©
1998 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR1438
February 1998
120H and 135H Motor Graders,
120H Motor Grader, Australian Version
Electrical System
120H:
4MK1-403
2AN1-103
135H:
3YK1-266
NA Version
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded
by being fastened to the machine.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
FUSE - A component in an electrical circuit that will open the circuit if too much current flows
through it.
REED SWITCH - A switch whose contacts are controlled by a magnet. A magnet closes the
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
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.
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.
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too
much current flows through it. This does not destroy the circuit breaker and it can be reset to
become part of the circuit again.
SOLENOID - A solenoid is an electrical component that is activated by electricity. It has a coil
that makes an electromagnet when current flows through it. The electromagnet can open or
close a valve or move a piece of metal that can do work.
Harness And Wire Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plugand receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is
activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch)
that make electromagnet when current flows through them. It also has an internal switch that places
the latch coil circuit open at the time the coil latches.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits (Continued)
101 RD
Bat (+)
503 BR
Wiper - Rear (Park)
102 BU
Hd Lmp
504 YL
Wiper - Rear (Low)
103 YL
Aux Ckt
505 BU
Wiper - Rear (HI)
105 BR
Key Sw
506 PU
Washer - Front
107 WH
Eng Shut
507 WH
Washer - Rear
108 BU
Aux Ckt
508 PU
Radio Speaker - Left
109 OR
Alt Output (+) Term.
509 WH
Radio Speaker - Left (Commom)
112 PU
Main Power Rly Output
511 BR
Radio Speaker - Right
113 OR
Opr Mon Panel B+ Switched
512 GN
Radio Speaker - Right (Common)
114 GN
Warning Horn (Forward)
513 OR
A/C Compressor/Refrigerant Pressure SW
115 PK
Aux Ckt
515 GY
Blower Motor (HI)
116 BR
Aux Ckt
516 GN
Blower Motor (Medium)
118 GY
Aux Ckt
517 BU
Blower Motor (Low)
119 PK
Aux Ckt
521 YL
A/C SW To Refrigerant SW
122 BU
Aux Ckt
522 WH
A/C Clutch To Thermostat SW
124 GN
A/C
537 GN
Turn Signal SW To Flasher
126 PK
Xmsn Ctrl
556 WH
Differential Lock
130 GN
Aux Ckt
570 BU
Blade Cushion Sol
134 YL
Aux Ckt
575 YL
Wiper - Aux (Park)
136 GN
Suppl Ster
576 PK
Wiper - Aux (Low)
141 PK
Aux Ckt
577 PU
Wiper - Aux(Hi)
144 GN
Aux Ckt
578 BU
Washer—Aux
149 PU
Aux Ckt
584 YL
Wiper SW Jumper
151 GN
Aux Ckt
592 BU
DC/DC Converter Power Output
152 BU
Aux Ckt
593 GN
Condensor Fan Relay To Motors
158 BR
Aux Ckt
597 PU
A/C HI Press. Coutout SW To Low Press. SW
160 PU
Aux Ckt
A503 PK
Front Defroster Fan (Low)
165 YL
Aux Ckt
A504 GN
Rear Defroster Fan (Low)
169 PK
Aux Ckt
A506 OR
Front Defroster Fan (HI)
173 YL
Aux Ckt
A507 YL
Rear Defroster Fan (HI)
176 OR
Aux Ckt
A513 PK
DC/DC Converter Memory Output
Ground Circuits Lighting Circuits
200 BK
Main Chassis
600 BR
Dash Lamp Basic
201 BK
Operator Monitor Return
601 GY
Dash Lamp Hi
202 BK
XMSN Ctrl
604 PK
Rotary Beacon
203 BK
Chassis Diagnostic
604 OR
Stop Lamp
207 BK
Starter Diagnostic
605 YL
Turn Lamp—Left
277 BK
XMSN Ctrl Ident Code 1
606 GY
Turn Lamp - Right
278 BK
XMSN Ctrl Ident Code 2
608 GN
Flood Lamp - Rear
Basic Machine Circuits
609 YL
Flood Lamp - Side
301 BU
Starter Sol
611 PU
Head Lamp Hi
302 OR
Starter Resistor to Diagnostic
614 PU
Park/Tail/Dash/Lamp
304 WH
Starter Relay No. 1 Output
619 GN
Head Lamp Lo
306 GN
Starter Relay Coil To Neut Start SW Or Key SW
629 PK
Aux Head Lamp
307 OR
Key SW To Neut Start SW
Control Circuits
308 YL
Main Power Relay Coil
710 GN
XMSN Speed Pickup
310 PU
Start Aid SW To Start Aid Sol
727 GN
Suppl Ster Motor Relay
311 WH
Start Aid Sol To Temp SW
728 BU
Suppl Ster Cont SW
321 BR
Bckp Alarm Lamp Travel Alarm
751 GN
XMSN Shift Sol No. 1 Or 3
322 GY
Warning Horn (Forward)
752 YL
XMSN Shift Sol No. 2
326 PU
Key SW “C” Term.
754 BU
XMSN Shift Sol No. 3 Or 1
334 BU
Start Aid Sol #2
755 OR
XMSN Shift Sol No. 4 Or 5
373 GN
Start Aid Switch To Timer
758 GN
AWD Clutch Sw
Monitoring Circuits
796 YL
Dual Hp Sol
403 GN
Alternator (R) Term.
B751 BU
Centershift Lock
404 YL
Opr Mon Hyd Oil Temp
F769 BU
AWD To Inch Pedal SW
405 GY
Opr Mon Oil Press. (Low Setting)
892 BR
Start Mod Right (-) Port/CAT Data Link (-)
406 PU
Opr Mon Coolant Temp
893 GN
Start Mod Right (+) Port/CAT Data Link (+)
408 WH
Opr Mon System Air Press.
B899 OR
AWD Agressiveness Cont Lever
409 OR
Opr Mon Neut
G865 BU
12 Volt Switch Power
410 WH
Opr Mon Fault Alarm
900 PU
XMSN Shift Sol No. 4
411 PK
Opr Mon Master
901 WH
XMSN Shift Sol No. 6
413 BR
Opr Mon Fuel Press.
902 BR
XMSN Shift Sol No. 7
415 GN
Opr Mon Test SW
903 GY
XMSN Shift Sol No. 8
417 GY
Primary Ster SW
921 WH
XMSN Sol No 1 Or 3 Return
419 YL
Opr Mon Parking Brake
977 YL
CST Autoshift - Auto/Manual SW 1
439 YL
Lamp Indicator
E937 PU
MG MESH CNTL - Redundant Neutral
441 OR
Eng Coolant Temp Gage
E938 OR
MG MESH CNTL - First Gear
447 PK
Fuel Level Gage
E939 WH
MG MESH CNTL - Second Gear
449 BU
Spdom Sender (Signal No. 1)
E940 BU
MG MESH CNTL - Third Gear
450 YL
Tach Sender (+)
E941 YL
MG MESH CNTL - Fourth Gear
462 YL
Suppl Ster Motor Indicator
E942 GN
MG MESH CNTL - Fifth Gear
467 WH
System Fault (Xmsn)
E943 BR
MG MESH CNTL - Sixth Gear
485 YL
Opr Mon Panel AWD Fault
E944 GY
MG MESH CNTL - Seventh Gear
488 WH
Air SW To Air SW Jumper
E945 PU
MG MESH CNT - Eighth Gear
A429 YL
Articulation Indicator
E946 OR
MG MESH CNTL - Forward Direct
B426 BU
AWD Hydraulic Temp Sensor
E947 WH
MG MESH CNTL - Reverse Direct
G460 GN
Transmission Temperature SW
E948 BU
MG MESH CNTL - Park
Accessory Circuits
E949 YL
MG MESH CNTL - Neutral
500 BR
Wiper - Front (Park)
E975 PU
MESH Lamp
501 GN
Wiper - Front (Low)
M917 PK
TOS Sensor +
502 OR
Wiper - Front (HI)
M918 GN
TOS Sensor -
M998 OR
Transmission Autoshift Mode
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 D-15 31
CONN 2 E-15 31
CONN 3 E-15 31
CONN 4 A-14 41
CONN 5 A-14 27
CONN 6a A-14 8
CONN 6b A-14 8
CONN 7 Starting and Charging Diagnostic E-14 45
CONN 8 F-14 36
CONN 9 F-14 42
CONN 10 B-13 37
CONN 11 B-13 37
CONN 12 B-13 37
CONN 13 D-13 22
CONN 14 D-13 37
CONN 15 D-13 37
CONN 16 E-13 3
CONN 17 B-12 10
CONN 18 D-12 43
CONN 19 D-12 43
CONN 20 D-12 43
CONN 21 E-12 43
CONN 22 E-12 43
CONN 23 E-12 43
CONN 24 E-12 43
CONN 25 F-12 43
CONN 26a A-11 38
CONN 26b B-11 38
CONN 26c A-11 38
CONN 27 F-11 44
CONN 28a B-10 C
CONN 28b A-9 C
CONN 29a C-10 33
CONN 29b C-10 33
CONN 30 C-10 21
CONN 31 D-10 39
CONN 32 D-10 39
CONN 33 D-10 39
CONN 34 D-10 B
CONN 35 D-10 B
CONN 36 B-9 38
CONN 37 B-9 38
CONN 38 E-9 39
CONN 39 F-9 39
CONN 40 A-8 10
CONN 41 B-8 38
CONN 42 D-8 39
CONN 43 D-8 39
CONN 44 D-8 39
CONN 45 D-8 39
CONN 46 B-7 38
CONN 47 B-7 38
CONN 48 Service Tool B-7 C
CONN 49a F-7 20
CONN 49b F-7 20
CONN 50 A-6 40
CONN 51 C-6 40
CONN 52 C-6 17
CONN 53 C-6 17
CONN 54 C-6 17
CONN 55 D-6 17
CONN 56 E-6 17
CONN 57 E-6 17
CONN 58 E-6 17
CONN 59 C-5 40
CONN 60 C-5 40
CONN 61 B-3 46
CONN 62 E-3 47
CONN 63 E-3 47
CONN 64 F-3 17
CONN 65 F-3 17
CONN 66 F-12 37
The connectors shown in this chart are for harness to harness connectors.
Connectors that join a harness to a component are generally located at or near the
component. See the Component Location Chart.
Related Electrical Service Manuals
Form Number
Alternator: 6N-9294 (35A) Std
Consist No. 3T-6352
Consist No. 7N-9720
Consist No. 9G-4574
SENR4978
SENR2082
SENR4130
Alternator: 100-5047 (50A) Atch
Consist No. 100-5046
Consist No. 100-5045
SENR2082
SENR4130
Electronic Monitoring System SENR2945
Transmission Electronic Shift Control SENR6982
Starting And Charging Systems SENR2947
Starting Motor: 106-8558
Consist No. 106-8557
Consist No. 106-8559
SENR3559
SENR3581
Title
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
2M-9346 Stop Lamp Pressure
45 kPa
(6.5 psi)
5.0 kPa MIN
(0.7 psi MIN)
Normally Open
3E-2033 Brake/Park Brake Air Pressure
640 kPa MAX
(92.0 psi MAX)
530 ±40 kPa
(77.0 ± 6.0 psi)
Normally Open
8C-3569 Coolant Temperature
38.00 ± 3.0 °C
(1 00.4° ± 5.4 °F)
27.0 °C MIN
(80.6°F MIN)
Normally Closed
8T-8640 Steering Pressure
1206 kPa MAX
(175.0 psi MAX)
700.0 ± 103 kPa
(101.5 ± 15.0 psi)
1-2 Normally Open
1-3 Normally Closed
8T-9705 Hydrualic Oil Temperature
82.22 ± 2.78 °C
(180.0 ± 5.00 °F)
74.00 °C MIN
(165.2°F MIN)
Normally Closed
8T-9793 Engine Coolant Temperature
107.0 ± 3.0 °C
(224.6 ± 5.4 °F)
93.00 °C
(199.4 °F)
Normally Closed
9X-0378 Engine Oil Pressure
62.0 kPa MAX
(9.00 psi MAX)
38 ± 20 kPa
(5.5 ± 3.0 psi)
Normally Open
111-7088 Inching Pedal Pressure
75.0 kPa MAX
(10.9 psi MAX)
50.0 kPa MIN
(7.30 psi MIN)
Normally Open
114-5334 Refrigerant Pressure (A/C)
275 to 1750 kPa¹
(40 to 255 psi)
—
—
Normally Open²
115-7103 Fuel Pressure
93.0±21 kPa
(13.5 ± 3.0 psi)
69±21 kPa
(10 ± 3.0 psi)
Normally Closed
² Contact position at the contacts of the harness connector.
¹A 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 (25 psi).
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-1906
Solenoid - A/C Clutch
17.6±0.6
3E-5383
Sender - Articulation
3 to 97
3T-3123
Resistor - PanelDimmer
25.0 ± .3
4W-9972
Sender - Coolant Temperature
560 to 716 @ 54°C (130°F)
72 to 82 @ 110°C(230°F)
6T-2217
Resistor - Starting/Charging Diagnostic
150 ± 7.5
7T-4003
Resistor - Power
10.0±0.5
7T-6517
Solenoid - Blade Cushion
20.1 ± 1.0
7T-9073
Solenoid - Differential Unlock
33.6 ± 1.0
7T-9074
Solenoid - Forward Horn/Park Brake
55.17 ± 5.77
8C-3663
Solenoid - Engine Shutdown
Start (Latch) Coil
Stop (Unlatch) Coil
1.55 ± 0.15
10.3± 1.03
8T-8808
Solenoid - Centershift
34.3 ± 1.7
9G-1950
Resistor - Blower Speed
Overall 2.00 ± .10 Tap 1.00 ± .05
9G-4365
Solenoid - Start Aid
6
9W-2739
Solenoid - Transmission
31 ± 3
104-6387 Sender - Transmission Speed 1000 to 1200
¹ At room temperature unless otherwise noted.
Code
Flashed
CID - FMI Description
11 N/A
No diagnostics active
12 N/A
No logged diagnostic codes
21 641 F05
Transmission Solenoid A open circuit
22 642 F05
Transmission Solenoid B open circuit
23 643 F05
Transmission Solenoid C open circuit
24 644 F05
Transmission Solenoid D open circuit
25 645 F05
Transmission Solenoid E open circuit
26 646 F05
Transmission Solenoid F open circuit
27 647 F05
Transmission Solenoid G open circuit
28 648 F05
Transmission Solenoid H open circuit
31 641 F06
Transmission Solenoid A short to ground
32 642 F06
Transmission Solenoid B short to ground
33 643 F06
Transmission Solenoid C short to ground
34 644 F06
Transmission Solenoid D short to ground
35 645 F06
Transmission Solenoid E short to ground
36 646 F06
Transmission Solenoid F short to ground
37 647 F06
Transmission Solenoid G short to ground
38 648 F06
Transmission Solenoid H short to ground
41 641 F03
Transmission Solenoid A short to battery
42 642 F03
Transmission Solenoid B short to battery
43 643 F03
Transmission Solenoid C short to battery
44 644 F03
Transmission Solenoid D short to battery
45 645 F03
Transmission Solenoid E short to battery
46 646 F03
Transmission Solenoid F short to battery
47 647 F03
Transmission Solenoid G short to battery
48 648 F03
Transmission Solenoid H short to battery
52 637 F06
Backup alarm short to ground
54 444 F05
Starter relay open circuit
55 444 F06
Starter relay short to ground
56 444 F03
Starter relay short to battery
58 688 F06
VHP solenoid short to ground
59 688 F03
VHP solenoid short to battery
61 668 F02
Shift lever input invalid
62 668 F03
Shift lever open/short to +battery
63 269 F00
Sensor supply voltage above normal
64 269 F01
Sensor supply voltage below normal
65 701 F02
Transmission output speed signal incorrect
68 168 F01
System voltage below normal
71 520 F02
Invalid transmission configuration code
72 268 F02
Check programmable parameters
73 764 F05
Transmission indicator lamp open circuit
74 764 F06
Transmission indicator lamp short to, ground
75 764 F03
Transmission indicator lamp short to battery
77 762 F04
Transmission oil temperture switch
short to ground
Transmission Diagnostic Code Conversion
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Action
B-8 C
Solenoid - Centershift
B-3 29
Alarm - Backup
F-15 1
Solenoid - Differential Unlock
E-14 4
Alternator (35A STD)
D-14 2
Solenoid - Dual Horsepower
A-1 3 22
Battery
C-14 5,6
Solenoid - Engine Shutdown
D-13 22
Beacon
A-12,C-10 7
Solenoid - Forward Horn
F-3 10
Breaker - Alternator
D-13 8
Solenoid - Park Brake
B-1 2 10
Breaker - Convertor
F-11 13
Solenoid - Start Aid
A-1 3 25
Breaker - Headlamp
D-1 0 B
Solenoids - Blade Cushion
E-2 30
Breaker - Lightbar
D-10 B
Solenoids - Transmission Valve (8)
D-15, E-15 31
Control - Neutral Start
A-8 10
Speedometer
F-5 A
Control - Supplement Steer
E-1 3 9
Switch - A/C Refrigeration
A-13 22
Control - Transmission
A-7 11
Switch - Air Dryer
F-14 31
Converter - Voltage
F-10 12
Switch - Autoshift
A-9 C
Converter - Voltage
F-1 2 13
Switch - Beacon
B-5,10 C
Electronic Monitoring System(EMS)
E-6 A
Switch - Blower (A/C)
B-10 C
Flasher
E-10 B
Switch - Blower (Heater)
A-10 C
Fuses
B-6 C
Switch - Brake Air Pressure
A-2 11
Fuses
D-9 B
Switch - Centershift Indicator
B-3 29
Fuses
E-10 B
Switch - Centershift Pin
B-9 C
Gauge - Articulation
F-5 A
Switch - Coolant Temp (Monitor)
B-14 24
Gauge - Coolant Temperature
F-5 A
Switch - Coolant Temp (Start Aid)
A-14 24
Gauge - Fuel Level
E-5 A
Switch - Cushion Blade
B-9 C
Ground - Cab Frame to Front Frame
D-5 17
Switch - Defroster (Front)
A-5 C
Ground - Front Frame
D-6 39
Switch - Defroster (Rear)
B-5 C
Meter - Service
E-10 B
Switch - Differential Unlock
D-9 B
Motor - Blower (A/C group)
B-10 14
Switch - Disconnect
C-14 6
Motor - Blower (Heater group)
A-10 E
Switch - Engine Oil Pressure
C-13 32
Motor - Defroster
A-12,E-4 15
Switch - Flood Lamps
D-8 B
Motor - Starter
C-13 19
Switch - Forward Horn
E-9 B
Motor - Supplemental Steer
F-13 20
Switch - Fuel Pressure
B-13 24
Motor - Washer (Front Lower)
F-6 16
Switch - Head/Tail Lamp
E-8 B
Motor - Washer (Front Upper)
F-6 16
Switch - Headlamp Dimmer
D-9 B
Motor - Washer (Rear)
F-6 16
Switch - Hydraulic Oil Temperature
C-11 33
Motor - Wiper (Front Lower)
C-4 17
Switch - Inching Pedal Pressure
D-15 31
Motor - Wiper (Front Upper)
D-4 17
Switch - Key Start
B-9 C
Motor - Wiper (Rear)
B-11 18
Switch - Light Bar Low Beam
E-8 B
Motors - Condenser
C-11 21
Switch - Monitor (EMS) Test
E-8 B
Relay - Condenser
C-11 21
Switch - Panel Lamp Dimmer
E-9 B
Relay - Main
D-14 8
Switch - Park Brake Pressure
B-11 34
Relay - Start
D-13 8
Switch - Primary Steer
F-10 35
Relay - Supplemental Steer
F-13 22
Switch - Start Aid/Monitor Test
E-10 B
Resistor - Blower Speed
A-11 ,E-4 E
Switch - Stoplamp Pressure
A-2 11
Resistor - Blower Speed (A/C)
B-11 15
Switch - Supplemental Steer Test
B-8 C
Resistor - Blower Speed (Heater)
A-11 E
Switch - Tail Lamp
D-8 B
Resistor - Panel Lamp Dimmer
E-9 B
Switch - Transmission Direction & Speed
A-B C
Resistor - Starting/Charging Diagnostic
C-14 19
Switch - Transmission Oil Temp
E-15 31
Sender - Articulation
C-12 23
Switch - Turn Signal
D-9 B
Sender - Engine Coolant Temp
A-14 24
Switch - Wiper (Front Lower)
A-4 C
Sender - Fuel Level
A-13 25
Switch - Wiper (Front Upper)
B-4 C
Sender - Transmission Speed
D-15 28
Switch - Wiper (Rear)
A-4 C
Sensor - Engine Speed
B-1 4 26
Tachometer
E-5 A
Solenoid - A/C Clutch
A-1 3 22
Thermostat (A/C)
B-11 E
Machine Locations are repeated for components located close together.
A =Operator’s compartment (Dash).
B =Operator’s compartment (Steering console).
C =Operator’s compartment (Right side console).
D =Operator’s compartment (Headliner).
E =Operator’s compartment (Under seat).
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
37
35
33
34
36
38
7
39
40
41
42
43
44
45
46
47
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
25
26
27
28
29
30
31
32
37
35
33
34
36
38
7
39
40
41
42
43
44
46
24
45
Machine Harness Connector And Component Locations
E25310
2
1
6
5
4
3
8
2
7
1
6
9
5
4
3
2
10
1
6
1
2
3
4
8
5
7
C
B
A
C
B
A
1
2
2
1
TRANS SPD SENDER
104-6387
710-GN
202-BK
200-BK
608-GN
608-GN
PK-18
BR-18
BK-18
BU-18
PU-18
OR-18
GN-18
STEER SW
ALTERNATOR
WH-18
YL-18
GROUND
1
2
9
6
8
4
5
3
7
+ BATTERY
KEY SW
GN-18
GY-18
MOTOR RELAY
OPR PANEL
STEERING
MOTOR
116-4531
STEERING
RELAY
3E-0154
STEERING CONTROL
3E-5184
G
RD-0 RD-0
MOTOR
5
16
17
3
7
2
9
1
12
8
6
4
13
10
11
15
18
19
20
14
S
T
109-OR-10
122-BU-14
200-BK
1
2
BK
BK
AIR DRYER
8W-3087
°
T
605-YL
604-OR
614-PU
606-GY
321-BR
1
2
321-BR
200-BK
200-BK
606-GY
614-PU
604-OR
BACKUP
ALARM
3T-1815
326-PU
200-BK-10
301-BU-10
306-GN
310-PU
311-WH
203-BK
207-BK
302-OR
109-OR
101-RD
112-PU
308-YL
306-GN
304-WH
112-PU
112-PU-4
304-WH-10
101-RD
101-RD-4
DIFFERENTIAL
UNLOCK SOLENOID
7T-9073
200-BK-4
200-BK
136-GN
308-YL
200-BK
200-BK
728-BU
403-GN
903-GY
ALTERNATOR
BREAKER
2H-1507 STD
9S-0174 ATCH
9S-4693 ATCH
902-BR
60A
901-WH
921-WH
900-PU
755-OR
754-BU
752-YL
122-BU-14
200-BK
200-BK
921-WH
751-GN
403-GN
109-OR-4
109-OR
604-OR
614-PU
606-GY
321-BR
200-BK
200-BK
727-GN
417-GY
1
2
GND
START
STOP
921-WH
903-GY
921-WH
902-BR
921-WH
901-WH
921-WH
900-PU
921-WH
755-OR
921-WH
754-BU
921-WH
752-YL
921-WH
751-GN
1
2
2
1
SOL 4
SOL 8
SOL 7
SOL 3
1
2
2
1
1
2
2
1
SOL 2
SOL 6
SOL 5
SOL 1
1
2
2
1
9W-2739
9W-2739
9W-2739
9W-2739
9W-2739
9W-2739
9W-2739
9W-2739
604-OR
614-PU
200-BK
RD
WH
BK
REAR FLOOD
LAMP
9X-6775
308-YL
308-YL
200-BK
ALTERNATOR
100-5047 50A ATCH
3E-7577 75A ATCH
6N-9294 35A STD
MAIN
RELAY
101-7740
START
RELAY
3E-7279
35A
109-OR-4
304-WH
ALT
+
R
1
3
2
605-YL
200-BK
RD
BK
STOP/TAIL
LAMP
8C-6207
TURN LAMP
7X-6066
INCHING PEDAL
PRESSURE SW
(TRANSMISSION)
111-7088
BK
BK
F
202-BK
758-GN
758-GN
202-BK
D
200-BK
200-BK
200-BK
200-BK
B
B
B
B
311-WH
109-OR
112-PU
308-YL
306-GN
304-WH
101-RD
310-PU
308-YL
Y
310-PU
308-YL
306-GN
Y
311-WH
Y
C
112-PU-4
Y C
2
1
202-BK
L69
L69
L69
L62
L62
L62
G865-BU
G460-GN
L68
L68
L60 L60
L60
L48
L48
L48
L46
L46
L51 L51
L51
L50
L50
F
G460-GN
G865-BU
N N
202-BK
G865-BU
G460-GN
OR-18
BK-18
GROUND
V+
SIGNAL
YL-18
TRANSMISSION
OIL TEMP SW
136-2632
202-BK
Y
710-GN AND
202-BK ARE
TWISTED PAIR
SHUTDOWN
SOL
8C-3663
200-BK
Y
Y
80A
STARTING AND CHARGING
DIAGNOSTIC CONNECTOR
Y
1
2
710-GN AND 202-BK ARE TWISTED PAIR
B
200-BK
556-WH
BK-18
GN
GN
200-BK
727-GN
462-YL
WH-18
V EEEE
556-WH
1
2
105-8827 DIODE AS.
202-BK
710-GN
101-RD-4
105-BR
Y
Y
Y Y
1
2
Y
B
Y
109-OR-4
B
B
109-OR-4
200-BK
200-BK
Z
Z
XX
YY
B
YY
WW
Y
V
F
N
N
N
N
N
N
1
2
E
HHDD
N
N
D
E
D
D
D
E
200-BK
N
2
1
2
1
2
1
3
8
6
7
8
2
3
4
1
5
7
6
6
1
1
2
7
2
1
2
1
4
5
3
5
4
3
2
1
2
1
1
2
2
1
2
L69
200-BK
608-GN
A/C REFRIGERANT SW
114-5334
NOTE A
L
H
301-BU
302-OR
RESISTOR
6T-2217
101-RD-4
201-BK
405-GY
BK
BK
200-BK
°T
608-GN
BK
BK
1
2
200-BK
200-BK
2
207-BK
203-BK
RD-00
RD-00
1
301-BU
BK-00
2
1
450-YL
202-BK
WH
BK
REAR
FRAME
ENGINE
OIL SW
9X-0378
311-WH
310-PU
1
2
BK-18
BK-18
START AID
SOLENOID
9G-4365
NOTE F
FUEL LEVEL
SENDER
120-9588
513-OR
597-PU
GN-18
BK-18
447-PK
200-BK
G
1
2
ENGINE SPEED
SENSOR
3E-7886
COOLANT TEMP
SENDER
4W-9972
1
2
1
3
2
1
2
AIR CONDITIONER
CLUTCH SOL
3E-1906
GN
GN
STARTER
106-8558
200-BK
606-GY
614-PU
604-OR
301-BU-10
304-WH-10
FUEL SW
115-7103
B
201-BK
413-BR
441-OR
TURN LAMP
7X-6066
STOP/TAIL
LAMP
8C-6207
RD
BK
606-GY
200-BK
DISCONNECT SW
7N-0718
RD-0
RD-00
BK-00
ENGINE
200-BK-4
BK-00
BK-00
12V BATTERY
3T-5760 STD
9X-9721 ATCH
G S
MTR BAT
MOTOR
NEGPOS
NEG POS
RD
WH
BK
604-OR
614-PU
200-BK
608-GN
200-BK
REAR FLOOD
LAMP
9X-6775
T
S
B
B
B
B
597-PU
522-WH
795-YL
795-YL
597-PU
441-OR
413-BR
406-PU
405-GY
200-BK
326-PU
450-YL
202-BK
201-BK
201-BK
B
B
B
201-BK
B
B
B
B
B
522-WH
200-BK
310-PU
311-WH
Y
200-BK
105-BR
C
C
200-BK
727-GN
462-YL
326-PU
105-BR
522-WH
597-PU
795-YL
202-BK
450-YL
406-PU
441-OR
201-BK
200-BK
447-PK
608-GN
403-GN
306-GN
310-PU
308-YL
405-GY
200-BK
RD-18
BU-18
L60
L51
L69
L48
200-BK
L63
L63
L63
L63
L50
L50
L51
L62
L68
L68
L60
L52
L52
L49
L49
L49
L49 L49
L48
L48
L48
L48
200-BK
3E-9169 DIODE AS.
200-BK
200-BK-10
406-PU
201-BK
311-WH
L52
L60
L60
L58
L58
L57
L54
L55
L56
WW
AAA
CCC
DDD
RD-00
QQ
BBB
BBB
CCC
AAA
C
C
101-RD-4
200-BK-4 160-PU-4
200-BK
334-BU
160-PU
160-PU-4
160-PU
101-RD-4
200-BK-4
Y310-PU
C
REAR
FRAME
BUS BAR
124-5814
101-RD-4
DDD
RD-00
RD-00
BK-18
BK
BK
BK
BK
200-BK
795-YL
200-BK
DUAL HORSEPOWER
SOLENOID
111-0570
B
GN
GN
T
200-BK
513-OR
1
2
12V BATTERY
3T-5760 STD
9X-9721 ATCH
°
727-GN
200-BK 200-BK
COOLANT TEMP
SWITCH
8T-9793
200-BK
C
WW
QQ
LL
UU
UU
COOLANT SW
8C-3569
Y
200-BK
200-BK
BB
HHDD
YHH
D
D
SS
SSRR
QQ
RRTT
TT
°T
413-BR
311-WH
462-YL
B
B
START AID
ATTACHMENT
RD-0
2
4
6
7
9
5
8
1
3
2
1
4
1
6
5
2
3
7
8
6
3
1
4
6 4
9
5
8
2
3
1
7
6
5
4
3
2
1
4
9
3
6
5 5
2
5
3
4
1
7
7
6
5
4
3
2
5
4
3
2
1
7
5
6
4
3
2
2
1
1
1
6
8
2
1
462-YL
727-GN
200-BK
101-RD-4
112-PU-4
L46
L66
K
201-BK
105-BR
24 TO 12 VOLT
CONVERTER
119-1733
EE
EE
EE
EE
105-BR
A513-PK
102-BU
101-RD-4
105-BR
326-PU
308-YL
403-GN
200-BK
200-BK
10
107-WH
101-RD-14
113-OR
419-YL
608-YL
405-GY
403-GN
413-BR
447-PK
Z
C
403-GN
200-BK
728-BU
136-GN
308-YL
592-BU
200-BK
A513-PK
102-BU
+12V MEMORY
+24V IN
200-BK
113-OR
+ BATTERY
GROUND
GROUND (RADIO)
+12V RADIO
201-BK
441-OR
406-PU
450-YL
450-YL
406-PU
441-OR
201-BK
447-PK
413-BR
608-GN
405-GY
710-GN AND 202-BK
ARE TWISTED PAIR
B+ MEMORY
B+
GROUND
+ LH SPEAKER
- LH SPEAKER
+ RH SPEAKER
- RH SPEAKER
ANTENNA
BK-0
BK
WH
WH/BK
GY
GY/BK
L58
L58
L67
L67
L67
L57
L57
L56
L56
L56 L56
L55
L55
L55
L55
L55
L60
L54 L54
L54
L54
L63
L13
L13
L16
L16
L16
L44L44
7
6
L61
EEEE
G
710-GN
202-BK
L61
L38
L72
L72
200-BK
A429-YL
L37
900-PU
L45
522-WH
L45
597-PU
795-YL
306-GN
J
101-RD-4
112-PU-8
112-PU-10
J
J
J
10
107-WH
J
J
326-PU
310-PU
G460-GN
G865-BU
903-GY
902-BR
200-BK
A429-YL
122-BU-14
728-BU
755-OR
754-BU
136-GN
921-WH
752-YL
901-WH
12V RADIO
3E-7140
751-GN
403-GN
200-BK-10
176-OR-14
124-GN
176-OR-14
L65
L65
113-OR
108-BU
200-BK
L65
DOME LAMP
8C-9678
136-GN
126-PK
130-GN
134-YL
105-BR
L35
L45
A513-PK
592-BU
200-BK
508-PU
509-WH
511-BR
512-GN
113-OR
3
2
1
BK
RD
WH
L35
L35
L66
2
1
8
7
2
1
8
7
102-BU
200-BK
SPARE
SHUTDOWN CNTRL
1
101-RD
115-PK
112-PU-8
102-BU
101-RD
NOTE F
START AID
EMS TEST SW
9X-9628
2
5
1
160-PU
334-BU
L75
3
556-WH
L75
L75
101-RD-10
200-BK-10
308-YL
9
728-BU
200-BK
3
2
1
4
PRIMARY
STEER SW
8T-8640
6
105-BR
202-BK
SERVICE
METER
6T-7337
200-BK
BU
RD
BK
GY/BK
GY
WH/BK
WH
BK
RD
JJ
RD
ANTENNA
9W-3072
CABLE AS.
9X-3073
YLB+ MEMORY
B+
GROUND
+ LH SPEAKER
- LH SPEAKER
+ RH SPEAKER
- RH SPEAKER
ANTENNA
758-GN
103-YL
173-YL
403-GN
101-RD
+
R
202-BK
24V RADIO
9X-6779
130-GN
134-YL
114-GN
105-BR
TAIL LAMPS
TURN SIGNALS
STOP LAMPS
HORN
KEY SW
F769-BU
417-GY
1
2
L72
101-RD-10
LIGHTBAR
LOW BEAM
BREAKER
3T-2662
417-GY
HEADLAMP
BREAKER
3T-2662
15A
15A
202-BK
24V TO 12V CONVERTER
3E-8646
IGNITION
12V OUT
GROUND
24V IN
LOCALIZED
GROUND
STUD
10A
10A
10A
10A
10A
10A
10A
10A
10A
727-GN
727-GN
462-YL
J
J
403-GN
J
J
J
A
A
A
JJ
BBAA
FUSE BLOCK
9G-0747
107-WH
A
A
K
K
A
C
AC
AC
112-PU-4
G
F
GF
C
A
C
XX
A
727-GN
-
112-PU-10
101-RD-4
101-RD-10
15A
113-OR
(NOTE E)
25A CONVERTER
BREAKER
3T-2662
1
2
3
3
2
1
2
1
2
1
7
8
6
4
2
1
5
1
2
2
1
2
2
4
1
5
3
1
4
3
2
1
2
1
2
1
2
1
1
2
3
4
W
W
200-BK
10A
603-PK
200-BK
200-BK200-BK
BEACON
9X-9556
BULB
9X-7849
BEACON SW
9X-9639
601-GY
200-BK
OPEN ROPS BEACON ATCH
101-RD
BEACON FUSE
419-YL
201-BK
126-PK
PARK BRAKE
PRESS SW
3E-2033
PARK BRAKE
SOLENOID
7T-9074
GN
GN
BK-18
200-BK
BK-18
200-BK
200-BK
611-PU
619-GN
605-YL
606-GY
321-BR
L72
L72
SENDER
3E-5383
A429-YL
200-BK
404-YL
201-BK
8T-9705
HYD OIL
TEMP SW
°T
A507-YL
200-BK
RD
BK
200-BK
603-PK
200-BK
504-YL
119-PK
503-BR
505-BU
603-PK
A504-GN
A507-YL
BLOWER
9X-0343
604-OR
556-WH
122-BU-14
605-YL
606-GY
614-PU
321-BR
604-OR
504-YL
119-PK
503-BR
505-BU
GND
PARK
B+
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
°T
BK
DEFROSTER
9X-9657
MOTOR
556-WH
L67
L52
L52
L58
L57
L54
L55
L56
L51
L51 L51
L44
L63
L38
L7
L37
L37
L37
L37
L36
L36
L37
L36
L61
L61
L61
L41
L41
L41
L41
L41
L41
L41
L20
L20
122-BU-14
1
2
STRAP
4 GA STD
1/0 ATCH
RESISTOR
7T-4003
BEACON
9X-9556
BULB
9X-7849
AA
1
2
REAR WIPER
9X-3392
4
126-PK 126-PK
GGGG
5
200-BK
200-BK
4
3 1
200-BK-14
CONDENSER
RELAY
3T-2170
CONDENSER
MOTOR
7X-6279
CONDENSER
MOTOR
7X-6279
597-PU-14
521-YL-14
158-BR-14
200-BK-14
593-GN-14
200-BK-14
593-GN-14
597-PU-14
521-YL-14
MOTOR
MOTOR
GG
WH/RD-14
WH/RD-14
BK-14
BK-14
GG
CONDENSER GP-ROOFTOP 103-8519
MM
200-BK
200-BK
200-BK
200-BK
200-BK
W
W
W
601-GY
144-GN
3
2
H
FF
200-BK-14
597-PU
521-YL
122-BU-14
A
556-WH
W
W
H
H
VV
VV
A
AE
H
H
H
A
C
W
601-GY
522-WH
200-BK
521-YL
124-GN
X
BLOWER
9X-9363
515-GY
200-BK
124-GN
521-YL
515-GY
516-GN
517-BU
BLOWER SW
6P-3236
RESISTOR
9G-1950
3
5
1
4
2
BASE
7G-9730
PANEL LAMP
8D-1429
WH/RD-14
BK-14
MOTOR
FF
522-WH
3
4
5
2
1
200-BK
614-PU
HEATER GP 8C-9787
200-BK
614-PU
1
2
5
4
3
T°
MOTOR
WH/RD-14
BK-14
PANEL LAMP
8D-1429
BASE
7G-9730
THERMOSTAT
SW
9X-5445
RESISTOR
9G-1950
BLOWER SW
6P-3236
X
124-GN
521-YL
515-GY
516-GN
517-BU
CONDITIONER GP-B 8C9788
L42
515-GY
200-BK
BLOWER
9X-9363
3
5
1
4
2
X
X
U
WITH 103-8519 ROOFTOP CONDENSER GP., REMOVE
JUMPER KK AND MATE HARNESS FF TO
HARNESS A
KK
522-WH
9
8
7
6
2
1
6
5
5
4
2
3
4
3
2
1
1
1
2
2
C
A
B
6
5
3
2
1
4
1
L35
L65
L16
L13
A429-YL
L30
L35
L65
L12
L16
L13
165-YL
169-PK
202-BK
592-BU
605-YL
606-GY
310-PU
608-GN
614-PU
605-YL
605-YL
373-GN
334-BU
608-GN
609-YL
614-PU
169-PK
629-PK
415-GN
201-BK
606-GY
611-PU
619-GN
310-PU
202-BK
570-BU
417-GY
B751-BU
L
165-YL
165-YL
165-YL
165-YL
601-GY
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J J
J J
J
J
J
J
J
570-BU
417-GY
J
J
J
J
J
J
J
619-GN619-GN
200-BK
200-BK
614-PU
614-PU
614-PU
609-YL
601-GY
601-GY
200-BK 200-BK
200-BK
200-BK
601-GY
601-GY
L72
200-BK
L72
608-GN
200-BK
200-BK
165-YL
3
2
202-BK
7
601-GY
609-YL
200-BK
310-PU
L64
629-PK
608-GN
RESISTOR
3T-3123
2
5
1
202-BK
3
4
6
200-BK
601-GY
629-PK
614-PU
2
115-PK
L45
L37
L12
L12
L66
L66
L32 L32
L32
L35
L30
L30
L30
L28
L6
L29
L29
L27
L27
L27
L27
103-YL
1
L65
L11
L11
200-BK
3
601-GY
200-BK
601-GY
415-GN
308-YL
B899-OR
202-BK
165-YL
201-BK
J
310-PU
4
600-BR
334-BU
2
373-GN
116-BR
601-GY
31
200-BK
103-YL
6
4
3
1
5
2
HEADLAMP/
TAIL SW
3E-9317
609-YL
2
1
102-BU
165-YL
308-YL
322-GY
114-GN
605-YL
606-GY
614-PU
611-PU
619-GN
601-GY
403-GN
L75
334-BU
160-PU
L75
L75
605-YL
606-GY
L75
200-BK
556-WH
601-GY
556-WH
606-GY 201-BK
322-GY
TURN SIGNAL
SW
9G-5589
2
1
PANEL LAMP
DIMMER SW
3E-9318
122-BU-14
124-GN
308-YL
113-OR
601-GY
136-GN
600-BR
601-GY
601-GY
126-PK
614-PU
608-GN
L6
L6
165-YL
169-PK
116-BR
149-PU
10
308-YL
200-BK
L76
200-BK
200-BK
308-YL
AIR DRYER
NOTE G
AIR CNDTR
GAUGES
XSMN CNTRL
DIFF LOCK
200-BK
200-BK
BLADE CNTRL
REAR FLOODS
BLADE FLOODS
614-PU
619-GN
6
3
10A
FLASHER
108-0358
619-GN
537-GN
1 4
5
6
2
3
611-PU
HEADLAMP DIMMER SW
103-5678
149-PU
601-GY
FLOOD
LAMPS
9X-9632
200-BK
601-GY
FUSE BLOCK
9G-0747
5
2
4
5
15A
EMS TEST SW
106-2477
10A
10A
10A
10A
10A
10A
10A
404-YL
201-BK
HORN SW
8W-1957
200-BK
200-BK
200-BK
DIFFERENTIAL
UNLOCK SW
123-5862
LIGHT BAR
LOW BEAM
9X-9631
L76
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
308-YL
601-GY
200-BK
200-BK
J
J
J
2
3
TAIL
LAMP SW
3E9319
614-PU
601-GY
103-YL
B
200-BK
J
A
J
AJ
AJ
J
JNN
467-WH
409-OR
A429-YL
160-PU
404-YL
614-PU
410-WH
201-BK
201-BK
200-BK
439-YL
113-OR
200-BK
415-GN
L30
L28
L34
L6
L29
L27
L65
J
AA
103-YL
3K8782 FUSE (10A)
8M8948 FUSE (15A)
8M0456 FUSE (20A)
NOTE F
A
B
200-BK
614-PU
201-BK
441-OR
450-YL
403-GN
419-YL
405-GY
406-PU
413-BR
447-PK
201-BK
201-BK
417-GY
606-GY
605-YL
408-WH
201-BK
E975-PU
403-GN
449-BU
7
601-GY
201-BK
4
3
6
7
4
1
2
6
1
5
3
5
3
4
7
2
1
2
3
4
5
2
6
1
1
4
3
2
2
1
3
4
5
9
8
7
6
5
4
3
2
1
3
2
1
L71
L71
278-BK
278-BK
G
SHIFT CONSOLE
601-GY
601-GY
112-PU-10
101-RD-4
597-PU
522-WH
308-YL
326-PU
795-YL
306-GN
467-WH
409-OR
113-OR
113-OR
113-OR
439-YL
921-WH
903-GY
902-BR
901-WH
900-PU
755-OR
754-BU
752-YL
751-GN
126-PK
307-OR
321-BR
DIA CODE 2
202-BK
DIA CODE 1
306-GN
795-YL
449-BU
20 INCH PEDAL
202-BK
126-PK
892-BR
202-BK
G460-GN
277-BK
G
977-YL
893-GN
RED NEUT
202-BK
202-BK
J
202-BK
14
13
12
11
10
9
8
7
6
5
4
3
202-BK
2
1
15
16
17
18
19
20
21
22
23
24
TRANSMISSION DIRECTION
AND SPEED SW.
8C-5340
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
FIRST
GROUND
EIGHTH
SECOND
THIRD
FOURTH
FIFTH
SIXTH
SEVENTH
E943-BR
FORWARD
REVERSE
PARK
NEUTRAL
E937-PU
202-BK
E938-OR
E939-WH
E940-BU
E941-YL
E942-GN
E944-GY
E945-PU
E946-OR
E947-WH
E948-BU
E949-YL
202-BK
202-BK
H
E975-PU
G
TRANSMISSION CONTROL
106-4458 (MANUAL ONLY)
112-2956 (AUTOSHIFT)
G
F769-BU
202-BK
L40
L20
L44
L63
202-BK
L38
L7
L36
L7
L7
L34
L35
L35
L36
L36
L38
L38
L26
L26
L27
L27
L26
L27
L28
L28
L39L39
126-PK
L39
L40
L43
L43
L43
L43
L43
L44
L44
977-YL
G
STEERING CONSOLE
L63
L63
L23
L23
F
NEUTRAL
START
CONTROL
117-9364
G
202-BK
A
A
F769-BU
758-GN
307-OR
E948-BU
449-BU
E975-PU
E949-YL
C
E975-PU
SOL 1 OUTPUT
277-BK
G460-GN
E949-YL
439-YL
SW 2 INPUT
E948-BU
E947-WH
E946-OR
TMP SW/DC0
+BATTERY
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
19
113-OR
24
23
22
21
18
17
16
101-RD
15
14
13
12
11
10
8
5
3
2
1
25
7
E945-PU
467-WH
E944-GY
L44
L71
795-YL
E943-BR
321-BR
E942-GN
307-OR
E941-YL
202-BK
E940-BU
126-PK
E939-WH
449-BU
E938-OR
409-OR
G
202-BK
PARK
REVERSE
FORWARD
G
EIGHTH
SEVENTH
SIXTH
FIFTH
FOURTH
THIRD
SECOND
FIRST
RED NEUTR
CAT LINK +
(N) NEUT
+12V
A/M SWITCH
BUFF TOS
NEUTRAL
SERVICE
TOOL
CONNECTOR
9W-1951
200-BK
BAT +
200-BK
200-BK
200-BK
601-GY
601-GY
619-GN
611-PU
606-GY
605-YL
605-YL
606-GY
611-PU
619-GN
321-BR
604-OR
601-GY
CUSHION
BLADE SW
9X-9629
521-YL
SW 1 INPUT
308-YL
200-BK
326-PU
307-OR
601-GY
105-BR
169-PK
B
A
TOS + INP9
E937-PU
893-GN
892-BR
G865-BU
570-BU
E
L64
200-BK
101-RD
410-WH
201-BK
710-GN
D
727-GN
462-YL
202-BK
9G-9813
165-YL
522-WH
308-YL
326-PU
307-OR
B751-BU
105-BR
SOL 2 OUTPUT
134-YL
RD
BK
ST
ON
OFF
B
977-YL
4
202-BK
S
202-BK
C
G
R
U
CENTERSHIFT
PIN SW
9X-9634
TEST SW
9X-9633
U
202-BK
U
U
200-BK
U
U
U
U
U
113-OR
307-OR
U
U
U
U
U
200-BK
200-BK
200-BK
L34
124-GN
202-BK
601-GY
165-YL
B751-BU
601-GY
200-BK
570-BU
169-PK
601-GY
200-BK
U
U
601-GY
200-BK
PANEL LAMP
(SHIFT LEVER)
7N-5876
GROUND
200-BK
462-YL
3
1
2
A/M LAMP
410-WH
201-BK
SOLE RETN
2
SOLENOID 8
200-BK
SOLENOID 7
601-GY
SOLENOID 6
101-RD
MATE WITH BEACON
HARNESS "W"
U
2
3
200-BK
601-GY
134-YL
G460-GN
306-GN
306-GN
727-GN
3
601-GY
6
5
SOLENOID 5
SOLENOID 4
10
SOLENOID 3
AUTOSHIFT SW.
102-9861
SOLENOID 2
200-BK
SOLENOID 1
601-GY
EMS OUT
202-BK
977-YL
DUAL HP
200-BK
6
601-GY
2
3
B751-BU
KEY START SW
9G-7641
601-GY
101-RD-10
L34L35
L23
L36
L40
113-OR
L40
L40
L40
L40
L42
CAT LINK -
BU ALARM
START SW.
L42
2
122-BU-14
U
U
A
U
GROUND
A
U
A
308-YL
308-YL
200-BK
601-GY
373-GN
373-GN
308-YL
L71
200-BK
200-BK
601-GY
U
U
U
U
977-YL7
8
373-GN
7
6
5
1
4
3
1
4
8
7
1
3
2
9
6
2
9
5
3
7
2
10
4
6
8
10
1
2
5
2
5
7
9
3
4
6
8
1
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK-14
L64
200-BK
INSTRUMENT PANEL
200-BK
113-OR
A513-PK
200-BK
512-GN
511-BR
592-BU
200-BK-8
200-BK
113-OR
A513-PK
200-BK
L19
L16
L13
L11
K
L12
L32
L32
L32
L21 L21
L21L21
200-BK
L10
L19
L19
L21
L21
L62
L62
L62
L62
L16
L16
L15
L14
L14
L14L14
L13
L13
L11
L11
L11
L12
L10
L10
200-BK
200-BK
A506-OR
A503-PK
201-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
- +
-+- +
REAR
WASHER
7T-8891FRONT UPPER
WASHER
7T-8891
507-WH
506-PU
578-BU
FRONT LOWER
WASHER
7T-8891
507-WH
200-BK
FRONT
FRAME
200-BK-6
202-BK
108-BU
200-BK
A513-PK
592-BU
200-BK
511-BR
512-GN
509-WH
508-PU
200-BK
200-BK
4
CAB
GROUND
606-GY
605-YL
611-PU
619-GN
114-GN
322-GY
BLOWER
9X-0343
DEFROSTER
9X-9657
508-PU
509-WH
LEFT SPEAKER
6T-7695
A506-OR
200-BK
MOTOR
MOTOR
501-GN
118-GY
500-BR
502-OR
RESISTOR
7T-4003
RD
BK
629-PK
609-YL
200-BK
GND
PARK
B+
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
°T
BK
FRONT
FRAME
MOTOR
1
2
+
-
MOTOR
113-OR
FRONT UPPER
WIPER
9X-3392
200-BK
A506-OR
K
K
201-BK
450-YL
449-BU
160-PU
200-BK
LAMP
UNUSED
UNUSED
AA
AA
GROUND
NEUTRAL
BK AIR PRESS
HYD TEMP
BRAKE ON
UNUSED
AA
K
ALARM
K
K
+ BATTERY
PRIM STEER
SHIFT FAULT
UNUSED
UNUSED
FUEL PRESS
ALTERNATOR
TEST
ENG OIL PRESS
COOLANT TEMP
K
K
A ZZZZ
160-PU
11
18
14
2
9
8
7
19
17
10
12
4
13
6
5
A
15
3
467-WH
417-GY
410-WH
485-YL
419-YL
404-YL
408-WH
409-OR
M
16
200-BK
20
E975-PU
M
M
AIH LAMP
7N-5876
160-PU
411-PK
201-BK
200-BK
201-BK
200-BK
200-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
413-BR
200-BK-6
113-OR
113-OR
406-PU
405-GY
614-PU 614-PU
614-PU614-PU
614-PU 614-PU
614-PU
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
M
M
M
A
A
1
A
M
113-OR
LAMP
8M-6176
FUEL
LEVEL
COOLANT
TEMP
M
M
M
M
M
M
M
M
A429-YL
B426-BU
M
M
113-OR
441-OR
614-PU
447-PK
200-BK
LAMP
8D-1429
TACHOMETER
110-8468
GRD
SEND
IGN
GRD
SIG
IGN
M
403-GN
CLUSTER
124-0384
415-GN
WH
RD
OR
PU
GN
GY
PK
YL
BK
(12 V)
(24 V)
(12 V)
(24 V)
IGN
SEND
GRD
IGN
SEND
GRD
IGN
SEND
GRD
M
RIGHT TURN
INDICATOR
LAMP
7N-5876
NOTE B
606-GY
200-BK
113-OR
M
M
M
M
450-YL
ARTICULATION
113-OR
200-BK
614-PU
200-BK
200-BK
614-PU
SPEEDOMETER
110-2338
MASTER
ACTION
LAMP
9W-2111
NOTE B
411-PK
201-BK
450-YL
449-BU
606-GY
605-YL
614-PU
200-BK
417-GY
467-WH
409-OR
408-WH
404-YL
419-YL
201-BK
410-WH
200-BK
439-YL
201-BK
413-BR
406-PU
405-GY
415-GN
447-PK
441-OR
113-OR
403-GN
439-YL
200-BK
605-YL
200-BK
614-PU
200-BK
614-PU
200-BK
113-OR
449-BU
C'SHIFT PIN
INDICATOR
LAMP
7N-5876
NOTE B
LEFT TURN
INDICATOR
LAMP
7N-5876
NOTE B
R/S
SYSTEM
AIR
PRESS
1W-3306
LAMP
7N-5876
L/S
SYSTEM
AIR
PRESS
1W-3306
LAMP
7N-5876
MM
M
M
M
TRANS
LAMP
7N-5876
200-BK
M
M
E975-PU
403-GN
LAMP
8D-1429
200-BK
201-BK
9
8
5
6
7
6
4
2
1
3
5
4
3
2
1
7
4
8
7
2
3
6
1
6
3
5
7
4
5
2
1
2
1
9
5
3
4
6
8
7
10
L71 L71
L71
K
K
L
S
S
S
S
S
S
101-RD-14
L
L
L
L
L
L
L
L
L L
L
L
L
L
L
L
L
L
L
L
L
L
578-BU
L
L
L
L
L
L
L
L
L
L
577-PU
576-PK
575-YL
506-PU
505-BU
504-YL
119-PK
REAR
DEFROST SW
9X-9638
FRONT
DEFROST SW
9X-9638
152-BU
152-BU
152-BU
200-BK
119-PK
119-PK
H
L
B B
P
W
L
W
P
B
503-BR
B
L
W
H
P
B
507-WH
119-PK
119-PK
592-BU
118-GY
A513-PK
506-PU
578-BU
507-WH
575-YL
577-PU
576-PK
152-BU
101-RD
112-PU-10
601-GY
605-YL
606-GY
611-PU
619-GN
L
L
200-BK
601-GY
144-GN
603-PK
3
118-GY
118-GY
118-GY
200-BK
A
A
200-BK
200-BK
200-BK200-BK
200-BK
CAB SWITCH AND FUSE PANEL
584-YL
584-YL
4K-5122 HOLDER AS.
3K-8782 FUSE
601-GY
200-BK
L22
L19
L62
L5
L5
L20
L20
L23
L21
L18
L18
L18
L18
L18
L7
L7
L7
L7
L7
L7
L15
L15
L15
2
200-BK
200-BK
FRONT LOWER
WIPER SW
3T-6655
L22
118-GY
152-BU
119-PK
141-PK
151-GN
108-BU
144-GN
A503-PK
A506-OR
584-YL
2
151-GN
5
1
584-YL
200-BK
200-BK
601-GY
3
4
A504-GN
6
A507-YL
200-BK
604-OR
130-GN
200-BK-8
112-PU-10
113-OR
A513-PK
605-YL
606-GY
611-PU
619-GN
507-WH
578-BU
506-PU
152-BU
576-PK
577-PU
575-YL
101-RD
GND
605-YL
606-GY
611-PU
619-GN
PARK
B+
200-BK
141-PK
601-GY
101-RD
507-WH
578-BU
506-PU
118-GY
501-GN
500-BR
502-OR
200-BK
A507-YL
A504-GN
603-PK
119-PK
505-BU
503-BR
504-YL
FRONT UPPER
WIPER SW
3T-6655
BEACON SW
9X-9639
511-BR
512-GN
101-RD
152-BU
FRONT LOWER
WIPER
9X-3392
576-PK
152-BU
575-YL
577-PU
108-BU
A503-PK
A506-OR
152-BU
576-PK
575-YL
577-PU
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
°T
BK
113-OR
UPPER WIPER/WASHER
LOWER WIPER/WASHER
REAR WIPER/WASHER
FRONT DEFROSTER
REAR DEFROSTER
DOME LAMP
BEACON
10A
10A
10A
10A
10A
10A
10A
B
6
L
H
4
3
119-PK
200-BK
502-OR
601-GY
200-BK
1
5
+
-
112-PU
112-PU
112-PU
112-PU
592-BU
112-PU
101-RD
L
501-GN
500-BR
2
K
K
A
A
L
L
KK
A
K
K
LH
REAR
WIPER SW
3T-6655
2
1
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
619-GN
619-GN
611-PU
611-PU
P
P
200-BK
629-PK
Q
K
K
L6
L10
L10
L10
L10
L1
L1
L2
L2
200-BK
OPERATOR STATION
CIRCUIT GROUPING
DESIGNATION
200-BK
200-BK
609-YL 609-YL
609-YL
FORWARD
HORN
SOLENOID
7T-9074
L#
P
P
P
Q
T
T
K
K
K
CC
T
A
A
Q
P
A
A
A
611-PU
605-YL
200-BK
200-BK
619-GN
619-GN
611-PU
606-GY
200-BK
200-BK
629-PK
NOTECHG
ATCH WIRE, CABLE &
COMPONENT
CIRCUIT CONNECTED
LOC
HARNESS AS.
PART NO.IDENT
BLUE
GREEN
BU
GN
RD
WH
OR
YL
PK
BK
BLADE, SPADE, RING,
OR SCREW TERMINAL
CONNECTION TO SURFACE
OF COMPONENT
570-BU 570-BU
200-BK
1
2
LO BEAM
HEADLAMP
9X-7169
606-GY
605-YL
611-PU
619-GN
200-BK
629-PK
200-BK
1
2
629-PK
200-BK
CONNECTOR
GN
GN
1
2
GN
GN
SYMBOL DESCRIPTION
BROWN
PURPLE
GRAY
BLACK
COLORABBREV
PINK
200-BK
YELLOW
1
2
BLADE
CUSHION
SOLENOIDS
7T-6517
570-BU
200-BK
ORANGE
WHITE
RED
BR
PU
GY
609-YL
200-BK
BK
RD
2
1
1
2
114-GN
322-GY
1
2
3
4
5
570-BU
LEVEL
619-GN
200-BK
200-BK
611-PU
605-YL
200-BK
1
2
RD
BK
LO BEAM
HEADLAMP
9X-7169
HI BEAM
HEADLAMP
9X-7170
TURN
SIGNAL
7X-6066
CAB TURN
SIGNAL
7X-6066
CAB HI BEAM
HEADLAMP
9X-7164
CAB LO BEAM
HEADLAMP
9X-6874
200-BK
605-YL
611-PU
200-BK
619-GN
200-BK
BLADE
FLOOD
LAMP
9X-6775
1
2
3
4
1
2
2
1
200-BK
L71
200-BK
P
P
BRAKE AIR SW
3E-2033
BK-18
Q
BRAKE AIR SW
3E-2033
K
K
605-YL
619-GN
611-PU
BK-18
200-BK
201-BK
200-BK
439-YL
113-OR
A
3
NOTE J: FOR USE WITH AFTERCOOLED ENGINES
NOTE H: FOR USE WITH NON-AFTERCOOLED ENGINES
BK-18
2
L7
L7
L6
L6
488-WH
L5
L2
L2
L1L1
4
1
200-BK
200-BK
200-BK
200-BK
WH-18
BK-18
A
200-BK
200-BK
200-BK
Q
P
P
P
A
A
A
K
K
K
A
CCA
WH-18
NOTE D:
200-BK
605-YL
606-GY
611-PU
200-BK
200-BK
619-GN
611-PU
606-GY
619-GN
200-BK
629-PK
8T-9722
7V-8390
6D-4162
6D-4161
SHELL
SPRING
BUSHING
CONTACT
CENTERSHIFT
SOLENOID
8T-8808
1
2
B751-BU
200-BK
CABLE AS.
GN
GN
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
WIRE AS.
AID ATTACHMENT.
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
UNLESS OTHERWISE SPECIFIED: ALL WIRES IN A SPLICE
AND XMSN SHIFTER IN NEUTRAL
606-GY
200-BK
LO BEAM
HEADLAMP
9X-7169
629-PK
200-BK
6R
5R
4R
3R
2R
1R
8F
7F
6F
5F
4F
3F
2F
1F
N
PARK
STOP LAMP
SW
2M-9346
200-BK
WH-18
CENTERSHIFT
INDICATOR SW
3E-9367
130-GN
604-OR
408-WH
488-WH
408-WH
201-BK
TRANSMISSION SHIFT LEVER LOGIC TABLE:
RD
BK
1
2
NOTE B:
TO
GND
RIGHT SPEAKER
6T-7695
NOTE C:
24V OUTPUTS
NEU
SOL
RET8
W/
AWD76
SOLENOIDS D
HPGEAR 5
B
U43
S
T2
609-YL
200-BK
OPERATOR STATION
1
WH-18
1
2
619-GN
200-BK
611-PU
200-BK
LO BEAM
HEADLAMP
9X-7169
HI BEAM
HEADLAMP
9X-7170
TURN
SIGNAL
7X-6066
CAB TURN
SIGNAL
7X-6066
CAB HI BEAM
HEADLAMP
9X-7164
CAB LO BEAM
HEADLAMP
9X-6874
606-GY
200-BK
611-PU
200-BK
RD
BK
200-BK
619-GN
1
2
BLADE
FLOOD
LAMP
9X-6775
NOTE G: USE 20 A FUSE WHEN ATTACHMENT AIR CONDITIONER
(HEATS AND COOLS) WITH ROOF TOP CONDENSER
IS PRESENT
NA MOTOR GRADER (146-4283)
THIS IS THE SCHEMATIC FOR THE 120H AND 135H
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAUGE
ARE THE SAME IDENT. NUMBER, COLOR, AND 16 GAUGE
GAUGE
GAUGEGAUGE
CIRCUIT NOT CONNECTED
INTERNAL ELECTRICAL
ELECTRICAL CONNECTION
TO MACHINE STRUCTURE
BATTERIES 9X-9721 MUST BE USED WITH
NOTE F: USE 9X-9628 SWITCH WITH START
NOTE E: POWER LEADS FOR 2-WAY FM COMMUNICATION
RADIO SHOULD BE SIZE 10 AWG
SECONDARY
SECONDARY
SECONDARY
V
W
X
X
Y
AA
BB
CC
DD
EE
FF
GG
HH
L
M
N
P
Q
S
T
U
A
B
C
D
E
F
G
H
J
K
KK
EEEE
LL
QQ
RR
SS
TT
TT
UU
VV
VV
WW
XX
YY
ZZ
DDD
MM
NN
Z
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
271
184
150
154
230
141
142
106
205
208
151
152
206
180
160
270
100
101
183
104
171
120
220
200
203
201
202
170
182
140
181
155
231
221
210
211
212
213
213
214
204
204
261
262
263
105
218
153
143
260
(TRANS SPEED SENDER)
(BEACON-OPEN ROPS)
(CONDITIONER GP-B)
(HEATER GP)
(FUEL TANK)
(HEADLAMP BREAKER)
(LOW BEAM BREAKER-BAR)
(BLADE FLOOD LAMP)
(REAR FLOOD LAMP)
(2-WAY RADIO CONVERTER)
(CONDENSER GP-CAB)
(CONDENSER GP-ROOFTOP)
(REAR FLOOD LMP-FUEL TNK)
(SW PANEL)
(GAUGE CONSOLE)
(TRANSMISSION)
(HEADLIGHTS-BAR)
(LOW BEAMS)
(CAB FUSE PANEL)
(BLADE CUSHION)
(XSMN CONSOLE-SWITCHES
(PLATFORM)
(ENGINE)
(R FRAME-ENGINE)
(RADIATOR GRILL)
(R FRAME)
(R FRAME-TRANS)
(XSMN CONSOLE)
(CAB-REAR)
(STEERING CONSOLE)
(CAB-FRONT)
(CONDENSER JUMPER)
(TOS)
(START MTR TO ENGINE)
(POS BAT TO START MTR)
(NEG BAT/DISCONNECT SW)
(DISCONNECT SW TO GND)
(NEG BAT TO POS BAT)
(NEG BAT TO POS BAT)
(START MTR TO FRAME GND)
(GND-R FRAME TO F FRAME)
(GND-R FRAME TO F FRAME)
(START MTR/STR RELAY)
(STEERING MTR TO GND)
(STR RELAY TO STR MTR)
(GND-F FRAME TO CAB)
(START MTR TO BUS BAR)
(CONDENSER FAN JUMPER)
(HORN SWITCH)
(SECONDARY STEERING)
02
01
00
00
05
01
01
02
01
02
03
01
03
03
01
02
02
02
03
02
00
02
03
00
02
01
01
00
02
02
04
00
00
01
00
01
01
00
00
03
00
01
00
01
00
02
00
00
00
01
104-8588
101-8200
124-1429
124-1429
101-8172
101-8197
101-8196
101-8190
101-8192
112-0829
8X-9091
9X-4189
101-8193
101-8164
123-0962
137-1120
101-8205
101-8194
101-8181
101-8188
123-6633
122-8882
104-6084
126-2793
101-8171
101-8169
137-1718
137-1721
101-8161
123-0957
101-8162
4E-8715
136-3153
8Y-9603
111-0871
5T-1553
110-6399
115-6908
115-8547
061-7661
7G-1060
8X-9618
115-5322
101-8204
115-5321
1S-2342
124-2802
6T-6962
8W-1917
101-8185
SECONDARY STEERING CONTROL
SEC STEER
SEC STEER
SEC STER
ARTICULATION
ELECTRONIC MONITORING SYSTEM
(EMS) 9X-7801
ACTION ALARM
CONN 1
CONN 2
CONN 3
CONN 7
CONN 8
CONN 9
CONN 16
CONN 66
CONN 15
CONN 14
CONN 13
CONN 19
CONN 18
CONN 17
CONN 12
CONN 11
CONN 10
CONN 5
CONN 1 4
CONN 6a
Y
Y
CONN 6b
CONNECT CONN 6a TO
CONN 6b WHEN USING
STARTING/CHARGING
ANALYZER WITHOUT
CONN 26b
CONN 26a
CONN 26c
WITH 8C-9788 COND. GP.,
CONN 26a MATES TO CONN 26b
WITH 8C-9787 HEATER GP.,
CONN 26a MATES TO CONN 26c
CONN 26b
CONN 28a
CONN 30
CONN 29a
BK
BK
CONN 29b
CONN 36
CONN 37
CONN 31
CONN 33
CONN 34
CONN 35
CONN 32
CONN 20
CONN 21
CONN 22
CONN 23
CONN 24
CONN 25
CONN 27
CONN 38
556-WH
CONN 39
CONN 49a
CONN 49b
WITH SECONDARY STEERING
SWITCH CONN'S 49a AND 49b
CONN 42
CONN 43
CONN 44
CONN 45
CONN 55
CONN 56
A429-YL
CONN 57
CONN 58
CONN 41
CONN 46
CONN 47
CONN 48
CONN 54
CONN 52
CONN 51
10 101-RD-14
CONN 53
CONN 59
CONN 60
CONN 40
CONN 50
CONN 61
CONN 62
CONN 63
CONN 64
CONN 65
200-BK
200-BK
L22
15 14 13 12 11 10 9 8 7
6
5 4
3 2
1
15 14 13 12 11 10 9 8 7
6
5 4
3 2
1
F
E
D
C
B
A
F
E
D
C
B
A
E25307
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
GAUGE CIRCUIT.
ELECTRONIC MONITOR SYSTEM
CIRCUIT. (EMS)
PANEL LAMP CIRCUIT.
WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
START AID CIRCUIT.
TURN SIGNAL CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.