmission Intermediate Speed Sensor 1

110-6465

Solenoid - Engine Shutdown

5.12 ± .26

0675

Transmission Intermediate Speed Sensor 2

121-4298

7.75 ± 1.0

0793

Primary Steering Pressure Switch

0794

Secondary Steering Pressure Switch

0795

Secondary Steering Intermediate Relay

Solenoid - Clutch Modulating Valves Sender - Fuel Level Full: Empty:

0687 Option Code incorrect 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.

Component Identifiers (CID¹) and Module Identifier (MID²) For Caterpillar Monitoring System (MID No. 030)

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.

Mode of Operation Normal Harness Code

CID

Component

0084

Ground Speed Sensor

0096

Fuel Level Sensor

0100

Engine Oil Pressure Sensor

0110

Engine Coolant Temperature Sensor

0177

Torque Converter Oil Temperature Sensor

0248

Data Link

Mode Number

0263

8 Volt Sensor Power Supply

0

0271

Action Alarm

0324

Action Lamp

0523

Engine Speed Sensor Hydraulic Oil Temperature Sensor

Monitoring System Mode

Payload Control Fault Codes

Machine Codes

Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is activated by electricity and held latched 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.

Solenoid Valve (Lift Linkage Lower)

33

Machine Harness Connector And Component Locations

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.

0356

¹The FMI is a diagnostic code that indicates what type of failure has occurred.

39

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.

0355

Bad device or component.

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

Transmission AUTO/MAN Switch

13

Circuit Breaker Symbol

Flow Symbol

Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The circle indicates that the component has screw terminals and a wire can be disconnected from it.

Ride Control Switch

12

Level Symbol

Fuse: A component in an electrical circuit that will open the circuit if too much current flows through it.

0368

Failure Description

Temperature Symbol

Symbols and Definitions

0367

0

B D

22

T

Data valid but above normal operational range.

FMI No.

19

55

Symbols

Pressure Symbol

0041

47

33 37

58

56

15

Accessory Circuits (Continued) Blower Motor (HI) Blower Motor (Medium) Blower Motor (Low) Hazard Flasher To SW A/C SW To Refrigerant SW A/C Clutch To Thermostat SW Turn Signal SW To Flasher Hazard Indicator Turn Signal Indicator Basic/Right Turn Signal Indicator Left DC/DC Converter Memory Output Temp Potentiometer Pos 1 Temp Potentiometer Pos 2 Temp Potentiometer Pos 3 Electronic Water Valve Actuator Electronic Water Valve Actuator Flasher To Indicator Lights Blend Door Motor (A) Blend Door Motor (B) Blend Door Position Feedback (+) Blend Door Position Feedback (Signal) Blend Door Position Feedback (-) Lift Press Sensor Lift Position Sensor Lighting Circuits Rotary Beacon Stop Lamp Turn Lamp - Left Turn Lamp - Right Flood Lamp - Rear Head Lamp Basic Head Lamp Hi Backup Lamp Park/Tail/Dash/Lamp Cab Flood Lamp/Rops Tail/Position Lamp - Left (Road Pkg)/Width Head Lamp Lo Attach Lighting Ckt Light SW To Front Flood Relay Light SW To Rear Flood Relay Tachometer Lamp Speedometer Lamp Gauge Lamps Warning Lights To Bkr Flasher Bkr To Flasher Control Circuits Sensor Power Supply XMSN Brake SW Sec Ster Motor Relay Sec Star Cont SW XMSN Shift Sol No. 1 Or 3 XMSN Shift Sol No. 2 XMSN Shift Sol No. 3 Or 1 XMSN Shift Sol No. 4 Or 5 Lift Kickout Sol SW Bucket Positioner Sol SW Dual Hp Sol Auto Ride Cntl SW Auto Ride Cntl SW Display +V Display Clock Tack/Serv Mtr/Odometer Select Downshift SW (N.O.) Upshift SW (N.C.) Downshift SW (N.C.) XMSN Cont Fwd SW To Gnd XMSN Cont Rev SW To Gnd XMSN Cont Speed 3 SW To Gnd XMSN Cont Speed 4 SW To Gnd XMSN Cont Neut SW To Gnd XMSN Cont PK Brk Lever SW To Gnd Impl Cont SW To Gnd N.O. Impl Cont SW To Gnd N.C. Impl Cont Lift Proportional Sol Impl Cont Lower Proportional Sol Impl Cont Lower Kickout Sol Impl Cont Sol Return Impl Cont Pilot Press Sol Serial Data (Transmit) Serial Data (Receive) XMSN Shift Sol No. 5 or 4 XMSN Shift Sol No. 6 XMSN Neutizer Override Indicator Data Link + (CAT) Data Link - (CAT) CST Autoshift- Auto/Manual SW 2 CST Autoshif t- Sol Return Ride Cont Solenoid 1 CST Autoshift- Auto/Manual SW 1 ECPC Trans Output SPD + ECPC Trans Output SPD ECPC Trans Intermediate SPD + ECPC Trans Intermediate SPD ECPC Trans Intermediate SPD Q+ ECPC Trans Intermediate SPD QECPC Trans Output SPD Q+ ECPC Trans Output SPD QECPC Trans Input SPD + ECPC Trans Input SPD Implement Lockout SW To GND (N.O.) Implement Lockout SW To Gnd (N.C.) Aux Lower Proportional Sol Aux Lift Proportional Sol Rackback Proportional Sol Dump Proportional Solenoid ETAC Front Left Wheel Proportional Solenoid ETAC Front Right Wheel Proportional Solenoid ETAC Rear Left Wheel Proportional Solenoid ETAC Rear Right Wheel Proportional Solenoid ETAC Test Mode SW (N/C) ETAC Test Mode SW (N/O) ETAC Front Axle Pilot Solenoid ETAC Solenoid Return WLPMS PHII Keypad Data Switch Return Stick 2 Bypass Sol ECPC Trans Oil Temp Sensor Ride Control Solenoid 2 Secondary Steering Test Sw Input

Harness And Wire Electrical Schematic Symbols

RENR2174-02 April 2012

Description

CID

B

44 6

4 40

Wire Color

8

25

25

Wire Number

34

42 4

E = Operator Compartment - Right Console

A = Operator Compartment - Dash Console

Description

1

Parameter Display

2

0600

Service

3

0601

Brake Air Pressure Sensor

Tattletale

4

0819

Display Data Link

Units

5

0821

9 Volt Display Power Supply

0830

Brake Oil Temperature Sensor

Calibration

6,7,8

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.

4W-9972

134-3033

54°C (130°F) - 560 to 716 110°C (230°F) - 72 to 82 Overall 2.0 ± .1; Tap 1.0 ± .05

27.5 - 39.5 240 - 260

¹ At room temperature.

Related Electrical Service Manuals Title

Form No.

Alternator: 107-7977

SENR4757

Caterpillar Monitoring System Electric Starting Motor: 6V-5227 Consist: 106-8552 Consist: 6V-5537 Consist: 6V-5538 Payload Control System

SENR1394

Power Train ECM 966G and 972G Wheel Loader Hyd. System System Operation Testing And Adjusting

SENR3536 SENR3581 SENR4975 SENR6614 SENR1380 RENR2114 RENR2148

(Dimensions: 39 inches x 24 inches)

Schematic Location

20 Page,

Connector Number

RENR2174-02

Connector Location ¹

614-PU-14 200-BK-14 LL

LL

614-PU-14 200-BK-14 LL

LL

1 2

V

CONN 2

RIGHT TURN LAMP 162-2073 V RD-18 1 606-GY-14 BK-18 2 200-BK-14

V V

R

80A

L96 101-RD-14 397-OR-14 A300-GN 200-BK-14 398-BU-14 175-RD-14 A301-WH

R R R R

1 2 3 4 5 6

OR-14 GN-18 BK-14 BU-14 RD-14 WH-18

RELAY

V

109-RD-4 101-RD-4

BK BK L96

177-RD-4 177-RD-8

R

R

R

308-YL 200-BK

MAIN RELAY 101-7740 112-PU-4

L95

L95

HOOD ACTUATOR AS. 124-4236 MOTOR AS. 117-1557

14

HOOD ACTUATOR SW 146-0240

1

107-RD-14 L110 130-RD 130-RD 102-RD-14 122-RD 114-RD 105-RD 109-RD-4 975-WH 304-WH-8 306-GN

308-YL 200-BK 112-PU-4

CONN 6

L71

3 2

L102

13

L4

102-RD-14 122-RD 122-RD L90 105-RD 102-RD-14

L63

L61

L61 L37

L71

L4

L89

L102

200-BK

A 2

C C

5

C

D C

C

3 C 4 6 C

C C

B A 2

C C

5

C

D

C

1 3 4

C

6

C

C

D

308-YL

200-BK 200-BK 200-BK

GN

H

MOTOR

B+

L27

L33

200-BK 633-BU-18

R

L44

P

FRONT WIPER 147-7973

C

144-GN 603-PK

122-RD

C

A C B

RD-18 WH-18 BK-18

RH HEADLINER

200-BK 539-GN-18

C

A219-BK-18 A219-BK-18

L31

614-PU 614-PU 200-BK-14 CAB GROUND

C

C

A219-BK-18 E928-WH-18 E927-GN-18 H728-GN-18 H729-WH-18 973-BR-18 977-YL-18 E701-PK-18 G766-GN-18 G767-WH-18 E702-OR-18 910-YL-18 720-PU-18

NOT USED

C

AUTO 4 3 2 MAN

C

1

2 3 4 5

2 3 4 5 1 6

BK BK BK BK BK

C

(CENTER)

1

1

(DOWN)

1

0 200-BK

200-BK 200-BK 614-PU 614-PU 202-BK-18 202-BK-18

973-BR-18 977-YL-18 H728-GN-18 H729-WH-18 202-BK-18

H728-GN-18 973-BR-18 977-YL-18 H729-WH-18 E701-PK-18 G767-WH-18 G766-GN-18 E702-OR-18

1

BACKLIGHT LAMP 7N-5876

P

C

C

AUTO RIDE CONTROL SW 103-6333 B A 2

C

5 C

614-PU

3 C 4 C

6

C

C

3 C

C

6 C

5

C

TRANSMISSION NEUTRALIZER OVERRIDE SW 112-6156

614-PU 614-PU 200-BK 614-PU 200-BK

L99

L31

D

L47

FLOOD LAMP IND LAMP 7N-5876

D D

819-GY-18 250-BK-18

E D A C B

L6

L89

CUSTOMER DATA CONNECTION

QQ

251-BK-18 188-WH-18 E955-OR-18

L3

202-BK-18 720-PU-18 130-RD 604-OR

11

L71

L4

7

6

5

FORWARD HORN 7T-0970

F

FLOOD LAMP 9X-1439

F F

F

1 RD-18 2 BK-18

LEFT TURN LAMP 162-2073

1 RD-18 2 BK-18

RIGHT TURN LAMP 162-2073

N

200-BK 507-WH 506-PU 201-BK-18 442-GY-18 496-WH-18

11 5 8 9 10 12 6 4 7 1 2 3

2 RD 1 RD

AUX LOWER PROP SOL 138-2924

2 RD 1 RD

LOWER PROP SOL 138-2924

M

M

E922-GN-18 H714-OR-18 E919-YL-18 E920-BR-18 E921-PK-18 H716-WH H713-PK-18 H717-BR-18 138-GN-18 251-BK-18 C529-GY-18

N

L1

ABBREV

CONN 28

RD WH OR YL PK BK GY PU BR GN BU

CONN 27 1 BK-18 2 BK-18

HYD OIL LEVEL SW 123-2993

COLOR

SYMBOL

DESCRIPTION

BLADE, SPADE, RING, OR SCREW TERMINAL CIRCUIT CONNECTED

RED WHITE ORANGE YELLOW PINK BLACK GRAY PURPLE BROWN GREEN BLUE L#

CIRCUIT NOT CONNECTED ELECTRICAL CONNECTION TO MACHINE STRUCTURE INTERNAL ELECTRICAL CONNECTION TO SURFACE OF COMPONENT CONNECTOR ATCH WIRE, CABLE & COMPONENT CIRCUIT GROUPING DESIGNATION

H716-WH-18

M

RACKBACK PROP SOL ON/OFF PILOT SOL 138-2924 152-6761 M 138-GN-18 A 251-BK-18 B C529-GY-18 C

M

1 2

RD RD

M

Q

1 2

LIFT PROP SOL 138-2924

OR-18 +24V BK-18 GROUND WH-18 SIGNAL

PP PP G485-BU-18 1 2 201-BK-18

M A 138-GN-18 251-BK-18 B C529-GY-18 C

975-WH-18 N939-GN-18

976-OR-18 975-WH-18 N939-GN-18

Q

Q

AUX LIFT PROP SOL 138-2924

LIFT CYL HEAD END PRESSURE SENSOR 124-4672

BK BK T FRONT AXLE TEMP SW 155-8999

CONN 37

975-WH-18 976-OR-18

1 2

E

F E922-GN-18 11 H714-OR-18 5 E919-YL-18 8 E920-BR-18 9 E921-PK-18 10 E416-PU-18 12 6 H716-WH H713-PK-18 4 H717-BR-18 7 1 138-GN-18 2 251-BK-18 C529-GY-18 3 F M

B C D E F F F H J J K L L M M N P Q R S T U V V W Y Z DD DD EE TT LL MM NN PP RR SS KKK KKK LLL LLL VVV WWW ZZZ ZZZ

NC

H716-WH-18 H716-WH-18

E/H IMPLEMENT CONTROL MANIFOLD

L1

N

201-BK-18 496-WH-18

FORWARD HORN 7T-0970

F

M

1 2

M

IDENT

N

Y

FLOOD LAMP 9X-1439 F

H716-WH H716-WH-18 H716-WH-18

E920-BR-18 H713-PK-18 E921-PK-18 H717-BR-18

CONN 35

NO

COM

F

F

LIFT CYL HEAD END PRESS.SENS 124-4672 OR-18 +24V BK-18 GROUND WH-18 SIGNAL

1 GN-18 2 GN-18

RIDE CONT "OFF" SOLENOID 3E-8574

2 GN-18 1 GN-18

RIDE CONT "ON" SOLENOID 3E-8574

D

STD FRONT FRAME PART NO. HARNESS AS. 154-9000 152-3825 159-8684 136-1873 146-9825 153-5416 151-3118 126-5612 150-1411 138-0171 138-0172 124-8355 124-8356 136-1877 136-1872 114-9493 162-5597 136-1880 142-2200 154-4563 128-4066 136-1875 146-9826 149-4060 160-2636 135-2628 154-4566 121-8038 121-8039 156-1058 156-6224 115-0817 139-4182 136-1870 158-6501 158-6502 158-6268 141-3883 141-3885 141-3884 141-3886 147-8345 119-8984 155-2243 148-9268

CHG

LOC

NOTE

00 00 00 05 05 00 03 03 00 01 01 01 01 01 02 01 00 03 01 01 03 02 04 03 00 03 02 02 01 00 00 04 00 02 00 00 00 02 01 02 01 00 01 00 00

G-1 D-3 D-3 D-14 D-2 G-1 I-1 G-10 I-1 I-1 H-15 F-8 F-8 D-1 D-1 B-3 A-4 D-2 A-13 F-6 C-12 C-15 D-12 D-12 G-4 A-3 D-11 B-3 B-3 H-1 H-1 A-15 A-3 I-3 D-1 C-14 I-4 H-1 G-1 H-1 H-1 G-3 G-3 E-8 E-8

BUCKET POSITION SW CAB DASH ENGINE FRONT FRAME(US) FRONT FRAME(COSA) FRONT FRAME (JAPAN) HVAC FRONT LIGHTS(JAPAN) FRONT LIGHTS(JAPAN ROAD) REAR LIGHTS(JAPAN ROAD) IMPL CNTRL CONSOLE(2LVR/3LVR) IMPL CNTRL CONSOLE(4FCN/3FCN STICK) PAYLOAD CONTROL SENSOR HYDRAULIC CNTRL VALVE MANIFOLD STOP LAMP/NEUTRALIZER SW PAYLOAD MONITOR RIDE CONTROL VALVE RELAY PANEL(CHASSIS) TURN SIGNAL SW TRANSMISSION FUEL TANK REAR FRAME(US & COSA) REAR FRAME(JAPAN) STEERING WHEEL HYDRAULIC TANK FUSE PANEL(CAB) DIMMER SWITCH JUMPER DIMMER SWITCH TURN SIGNAL (COSA) TURN SIGNAL (COSA) LICENSE PLATE LAMP(COSA) WINDSHIELD WASHER BRAKE MODULE FRONT AXLE REAR AXLE SECONDARY STEERING RH FRONT LIGHTS (COSA) RH FRONT LIGHTS (COSA) LH FRONT LIGHTS (COSA) LH FRONT LIGHTS (COSA) CAB FLOOD LAMPS BEACON LAMP SEAT SEAT

STD

STD ATCH ATCH ATCH ATCH STD

C

ATCH ATCH ATCH

STD ATCH ATCH

ATCH STD ATCH STD ATCH ATCH STD ATCH

G X AAA BBB DDD PPP QQQ RRR SSS UUU

WIRE AS. 116-2247 116-2246 155-9002 155-9003 152-6432 125-3556 127-3003 127-3011 125-8811 127-2994

01 01 00 00 00 01 01 01 00 01

D-11 D-11 I-13 I-13 G-4 I-6 I-5 I-6 I-6 G-8

TERM STUD TO FUSES(CAB) TERM STUD TO BREAKERS(CAB) MONITOR CODE PLUG - 966G MONITOR CODE PLUG - 972G XMSN SHIFTER SW ASSEMBLY GND OPTIONS CODE PLUG - IMPL 2 FCN OPTIONS CODE PLUG - IMPL 2 FCN STICK OPTIONS CODE PLUG - IMPL 3 FCN STICK W/SELECT SW OPTIONS CODE PLUG - IMPL 3 FCN W/3RD LVR BUCKET/FORK SELECT SW JUMPER

AA BB BB CC FF GG HH JJ KK VV XX YY JJJ XXX

CABLE AS. 116-0080 8V-0615 8V-4322 158-6269 1P-1010 5R-7755 2W-8715 8W-0323 107-2111 140-6094 146-1534 140-6309 144-7929 124-4884

01 01 02 00 00 01 00 00 01 00 00 00 01 00

F-15 F-14 F-14 D-14 D-14 D-14 C-15 F-15 B-15 I-4 D-14 I-4 B-14 H-3

BATTERY(+) TO BATTERY(-) BATTERY(+) TO CRANKING MOTOR BATTERY(+) TO B+ TERM BLOCK B+ TERM BLOCK TO CRANKING MOTOR CRANKING MOTOR TO FRAME CRANKING MOTOR TO ENGINE BLOCK ALTERNATOR(B-) TO ENGINE BLOCK BATTERY(-) TO MASTER DISCONNECT SW MASTER DISCONNECT SW TO FRAME SEC STEER RELAY TO SEC STEER MOTOR TERM BLOCK TO SEC STEER RELAY SEC STEER MOTOR TO FRAME AUXILIARY JUMPSTART RECEPTACLE ANTENNA(ENTERTAINMENT RADIO)

EEE FFF YYY

STRAP AS. 7X-6315 7X-6315 8X-5804

03 03 01

I-10 I-9 G-12

TRANSMISSION CNTRL MODULE GROUND IMPL CNTRL MODULE GROUND CAB TO FRAME GROUND

B

STD ATCH ATCH

ATCH ATCH ATCH ATCH

ATCH

A

L102

RD-0

4

F F

2 RD 1 RD L102

G764-PK-18 202-BK-18 416-OR-18 417-GY-18 453-PK-18 L2 251-BK-18 484-YL-18 138-GN-18 727-GN-18 201-BK-18 432-PK-18 18 C530-BU-18 419-YL-18 3 146-GY 311-WH 10 299-BK-18 310-PU 32 762-YL 107-RD-14 31 761-GY 200-BK-14 11 322-GY 327-PK-14 1 114-RD 24 619-GN-14 306-GN 7 200-BK-14 326-RD 19 605-YL-14 499-GY-18 C530-BU-18 20 606-GY-14 146-GY 617-BR-14 23 299-BK 611-PU-14 21 762-YL 614-PU-14 22 N939-GN-18 200-BK-14 8 322-GY 26 114-RD 6 G485-BU-18 619-GN-14 5 201-BK-18 200-BK-14 36 E922-GN-18 605-YL-14 28 H714-OR-18 606-GY-14 33 E919-YL-18 617-BR-14 34 E920-BR-18 611-PU-14 35 E921-PK-18 614-PU-14 12 E416-PU-18 E922-GN-18 29 H716-WH H714-OR-18 27 H713-PK-18 E919-YL-18 30 H717-BR-18 761-GY 2 138-GN-18 200-BK-14 9 251-BK-18 E920-BR-18 13 C529-GY-18 E921-PK-18 17 E416-PU-18 4 H716-WH 25 H713-PK-18 37 H717-BR-18 14 975-WH 15 F 976-OR 16 138-GN-18 976-OR 40 976-OR-18 C 251-BK-18 975-WH 39 975-WH-18 B C529-GY-18 N939-GN-18 38 N939-GN-18 A G485-BU-18 V F 201-BK-18

L4

442-GY-18

MOTOR

REAR WASHER 7T-8890

8

H716-WH

DD

COM

V

BUCKET POSITIONER SW B 164-3583 A RD-18 + BATTERY C BK-18 GROUND B BU-18 SOLENOID

146-GY 299-BK 762-YL

M

NEUTRALIZER SW 105-6118

N

1 4 2 3

Y

MM

9

B

E922-GN-18 H714-OR-18 E919-YL-18

L4

Y T

10

A B C

DUMP PROP SOL 138-2924

L102

MM

L102

L102 RD-0

F

322-GY 114-RD

L4

L6

L4

LIFT POSITION SENSOR 161-8904

WH-18 SIGNAL BK-18 GROUND OR-18 +24V

IMPLEMENT E/H CONTROL MANIFOLD

L1

L102

C B A

VVV

RD-0

L4

RD-0

C

G

C A B

F

619-GN-14 200-BK-14

CONN 36

CONN 29

BU-18 RD-18 WH-18 YL-18 BK-18

605-YL-14

L102

L7

L6

4 6 3 1 2 5 KKK

322-GY 114-RD

STOP LAMP SW 3E-5520

L7

F

VVV

619-GN-14 611-PU-14 DD

SERVICE BRAKE PEDAL AS. 110-8029 NOTE C

L71 L4 L102 RD-0

611-PU-14 619-GN-14 614-PU 606-GY-14 200-BK-14

VVV

610-OR-14

H

RH HI/LO/POSITION TURN LAMP 105-4850

VVV

C 11 12 3 4 5 6 9 10 1 2 7 8

DD

EE

FLOOD LAMP 9X-1439

CONN 38

FRONT INTERMITTANT WIPER SW 110-7886

7 2 8 9 6 5 3 1 4 10 11 12 C P

KKK

RIGHT TURN LAMP 116-9624

EE

LLL 5 4 BU-18 611-PU-14 6 RD-18 619-GN-14 617-BR 3 WH-18 1 YL-18 605-YL-14 2 BK-18 200-BK-14 WW TO BUCKET 1 POSITION-TURN 4 LAMPS HARN 2 LH HI/LO/POSITION 3 TURN LAMP 105-4849

200-BK-14 605-YL-14 617-BR 606-GY-14

C530-BU-18 251-BK-18 138-GN-18

DD DIMMER SW 2H-1855 NOTE: FOR JAPAN ROADING

B+ B+ GROUND HIGH LOW PARK WASH

RD-14 RD-18 BK-18 WH-14 YL-14 BU-14 BR-18

606-GY-18 200-BK-18

TT

RD RD

200-BK-14

OPERATOR STATION

B C A

L7

OPERATOR STATION L4

RD-0

611-PU-14 610-OR-14 202-BK-18 720-PU-18 130-RD 604-OR 619-GN-14

188-WH-18 251-BK-18 E955-OR-18

L7

EE

KKK

146-GY 299-BK-18 762-YL

944-OR-18 945-BR-18 E923-PK-18 E924-YL-18 E925-OR-18 L89 NOT E926-BU-18 USED E930-BU-18 E936-WH 167-OR A219-BK-18 E927-GN-18 E928-WH-18 C DD 619-GN-14 B C 611-PU-14 A 200-BK-14 610-OR-14

CONN 25 138-GN-18 818-BR-18

1 2

KKK

761-GY 299-BK-18 146-GY

L4 P

L6

KKK

LEFT TURN LAMP 116-9624

TT

LIGHTING GP-ROADING (COSA) STD FRONT FRAME

202-BK-18 118-GY E702-OR-18 K933-GN-18 443-YL-18 447-PK-18 496-WH-18 441-OR-18 442-GY-18 432-PK-18 403-GN-18 405-GY-18 322-GY 326-RD 308-YL 310-PU 605-YL-14 606-GY-14 611-PU-14 610-OR-14 619-GN-14 105-RD 500-BR 501-GN 502-OR E701-PK-18 410-WH-18 113-OR-18 615-YL-14 663-GY 661-GN 662-YL A541-PU-18 537-GN-14 720-PU-18 130-RD 604-OR 373-GN 633-BU-18 538-BR 499-GY-18 910-YL-18 202-BK-18 G485-BU-18 G486-GN-18

L71

L71

C530-BU-18 C529-GY-18 251-BK-18 944-OR-18 945-BR-18 E416-PU-18 138-GN-18

F

E735-PU-18 270-BK-18 271-BK-18 272-BK-18 273-BK-18 274-BK-18 L17 275-BK-18 290-BK-18 291-BK-18 F785-WH-18 F784-YL-18 F781-BR-18 L16 F783-GN-18 G750-BU G755-GY G763-PU 307-OR-18 L15 944-OR-18 945-BR-18 614-PU 200-BK 201-BK-18

G486-GN-18 432-PK-18 G485-BU-18 441-OR-18 442-GY-18 443-YL-18 447-PK-18 496-WH-18 499-GY-18 538-BR E702-OR-18 614-PU 615-YL-14 910-YL-18 944-OR-18 945-BR-18 K933-GN-18 E701-PK-18 611-PU-14

RIGHT TURN IND LAMP 7N-5876

D

605-YL-18 200-BK-18

F

A541-PU-18 E735-PU-18 F785-WH-18 F784-YL-18 F781-BR-18 F783-GN-18 G750-BU G755-GY G763-PU 202-BK-18 105-RD 113-OR-18 200-BK 201-BK-18 307-OR-18 308-YL 326-RD 403-GN-18 405-GY-18 410-WH-18

L3

L3

L89 L102

WWW

OPERATOR STATION

BUCKET TURN SIGNAL IND LAMP 7N-5876

D

1 2

TT

619-GN-14

CONN 30

L89 L71

12

D

C 14 40 35 32 33 34 30 31 36 5 1 2 3 4 6 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 23 39 25 26 27 28 29 37 38 24

D

L10

L10

L4

D

NEUTRALIZER OVERRIDE LAMP 7N-5876

D D

LLL

200-BK-14

CONN 31 373-GN 322-GY 310-PU 633-BU-18 118-GY 270-BK-18 271-BK-18 272-BK-18 273-BK-18 274-BK-18 275-BK-18 290-BK-18 291-BK-18 500-BR 501-GN 502-OR 537-GN-14 663-GY 605-YL-14 606-GY-14 661-GN 662-YL

L8

L8

OPERATOR STATION

L4

D

F785-WH-18 F784-YL-18 F781-BR-18 F783-GN-18 G750-BU L39 G755-GY G763-PU 322-GY 663-GY L40 308-YL 310-PU 373-GN-18 202-BK-18 A541-PU-18 537-GN-14 661-GN 662-YL 614-PU 326-RD 307-OR-18 501-GN L44 118-GY 500-BR 502-OR 105-RD 201-BK-18 E702-OR-18 E701-PK-18 611-PU-14 275-BK-18 274-BK-18 273-BK-18 272-BK-18 271-BK-18 270-BK-18 291-BK-18 290-BK-18 945-BR-18 944-OR-18 410-WH-18 442-GY-18 443-YL-18 441-OR-18 447-PK-18 K933-GN-18 432-PK-18 405-GY-18 403-GN-18 496-WH-18 113-OR-18 910-YL-18 615-YL-14 E735-PU-18 499-GY-18 633-BU-18 G485-BU-18 G486-GN-18 605-YL-14 606-GY-14 538-BR 200-BK

C 18 3 14 13 12 1 2 4 5 6 7 8 9 10 11 15 16 17 19 24 20 21 22 23

Y

RH HEADLINER L8 202-BK-18 L10

614-PU 200-BK 944-OR-18 945-BR-18 C530-BU-18 C529-GY-18 251-BK-18 138-GN-18 E416-PU-18

L98

L98

P 20 13 2 19 15 16 1 24 18 12 5 9 3 4 8 10 11 22 6 23 17 21 7 14

CONN 26

L8

L98

L35

L10

1 2 3 4 5 6 7 8

A B C

WLPCS KEYPAD 129-0419

200-BK 614-PU

118-GY 118-GY 200-BK-14 502-OR 501-GN 500-BR 506-PU

B

A C 2

P

OR-18 BK-18 WH-18

C

1 C

200-BK-14

C

L10 L31

AUTO/MANUAL GEAR SELECT SW 123-6383 (SHOWN IN MANUAL POSITION)

0

DATA L100

G766-GN G767-WH (UP)

+V DISPLAY GROUND

L99

L100

AUTO

L31

BEACON SW 9X-9639

3

122-RD 122-RD

ON

L33

C 200-BK D 200-BK-14 614-PU C C 2 144-GN C 102-RD-14 122-RD L35 617-BR 610-OR-14

200-BK 615-YL-14

L49

LIFT POSITION SENSOR LIFT PRESS-HEAD END GROUND CAT DATA LINK + CAT DATA LINK LIFT PRESS-ROD END +BATTERY 24V (IN) UNUSED UNUSED UNUSED UNUSED TX A CHANNEL TX B CHANNEL UNUSED GROUND UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED GROUND KEYPAD SUPPLY +12V KEYPAD DATA

OFF

L35

200-BK 910-YL-18

D

T

BK GY BR OR

SW POS

C

D

ACTION LAMP 9W-2111

D

200-BK 200-BK

200-BK 200-BK

C OFF 326-RD D S ON 307-OR-18 B ST 105-RD D 501-GN KEY START SW 118-GY L46 9G-7641 500-BR 502-OR 201-BK-18 L46

L

INPUTS (1=SW CLSD, 0=SW OPEN)

A219-BK-18

DATA GROUND +V DISPLAY CLOCK MODULE LOAD HARNESS CODE

L44

L49

L46

C

200-BK 200-BK 614-PU

WH-18 BK-18 OR-18 GN-18 YL-18 BU-18

TACH/SPEEDOMETER 153-8061 D D LAMPS 7N-5876 661-GN 662-YL 200-BK 200-BK

RH DOME LAMP 3E-6389

L99 L100

L101

4 2 1 3 5 6

605-YL-14

5 1 606-GY-14 3 614-PU 6 619-GN-14 2 200-BK-14 4 611-PU-14 F KKK

FRONT DASH ASSEMBLY/STEERING WHEEL

L99 L100

122-RD 122-RD

D

FLOOD LAMP 9X-1439

LLL

CONN 34

RD-0

L45

606-GY-14 605-YL-14 538-BR

L50

L50

L50

ATT AUTO RIDE CTRL SW OPERATION

C

C413-YL-18 201-BK-18 E707-GN-18 E708-PK-18 C414-BU-18

L44

L44

GND

D

D

LLL

619-GN-14

CAB FLOOD LAMP 9X-4381 615-YL-14 200-BK-14

RIGHT TURN LAMP 162-2073

FLOOD LAMP 9X-1439

RD RD

7 5

L49

L47

GN-14

200-BK L53

3 1 5

D

118-GY 118-GY

C

BLOWER SW (LOW,MED,HI) 3E-7156

5

D

FUNCTION NORMAL MODE HARNESS CODE NUMERIC READOUT SERVICE MODE TATTLE TALE MODE US/METRIC MODE (UNITS MODE) IMPLEMENT CONTROL CALIBRATION

0 1 2 3 4 5 6

5

L50

200-BK 118-GY 500-BR 502-OR

D

CATERPILLAR MONITORING SYSTEM OPERATING MODES

MODE

411-PK-18 201-BK-18

201-BK-18

D

DATA GROUND +V DISPLAY CLOCK MODULE LOAD HARNESS CODE

QUAD GAUGE 100-5895 LAMPS 7N-5876

663-GY 200-BK 200-BK

200-BK 200-BK

200-BK

LEFT TURN IND LAMP 7N-5876

WH-18 BK-18 OR-18 GN-18 YL-18 BU-18

4 2 1 3 5 6

LLL

6 4 1 3 5 2

5 1 606-GY-14 3 6 619-GN-14 2 200-BK-14 4

LLL 6 619-GN-14 4 611-PU-14 1 605-YL-14 3 617-BR 5 606-GY-14 2 200-BK-14

RD BK

L39 STEER COLUMN GROUND

D

615-YL-14 200-BK-14

RD-18 BL-18

J

606-GY-14 200-BK-14

L43

L49

200-BK

HAZARD FLASHER LAMP 7N-5876

D 200-BK 538-BR D D 540-WH-18 200-BK D

C413-YL-18 201-BK-18 E707-GN-18 E708-PK-18 C414-BU-18

CATERPILLAR MONITORING SYSTEM 155-1615 L49

D

L45

8

HIGH BEAM IND LAMP 7N-5876

L45

113-OR-18 113-OR-18

L97

L48

411-PK-18

D

611-PU-14 200-BK

L53

499-GY-18 201-BK-18 275-BK-18 274-BK-18 273-BK-18 272-BK-18 271-BK-18 270-BK-18 291-BK-18 290-BK-18 E735-PU-18 945-BR-18 944-OR-18 410-WH-18 C413-YL-18 C414-BU-18 E707-GN-18 E708-PK-18 442-GY-18 443-YL-18 441-OR-18 447-PK-18 K933-GN-18 432-PK-18 405-GY-18 G485-BU-18 403-GN-18 496-WH-18 G486-GN-18 113-OR-18

L43 200-BK 200-BK E702-OR-18 E701-PK-18 611-PU-14 538-BR 540-WH-18 275-BK-18 274-BK-18 273-BK-18 272-BK-18 271-BK-18 270-BK-18 291-BK-18 290-BK-18 E735-PU-18 945-BR-18 944-OR-18 410-WH-18 C413-YL-18 C414-BU-18 E707-GN-18 E708-PK-18 442-GY-18 443-YL-18 441-OR-18 447-PK-18 K933-GN-18 432-PK-18 405-GY-18 403-GN-18 496-WH-18 113-OR-18 201-BK-18 499-GY-18 G485-BU-18 G486-GN-18 201-BK-18 910-YL-18 615-YL-14 539-BU-18 633-BU-18

AUTO RIDE CONTROL LAMP 7N-5876

L47

E701-PK-18 113-OR-18

200-BK 200-BK

4 1 S S

UNUSED UNUSED UNUSED UNUSED UNUSED IMPL FILTER GROUND HARNESS CODE 5 HARNESS CODE 4 HARNESS CODE 3 HARNESS CODE 2 HARNESS CODE 1 HARNESS CODE 0 CLEAR SERVICE OPERATOR SW INPUT CAT DATA LINK CAT DATA LINK + ACTION ALARM MODULE DATA MODULE LOAD CLUSTER +V MODULE CLOCK HYD TEMP SENSOR CNVT TEMP SENSOR COOL TEMP SENSOR FUEL LEVEL SENSOR +8V SENSOR SUPPLY BRK OIL PRESS ENG OIL PRESS FRONT AXLE TEMP ALTERNATOR HYD OIL LEVEL REAR AXLE TEMP + BATTERY UNUSED UNUSED UNUSED UNUSED ACTION LAMP

D D

1 2

J

619-GN-14 200-BK-14

FORWARD HORN 7T-0970

F

J

606-GY-14 200-BK-14

CONN 33

CAB FLOOD LAMP 9X-4381

CAB FLOOD LAMP 9X-4381

RIDE CONTROL LAMP 7N-5876

D D

113-OR-18 E702-OR-18

INDICATOR LAMP POSITION COLUMN 37 38 11 27 17 21 2 6 16 22 12 3 31 33 23 18 14 5 4 35 15 34 25 10 28 8 9 24 20 19 40 30 29 32 1 7 39 26 36 13

F

F 619-GN-14 611-PU-14 605-YL-14 617-BR-14 606-GY-14 200-BK-14 200-BK-14 614-PU-14

BEACON 128-6983

FRONT DASH ASSEMBLY

113-OR-18 113-OR-18

L48

D

24 21 19 23 20 8 7 22

CAB FLOOD LAMP 9X-4381

322-GY

200-BK

1 2 3 7 5 6 4 8

SELECTOR SW (A/C,OFF,HTR) 3E-7155 200-BK 1 C

L101

C

603-PK

604-OR-18 130-RD-18

B3

W

WLPCS ECM 112-1572

L101

L39

L39

FORWARD HORN 7T-0970

COSA LIGHTING GP

STEERING COLUMN AS. 151-7007

L40

S 3

L47

G750-BU G755-GY F783-GN-18 F785-WH-18 F784-YL-18 F781-BR-18 G763-PU 322-GY

VVV 615-YL-14 200-BK-14 VVV

WWW 603-PK-14 1 200-BK-14 2

FORWARD HORN SW 2T-3360

308-YL

202-BK-18

VVV 615-YL-14 200-BK-14 VVV

F

CONN 33

CONN 34

L15 BU-18 PU-18 GY-18

1 10 3 4 5 6 7 8 9 11 12 2

OPERATOR STATION

C

200-BK-14 200-BK-14 608-GN-14 BK

BK-18

BK-18

F N R

F783-GN F785-WH F784-YL F781-BR G750-BU G763-PU G755-GY 202-BK

5 6 7 8 3 1 4 2

D

F

RD-0

D

F 619-GN-14 611-PU-14 605-YL-14 617-BR-14 606-GY-14 200-BK-14 200-BK-14 614-PU-14

CONN 35

L102

D

DDD

FORWARD/NEUTRAL/ REVERSE SW 152-5707

L48

L46

24 21 19 23 20 8 7 22

CONN 35

VVV

3 1 2 6 5 4

I

FLOOD LAMP 9X-1439

J

CONN 34 J

F

614-PU-14 619-GN-14 611-PU-14

L17 L16 L15

A 2

L43

538-BR 606-GY-14 605-YL-14 L52

2 4

W

CONN 24

606-GY-14 200-BK-14

614-PU-14

HI/LO BEAM HEAD LAMP 4Y-4580

V

VVV

VVV

J

F F

114-RD 322-GY

617-BR-14

LEFT TURN LAMP 162-2073

RD-18 BL-18

114-RD 322-GY

611-PU-14

ANTENNA AS. (AM/FM RADIO) 9U-2331 XXX

WWW

619-GN-14 200-BK-14

1 2

JAPAN FRONT FRAME

L16 L17

L103

CONN 33

F

J

605-YL-14 200-BK-14

2 1

2 1 D

GN-18 WH-18 YL-18 BR-18

L53

4 1 2 6 3 5

619-GN-14 J 611-PU-14 J 200-BK-14 J

RH TURN & CLEARANCE LAMP 4Y-3263

J

L2

L40

S 2

501-GN

YL-18 T PU-18 C

J 200-BK-14 J

V

W

START AID SW (MOMENTARY) 3E-7176

200-BK 200-BK

MUR440 538-BR 605-YL-14 L24

L38

SEAT

1 3

L50

L24

2 4

DOWNSHIFT SW 152-5710

L97

D

605-YL-14 617-BR-14

J

L15

200-BK-14 C 615-YL-14 C 608-GN-14 C

1 3

L97

L50

3 6 5 1 4 2

J

L103

TO ENTERTAINMENT RADIO

L40

L53

L52

L40

E707-GN-18 E708-PK-18 C413-YL-18 C414-BU-18 201-BK-18 E735-PU-18 663-GY 308-YL 310-PU 373-GN-18

L38

L51 L24

L22

539-BU-18 540-WH-18 606-GY-14 605-YL-14 537-GN-14 A541-PU-18 200-BK 614-PU 202-BK-18 201-BK-18 201-BK-18 E707-GN-18 E708-PK-18 C413-YL-18 C414-BU-18 662-YL 661-GN

CONN 20 727-GN-18 136-GN-18 102-RD-14 614-PU 614-PU 200-BK

B

3

661-GN 662-YL 202-BK-18 605-YL-14 606-GY-14

F 606-GY-14 614-PU-14 619-GN-14 200-BK-14 611-PU-14

24 21 19 23 20 8 7 22

3 1 2 6 5 4

617-BR-14 619-GN-14 611-PU-14

CONN 35

V

F

GN-18 GN-18

200-BK-18 200-BK-18 727-GN-18

310-PU 311-WH

MUR440

L82

L21 L23

2 1

MUR440

299-BK-18 H711-GN-18 H719-OR-18 H715-PU-18 H720-BU-18 H716-WH-18

200-BK 129-BU 202-BK-18 G761-YL-18 G762-BR-18 H710-PK-18 H711-GN-18 H715-PU-18 G942-OR-18 G943-BU-18 G947-WH-18 H716-WH-18 200-BK 1 129-BU 11 8 10 12 H710-PK-18 3 H711-GN-18 5 H715-PU-18 2 G942-OR-18 6 G943-BU-18 4 G947-WH-18 9 7 H716-WH

PU-18 WH-18

1 2 3 4 5 6 L21

146-GY 146-GY 146-GY

A201-BK-18 A202-BK-18 A203-BK-18 A204-BK-18 A205-BK-18 299-BK-18

146-GY 146-GY 146-GY

299-BK-18 299-BK-18 A201-BK-18 A202-BK-18 A203-BK-18 A204-BK-18 A205-BK-18

L83

A272-BK A272-BK H719-OR-18 H715-PU-18 E917-WH-18 E918-GN-18 G943-BU-18 G944-YL-18 944-OR-18 945-BR-18

H708-OR-18 H709-BU-18 299-BK-18

299-BK-18 299-BK-18 299-BK-18 299-BK-18

H719-OR-18 H720-BU-18 E917-WH-18 E918-GN-18 G944-YL-18 H710-PK-18 H711-GN-18 H715-PU-18 G942-OR-18 G943-BU-18 G947-WH-18 H716-WH-18

200-BK 129-BU

2 1

PILOT SUPPLY ON/OFF SOL SOLENOID RETURN LIFT PROP SOLENOID LOWER PROP SOLENOID DUMP PROP SOLENOID RACKBACK PROP SOLENOID BUCKET POS SW UNUSED KO SET SW (N/O) KO SET SW (N/C) UNUSED UNUSED UNUSED - BATTERY - BATTERY LIFT KO DETENT SOL LOWER KO DETENT SOL IMPL LO SW (N/O) IMPL LO SW (N/C) IMPL FUNC SEL SW (N/O) IMPL FUNC SEL SW (N/C) CAT DATA LINK + CAT DATA LINK UNUSED UNUSED UNUSED UNUSED SW & SENSOR RETURN SW & SENSOR RETURN OPTION CODE 1 OPTION CODE 2 OPTION CODE 3 OPTION CODE 4 OPTION CODE 5 UNUSED UNUSED UNUSED +BATTERY +BATTERY +BATTERY

8 7 10 4 11 17 39 19 21 22 20 29 35 5 2 18 12 13 14 23 24 9 3 27 28 25 26 16 15 30 31 32 33 36 37 38 34 6 40 1 H717-BR-18 H716-WH H713-PK-18 H714-OR-18 E922-GN-18 E921-PK-18 762-YL-18

5 6 7 8 11 1 2 3 9 10 12 4

200-BK 129-BU

H719-OR-18 H720-BU-18 E917-WH-18 E918-GN-18 G944-YL-18 H710-PK-18 H711-GN-18 H715-PU-18 G942-OR-18 G943-BU-18 G947-WH-18 H716-WH-18

200-BK 129-BU 614-PU G943-BU-18 G944-YL-18 G947-WH-18 E917-WH-18 E918-GN-18 H710-PK-18 G942-OR-18 146-GY-18 146-GY-18 614-PU 146-GY-18 146-GY-18 299-BK-18 299-BK-18

7 2 3 5 6 8 4 1 614-PU 146-GY-18 146-GY-18 299-BK-18 299-BK-18

C

4

RH HEADLINER

OPERATOR STATION

D

605-YL-14 200-BK-14

FORWARD HORN 4Y-7882

F

JAPANESE ROADING LIGHTING

L2

XXX

3

L35

L31

200-BK-14 200-BK-14 200-BK-14 200-BK-14

200-BK

2

B2

614-PU

L10

200-BK-14 200-BK-14 200-BK-14

B1

PANEL LAMP 7N-5876

L33

L38

L16 L17

UPSHIFT SW 152-5709

308-YL

201-BK-18 614-PU A541-PU-18 L45 537-GN-14

614-PU A541-PU-18 537-GN-14 661-GN 662-YL 202-BK-18 605-YL-14 606-GY-14

1

C

L37

L33

L33

2 1 7 8 5 6 4 3

910-YL-18 720-PU-18

L27

C

L98

500-BR 501-GN L10 502-OR 506-PU E928-WH-18 A219-BK-18 E927-GN-18 A219-BK-18 E701-PK-18 G766-GN-18 L31 G767-WH-18 E702-OR-18 H728-GN-18 910-YL-18 720-PU-18 973-BR-18 977-YL-18 H729-WH-18 614-PU 614-PU

L26

1 118-GY 2 118-GY 3 4 505-BU 5 504-YL 6 503-BR 7 507-WH 8

WORK2

614-PU 200-BK

L38 L28

L28

L25

L63 167-OR 537-GN-14 518-OR-14

L27

L27 L37 L38

201-BK-18

L99

RUNNING/WORK/PANEL/TAIL LAMP SW 108-3320 (SHOWN IN OFF POSITION)

ROADING WORK1

RD-0

F

114-RD 322-GY

614-PU-14

LH TURN & CLEARANCE LAMP 4Y-3580

F

CONN 34

PRIMARY STEERING PRESS SW 3E-6450

VOLTAGE CONVERTER 119-1733

BK-18 DDD

202-BK-18 200-BK 614-PU 202-BK-18

WH YL BU BR

P W

L24

L24

508-PU 509-WH 512-GN 511-BR A513-PK 135-BU 120-YL 200-BK-14

AIH SW (MOMENTARY) 112-6169 3116 ENG ONLY

D

118-GY

L37

PARK

HVAC OPERATOR CONTROLS

L61

L38

L22

617-BR-14

HI/LO BEAM HEAD LAMP 4Y-4580

F

114-RD 322-GY

611-PU-14

484-YL-18 417-GY-18 202-BK-18

C B A

BU RD BK

L16 L17

200-BK 200-BK

RD RD

C

C

L37

C

L28

PANEL LAMP 7N-5876

OFF

TEMPERATURE SELECTOR POTENTIOMETER 200-BK C B 127-4540 200-BK

L61

L27

C

200-BK-14 200-BK-14 200-BK-14

L62

L25

A 2

D

200-BK 200-BK 614-PU 614-PU 310-PU

C414-BU-18 C413-YL-18 E708-PK-18 E707-GN-18 539-BU-18 540-WH-18 201-BK-18 201-BK-18 200-BK 200-BK

L100

L100

B B

H

A541-PU-18 605-YL-14 606-GY-14 539-BU-18 537-GN-14 540-WH-18 308-YL

D

3 202-BK-18

L8

L25

ZZZ

201-BK-18 E707-GN-18 E708-PK-18 C413-YL-18 C414-BU-18 C414-BU-18 C413-YL-18 E708-PK-18 E707-GN-18 539-BU-18 540-WH-18 201-BK-18 201-BK-18 200-BK

L38

BR-14

118-GY

118-GY L100 118-GY 118-GY 118-GY 118-GY 118-GY

RD-0

L15

RH HEADLINER

L37

L8

L50

L50

L8

122-RD

202-BK-18

L43

L38

614-PU 614-PU

118-GY 120-YL 133-OR-18

614-PU 146-GY-18 299-BK-18 H719-OR-18 H720-BU-18 E917-WH-18 E918-GN-18 G944-YL-18

L62

L38

REAR WIPER SW 112-6174

L26

L22

L24

L

727-GN-18 728-BU-18 C529-GY-18 C530-BU-18

614-PU 614-PU 373-GN-18

538-BR E735-PU-18 E735-PU-18 499-GY-18 633-BU-18 E702-OR-18 E701-PK-18 611-PU-14 275-BK-18 274-BK-18 273-BK-18 272-BK-18 271-BK-18 270-BK-18 291-BK-18 290-BK-18 945-BR-18 944-OR-18 410-WH-18 442-GY-18 443-YL-18 441-OR-18 447-PK-18 K933-GN-18 432-PK-18 405-GY-18 403-GN-18 496-WH-18 113-OR-18 615-YL-14 910-YL-18 G485-BU-18 G486-GN-18

D

L22

136-GN-18 727-GN-18

L11

E416-PU-18 138-GN-18 251-BK-18 944-OR-18 945-BR-18

L23

GY-14

L38

VV

MOTOR

C 453-PK-18 B 416-OR-18 A 202-BK-18

24 21 19 23 20 8 7 22

V

L15

GN-14 PK-14

L62

YY

L2

200-BK-14

F

RD-0

YL-14

L24 L8 L61

L8

608-GN-14

L26

L23

D

L11

L84

L25

CONN 18

ZZZ

129-BU 108-BU-14

OR-14 BU-14

L24

1 7 15 4 5 16 26 19 27 39 2 21 17 37 35 38 23 25 31 36 29 10 40 33 30 9 24 6 22 34 32 28 13 11 18 8 20 3 14 12 A541-PU-18 633-BU-18 126-PK 608-GN-14 661-GN 662-YL 663-GY 615-YL-14 113-OR-18 410-WH-18 138-GN-18 124-GN-14 646-OR-18 144-GN 647-GN-18 133-OR-18 120-YL 200-BK 129-BU 108-BU-14 201-BK-18 146-GY 136-GN-18

L11

BK-0

V

5 4 3 6 2 1

619-GN-14 J 611-PU-14 J 200-BK-14 J J 605-YL-14 YL-18 T 617-BR-14 PU-18 C J 200-BK-14 J

J

ANTENNA AS. (C.B. RADIO) 9U-2332

+12 V SWITCHED OUT

L55

L53

A541-PU-18 537-GN-14

ARC SUPPRESSOR (2) 106-8704

L23

L11 L58 L57

L66

118-GY 118-GY

L43

L

L22

L61

BK-18 BK-18

TILT LEVER BUCKET K.O. DETENT SOL 3E-9366

614-PU H716-WH

L60

SECONDARY STEERING MOTOR/PUMP 154-2563

CONN 33

V

L103

TACH/SPEEDO/SERV METER SELECT SW (MOMENTARY) 112-6171 D B 200-BK D 614-PU A E735-PU-18 D 2 D 3 201-BK-18 200-BK D B 200-BK

S 6 5 S TURN SIGNAL SW 134-9569

LIFT LEVER LOWER DETENT SOL 3E-9366 L H720-BU-18 1 BK-18 H716-WH-18 2 BK-18

L22

L60

RD-0

200-BK-18

VV

F 619-GN-14 611-PU-14 605-YL-14 617-BR-14

ARC SUPPRESSOR 106-8704

GROUND GROUND +24 V BATTERY IN +24 V SWITCHED IN +12 V MEMORY OUT

539-BU-18 540-WH-18

2 1

CONN 19 C

129-BU 123-WH 146-GY 133-OR-18 128-PK

L57

L86

ZZZ

1 5 2 7 4 8 6 3

10A 10A 10A 10A 10A 10A 10A

200-BK-14 200-BK

L11

L86 L66

L H715-PU-18 1 H716-WH-18 2

D

605-YL-14

LIFT LEVER K.O. DETENT SOL 3E-9366

C

L57

FUSE PANEL

L63

L63

ZZZ

133-OR-18 102-RD-14 122-RD 647-GN-18 617-BR 610-OR-14 646-OR-18 614-PU

L84

CONN 17

200-BK-14 108-BU-14

108-BU-14 124-GN-14 126-PK 136-GN-18 144-GN 167-OR 118-GY 138-GN-18 120-YL 113-OR-18

L11

537-GN-14 538-BR 518-OR-14

L

102-RD-14

L64

L63

IMPLEMENT LOCK OUT SW 116-4502

6 4 5 2 1 3

606-GY-14

BK-18 BK-18

L51

410-WH-18 201-BK-18

112-PU 112-PU G 112-PU G 112-PU G FUSE HOLDER 112-PU G (QTY 14) 112-PU G 4K-5122 112-PU G TERMINAL STUD 9G-8451 G G Z 112-PU 10A 113-OR-18 MONITOR G G Z 15A 112-PU 134-YL-14 REAR FLOODS G 112-PU G 15A Z 127-OR-14 FRONT FLOODS G G Z CIGAR LIGHTER 112-PU 10A 129-BU 112-PU G 10A Z 123-WH NOT USED G Z 112-PU 10A 133-OR-18 WORK LAMPS 112-PU G 10A Z 146-GY EH IMPL CONT 128-PK PILOT CTRL

L

E918-GN-18 E917-WH-18

L52

SUSPENSION GP 150-7718

SEAT

134-YL-14 410-WH-18 201-BK-18

TILT LEVER POS SENSOR 106-4437 L H719-OR-18 1 H716-WH-18 2

L51

L58

615-YL-14

633-BU-18 A541-PU-18 727-GN-18 728-BU-18 975-WH-18 945-BR-18 944-OR-18 105-RD 608-GN-14 647-GN-18 614-PU 661-GN 662-YL 663-GY 537-GN-14 518-OR-14 615-YL-14 410-WH-18 201-BK-18 646-OR-18 200-BK 108-BU-14 124-GN-14 167-OR 146-GY 129-BU 118-GY 144-GN 133-OR-18 123-WH 138-GN-18 120-YL 113-OR-18 126-PK 136-GN-18 128-PK

L65

200-BK FRONT FLOOD Z RELAY 3E-5239 127-OR-14

10A FUSE (QTY 12) 3K-8782 15A FUSE (QTY 2) 8M-8948

L58

A

L

L11

G

L

L

L

ZZZ

L8

X

L90 L71

L24

3 L

EH IMPLEMENT CONTROLS

L24

608-GN-14 X

G

E416-PU-18 138-GN-18 251-BK-18

202-BK-18 P910-BR-18 202-BK-18 299-BK-18 H708-OR-18 H709-BU-18 124-GN-14 647-GN-18 646-OR-18 A525-GN-18 A524-BR-18 A523-PU-18 102-RD-14 144-GN 727-GN-18 C530-BU-18 C529-GY-18 728-BU-18 122-RD 500-BR E701-PK-18 G767-WH-18 G766-GN-18 E702-OR-18 A219-BK-18 944-OR-18 L26 945-BR-18 615-YL-14 608-GN-14 538-BR 505-BU L37 503-BR 504-YL 507-WH 501-GN 502-OR 506-PU 521-YL-14 L33 517-BU-14 515-GY-14 516-GN-14 610-OR-14 617-BR 910-YL-18 720-PU-18 973-BR-18 977-YL-18 614-PU 614-PU H728-GN-18 H729-WH-18

D 120-YL

136-GN-18 L67

L64 L84

299-BK-18 202-BK-18 202-BK-18 202-BK-18 L67

146-GY

112-PU-14 112-PU-14

Z

1 3

CIGAR LIGHTER 9W-0335

200-BK

200-BK

Z TURN SIGNALS 692-YL 108-BU-14 SEAT AIR COMPRESSOR 124-GN-14 BLOWER MOTORS XMSN CNTRLS 126-PK SEC STER 136-GN-18 144-GN BEACON NOT USED 167-OR WIPER MOTORS 118-GY 138-GN-18 PAYLOAD 120-YL VOLT CONVERTER Z Z Z Z Z Z

G G G G G G

C

C

1 L

C IMPLEMENT FUNCTION SELECT SWITCH 116-4509 NOTE B

614-PU 662-YL 661-GN 663-GY

373-GN

202-BK-18 E909-WH-18 E908-BR-18 E905-BU-18 754-BU-18 752-YL-18 751-GN-18 755-OR-18 900-PU-18 901-WH-18 975-WH E904-BR-18 E903-YL-18 E902-PU-18 E907-GY-18 E906-OR-18 E901-GN-18 E900-WH-18 K977-PK-18 709-OR-18 975-WH

A 2

299-BK-18

C BR-14 B BK-14 A RD-14

L63 L64 L65 L66

L90

L64

728-BU-18 944-OR-18 945-BR-18 973-BR-18 977-YL-18 H708-OR-18 H709-BU-18 G767-WH-18 G766-GN-18 299-BK-18 A219-BK-18 251-BK-18 P910-BR-18 614-PU 614-PU H728-GN-18 H729-WH-18 610-OR-14 720-PU-18 E702-OR-18 122-RD 502-OR 501-GN 500-BR E701-PK-18 102-RD-14 910-YL-18 538-BR 118-GY

Z

2 B

C

3 6 1 2 4 5

C

373-GN-18 310-PU 308-YL 201-BK-18 202-BK-18 L51 614-PU 200-BK 539-BU-18 537-GN-14 605-YL-14 606-GY-14 A541-PU-18 540-WH-18

RD-18 +V BK-18 GROUND YL-18 SIGNAL

A B C

299-BK-18

L

LIFT LEVER POS SENSOR 106-4437

RD-18 +V BK-18 GROUND YL-18 SIGNAL

B

299-BK-18 614-PU

A541-PU-18 633-BU-18 537-GN-14 691-GY 518-OR-14 200-BK

146-GY-18 299-BK-18 H711-GN-18

299-BK-18 L 299-BK-18 614-PU

728-BU-18 727-GN-18 975-WH-18

A B C L

L8

L111

L4

L65

15A

123-WH 105-RD 975-WH 727-GN-18 728-BU-18 944-OR-18 945-BR-18 614-PU 118-GY 167-OR 537-GN-14 518-OR-14

L63 L64 L65 L66 L67

L90

L86 L88

101-RD-4 V 175-RD-14

614-PU H716-WH

PK-18 BU-18 YL-18 WH-18 OR-18 1 2 3 4 5 6 A592-BU-18 A593-OR-18 A594-WH-18 A595-GN-18 A596-YL-18

L82 146-GY 146-GY

L85

L94

C530-BU-18

614-PU-14 614-PU L71

126-PK

L65

L69

L69

118-GY

L107 L102

RD RD 1 2

RD RD

RD RD

R

175-RD-12 11 17 107-RD-14 9 21 141-RD 23 199-RD 25 22 13 4 130-RD 102-RD-14 7 122-RD 18 3 114-RD 2 105-RD 109-RD-4 20 16 975-WH 1 304-WH-8 10 306-GN 24 15 8 6 5 12 308-YL 200-BK 14 112-PU-4 19

RELAY PANEL

RD-18 WH-18 BK-18

MOTOR

R 20 HOOD BREAKER 6T-3644

R

2 1

V

R

FUSE HOLDER 4K-5122 10A FUSE 3K-8782

122-RD TAIL/DOME 130-RD STOPLAMP/HOODSW 114-RD FORWARD HORN 105-RD KEY

HOOD UP PWR HOOD UP SW GROUND HOOD DN PWR + BATTERY HOOD DN SW

CONN 7

K933-GN-18 443-YL-18 447-PK-18 496-WH-18 441-OR-18 442-GY-18 432-PK-18 403-GN-18 L88 405-GY-18 322-GY 326-RD 308-YL 310-PU 605-YL-14 606-GY-14 611-PU-14 619-GN-14 130-RD 604-OR 499-GY-18 G485-BU-18 G486-GN-18 118-GY 610-OR-14 720-PU-18 E702-OR-18 500-BR 910-YL-18 502-OR 501-GN E701-PK-18 538-BR

Z

E735-PU-18 201-BK-18 C413-YL-18 E707-GN-18 E708-PK-18 C414-BU-18 663-GY

L23

L23

146-GY-18 299-BK-18 H710-PK-18 L

4TH LEVER POS SENSOR 106-4437

SS

201-BK-18 432-PK-18 202-BK-18 419-YL-18 G764-PK-18 499-GY-18 107-RD-14 200-BK-14 327-PK-14 306-GN 326-RD 727-GN-18 310-PU 311-WH

200-BK 507-WH 506-PU 201-BK-18 442-GY-18 496-WH-18

141-RD 199-RD

L96

BK

15

10A 10A 10A 10A

R R

101-RD-4 109-RD-4

R

398-BU-14

608-GN-14 200-BK-14

R R R

101-RD-12 107-RD-14ENG SHUTDOWN 102-RD-14RUNNING LAMPS

L95

202-BK-18 615-YL-14 608-GN-14 E416-PU-18 506-PU 507-WH 617-BR 727-GN-18 C529-GY-18 C530-BU-18 521-YL-14

15A

Z

15A CIRCUIT BREAKERS 6T-3643

G

Z

RD-18 BK-18 YL-18

+V GROUND SIGNAL

200-BK-14 200-BK 200-BK-14 200-BK 200-BK

C

C

L24

L24

102-RD-14 102-RD-14

L A 146-GY-18 B 299-BK-18 C G947-WH-18

SS XX

V

1 6 5 2 3 4

101-RD 101-RD 101-RD 101-RD

20A

R

X

L84

P

RD-18 BK-18 YL-18

+V GROUND SIGNAL

CONN 23

FRONT DASH ASSEMBLY/STEERING WHEEL

L51

5 C

200-BK-14 200-BK-14 102-RD-14 120-YL A513-PK 135-BU

RIGHT SPEAKER 6T-7695

202-BK-18

R 101-RD-14

125-1302 R 177-RD-8

RUNNING LAMP BREAKER 9H-1958

ALT BREAKER 9S-4693

START RELAY

6T-3643 107-RD-14

U HOOD RAISE/LOWER 149-2612 V 130-RD B A300-GN C A301-WH A V RD 397-OR-14

STOP/TAIL/PARK LAMP 107-4401 V S RD-18 A 604-OR T WH-18 C 614-PU-14 G BK-18 B 200-BK-14 FLOOD LAMP 9X-1439

80A R MAIN BREAKER 9S-4693

ENGINE SHUTDOWN BKR

537-GN-14 615-YL-14 661-GN 662-YL 663-GY L86 113-OR-18 410-WH-18 A541-PU-18 633-BU-18

L111 1 306-GN 2 975-WH R R 304-WH-8

L84

1 2

RD BK

200-BK 614-PU A 2 C 537-GN-14

V

SECONDARY STEERING PRESS SW 3E-6450 BU RD BK

6 202-BK-18 202-BK-18

C

LEFT SPEAKER 6T-7695

120-YL

727-GN-18

200-BK 614-PU 614-PU 727-GN-18 136-GN-18 102-RD-14

C

L55

P910-BR-18

1 4 2 3 5 6

C

511-BR 512-GN

614-PU

B

944-OR-18 945-BR-18 Z

H709-BU-18 H708-OR-18

5

508-PU 509-WH

NN

202-BK-18 419-YL-18 G764-PK-18

311-WH 310-PU 727-GN-18

1

CONN 32

201-BK-18 432-PK-18

A C B

L114 LL

15

R

1 2

373-GN 615-YL-14 608-GN-14

ECPC TRANSMISSION

BK-18 BK-18

ACTION ALARM 3E-6328

L64 L84

X

L88

3RD LEVER POS SENSOR 106-4437

H

646-OR-18 647-GN-18

L67

L67 L88

MOTOR

B+

C 200-BK

113-OR-18 200-BK 614-PU 662-YL 661-GN 663-GY

Z

C

3 C

1 2

SS

NN

2

200-BK-18 507-WH-18 506-PU-18

YY JJJ RIGHT REAR FRAME GND

614-PU-14 200-BK-14 606-GY-14 200-BK-14 614-PU-14 604-OR 608-GN-14

COSA LICENSE PLATE LAMP 125-4439

R

KK

RD-00 BK-00

R

101-RD-12

BK-00

AUX START RECEPTACLE JJJ 144-7929

L114 COSA LICENSE PLATE LAMP 125-4439

101-RD-14 L96 177-RD-8 177-RD-4

7V-9275

KK

BUSS BAR

DISCONNECT SWITCH 7N-0718

BK-18 WH-18

T

L66

TRANS OIL TEMP TRAN INTERMEDIATE SPEED SENSOR 2 SENSOR 100-3055

L111 RELAY PANEL

JJ

RELAY PANEL

RD-00 BK-00

TRAN INTERMEDIATE SPEED SENSOR 1

L67

Z

3

A

L A 146-GY-18 B 299-BK-18 C G942-OR-18

608-GN-14

Z

L64

BK GY BR OR

200-BK-14 200-BK-14 200-BK-14 200-BK-14

S

691-GY 692-YL

647-GN-18 200-BK REAR FLOOD Z Z RELAY Z 3E-5239 Z

B

A 2

CHASSIS GROUND

NN

L103

508-PU 509-WH 512-GN 511-BR A513-PK 200-BK-14 200-BK-14 120-YL 135-BU 102-RD-14

L55

SECONDARY STER TEST SW 143-3001

617-BR 610-OR-14 647-GN-18 646-OR-18

INPUT SPEED SENSOR

RIGHT SIDE ENGINE

CONTROL GP - DIMMER 103-5526 Z 3 + BATTERY 1 GROUND 2 LIGHTS ON 4 SPEEDO LAMP TACH LAMP 5 GAUGE LAMPS 6

C

102-RD-14

ENGINE OIL PRESS SW 9X-0378

ARC SUPPRESSOR 106-8704

1

614-PU

E

SPEED SENSORS (5) 3E-8848 T 1 BK-18 2 WH-18

691-GY 692-YL

T

LH DOME LAMP C 3E-6389 122-RD A RD-18 C WH-18 200-BK B BK-18

LH REAR HEADLINER

105-RD 200-BK

C C2 49A 49 30B 31

TURN IND BUCKET IND WARNING LAMPS +V (TURN SIG) +V (HAZARDS) GROUND

C

2

B

SS

GROUND LEFT FRONT

CONN 22

GND

GN

L16 L17

L17

537-GN-14

L60

L

CAB GROUND

FLASHER 120-4537 MUR440

C

C 6 518-OR-14

REAR WIPER 137-8709

L37

T TORQUE CONVERTER OIL TEMP SENDER 4W-9972

201-BK-18 405-GY-18

1 2

BK-18 BK-18

443-YL-18 E

1 2

T

441-OR-18 443-YL-18

441-OR-18

T T

505-BU 503-BR 504-YL A525-GN-18 A524-BR-18 A523-PU-18 517-BU-14 516-GN-14 515-GY-14 124-GN-14 124-GN-14 133-OR-18 120-YL 144-GN 646-OR-18 138-GN-18 647-GN-18

CONN 14

Z

G H J A B F D E C

C C

L80

L62

200-BK 311-WH

1 24 6 19 XMSN 2 17 11 15 12 5 4 18 20 21 975-WH-18 22 9 14 8 16 10 13 7 23 3 C T

Z

1 2

E924-YL-18 E923-PK-18 E925-OR-18 E926-BU-18 E930-BU-18 E936-WH 167-OR

L115

200-BK 311-WH

T ENGINE COOLANT TEMP SENDER 7N-8532

B

L111

450-YL-18 G939-PK-18

L90

E

E

ENGINE SPEED SENSOR 6V-2455

START AID COOLANT TEMP SW 3E-6425

T

A

E

2 1

WH-18

BK-18

HH

1 2

2 1

BK

BK

BK-4 TO ENGINE BLOCK

BK-18 WH-18

L114

R B+ B- E HH

D+

403-GN-18 109-RD-4

720-PU-18

403-GN-18 109-RD-4

T

L86 L88

975-WH-18 751-GN-18 752-YL-18 754-BU-18 755-OR-18 900-PU-18 901-WH-18 E900-WH-18 E901-GN-18 E906-OR-18 E907-GY-18 E904-BR-18 E905-BU-18 E902-PU-18 E903-YL-18 K977-PK-18 202-BK-18 709-OR-18 E908-BR-18 E909-WH-18

202-BK-18

T REAR AXLE TEMP SW. 155-8999

T L111

201-BK-18

PROP SOLENOID VALVES (6) 159-0932

975-WH-18 975-WH-18 975-WH-18 975-WH-18 975-WH-18 975-WH-18 975-WH-18

BK BK

1 2

L65

L67

L66

TRAN OUTPUT SPEED SENSOR

WH-18 BK-18

RR

G486-GN-18

1ST SOL 6

T

T

202-BK-18

727-GN-18 728-BU-18 ECAP SERVICE 975-WH-18 Z SEC STER TOOL CONN Z INTERMEDIATE RELAY 3E-5239

L81

G

L86 L66

2 1

RR

2ND SOL 5

E900-WH-18 E901-GN-18

201-BK-18

1 2

T

T

202-BK-18 727-GN-18 C530-BU-18 506-PU 507-WH 521-YL-14 617-BR C529-GY-18 E416-PU-18 299-BK-18 604-OR K933-GN-18 L71 443-YL-18 447-PK-18 496-WH-18 441-OR-18 442-GY-18 432-PK-18 403-GN-18 405-GY-18 322-GY 326-RD 308-YL 310-PU 605-YL-14 606-GY-14 611-PU-14 619-GN-14 130-RD 499-GY-18 G486-GN-18 G485-BU-18 608-GN-14 112-PU-4 138-GN-18 102-RD-14 L90 105-RD 123-WH 122-RD 105-RD

200-BK 118-GY 503-BR 505-BU

L67

FUSE PANEL

CONN 11

E907-GY-18 E906-OR-18

E

3RD SOL 4

416-OR-18 484-YL-18 417-GY-18 795-YL-18 306-GN 419-YL-18 251-BK-18 975-WH 334-BU-18 L85 450-YL-18 321-BR-18 453-PK-18 522-WH-14 146-GY G939-PK-18 E919-YL-18 E920-BR-18 H713-PK-18 H714-OR-18 H716-WH H717-BR-18 G764-PK-18 L70 E921-PK-18 E922-GN-18 976-OR 201-BK-18 N939-GN-18 762-YL-18 614-PU-14

L67

L64 L63

L86

L80

4 1 2 6 3 5

C D

HAZARD 1 LAMP SW 112-6167 C 3 538-BR 4

L61

L60 A525-GN-18 A524-BR-18 A523-PU-18

L16

L17

LIFT KICKOUT SET SW (MOM) 116-4506

200-BK

L81 L82 L64

200-BK 614-PU C 614-PU 299-BK-18 200-BK 200-BK 614-PU 614-PU

L80

L81

L82

L67

L65

1 2

G486-GN-18

RIGHT SIDE ENGINE

E

RD RD

T

U 1 975-WH 2 321-BR-18

ALTERNATOR 107-7977

4TH SOL 3

1 2

REV FWD SOL 1 SOL 2

124-GN-14 A525-GN-18 A524-BR-18 A523-PU-18 517-BU-14 516-GN-14 515-GY-14 200-BK-14 522-WH-14

L61

516-GN-14 515-GY-14 124-GN-14 517-BU-14 504-YL

720-PU-18

ECPC TRANSMISSION

RD RD

U

C

CONN 13

L85

L88

L110

L110

1 2

201-BK-18 447-PK-18 321-BR-18 975-WH

CONN 9

L90

L71

L108

327-PK-14 200-BK-14

FUEL LEVEL U SENDER 134-3033

H 2 200-BK-14 1 515-GY-14

1 2 3 4 5 6 7 8 9 10 11 12

L84

CONN 10

109-RD-4 403-GN-18

A B C

BACKUP ALARM 123-6449 BK-18 BK-18

3 9 6 10 1 2 4 5 7 8 11 12

E

201-BK-18 405-GY-18 311-WH 441-OR-18 450-YL-18 G939-PK-18 443-YL-18

1 2

201-BK-18 447-PK-18 321-BR-18 975-WH 175-RD-14 200-BK-14 A300-GN A301-WH 397-OR-14 398-BU-14

L112

U

E

101-RD-4

LEFT SIDE ENGINE

CONN 3 V

ENGINE SHUTDOWN SOLENOID 110-6465

513-OR-14 522-WH-14

975-WH 403-GN-18 441-OR-18 405-GY-18 521-YL-14 522-WH-14 450-YL-18 G939-PK-18 G486-GN-18 443-YL-18 304-WH-8 109-RD-4 101-RD-4

BK-18 WH-18

E

522-WH 513-OR

327-PK-14 521-YL-14 522-WH-14 200-BK-14

TRAN OUTPUT SPEED SENSOR 2

1 2

109-RD-4 403-GN-18

521-YL-14 522-WH-14

311-WH 327-PK-14 200-BK-14 201-BK-18

OR-18 BK-18 WH-18

GN-14 GN-14

E

CONN 5 304-WH-8

101-RD-4 109-RD-4 304-WH-8 975-WH 130-RD 175-RD-14

2 1

513-OR-14 521-YL-14

L115

E

GG

TO ENGINE BLOCK

L115

A/C CLUTCH COIL AS. 3E-1906

200-BK 201-BK-18 405-GY-18 311-WH 441-OR-18 450-YL-18 G939-PK-18 443-YL-18

MOTOR

L70 L69

L88

REAR 101-RD-4

BK-00 1 2

ARC SUPPRESSOR 106-8704

(Dimensions: 39 inches x 24 inches)

GG

5 24 1 4 21 9 11 13 7 22 25 17 20 12 23 2 10 6 14 16 3 15 18 19 8

V

202-BK-18 202-BK-18 202-BK-18

BK-00

L112

BK-18 BK-18

2 3 1

20 Page,

FF

327-PK-14 521-YL-14 522-WH-14 200-BK-14

RD-00 RD-00

D

RENR2174-02

CC BB

MOTOR

RD-00

304-WH-8 G486-GN-18

E

MTR BAT

RD-00

A/C REFRIG SW 114-5333 NOTE A

C

S

E

L111 L110 RD-0 L102

G

L107

L108

LEFT SIDE ENGINE

RD-0

XX

L108

+8V GROUND SIGNAL

JJJ

175-RD-14 130-RD 975-WH 975-WH 975-WH

201-BK-18

RD-00

BB CC

L107

975-WH

STARTER 6V-5227 BLOCK AS. 8C-6358

RELAY PANEL

447-PK-18 605-YL-14 617-BR-14 604-OR 608-GN-14 606-GY-14 614-PU-14 614-PU-14 321-BR-18 175-RD-14 130-RD

200-BK-14 604-OR 608-GN-14 606-GY-14 L114 200-BK-14 614-PU-14 614-PU-14 130-RD 175-RD-14 200-BK-14 975-WH L112 321-BR-18 201-BK-18 447-PK-18

114-RD 107-RD-14 306-GN 200-BK

RD RD

E

L106

306-GN

LEFT FRAME GROUND BOSS

126-PK

40 39 38 37 727-GN-18 12 36 26 28 27 18 795-YL-18 C529-GY-18 3 35 G486-GN-18 34 605-YL-14 14 N939-GN-18 25 975-WH 30 C530-BU-18 4 E919-YL-18 19 E920-BR-18 20 G485-BU-18 33 32 123-WH 614-PU-14 29 606-GY-14 17 506-PU 1 507-WH 2 604-OR 5 608-GN-14 6 617-BR-14 7 617-BR H713-PK-18 8 H714-OR-18 9 H716-WH 10 H717-BR-18 11 G764-PK-18 16 762-YL 15 762-YL-18 761-GY 13 611-PU-14 22 E921-PK-18 21 E922-GN-18 23 24 K933-GN-18 976-OR 31 V C 27 419-YL-18 2 122-RD 30 432-PK-18 5 146-GY 6 201-BK-18 3 130-RD 8 251-BK-18 10 306-GN 11 308-YL 12 310-PU 13 321-BR-18 14 102-RD-14 7 202-BK-18 20 403-GN-18 21 405-GY-18 38 499-GY-18 28 26 417-GY-18 4 138-GN-18 1 105-RD 15 450-YL-18 9 299-BK-18 299-BK 22 522-WH-14 23 416-OR-18 E416-PU-18 24 25 G939-PK-18 29 619-GN-14 31 441-OR-18 32 442-GY-18 33 443-YL-18 34 447-PK-18 36 484-YL-18 16 322-GY 17 521-YL-14 18 326-RD 19 334-BU-18 37 496-WH-18 35 453-PK-18 39 40 V C 1 112-PU-4 2 3 4 5 6 7 C V

201-BK-18 G485-BU-18 484-YL-18 453-PK-18 499-GY-18 727-GN-18 417-GY-18 416-OR-18 496-WH-18 442-GY-18 506-PU 507-WH 202-BK-18 419-YL-18 432-PK-18 G764-PK-18 N939-GN-18 761-GY 976-OR 322-GY 619-GN-14 611-PU-14 138-GN-18 146-GY 251-BK-18 762-YL C530-BU-18 C529-GY-18 H713-PK-18 H714-OR-18 H716-WH H717-BR-18 E919-YL-18 E920-BR-18 E921-PK-18 E922-GN-18 299-BK E416-PU-18 310-PU 326-RD 614-PU-14 617-BR-14 606-GY-14 605-YL-14 605-YL-14 606-GY-14 617-BR-14 614-PU-14 614-PU-14 608-GN-14 321-BR-18 604-OR 447-PK-18 443-YL-18 405-GY-18 441-OR-18 ENGINE 521-YL-14 522-WH-14 403-GN-18 450-YL-18 G939-PK-18 G486-GN-18 975-WH 122-RD RELAY 308-YL PANEL 105-RD 306-GN 102-RD-14 112-PU-4 130-RD

122-RD 102-RD-14 130-RD 105-RD 306-GN 308-YL 112-PU-4

V FF

FRONT

114-RD 107-RD-14 200-BK

BK-OO

200-BK-14 200-BK-14 200-BK 200-BK-14 200-BK-14 200-BK-14 200-BK V 200-BK-14 200-BK-14 200-BK-14 200-BK-14 200-BK-14 200-BK-14 200-BK-14

1 2

LEFT TURN LAMP 162-2073

L106

12V BATTERY 12V BATTERY 115-2422 GP31 115-2422 GP31

FRONT

POS

201-BK-18 201-BK-18

BB NEG

101-RD-4

605-YL-14 200-BK-14

AA

POS

RD-00 RD-00

V

AA NEG

L102

L102

RD-00

605-YL-14 200-BK-14 617-BR-14 604-OR 608-GN-14

1 2

RD-18 BK-18

JJ

604-OR 617-BR-14 200-BK-14 LAMP

BK-00

V RD-18 S A T WH-18 C G BK-18 B STOP/TAIL/PARK 107-4401

RD-00

200-BK-14 200-BK-14 200-BK-14 200-BK 975-WH 107-RD-14 306-GN 114-RD 310-PU N939-GN-18 326-RD 761-GY C530-BU-18 146-GY 299-BK 762-YL 322-GY 619-GN-14 605-YL-14 606-GY-14 617-BR-14 611-PU-14 614-PU-14 E922-GN-18 H714-OR-18 E919-YL-18 E920-BR-18 E921-PK-18 E416-PU-18 H716-WH H713-PK-18 H717-BR-18 976-OR 138-GN-18 251-BK-18 C529-GY-18 432-PK-18 202-BK-18 419-YL-18 G764-PK-18 G485-BU-18 499-GY-18 417-GY-18 416-OR-18 442-GY-18 496-WH-18 507-WH 506-PU 727-GN-18 453-PK-18 484-YL-18 311-WH 327-PK-14 201-BK-18 201-BK-18 201-BK-18

200-BK-14 608-GN-14

V

BLOWER 3E-6392 BK-14 WH/RD-14

CONN 8

F V

THERMOSTAT 3E-5464

L71

L85

HIGHWAYS

FLOOD LAMP 9X-1439

L79

H

L38

WLPCS ECM CIRCUIT

OTHER COLOR DESCRIPTIONS

200-BK-14

124-GN-14 A525-GN-18 A524-BR-18 A523-PU-18 517-BU-14 516-GN-14 515-GY-14 200-BK-14 522-WH-14

L28

L71 L64

L84

L94

L94

WASHER/WIPER CIRCUIT

CAB GND

L70 L69

FRAME GROUND

HEATER AND AIR CONDITIONER CIRCUIT

H

L62

YYY

STRAP AS. 8X-5804 YYY

IMPLEMENT CONTROL CIRCUIT

522-WH-14 H

L79

H709-BU-18 H708-OR-18

614-PU 146-GY 299-BK-18 H719-OR-18 H720-BU-18 E917-WH-18 E918-GN-18 G944-YL-18

TURN SIGNAL CIRCUIT

A526-PK-18 A527-BU-18 A592-BU-18 A593-OR-18 A594-WH-18 A595-GN-18 A596-YL-18 A525-GN-18 A524-BR-18 A523-PU-18 124-GN-14 200-BK-14

H

L82

PARK BRAKE SW 3E-6452

727-GN-18

L15

A272-BK

200-BK 200-BK 614-PU C 614-PU C 202-BK-18 202-BK-18 C 136-GN-18

200-BK-14 200-BK L34 200-BK 200-BK

VVV

PANEL LAMP CIRCUIT

517-BU-14

L38

L15

1 2 3 4 NOT 5 USED 6 7 8

167-OR E936-WH E923-PK-18 E924-YL-18 E925-OR-18 E926-BU-18 E930-BU-18

A B C

BK RD BU

727-GN-18

V

B A C

BOTH SHOWN WITH BRAKE OFF

SECONDARY STEERING RELAY 139-2599

SS

L21

L22

START AID SOLENOID 3E-6332

C

L38

L22

306-GN 326-RD

IMPL FILTER SW 7X-8549

OPTIONS CODE PLUGS (LOC I-7)

YES

YES

TTT

LH REAR HEADLINER

614-PU

VVV

MONITOR CIRCUIT

L84

G

H

RESISTOR 9G-1950 515-GY-14 H

H

L61 L62

POWERTRAIN CONTROL CIRCUIT

516-GN-14

NO

NO

QQQ

3 FUNCTIONS WITH SELECTOR SWITCH

201-BK-18 201-BK-18

201-BK-18 201-BK-18 CAB GROUND

L79

CONN 12

START AID CIRCUIT

WATER VALVE MTR (A) WATER VALVE MTR (B) BLEND DOOR MTR (A) BLEND DOOR MTR (B) BLEND DOOR POS (+) BLEND DOOR POS (SIG) BLEND DOOR POS (-) POTENTIOMETER HI V. USER POTENTIOMETER (COM) +24V GROUND

126-PK

RIGHT REAR CAB FLOOD LAMP 9X-4381

STARTING CIRCUIT

H 12 10 11 9 5 8 3 6 7 4 1 2

201-BK-18

CONN 15 L79

2 FUNCTIONS

L15

L60

MTRMTR+

PK-18 BU-18 WATER VALVE/BLEND DOOR CONTROL ASSEMBLY 126-6010

608-GN-14 200-BK-14

WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS ON

H

A526-PK-18 A527-BU-18

GROUND CIRCUIT WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS OFF

(LOC I-13)

C

YES

YES

RRR

107-RD-14 200-BK-14 327-PK-14

1 2 3 6 4 5

3

499-GY-18

BRAKE OIL PRESS SW 3E-7693 BK RD BU

ENGINE SHUTDOWN CONTROL V 3E-0462 NN 499-GY-18

1 299-BK-18 2 299-BK-18 3 4 5 6 299-BK-18 QQQ

1 2 3 4 299-BK-18 5 299-BK-18 6 299-BK-18 SSS

JOY SITCK LEVER

L15

201-BK-18 E735-PU-18 291-BK-18 290-BK-18 275-BK-18 274-BK-18 273-BK-18 272-BK-18 271-BK-18 270-BK-18 201-BK-18

C

CONN 21

YES

NO

1 299-BK-18 2 299-BK-18 3 4 5 299-BK-18 6 299-BK-18 RRR

E701-PK-18 G767-WH-18 G766-GN-18 E702-OR-18

L81

MONITOR HARNESS CODE PLUG

BLEND DOOR ACTUATOR 126-5611

1 2

L84

L70 L69 L85 L71

L64

251-BK-18 L94

WIRE GROUP COLOR DESCRIPTIONS

CONN 16 L81

CONN J1

3 FUNCTIONS WITH SELECTOR SWITCH

NO

NO

PPP

3 FUNCTIONS WITH DEDICATED 3RD LEVER SSS

1 2 3 299-BK-18 4 299-BK-18 5 299-BK-18 6 299-BK-18 PPP

RD-18 BK-18 BU-18 OR-18 YL-18 WH-18

+ BATTERY GROUND ENG SOL OFF RESET OFF (KEY SW)

OPERATOR STATION

2 FUNCTIONS

OPTIONS CODE PLUG (LOC I-5)

4 L103

FULL ELECTRONIC IMPLEMENT CONTROL CONFIGURATIONS CODE FUNC SELECT AUX VALVES DESCRIPTION PLUG SW (LOC E-9) (LOC E-1) SINGLE AXIS LEVERS

ELECTRONIC HYDRAULIC CONTROL (SEE ELECTRONICS GP 148-5660 FOR S/W AND H/W INFO)

L22

L81

4 3 2 1 C 6 5 4 3 2 1 7 8 C

SERVICE MODE PLUG

614-PU 614-PU-14

BLOWER UNIT WATER VALVE ACTUATOR 126-5610

L82 L16

614-PU 614-PU

5

L48

L82

L94 L71

L15 L16

L72

L94 L71

C530-BU-18 35 24 19 20 H711-GN-18 5 H710-PK-18 4 H720-BU-18 37 23 9 G947-WH-18 10 11 12 15 16 17 18 21 22 25 26 27 28 29 30 31 32 33 34 36 13 38 39 G942-OR-18 6 40 2 7 14 E919-YL-18 1 E920-BR-18 8 H716-WH 3

UNUSED

L73

L15

126-PK

G942-OR-18 H719-OR-18 E917-WH-18 G944-YL-18 G943-BU-18 H715-PU-18 E918-GN-18 H710-PK-18 H711-GN-18 G947-WH-18 H720-BU-18 299-BK-18

L18

L18

A B C

L73

L72

L19

945-BR-18 944-OR-18 307-OR-18 614-PU 200-BK

202-BK-18 G761-YL-18 G762-BR-18

L69

LIFT LINKAGE POS 500Hz UNUSED UNUSED UNUSED TILT LEVER 5000Hz LIFT LEVER 5000Hz BUCKET KO DETENT SOL UNUSED UNUSED 4TH LEVER 5000Hz UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED 3RD LEVER 5000HZ UNUSED UNUSED UNUSED UNUSED 3RD FUNC LIFT PROP SOL 3RD FUNC LOWER PROP SOL SOLENOID RETURN

KEY SW TO B+ SEC STER INTER RELAY SW & SENSOR RETURN ENGINE SPEED RETURN PARK BRAKE SW (N/C) RIDE CONTROL SOL 1 RIDE CONTROL SOL 2 UPSHIFT SW (N/O) UPSHIFT SW (N/C) DOWNSHIFT SW (N/O) DOWNSHIFT SW (N/C) FORWARD SW REVERSE SW NEUTRAL SW + BATTERY + BATTERY - BATTERY - BATTERY UNUSED SEC STER PR SW (N/C) UNUSED UNUSED UNUSED

AUTO/MAN SW-4TH GEAR AUTO/MAN SW-3RD GEAR AUTO/MAN SW-2ND GEAR

L84

L85

728-BU-18 307-OR-18

L19

521-YL-14 517-BU-14 516-GN-14 515-GY-14

L64

L85

VVV LEFT REAR CAB FLOOD LAMP 9X-4381

LIGHTING GP-JAPANESE ROADING

H

L84

L69

L73

L21

L83

614-PU 200-BK

VVV

L85

L81

C

299-BK-18 299-BK-18

L17

612-GY

L70

299-BK-18 202-BK-18

L93

C

L62

V

606-GY-14 200-BK-14

A273-BK A219-BK-18 251-BK-18 251-BK-18 CAB GROUND

L77

L61

1 2

6 L103

L19

G943-BU-18 G944-YL-18 G947-WH-18

K

V

7

H716-WH

L93

158-BR-14 200-BK 200-BK 614-PU 614-PU

612-GY

200-BK

K

1 2

L83 L83

L77

G764-PK-18 976-OR G939-PK-18 N939-GN-18 E920-BR-18 H713-PK-18 H714-OR-18 H716-WH H717-BR-18 E921-PK-18 E922-GN-18 E919-YL-18 762-YL-18 201-BK-18

L18

158-BR-14 158-BR-14

K

BR-18 BK-18

K

L93

L83

521-YL-14

BACKUP LAMP 126-9288

606-GY

K

614-PU-14 604-OR 200-BK-14

945-BR-18 944-OR-18 945-BR-18 944-OR-18

124-GN-14 200-BK 124-GN-14 614-PU

YL-18 BK-18

C A B

L74

L16

L28

TU G

614-PU 604-OR

K

V

945-BR-18 945-BR-18 944-OR-18 944-OR-18 L74

334-BU-18 321-BR-18 450-YL-18 975-WH 453-PK-18

PU-18 OR-18 BK-18

K

608-GN-14 200-BK-14 200-BK-14

TA S G

K

CONN 1

608-GN-14 200-BK-14

RIGHT STOP/TAIL/ PARK/TURN LAMP 4Y-3264

L103

614-PU-14

608-GN-14 200-BK-14

V

YL

L69

L60

L103 LICENSE PLATE LAMP 5A-3808

C

C

945-BR-18 944-OR-18

L73

POWERTRAIN CONTROL 160-1758

L15

(LOC H-9)

CONN J2

C

L62

MONITOR HARNESS CODE PLUGS

612-GY

CONN J1

L61

H728-GN-18 H729-WH-18 P910-BR-18 G767-WH-18 G766-GN-18 944-OR-18 L74 945-BR-18 973-BR-18 977-YL-18 L93 H708-OR-18 H709-BU-18 299-BK-18 A219-BK-18 L77 251-BK-18 728-BU-18 614-PU L72 614-PU

7X-6315 STRAP MOUNTING BOLT

A525-GN-18 A524-BR-18 A523-PU-18

C

MOUNTING BOLT

453-PK-18

275-BK-18 274-BK-18 273-BK-18 272-BK-18 271-BK-18 270-BK-18 201-BK-18

7X-6315 STRAP

L73

612-GY

130-RD V 30 85 V 975-WH 87 86 321-BR-18

V

BBB C 6 201-BK-18 5 4 201-BK-18 3 2 201-BK-18 1 7 201-BK-18 8

L81

V

CONN 15

972G

605-YL-14 200-BK-14

8 OPERATOR STATION

POWERTRAIN CONTROL (SEE ELECTRONICS GP 148-5661 FOR S/W AND H/W INFO)

L16

1 2

V

G767-WH-18 G766-GN-18 973-BR-18 977-YL-18 H728-GN-18 H729-WH-18 307-OR-18 728-BU-18 202-BK-18 G939-PK-18 G764-PK-18 976-OR N939-GN-18 F785-WH-18 F783-GN-18 F781-BR-18 F784-YL-18 G750-BU G755-GY G763-PU 126-PK 126-PK A273-BK A273-BK

K

1 2

L19

87A

JAPAN BACKUP LAMP RELAY 4Y-6135

612-GY

200-BK

K

K

L70

K

BR-18 BK-18

BACKUP LAMP 126-9288

606-GY

CLUTCH 1 SOL (REV) CLUTCH 2 SOL (FWD) SOLENOID RETURN DUAL HP SOL (962G) START RELAY PARK BRAKE SW (N/O) CAT DATA LINK + SEC STER TEST SW CAT DATA LINK UNUSED RIDE CONTROL SW 2 RIDE CONTROL SW 1 AUTO/MAN SW-MANUAL

K

617-BR 604-OR 200-BK-14

9

17 11 7 10 8 36 9 37 3 20 22 21 29 31 32 33 40 4 16 15 27 18 12 23 19 26 25 30 14 13 1 6 2 5 24 38 35 39 28 34

YL-18 BK-18

C A B

751-GN-18 752-YL-18 975-WH 795-YL-18 306-GN 419-YL-18 944-OR-18 P910-BR-18 945-BR-18

TU G

614-PU 604-OR

945-BR-18 944-OR-18

K

L71

PU-18 OR-18 BK-18

L84

I

K

TA S G

CONN 4

10

OPERATOR STATION

275-BK-18 274-BK-18 273-BK-18 272-BK-18 271-BK-18 270-BK-18 201-BK-18

CONN J2

LEFT STOP/TAIL/ PARK/TURN LAMP 4Y-3460

V

AAA C 201-BK-18 6 5 4 201-BK-18 3 2 201-BK-18 201-BK-18 1 201-BK-18 7 8

11

2 1

CONN 15

966G

K

12 L103

538-BR 606-GY-14

13

SEC STER PR SW N/O PRIM STER PR SW N/C PRIM STER PR SW N/O NEUTRALIZER SW UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED AIR INLET HTR RELAY BACKUP ALARM ENGINE SPEED UNUSED UNUSED SOLENOID RETURN INPUT SPEED + INPUT SPEED INTER SPD TRAIL + INTER SPD LEAD OUTPUT SPD TRAIL INTER SPD TRAIL INTER SPD LEAD + OUTPUT SPD TRAIL + AIR INLET HTR SW TRANS OIL TEMP SENSOR SUPPLY +8V UNUSED TRANS OUT SPD (+) CLUTCH 3 SOL (4TH) CLUTCH 4 SOL (3RD) CLUTCH 5 SOL (2ND) CLUTCH 6 SOL (1ST) TRANS OUT SPD (-)

14

416-OR-18 11 484-YL-18 6 417-GY-18 10 720-PU-18 4 9 15 39 40 34 33 32 17 16 13 26 22 334-BU-18 19 321-BR-18 37 450-YL-18 38 28 27 975-WH 3 E908-BR-18 29 E909-WH-18 23 E904-BR-18 36 E903-YL-18 35 E907-GY-18 31 E905-BU-18 30 E902-PU-18 24 E906-OR-18 25 373-GN 5 K977-PK-18 18 709-OR-18 12 21 E900-WH-18 20 754-BU-18 7 755-OR-18 1 900-PU-18 8 901-WH-18 2 E901-GN-18 14

15

MM

MOTOR

MM

FRONT WASHER 7T-8890

3

HYD TEMP SENDER 4W-9972

DATA LINK WIRES (944-OR & 945-BR) AND ENGINE SPEED SIGNAL WIRES (450-YL & G939-PK) AND TRANSMISSION SPEED SENSOR WIRES (E900-WH & E901-GN),(E902-PU & E903-YL), (E904-BR & E905-BU), (E906-OR & E907-GY),(E908-BR & E909-WH) MUST BE TWISTED PAIRS AT LEAST 1 TURN PER 25.4mm NOTE A: NORMALLY OPEN BEFORE REFRIGE RANT CHARGE NOTE B: PROVIDES 3RD FUNCTION WITH JOYSTICK CONTROL NOTE C: SWITCHES ACTUATED WHEN PEDALS ARE FULLY UP, DE-ACTUATED UPON DEPRESSING PEDALS

UNLESS OTHERWISE SPECIFIED, ALL WIRE IS 16 GAUGE

E75259

2

1

THIS SCHEMATIC IS FOR THE 966G and 972G WHEEL LOADER ELECTRICAL SYSTEM MEDIA NUMBER: RENR2174-02 SCHEMATIC PART NUMBER: 153-8943, CHANGE: 00, VERSION: Components are shown installed on a fully operable machine with the key and engine off, transmission shifter in neutral and with parking brake set.

Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.