This document provides a summary of the electrical system for a 120H and 135H motor grader, including: - A schematic showing the location of electrical components and connectors. - Tables listing electrical components with their schematic and machine locations. - Diagnostic codes and their descriptions to help troubleshoot issues. - Specifications for electrical components like senders, resistors, solenoids, and switches. - Charts identifying wire colors and their associated functions in the electrical system.

1. INTERACTIVE SCHEMATIC
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Click on any text that is BLUE and underlined.
These are hyperlinks that can be used to navi-
gate the schematic and machine views.
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located in the top right corner of every machine view page.
VIEW ALL CALLOUTS
Cover Page
Information
Schematic
Machine Views
Component Table
Tap Table
Fluid Power Symbols
Electrical Symbols
Front Frame
Rear Frame
Tap Views
Features
Options
Bookmarks X
EC-C3
EC-C2 E-C60
EC-C1
E-C61
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2. Electrical System
1998 Caterpillar, All Rights Reserved Printed in U.S.A.©
RENR1426-01
June 1998
120H and 135H Motor Grader
Standard Version
5FM800-UP
6TM366-UP
120H: 135H:
7MM249-UP
8WN350-UP

3. COMPONENT LOCATION
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Action B-9 C Sender - Transmission Speed D-15 14
Alarm - Backup F-15 1 Sensor - Transmission Oil Temp E-15 26
Alternator (35A STD) D-14 2 Solenoid - Centershift B-3 16
Batteries C-14 3,4 Solenoid - Differential Unlock E-14 17
Breaker - Alternator (35A) D-13 5 Solenoid - Dual Horsepower A-13 5
Breaker - Headlamp (15A) D-10 B Solenoid - Engine Shutdown D-13 5
Control - Neutral Start B-9 10 Solenoid - Forward Horn A-3 16
Control - Transmission A-7 E Solenoid - Park Brake B-12 16
Fuses B-6 C Solenoid - Start Aid A-13 18
Fuses D-9 B Solenoids - Transmission Valve (8) D-15,E-15 14
Gauge Cluster F-5 A Switch - Beacon B-6 C
Ground-Engine C-13 12 Switch - Blower (Heater) A-10 C
Ground - Front Frame D-6 21 Switchs - Brake Air Pressure A-2 16
Ground - Rear Frame C-13 28 Switch - Centershift Indicator B-3 19
Ground Strap - Cab to Front Frame D-6 24 Switch - Centershift Pin B-9 C
Ground Strap - Front Frame to Rear Frame C-12 20 Switch - Defroster (Front) A-6 C
Horn - Forward F-3 16 Switch - Defroster (Rear) B-6 C
Meter - Service E-10 B Switch - Differential Unlock D-8 B
Motor - Blower (Heater group) A-10 E Switch - Disconnect C-14 13
Motor - Blower/Defroster A-11 E Switch - Engine Coolant Temp (Start Aid) A-14 11
Motor - Blower/Defroster E-4 E Switch - Flood Lamp D-8 B
Motor - Starter C-13 5 Switch - Forward Horn E-9 B
Motor - Washer (Front Lower) F-6 8 Switch - Fuel Pressure B-13 13
Motor - Washer (Front Upper) F-6 8 Switch - Head/Tail Lamp E-8 B
Motor - Washer (Rear) F-6 8 Switch - Headlamp Dimmer E-9 B
Motor - Wiper (Front Lower) C-4 9 Switch - Inching Pedal Pressure C-15 14
Motor - Wiper (Front Upper) D-4 D Switch - Key Start B-9 C
Motor - Wiper (Rear) B-11 D Switch - Park Brake Pressure B-11 16
Relay - Start D-13 5 Switch - Start Aid E-8 B
Relay - Transmission Action Lamp C-10 8 Switch - Stoplamp Pressure A-2 16
Resistor - Blower Speed A-12 E Switch - Tail Lamp D-8 B
Resistor - Blower Speed E-4 E Switch - Transmission Direction & Speed A-9 C
Resistor - Blower Speed (Heater) A-10 E Switch - Wiper (Front Lower) A-5 C
Sender - Articulation C-12 7 Switch - Wiper (Front Upper) B-5 C
Sender - Engine Coolant Temp A-14 11 Switch - Wiper (Rear) A-5 C
Sender - Engine Oil Pressure B-14 13
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).

4. CONNECTOR LOCATION
Connector Number
Schematic
Location
Machine
Location
CONN 1 D-15 26
CONN 2 E-15 26
CONN 3 E-15 26
CONN 4 F-14 6
CONN 5 A-14 5
CONN 6 B-13 29
CONN 7 B-13 29
CONN 8 D-13 30
CONN 9 D-13 29
CONN 10 B-12 25
CONN 11 A-11 C
CONN 12 D-10 B
CONN 13 D-10 23
CONN 14 D-10 23
CONN 15 A-9 10
CONN 16 A-9 10
CONN 17 Service Tool A-9 C
CONN 18 B-9 25
CONN 19 E-9 B
CONN 21 B-8 10
CONN 22 B-8 10
CONN 23 E-6 24
CONN 24 E-6 24
CONN 25 C-6 24
CONN 26 C-6 27
CONN 27 C-6 27
CONN 28 A-6 27
CONN 29 C-5 27
CONN 30 C-5 27
CONN 31 B-3 15
CONN 32 E-3 23
CONN 33 F-3 23
CONN 34 F-3 23
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.

5. CID / MID / FMI
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
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
76 177 F03
Transmission oil temperature signal Open/Short
to +battery
77 762 F04
Transmission oil temperture switch short
to ground
81 868 F05 Auto/Manual lamp open
82 868 F06 Auto/Manual lamp short to ground
83 868 F03 Auto/Manual lamp short to +battery
Transmission Diagnostic Code Conversion

6. SPECIFICATIONS AND RELATED MANUALS
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-5383 Sender - Articulation Position Range - 3 to 97 Ohms
7N-8532 Sender - Engine Coolant Temp
560 to 716 @ 54°C (1 30°F)
72 tO 82 @ 110°C(230°F)
7T-4003 Resistors - Defroster Blower 10.0 ± 0.5
7T-9073 Solenoid - Differential Unlock 33.6 ± 1.0
7T-9074
Solenoids - 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-1 950 Resistor - Blower Speed Overall 2.00 ± .10 Tap 1.00 ± .05
9G-4365 Solenoid - Start Aid 6
104-6387 Sender - Transmission Speed 1000 to 1200
111-0570 Solenoid - Dual Horsepower 31.1 ± 2.4
116-9937 Sender - Engine Oil Pressure
21.5-49.5 @552 kPa (80.1 psi)
227 - 257 @ 21 kPa (3.0 psi)
127-0574 Solenoids - Transmission 31 ± 3
¹ At room temperature unless otherwise noted.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
2W-9346 Stop Lamp Pressure
45 kPa MAX
(6.5 psi MAX)
5 kPa MIN
(0.5 psi MIN)
Normally Open
8C-3569 Coolant Temperature (Start Aid)
38 ± 3°C
(100.4° ± 5.4°F)
27 °C MIN
(80.6°F MIN)
Normally Closed
111-7088 Inching Pedal Pressure
75.0 kPa MAX
(10.9 psi MAX)
50.0 kPa MIN
(7.3 psi MIN)
Normally Open
112-2024
Brake Air Park
Brake Pressure
640 kPa MAX
(92.0 psi MAX)
530 ± 40 kPa
(77.0 ± 6.0 psi)
Normally Open
115-7103 Fuel Pressure (EMS)
93 ± 21 kPa
(13.5 ± 3.0 psi)
69 ± 21 kPa
(10.0 ± 3.0 psi)
Normally Closed
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): ATT SENR2082
Transmission Electronic Shift Control SENR91 67
Starting Motor: (106-8558)
Consist No. 106-8557
Consist No. 106-8559
SENR3559
5ENR3581
Title

7. WIRE DESCRIPTION
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits Accessory Circuits (Continued)
101 RD Bat(+) 504 YL Wiper - Rear (Low)
102 BU HdLmp 505 BU Wiper - Rear (Hi)
103 RD Tail Lamps 506 PU Washer - Front
105 RD Key Start Sw 507 WH Washer - Rear
108 BU Dome Lamp 515 GY Blower Motor (Hi)
109 OR Alt Output (+) Term. 516 GN Blower Motor (Medium)
113 RD Opr Mon Panel 517 BU Blower Motor (Low)
114 RD Warning Horn (Forward) 521 YL A/C SW To Refrigerant SW
116 RD Rear Floods 522 WH A/C Clutch To Thermostat SW
118 GY Upper Wiper/Washer 556 WH Differential Lock
119 PK Rear Wiper/Washer 575 YL Wiper - Aux (Park)
124 RD A/C 576 PK Wiper - Aux (Low)
126 PK XMSN CTRL 577 PU Wiper - Aux (Hi)
129 BU Cigar Lighter 578 BU Washer - Aux
130 RD Stop Lamps 584 YL Wiper SW Jumper
135 BU 12V Power Port A503 PK Front Defroster Fan (Low)
141 PK Front Defroster A504 GN Rear Defroster Fan (Low)
144 GN Beacon A506 OR Front Defroster Fan (Hi)
149 RD Blade Floods A507 YL Rear Defroster Fan (Hi)
151 GN Rear Defroster Lighting Circuits
152 BU Lower Wiper/Washer 603 PK Rotary Beacon
165 RD Diff. Lock 604 OR Stop Lamp
Ground Circuits 608 GN Flood Lamp - Rear
201 BK Main Chassis 609 YL Flood Lamp - Side
202 BK XMSN CTRL 611 PU Head Lamp Hi
276 BK XMSN CTRL Ident Code 0 614 PU Park/Tail/Dash/Lamp
277 BK XMSN CTRL Ident Code 1 619 GN Head Lamp LowControl Circuits
278 BK XMSN CTRL Ident Code 2 Control Circuits
Basic Machine Circuits 710 GN XMSN Speed Pickup Signal
301 BU Starter No. 1 Sol 751 GN XMSN Shift Sol No. 1 Or 3
304 WH Starter Relay No. 1 Output 752 YL XMSN Shift Sol No. 2
306 GN Starter Relay Coil To Neut Start SW Or Key Start SW 754 BU XMSN Shift Sol No. 3 Or 1
307 OR Key Start SW To Neutral Start SW 755 OR XMSN Shift Sol No. 4 Or 5
308 YL Main Power Relay Coil 795 YL Dual Hp Sol
310 PU Start Aid SW To Start Aid Sol F775 BU Centershift Solenoid
311 WH Start Aid Sol To Temp SW 892 BR Start Mod Right (-) Port/CAT Data Link (-)
321 BR Backup Alarm Lamp Travel Alarm 893 GN Start Mod Right (+) Port/CAT Data Link (+)
322 GY Warning Horn (Forward) F843 YL Inching Pedal
326 PU Key Start SW C Term. 900 PU XMSN Shift Sol No. 5 or 4
Monitoring Circuits 901 WH XMSN Shift Sol No. 6
403 GN Alternator (R) Term. 902 BR XMSN Shift Sol No. 7
439 YL Lamp Indicator 903 GY XMSN Shift Sol No. 8
441 OR Eng Coolant Temp Gauge 921 WH XMSN Sol No 1 Or 3 Return
460 WH Opr Mon Panel Program Pin E937 PU MG MESH CNTL - Redundant Neutral
498 WH Diff. Lock Indicator E938 OR MG MESH CNTL - First Gear
A429 YL Articulation Indicator E939 WH MG MESH CNTL - Second Gear
A476 PU Eng Oil Press Gauge To Sender - Eng #1 E940 BU MG MESH CNTL - Third Gear
B476 BU (NFND) Transmission Indicator Lamp E941 YL MG MESH CNTL - Fourth Gear
C491 PU Park Brake Pressure E942 GN MG MESH CNTL - Filth Gear
E458 YL Low Air Pressure Lamp E943 BR MG MESH CNTL - Sixth Gear
E459 WH Low Air Pressure Alarm E944 GY MG MESH CNTL - Seventh Gear
E460 BR Trans Cntl To Relay Coil E945 PU MG MESH CNTL - Eighth Gear
F473 YL Transmission Warning E946 OR MG MESH CNTL - Forward Direct
G460 GN Transmission Temperature E947 WH MG MESH CNTL - Reverse Direct
Accessory Circuits E948 BU MG MESH CNTL - Park
500 BR Wiper - Front (Park) E949 YL MG MESH CNTL - Neutral
501 GN Wiper - Front (Low) E975 PU MESH Lamp
502 OR Wiper - Front (Hi) M917 PK TOS Sensor +
503 BR Wiper - Rear (Park) M91 8 PK TOS Sensor
M998 OR Xmsn Autoshift Mode

8. HARNESS and WIRE
Electrical Schematic Symbols
1
2
AG-C4
111-7898
L-C12
3E-5179
9X-1123
Component
Part Number
Pin or Socket Number
Part Number: for
Connector Receptacle
Part Number: for
Connector Plug
Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...)
Plug
325-AG135 PK-14
Wire Color
Wire Gauge
Receptacle
Pressure
Symbol
T
Temperature
Symbol
Level
Symbol
Flow
Symbol
Circuit Breaker
Symbol
Harness and Wire Symbols
1
1
2
2
Sure-Seal connector: Typical representation
of a Sure-Seal connector. The plug and receptacle
contain both pins and sockets.
Deutsch connector: Typical representation
of a Deutsch connector. The plug contains all
sockets and the receptacle contains all pins.
Symbols
Symbols and Definitions
Fuse (5 Amps)
5A
T
Fuse: A component in an electrical circuit that will open the circuit if too much current flows through it.
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.
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.
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.
Solenoid: A solenoid is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current
flows through it. The electromagnet can open or close a valve or move a piece of metal that can do work.
Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is activated by electricity and held 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.
Harness identification code:
This example indicates wire group 325,
wire 135 in harness "AG".
L-C12
3E-5179
Wire, Cable, or Harness Assembly Identification:
Includes Harness Identification Letters and Harness
Connector Serialization Codes (see sample).
Harness Connector Serialization Code: The "C" stands for
"Connector" and the number indicates which connector in the
harness (C1, C2, C3, ...).

9. 8
7
6
9
5
4
3
2
10
1
C
B
A
C
B
A
2
3
4
1
(14) TRANS SPD SENDER
104-6387
M917-PK
M918-GN
1
903-GY
1
2
902-BR
901-WH
921-WH
2
3
900-PU
755-OR
754-BU
752-YL
921-WH
751-GN
921-WH
903-GY
4
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
(14) SOL 4
(14) SOL 8
(14) SOL 7
5
(14) SOL 3
1
2
2
1
6
7
1
2
2
1
(14) SOL 2
(14) SOL 6
(14) SOL 5
(14) SOL 1
1
2
2
1
6
5
4
3
2
1
1
2
3
4
127-0574
5
6
7
8
9
10
3
4
2
1
4
3
2
1
1
2
200-BK
608-GN 608-GN
G
S
T
109-OR-10
604-OR
614-PU
321-BR
326-PU
200-BK-10
301-BU-10
306-GN
304-WH-10
101-RD-4
200-BK-4
200-BK
(5) ALTERNATOR
BREAKER
2H-1507 STD
9S-0174 ATCH
200-BK
403-GN
109-OR-4
604-OR
614-PU
200-BK
GND
START
STOP
200-BK
200-BK
135-BU
165-RD
165-RD
604-OR
614-PU
200-BK
RD
WH
BK
REAR FLOOD
LAMP
9X-6775
(2) ALTERNATOR
6N-9294 35A STD
100-5047 50A ATCH
(5) START
RELAY
3E-7279
40A
109-OR-4
ALT
+R
1
3
2
STOP/TAIL
LAMP
8C-6207
200-BK
200-BK
200-BK
B
B
B
B
Y Y
Y A
L69 L69
L69
L46
L51 L51
L51
L50
(5) SHUTDOWN
SOL
8C-3663Y Y
200-BK
556-WH
(17) DIFFERENTIAL
UNLOCK SOLENOID
7T-9073
165-RD
165-RD
GN
GN1
2
556-WH
105-8827 DIODE AS.
101-RD-4
Y
Y
Y Y
Y
200-BK
1
2
E
HHDD
2
ECCC
CCC
202-BK
60A
2
1
2
3
4
1
5
5
4
3
1
1
2
2
1
3
2
1
2
6
1
2
1
L69 200-BK
608-GN
101-RD-4
200-BK
T
608-GN
RD-00
RD-00
921-WH
795-YL
BK-00
(28) REAR
FRAME GND
311-WH
310-PU
1
2
BK-18
BK-18
(18) START AID
SOLENOID
9G-4365
G
(11) COOLANT TEMP
SENDER
7N-8532
1
3
2
(5) STARTER
106-8558
200-BK
614-PU
604-OR
301-BU-10
304-WH-10
441-OR
STOP/TAIL
LAMP
8C-6207
(13) DISCONNECT SW
7N-0718
RD-00
BK-00
(12) ENGINE GND
BK-00
BK-00
(4) 12V BATTERY
3T-5760
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
B
B
B
200-BK
Y
Y
A
A
E459-WH
A476-PU
441-OR
311-WH
202-BK
608-GN
403-GN
311-WH
310-PU
E458-YL
L50 L50
L51
200-BK-10
L54
L55
L56
REAR
FRAME
(3) 12V BATTERY
3T-5760
(5) DUAL HORSEPOWER
SOLENOID
111-0570
B
A
(13) FUEL SW
115-7103
B
E459-WH
E458-YL
RD-18
QQ
BU-18
LL
UU
UU
BK-18
BK
BK 200-BK
(11) COOLANT SW
8C-3569
T
311-WH
B
L53
Y
7
HHJJJ
795-YL
YHH
CCC
SS
SSRR
QQ
RRTT
TT
200-BK
200-BK-4
326-PU
306-GN
BK
B
310-PU
311-WH
A476-PU(13) ENGINE OIL
PRESSURE
SENDER
116-9937
6
BK
2
4
6
7
9
5
8
1
3
2
1
10
101-RD-4
200-BK200-BK
C491-PU
608-GN
A476-PU
E458-YL
124-RD
113-RD
105-RD
200-BK
310-PU
441-OR
441-OR
E458-YL
608-GN
A476-PU
L67L67
L67
L56 L56
L56 L56
L55 L55
L55
L55
L54
L54
L54 L54
L63
L16
L16
L38
200-BK
A429-YL
795-YL
306-GN
1
326-PU
310-PU
200-BK
A429-YL
24 TO 12 VOLT
CONVERTER
119-1733
PP
200-BK
102-BU
101-RD
12V POWER
PORT
117-2311
403-GN
L65
108-BU
200-BK
L65
DOME LAMP
8C-9678
3
2
1
BK
RD
WH
(B) SERVICE
METER
3E-9359
200-BK101-RD + -
JJ
556-WH
101-RD-10
(B) HEADLAMP
BREAKER
3T-2662
15A
135-BU
FUSE BLOCK
9G-0747
200-BK
135-BU
403-GN
200-BK
L23
L22
6
3
5
4
+12V MEMORY
J
J
A
A
J
AA
A429-YL
K
E459-WH
+24V IN 1
2
+ BATTERY
GROUND
403-GN
609-YL
608-GN
165-RD
130-RD
3K8782 (B) FUSE (10A)
8M8948 (B) FUSE (15A)
J
101-RD
SIG
L53
101-RD-4
101-RD-10
403-GN
GROUND (RADIO)
101-RD-10
1
2
3
2
1
+12V RADIO
2
1
4
5
1
2
2
4
1
5
3
2
1
2
1
3
8
5
6
4
7
C491-PU
200-BK
308-YL
(16) PARK BRAKE
PRESS SW
112-2404
(16) PARK BRAKE
SOLENOID
7T-9074
GN
GN
BK-18
200-BK
BK-18
200-BK
200-BK
321-BR
(7) ART
SENDER
3E-5383
A429-YL
200-BK
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
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
(E) DEFROSTER
9X-9657
MOTOR
L67
L54
L55
L56
L51
L63
L38
L7
L36
L36
L36
L41
L41L41
L41
200-BK
L20
L20
A
1
2
(E) RESISTOR
7T-4003
BEACON
9X-9556
BULB
9X-7849
1
2
(D) REAR WIPER MOTOR
9X-3392
4
200-BK
200-BK
200-BK
200-BK
556-WH
200-BK
200-BK
H
L29
L29
522-WH
B476-BU
308-YL
H
H
VVVV
A
AE
H
H
H
A
A
614-PU
200-BK
614-PU
200-BK
124-RD X
(E) BLOWER
9X-9363
515-GY
200-BK
124-RD
521-YL
515-GY
516-GN
517-BU
(C) BLOWER SW
6P-3236
(E) RESISTOR
9G-1950
BASE
7G-9730
PANEL LAMP
8D-1429
WH/RD-14
BK-14 MOTOR
PK
GY
BU
WH
RD
BK
BR
PU
(8) TRANSMISSION ACTION
LAMP RELAY
106-9188
308-YL
308-YL
B476-BU
A
3
4
5
2
1
200-BK
614-PU
HEATER GP 8C-9787
X
L42
E460-BR
U
614-PU
FRONT FRAME
(20) GROUND STRAP
7
6
5
4
3
2
1
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
JJ
J
J
J
J
J
J
J
J
J
619-GN
200-BK
200-BK
609-YL
614-PU
614-PU
200-BK
200-BK
614-PU
614-PU
200-BK
200-BK
200-BK
165-RD
32
L65
L16
L65
L12
L16
609-YL
614-PU
2
5
1
3
4
6
200-BK
614-PU
308-YL
614-PU
310-PU
135-BU
A429-YL
116-RD
614-PU
200-BK
103-RD 6
4
3
609-YL
1
5
2
614-PU(B) HEAD/
TAIL LAMP
SWITCH
3E-9317
439-YL
200-BK
609-YL
2
1
614-PU
102-BU
556-WH
308-YL
322-GY
114-RD
611-PU
619-GN
614-PU
2
3
200-BK
614-PU
556-WH
L12
L12
L65
L65
L65
322-GY
2
1
130-RD
105-RD
124-RD
113-RD
165-RD 608-GN
116-RD
114-RD
149-RD
103-RD
STOP LAMPS
HEATER
DIFF LOCK
HORN
REAR FLOODS
556-WH
BLADE FLOODS
614-PU
619-GN
10A
619-GN
441-OR
C491-PU
A476-PU
308-YL
611-PU
(B) HEADLAMP DIMMER SW
103-5678
149-RD
614-PU
(B) FLOOD
LAMP SW
9X-9632
NOTE G
200-BK
614-PU
10A
123-6375
15A
10A
10A
10A
10A
10A
10A
(B) HORN SW
116-2145
200-BK
200-BK
200-BK
(B) DIFFERENTIAL
UNLOCK SW
123-5862
E975-PU
614-PU
614-PU
614-PU
614-PU
200-BK 200-BK
J
J
J
2
3
(B) TAIL
LAMP SW
3E9319
200-BK
614-PU
614-PU
103-RD
L25
L25
L24
L22
L24L23
L6
L3
J
A
E458-YL
E458-YL
JNN
E458-YL
308-YL
J
103-RD
BLADE
FLOOD
LAMP SW
123-5849
NOTE F3
2
B
200-BK
B476-BU
614-PU
614-PU
614-PU
TAIL LAMPS
7
6
5
4
3
2
1
7
L71
L71
SHIFT CONSOLE
200-BK
101-RD-4
321-BR
604-OR
614-PU
E459-WH
326-PU
795-YL
306-GN
E460-BR
135-BU
200-BK
439-YL
308-YL
M998-OR
326-PU
307-OR
105-RD
308-YL
307-OR
321-BR
202-BK
9G-9813
308-YL
326-PU
307-OR
F775-BU
105-RD
165-RD
RD
BK
ST
ON
OFF
B
306-GN
795-YL
S
C
R
(C) CENTERSHIFT
PIN SW
9X-9634
200-BK
U
U
U
U
U
U
U
614-PU
165-RD
614-PU
U U
F
G460-GN
308-YL
(14) INCHING PEDAL
PRESSURE SW
(TRANSMISSION)
111-7088
BK
BK
F
202-BK
F843-YL
F843-YL
NNN NNN
202-BK
126-PK
G460-GN
614-PU
200-BK
2
1
L46
L46
L46
308-YL
G460-GN
202-BK
PANEL LAMP
(SHIFT LEVER)
7N-5876
NOTE B
OR-18
BK-18GROUND
M917-PK AND
M918-GN ARE
TWISTED PAIR
V+
SIGNAL
3
1
2
308-YL
E459-WH
2
E975-PU
F775-BU9G-7641
YL-18
L20
L63
L38
L7
L36
L7
L7
L36
L36
L36
L38
L38
L26
BK-18
(26) TRANSMISSION
OIL TEMP SENS
3E-8700
L26
L26
L28
WH-18
308-YL
L43
L43L43
L43
L42
L42
L44
V F
L63
L63
M918-GN
M917-PK
202-BK
1
2
V
FN
N
N
N
N
308-YL
308-YL
N
UNUSED
UNUSED
UNUSED
BU ALARM
UNUSED
6 UNUSED
EMS OUT
UNUSED
UNUSED
UNUSED
SOLENOID 5
SOLENOID 7
276-BK
SOLENOID 6
SOLENOID 8
UNUSED
SOL RTN
A/M LAMP
202-BK
F
UNUSED
308-YL
202-BK
202-BK
G
12
308-YL
755-OR
D
M917-PK
E
307-OR
892-BR
893-GN
E937-PU
29 TOS + INP
A
B
307-OR
L6
SERVICE
TOOL
CONNECTOR
9W-1951
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
308-YL
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
F
308-YL
308-YL
308-YL
308-YL
308-YL
U
A
308-YL
754-BU
UNUSED
STEERING CONSOLE
UNUSED
UNUSED
G
E975-PU
E459-WH
E938-OR
202-BK
E939-WH
N
E940-BU
498-WH8
E975-PU
E941-YL
306-GN
E942-GN
321-BR
E943-BR
795-YL
921-WH
E944-GY
460-WH
101-RD-10
E945-PU
40
5
4
L71
113-RD
439-YL
5
1
4
3
4
8
7
1
3
2
6
2
5
2
5
7
9
3
4
6
8
1
200-BK
L76 L76
200-BK
L76 L76
200-BK-8
L19
L16
L12
L21 L21
L21L21
L62
L19
L21
L21
L62
L62 L62
L62
L16
L16
L12
E975-PU
A506-OR
A503-PK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
- +
200-BK
-+
9
9
- +
(8) REAR
WASHER
7T-8891
(8) FRONT UPPER
WASHER
7T-8891
321-BR
A
BK-18
BK-18
2
1
308-YL
308-YL
2
1
308-YL
(1) BACKUP
ALARM
123-6449
CCC
921-WH
321-BR
BK
BK
6498-WH
507-WH
506-PU
578-BU
(8) FRONT LOWER
WASHER
7T-8891
507-WH
200-BK
(21) FRONT
FRAME
200-BK
200-BK-6
202-BK
200-BK-8
108-BU
200-BK
200-BK
200-BK
M
498-WH
DIFF
UNLOCK
LAMP
7N-5876
NOTE B
611-PU
HI BEAM
INDICATOR
7N-5876
NOTE B
M
M
200-BK
200-BK
200-BK
200-BK
200-BK
4
CAB
GROUND
611-PU
619-GN
114-RD
322-GY
BLOWER
9X-0343
(E) DEFROSTER
9X-9657
A506-OR
200-BK
MOTOR
MOTOR
501-GN
118-GY
500-BR
502-OR
(E) RESISTOR
7T-4003
RD
BK
609-YL
200-BK
GND
PARKB+
GN
GY
BR
OR
4
2
3
1
HI
LO
MOTOR
T
BK
FRONT
FRAME
MOTOR1
2
MOTOR
200-BK-6
A506-OR
K
614-PU614-PU
614-PU
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
M
M
A
A
LAMP
8M-6176
VOLTMETER
COOLANT
TEMP
A429-YL
M M
308-YL
M
CLUSTER
127-8314
WH
RD
OR
PU
GN
GY
PK
YL
BK
(12 V)
(24 V)
(12 V)
(24 V)
IGN
15
SEND
GRD
IGN
SEND
37
GRD
IGN
SEND
GRD
L4
L4
M
M
ARTICULATION
AA
AA
AA
K
K
K
K
A
ZZ
28
10
ZZ
200-BK
308-YL
E458-YL
E458-YL
614-PU
A476-PU
200-BK
439-YL
308-YL
U
129-BU
CIGAR LIGHTER
24V CIGAR
LIGHTER
9W-0335
200-BK
F473-YL
F473-YL
U
10A
GGGG
101-RD
614-PU
1
2
3
4
200-BK
INSTRUMENT PANEL
124-RD
ENGINE OIL
PRESSURE
19
MM
200-BK
20
7
8
1
2
TRANS
ACTION
LAMP
7N-5876
NOTE B
200-BK
M
AIR
PRESSURE
LAMP
7N-5876
NOTE B
M
17
200-BK
PARKING
BRAKE
LAMP
7N-5876
NOTE B
3
C491-PU
308-YL
C491-PU
18
22
23
24
25
26
27
14
21
30
31
32
33
34
35
36
13
38
39
16
752-YL
UNUSED
751-GN
M918-GN
TRANS TEMP
G460-GN
202-BK
M917-PK
921-WH
903-GY
902-BR
901-WH
E946-OR
E947-WH
E948-BU
E949-YL
277-BK
900-PU
306-GN
F843-YL
C
1
M998-OR
F843-YL
614-PU
A
306-GN
M998-OR
A476-PU
F
795-YL
614-PU
795-YL
DIA CODE 2
J2
306-GN
DIA CODE 0
F
441-OR
N
306-GN
J1
M998-OR
M918-GN
200-BK
202-BK
A429-YL
441-OR
20
DIA CODE 1
+BATTERY
36
39
202-BK
439-YL
200-BK
38
37
40
35
34
614-PU
200-BK
614-PU
200-BK
33
C'SHIFT PIN
INDICATOR
LAMP
7N-5876
NOTE B
32
F
31
30
29
28
GRD
(E) TRANSMISSION CONTROL
132-2148
G
R/S SYSTEM
AIR PRESS
1W-3306
LAMP
7N-5876
NOTE B
L/S SYSTEM
AIR PRESS
1W-3306
LAMP
7N-5876
NOTE B
MM
M
SEND
M
COLD
TEMP
LAMP
7N-5876
NOTE B
200-BK
M M
E975-PU
IGN
8
5
7
6
4
2
1
3
4
8
7
2
2
3
6
202-BK
H
27
26
1
25
24
23
22
21
18
17
6
3
5
7
4
5
2
6
4
1
9
3
7
8
10
5
16
E949-YL
E948-BU
2
1
2
1
9
5
3
E947-WH
4
6
8
E946-OR
E945-PU
7
10
L71
L71
L71
L71
K
K
L
FFF
FFF
611-PU
FFF
FFF
FFF
FFF
L
L
L
LL
E944-GY
L
L
L
L L
L
E942-GN
L
L
L L
L
E941-YL
L
E940-BU
E939-WH
L
L
L
L
L
578-BU
L
L
L
L
200-BK
L
L
E938-OR
202-BK
E937-PU
556-WH
L
L
L
L
NEUTRAL
577-PU
576-PK
PARK
REVERSE
575-YL
506-PU
505-BU
504-YL
119-PK
(C) REAR
DEFROST SW
9X-9638
(C) FRONT
DEFROST SW
9X-9638
152-BU
152-BU
152-BU
200-BK
MUR440E
119-PK
119-PK
H
L
B B
P W
L
WP
B
503-BR
B
L
W
H
P
B
106-8704
507-WH
119-PK
119-PK
118-GY
506-PU
578-BU
507-WH
575-YL
577-PU
576-PK
152-BU
101-RD-10
614-PU
L
L
200-BK
614-PU
144-GN
603-PK
3
118-GY
118-GY
118-GY
A
200-BK
L76L76
584-YL
584-YL
4K-5122 HOLDER AS.
3K-8782 (C) FUSE
614-PU
200-BK
L19L62
L5
L5
L20
L20
L21
FORWARD
7
6
L18
L18
L18
L18
5
200-BK
L7
L7
L7 L7
921-WH
921-WH
10
9
8
L7
L7
2
200-BK
921-WH
200-BK
(C) FRONT
LOWER
WIPER SW
3T-6655
200-BK
118-GY
152-BU
119-PK
7
6
141-PK
151-GN
108-BU
1
498-WH
144-GN
A503-PK
A506-OR
584-YL
2
151-GN
5
200-BK
200-BK
200-BK
1
584-YL
3
4
A504-GN
6
A507-YL
200-BK
604-OR
130-RD
101-RD-10
507-WH
E943-BR
GND
SEVENTH
SIXTH
FIFTH
FOURTH
THIRD
SECOND
EIGHTH
GROUND
PARK
FIRST
UNUSED
B+
200-BK
141-PK
614-PU
101-RD
507-WH
578-BU
506-PU
118-GY
501-GN
500-BR
502-OR
UNUSED
UNUSED
200-BK
A507-YL
A504-GN
603-PK
119-PK
505-BU
503-BR
504-YL
(C) FRONT
UPPER
WIPER SW
3T-6655
UNUSED
(C) BEACON
SW
9X-9639
101-RD
152-BU
200-BK
(9) FRONT LOWER
WIPER
9X-3392
576-PK
152-BU
575-YL
577-PU
UNUSED
108-BU
A503-PK
A506-OR
152-BU
576-PK
575-YL
577-PU
GN
GY
BR
OR
UNUSED
4
UNUSED
2
3
1
HI
LO
MOTOR
T
BK
UPPER WIPER/WASHER
LOWER WIPER/WASHER
REAR WIPER/WASHER
FRONT DEFROSTER
REAR DEFROSTER
DOME LAMP
BEACON
10A
10A
10A
10A
10A
135-BU
10A
10A
B
6
L
UNUSED
UNUSED
H
4
3
UNUSED
(C) TRANSMISSION DIRECTION
AND SPEED SW
8C-5337
24
119-PK
200-BK
23
502-OR
614-PU
200-BK
1
5
101-RD
101-RD
101-RD
101-RD
22
101-RD
101-RD
L
501-GN
(D) FRONT UPPER
WIPER MOTOR
9X-3392
500-BR
2
200-BK
200-BK
L10
L10
L14
L14
L13
21
20
19
L13
L11
L11
L9
L9
L8
L8
A
A
K
L
18
17
L
KK
A
K
LH
200-BK
506-PU
578-BU
16
15
1
2
202-BK
3
4
5
6
575-YL
577-PU
576-PK
101-RD
152-BU
(C) REAR
WIPER SW
3T-6655
7
8
9
10
200-BK
CAB SWITCH AND FUSE PANEL
200-BK
200-BK
200-BK
200-BK
619-GN
619-GN
611-PU
611-PU
P
P
L1
L1
11
200-BK
12
921-WH
9
13
14
OPERATORSTATION
CIRCUIT GROUPING
DESIGNATION
609-YL609-YL
609-YL
L2
L#
127-0574
M917-PK AND M918-GN ARE TWISTED PAIR
127-0574
P
P
127-0574
127-0574
127-0574
127-0574
CCA
P
A
A
(16) FORWARD
HORN
7T0969
NOTE E
114-RD
322-GY
619-GN
611-PU
FFFF
ATCH WIRE, CABLE &
COMPONENT
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
WIRE AS.
HARNESS AS.
BLUE
GREEN
BU
GN
RD
WH
OR
YL
PK
BK
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
J
1
2
611-PU
619-GN
200-BK
CONNECTOR
200-BK
307-OR
SYMBOL DESCRIPTION
BROWN
PURPLE
GRAY
202-BK
BLACK
COLOR
202-BK
308-YL
308-YL
REDNEUT
15
14
13
12
11
ABBREV
893-GN
PINK
202-BK
F
277-BK
YELLOW
FFFF
202-BK
892-BR
308-YL
202-BK
INCH PEDAL11
321-BR
202-BK
202-BK
FFFF
10
202-BK
UNUSED
TOS - INP
202-BK
M998-OR
308-YL
751-GN
752-YL
754-BU
755-OR
900-PU
901-WH
902-BR
307-OR
8
903-GY
921-WH
E975-PU
5
4
3
1
2
7
PARK
REVERSE
E949-YL
E948-BU
307-OR
306-GN
306-GN
921-WH
FORWARD
EIGHTH
SEVENTH
SIXTH
FIFTH
FOURTH
276-BK
GROUND
SOL 2 OUTPUT
THIRD
SECOND
F
278-BK
278-BK
FIRST
RED NEUTR
CAT LINK +
NEUTRAL
+BATTERY
SW 1 INPUT
BAT +
SW 2 INPUT
SOL 1 OUTPUT
E949-YL
E948-BU
307-OR
202-BK
F
(10) NEUTRAL
START
CONTROL
117-9364
UNUSED
GROUND
SOL RTN
M917-PK AND
M918-GN ARE
TWISTED PAIR
9
19
UNUSED
TRANS LAMP
SOLENOID 4
UNUSED
UNUSED
SOLENOID 3
SOLENOID 2
SOLENOID 1
VHP SOL
+BATTERY
ORANGE
WHITE
RED
BR
PU
6
CAT LINK -
GY
609-YL
200-BK
GROUND
UNUSED
START SW.
UNUSED
921-WH
921-WH
921-WH
E949-YL
E948-BU
E947-WH
E946-OR
E945-PU
E944-GY
E943-BR
E942-GN
E941-YL
E940-BU
E939-WH
E938-OR
E937-PU
893-GN
892-BR
G
G F
921-WH
E975-PU
202-BK
795-YL
307-OR
308-YL
1
2
101-RD
1
2
3
4
5
619-GN
200-BK
200-BK
611-PU
LO BEAM
HEADLAMP
9X-7169
HI BEAM
HEADLAMP
9X-7170
BLADE
FLOOD
LAMP
9X-6775
1
2
3
4
1
2
2
1
200-BK
L71
200-BK
P
P
(16) BRAKE AIR SW
112-2404
L46
BK-18
(16) BRAKE AIR SW
112-2404
BK-18
439-YL
113-RD
A
3
BK-18
2
L5
L1L1
4
N
1WH-18
308-YL
BK-18
UNUSED
A
L3
L2
202-BK
P
P
202-BK
A
A
A
A
CCA
GN
GN
WH-18
NOTE E: ONLY ONE FORWARD HORN SHOULD BE INSTALLED
NOTE D: THE FOLLOWING WIRES MUST BE TWISTED
AT LEAST 1 TURN / 25 MILLIMETERS
710-GN & 202-BK: 892-BR & 893-GN
611-PU
619-GN
NOTE G: FRONT FLOOD LAMPS AND REAR FLOOD
LAMPS USE SWITCH 9X-9632
NOTE F: WITH FRONT FLOOD LAMPS ONLY USE
SWITCH 123-5849
(16) CENTERSHIFT
SOLENOID
8T-8808
1
2
F775-BU
200-BK
CABLE AS.
GN
GN
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
THIS IS THE SCHEMATIC FOR THE 120H AND
UNLESS OTHERWISE SPECIFIED: ALL WIRES IN A SPLICE
AND XMSN SHIFTER IN NEUTRAL
6R
5R
4R
3R
114-RD
322-GY
1
2
A (16) FORWARD
HORN
SOLENOID
7T-9074
NOTE E
2R
1R
8F
7F
6F
5F
4F
3F
2F
1F
N
PARK
(16) STOP LAMP
SW
2M-9346
E458-YL
E458-YL
WH-18
(19) CENTERSHIFT
INDICATOR SW
3E-9367
130-RD
604-OR
E458-YL
200-BK
E458-YL
200-BK
TRANSMISSION SHIFT LEVER LOGIC TABLE:
NOTE B: TERMINAL 3T-3157
SPRING 3T-3159
SOCKET 3T-3158
CONTACT 6D4161
BOOT 3T-3278
TO
GND
NOTE C:
24V OUTPUTS
NEUSOL
RET8
W/
AWD76
SOLENOIDS D
HPGEAR 5
B
U43
S
T2
609-YL
200-BK
OPERATORSTATION
1
WH-18
1
2
619-GN
200-BK
611-PU
200-BK
LO BEAM
HEADLAMP
9X-7169
127-0574
HI BEAM
HEADLAMP
9X-7170
BLADE
FLOOD
LAMP
9X-6775
GAUGES
(A) GAUGE
GAUGEGAUGE
V
X
Y
FFFF
AA
CC
JJJ
HH
IDENT
L
N
P
FFF
U
A
AAA
CCC
E
F
G
H
J
K
NN
GGGG
KKK
RR
LLL
TT
UU
VV
MMM
LL
M
LOC
(TRANS SPEED SENDER)
(HEATER GP)
(FUEL TANK)
(FORWARD HORN)
(HEADLAMP BREAKER)
(BLADE FLOOD LAMP)
(REAR FLOOD LAMP)
(REAR FLOOD LMP-FUEL TNK)
(SW PANEL)
(TRANSMISSION)
(HEADLIGHTS-BAR)
(CAB FUSE PANEL)
(XSMN CONSOLE-SWITCHES)
(PLATFORM)
(ENGINE)
(RADIATOR GRILL)
(R FRAME)
(R FRAME-TRANS)
(XSMN CONSOLE)
(CAB-REAR)
(STEERING CONSOLE)
(CAB-FRONT)
(HORN SWITCH)
(FUSE TO CIGAR LIGHTER)
(POS BAT TO START MTR)
(NEG BAT/DISCONNECT SW)
(DISCONNECT SW TO GND)
(NEG BAT TO POS BAT)
(START MTR TO FRAME GND)
(GND-R FRAME TO F FRAME)
(GND-F FRAME TO CAB)
(START MTR TO ENGINE)
(GAUGE CONSOLE)
CHG
02
00
00
02
00
02
01
03
00
02
00
01
01
01
00
00
00
00
00
02
01
00
00
00
00
01
01
00
03
00
02
01
01
PART NO.
104-8588
124-1429
144-0382
142-8470
115-9446
101-8190
101-8192
101-8193
142-0732
137-1120
127-1036
127-1030
143-3580
141-5445
143-2445
144-0373
144-0383
145-5999
142-5835
101-8161
142-0776
142-0731
116-2145
139-0071
111-0871
5T-1553
110-6399
143-5963
061-7661
7G-1060
1S-2342
8Y-9603
142-7533
NOTELEVEL
271
154 ATCH
230
121
141 ATCH
106 ATCH
205 ATCH
206 ATCH
180 ATCH
270
100 ATCH
183 ATCH
171
120
220
203
201
202
170
182 ATCH
140
181 ATCH
143
210
211
212
213
214
204
105
221
160
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAUGE
ARE THE SAME IDENT. NUMBER, COLOR, AND 16 GAUGE
TO MACHINE STRUCTURE
KEY START SW
(C) KEY START SW
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
(C) ACTION ALARM
ARC SUPPRESSOR
(B) START AID SW
E460-BRE460-BR
E460-BR
135H STANDARD SERIES MOTOR GRADER(145-5118 CH01)
CONN 1
CONN 2
CONN 3
CONN 4
CONN 5
CONN 7
CONN 6
CONN 10
CONN 8
CONN 9
CONN 11
CONN12
CONN 14
CONN 13
CONN 19
CONN 18
CONN 21
CONN 22
CONN 17
CONN 16
CONN 15
CONN 28
CONN 27
CONN 26
CONN 25
CONN 29 CONN 30
CONN 23
CONN 24
CONN 33
CONN 32
CONN 34
CONN 31
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
E50102
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.
PANEL LAMP CIRCUIT.
WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
START AID CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.
U
REAR FRAME
(24) GROUND STRAP

10. MACHINE HARNESS CONNECTOR AND
COMPONENT LOCATIONS
E
E
D
D
C
C
B
B
A
A
30
30
29
29
28
28
27
27
26
26
25
25
24
24
23
23
21
21
20
20
19
19
18
18
17
17
16
16
15
15
14
14
13
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
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