©
1997 Caterpillar
All Rights Reserved
Printed in U.S.A.
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm — Action B-8 C Sender — Engine Coolant Temperature B-14 11
Alarm — Backup F-15 1 Sender — Engine Oil Pressure B-13 13
Alternator D-14 2 Sender — Transmission Speed D-15 14
Battery C-14 3 Solenoid — Centershift B-3 16
Battery C-14 4 Solenoid — Differential Unlock E-14 17
Breaker — Alternator D-13 5 Solenoid — Dual Horsepower A-13 5
Breaker — Headlamp D-10 B Solenoid — Engine Shutdown D-13 5
Control — Neutral Start A-8 10 Solenoid — Forward Horn A-3 16
Control — Transmission A-7 E Solenoid — Park Brake B-12 16
Solenoid — Start Aid A-13 18
A-8 C Solenoids — Transmission Valves E-15 14
Fuses Block D-9 B Switch — Beacon B-6 C
Fuses (10A) B-6 C Switch — Blower (Heater Group) A-10 C
Gauge — Cluster F-5 A Switch — Brake Air Pressure A-2 16
Ground — Engine C-13 12 Switch — Centershift Indicator B-3 19
Ground — Frame Cab D5,6 24 Switch — Centershift Pin B-8 C
Ground — Front, Rear Frame C-12 20 Switch — Defrost, Front A-6 C
Ground — Front Frame D-6 21 Switch — Defrost, Rear B-6 C
Ground — Rear Frame C-13 28 Switch — Differential Unlock D-9 B
Horn — Forward F-3 16 Switch — Disconnect C-14 13
Meter — Service E-10 B Switch — Engine Coolant Temp (Start Aid) A-14 11
Motor — Blower E-4 E Switch — Flood Lamp D-8 B
Motor — Blower (Heater Group) A-10 E Switch — Forward Horn E-9 B
Motor — Blower, Defroster A-11 E Switch — Fuel Pressure B-13 13
Motor — Starter C-13 5 Switch — Head/Tail Lamp E-8 B
Motor — Washer, Front Lower F-6 8 Switch — Headlamp Dimmer E-9 B
Motor — Washer, Front Upper F-6 8 Switch — Inching Pedal Pressure D-15 14
Motor — Washer, Rear F-5 8 Switch — Key Start B-9 C
Motor — Wiper, Front Lower C-4 9 Switch — Park Brake Pressure B-11 16
Motor — Wiper, Front Upper D-4 D Switch — Start Aid E-8 B
Motor - Wiper, Rear B-11 D Switch — Stop Lamp Pressure A-2 16
Relay — Start D-13 5 Switch — Tail Lamp D-8 B
Relay — Transmission Action Lamp C-10 8 Switch — Transmission Oil Temp D-15 26
Resistor — Blower Speed B-11 E Switch — Wiper, Front Lower A-5 C
Resistor — Blower Speed E-4 E Switch — Wiper, Front Upper B-5 C
Resistor — Blower Speed (Heater Group) A-10 E Switch — Wiper, Rear A-5 C
Sender — Articulation C-12 7
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).
Control — Transmission Direction and Speed
SW
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 C-15 26
CONN 2 E-15 26
CONN 3 F-14 6
CONN 4 F-14 22
CONN 5 A-14 5
CONN 6 A-14 30
CONN 7 B-13 29
CONN 8 B-13 29
CONN 9 D-13 29
CONN 10 E-12 21
CONN 11 E-12 25
CONN 12 E-12 25
CONN 13 E-12 25
CONN 14 D-12 21
CONN 15 D-12 21
CONN 16 B-12 25
CONN 17 A-11 C
CONN 18 D-10 B
CONN 19 B-9 25
CONN 20 E-9 B
CONN 21 E-9 23
CONN 22 A-8 C
CONN 23 B-7 25
CONN 24 B-7 C
Service Tool Connector
CONN 25 E-6 24
CONN 26 E-6 24
CONN 27 C-6 24
CONN 28 C-6 24
CONN 29 C-6 27
CONN 30 A-6 27
CONN 31 C-S 27
CONN 32 C-5 27
CONN 33 B-3 15
CONN 34 E-3 23
CONN 35 F-3 23
CONN 36 F-3 23
CONN 37 D-10 23
CONN 38 D-10 23
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.
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 0 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 0 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
Related Electrical Service Manuals
Form Number
Alternator (6N-9294):
Consist No. 3T-6352 SENR4978
Consist No. 7N-9720 SENR2082
Consist No. 9G-4574 SENR4130
Alternator (100-5047):
Consist No. 100-5045 SENR4130
Consist No. 100-5046 SENR2082
Electronic Transmission Shift Control SENR6982
Starting Motor: (106-8555)
Consist No. 6V-5207 SENR3581
Consist No. 6V-5023 SENR3536
Consist No. 6V-5226 SENR4975
Title
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
45.0 kPa Max 5.0 kPa MIN
2M-9346 Stop Lamp Pressure (6.5 psi Max) (0.5 psi MIN) Normally Open
93.0 ± 20.8 kPa 69 ± 21 kPa
3T-4418 Fuel Pressure (13.5 ± 3.0 psi) (10 ± 3 psi) Normally Open
37.8 ± 2.8°C 26.7°C MIN
8N-1693 Engine Coolant Temp (100 ± 5°F) (80.0°F MIN) Normally Closed
75.0 kPa MAX 50.0 kPa MIN
111-7088 Inching Pedal Pressure (10.9 psi MAX) (7.3 psi MIN) Normally Open
640 kPa MAX 530 ± 40 kPa
112-2404 Brake/Park Brake Air Pressure (92.0 psi MAX) (77.0 ± 6.0 psi) Normally Closed
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 postion at the contacts of the harness connector.
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-5383 Sender - Articulation Position 3 to 97
Start (Latch) 1.55 ± 0.15
3E-7985 Solenoid - Engine Shutdown Stop (Unlatch) 10.30 ± 1.03
54°C (130°F) -560 to 716
7N-8532 Sender - Engine Coolant 110°C (230°F) - 72 to 82
7T-4003 Resistor 10.0±0.5
7T-9073 Solenoid - Differential Unlock 33.6 ± 1.0
Solenoid - Forward Horn 55.17 ± 5.77
7T-9074 Park Brake
8T-8610 Solenoid - Dual Horsepower 13.5 ± 1.35
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 6.0
21.5 - 49.5 @ 552 kPa (80.1 psi)
116-9937 Sender - Engine Oil Pressure 227 - 257 @ 21 kPa (3.0 psi)
127-0574 Solenoid - Transmission 31 ± 3
¹ At room temperature unless otherwise noted.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits (Continued)
101 RD Bat(+) 506 PU Washer — Front
102 BU HdLmp 507 WH Washer — Rear
103 YL Aux Ckt 515 GY Blower Motor (HI)
105 BR Key Start Sw 516 GN Blower Motor (Medium)
108 BU Aux Ckt 517 BU Blower Motor (Low)
109 OR Alt Output (+) Term. 521 YL A/C SW To Refrigerant SW
113 OR Opr Mon Panel 522 WH A/C Clutch To Thermostat SW
114 GN Warning Horn (Forward) 556 WH Differential Lock
116 BR AuxCkt 575 YL Wiper — Aux (Park)
118 GY AuxCkt 576 PK Wiper — Aux (Low)
119 PK AuxCkt 577 PU Wiper — Aux (HI)
124 GN A/C 578 BU Washer — Aux
130 GN AuxCkt 584 YL Wiper SW Jumper
141 PK AuxCkt A503 PK Front Defroster Fan (Low)
144 GN AuxCkt A504 GN Rear Defroster Fan (Low)
149 Pu Aux Ckt A506 OR Front Defroster Fan (HI)
151 GN Aux Ckt A507 YL Rear Defroster Fan (Hi)
152 BU AuxCkt Lighting Circuits
165 YL Aux Ckt 603 PK Rotary Beacon
Ground Circuits 604 OR Stop Lamp
200 BK Main Chassis 608 GN Flood Lamp — Rear
202 BK XMSN Ctrl 609 YL Flood Lamp — Side
277 BK XMSN Ctrl ldent Code 1 611 PU Head Lamp Hi
278 BK XMSN Ctrl Ident Code 2 614 PU Park/Tail/Dash/Lamp
Basic Machine Circuits 619 GN Head Lamp Lo
301 BU Starter No. 1 Sol Control Circuits
304 WH Starter Relay No. 1 Output 710 GN XMSN Speed Pickup Signal
306 GN
Starter Relay Coil To Neut Start SW Or Key
Start SW
751 GN XMSN Shift Sol No. 1 Or 3
307 OR Key Start SW To Neutral Start SW 752 YL XMSN Shift Sol No. 2
308 YL Main Power Relay Coil 754 BU XMSN Shift Sal No. 3 Or 1
310 PU Start Aid SW To Start Aid Sol 755 OR XMSN Shift Sal No. 4 Or 5
311 WH Start Aid Sol To Temp SW 758 GN AWD Clutch SW
321 BR Backup Alarm Lamp Travel Alarm 795 YL Dual hp Sol
322 GY Warning Horn (Forward) B751 BU (NFND) Centershift Lock Sal
326 PU Key Start SW “C” Term. 892 BR Start Mod Right (-) Port/CAT Data Link (-)
Monitoring Circuits 893 GN Start Mod Right (+) Port/CAT Data Link (+)
403 GN Alternator (R) Term. G865 BU +12 Volt Switch Power
439 YL Lamp Indicator 900 PU XMSN Shift Sal No. 5 or 4
441 OR Eng Coolant Temp Gauge 901 WH XMSN Shift Sol No. 6
A429 YL Articulation Indicator 902 BR XMSN Shift Sal No. 7
A476 PU Eng Oil Press Gauge To Sender — Eng #1 903 GY XMSN Shift Sal No. 8
B476 BU (NFND) Transmission Indicator Lamp 921 WH XMSN Sal No 1 Or 3 Return
C491 PU Park Brake Pressure E937 PU MG MESH CNTL — Redundant Neutral
E458 YL Low Air Pressure Lamp E938 OR MG MESH CNTL - First Gear
E459 WH Low Air Pressure Alarm E939 WH MG MESH CNTL - Second Gear
E460 BR Trans CntI To Relay Coil E940 BU MG MESH CNTL - Third Gear
G460 GN Transmission Temperature E941 YL MG MESH CNTL — Fourth Gear
Accessory Circuits E942 GN MG MESH CNTL - Fifth Gear
500 BR Wiper - Front (Park) E943 BR MG MESH CNTL - Sixth Gear
501 GN Wiper - Front (Low) E944 GY MG MESH CNTL - Seventh Gear
502 OR Wiper - Front (HI) E945 PU MG MESH CNTL — Eighth Gear
503 BR Wiper - Rear (Park) E946 OR MG MESH CNTL — Forward Direct
504 YL Wiper - Rear (Low) E947 WH MG MESH CNTL - Reverse Direct
505 BU Wiper - Rear (HI) E948 BU MG MESH CNTL - Park
E949 YL MG MESH CNTL - Neutral
E975 PU MESH Lamp
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
7
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
7
Machine Harness Connector And Component Locations
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.
1
1
RENR1436
December 1997
12H, 140H, And 160H
Electrical System
12H:
4ER1-499
140H:
5HM1-1149
8JM1-279
160H:
2FM1-399
9JM1-349
Motor Graders (Standard Version)
2
1
4
3
8
2
7
1
6
9
5
4
3
2
10
1
1
2
C
B
A
200-BK
608-GN
608-GN
G
S
T
109-OR-10
604-OR
614-PU
321-BR
321-BR
200-BK
614-PU
604-OR
BACKUP
ALARM
3T-1815
326-PU
200-BK-10
301-BU-10
306-GN
304-WH-10
101-RD-4
200-BK
903-GY
ALTERNATOR
BREAKER
2H-1507 STD
9S-0174 ATCH
902-BR
901-WH
921-WH
900-PU
755-OR
754-BU
752-YL
200-BK
921-WH
751-GN
403-GN
109-OR-4
604-OR
614-PU
321-BR
200-BK
200-BK
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
127-0574
127-0574
127-0574
127-0574
127-0574
127-0574
127-0574
127-0574
604-OR
614-PU
200-BK
RD
WH
BK
REAR FLOOD
LAMP
9X-6775
ALTERNATOR
6N-9294 35A STD
100-5047 50A ATCH
START
RELAY
3E-7279
40A
109-OR-4
ALT
+
R
1
3
2
STOP/TAIL
LAMP
8C-6207
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
B
B
B
B
Y
Y
Y C
2
1
L69
L69
L69
L46
L46
L51 L51
L51
L50
L50
SHUTDOWN
SOL
3E-7985
Y
Y
200-BK
556-WH
F
G460-GN
G865-BU
G865-BU
G460-GN
OR-18
BK-18
GROUND
V+
SIGNAL
YL-18
TRANSMISSION
OIL TEMP SW
136-2632
202-BK
DIFFERENTIAL
UNLOCK SOLENOID
7T-9073
GN
GN
1
2
556-WH
105-8827 DIODE AS.
101-RD-4
Y
Y
Y Y
Y
200-BK
1
2
F
N
N
N
N
N
N
B
HHDD
N
N
D
E
D
D
200-BK
60A
N
2
1
2
3
4
1
5
5
4
3
1
1
2
2
6
1
2
TRANS SPD SENDER
104-6387
710-GN
202-BK
L69
200-BK
608-GN
101-RD-4
E458-YL
FUEL
SW
3T-4418
200-BK
200-BK
°T
608-GN
RD-00
BK-00
200-BK
795-YL
200-BK-4
BK-6
REAR
FRAME
311-WH
310-PU
1
2
COOLANT SW
8N-1693
BK-18
BK-18
START AID
SOLENOID
9G-4365
°T
G
COOLANT TEMP
SENDER
7N-8532
1
3
2
STARTER
106-8555
200-BK
614-PU
604-OR
301-BU-10
304-WH-10
441-OR
STOP/TAIL
LAMP
8C-6207
DISCONNECT SW
7N-0718
RD-00
BK-00
ENGINE
BK-00
BK-00
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
311-WH
B
B
B
B
B
200-BK
Y
Y
200-BK
B
B
C
C
E459-WH
A476-PU
441-OR
311-WH
200-BK
608-GN
403-GN
311-WH
310-PU
E458-YL
L51
L69
200-BK
200-BK
L63
L63
L50
L50
L51
L52
200-BK
200-BK-10
L52
L54
L55
L56
REAR
FRAME
BK-18
12V BATTERY
3T-5760
DUAL HORSEPOWER
SOLENOID
8T-8610
NOTE E
WH-18
V EEEE
L27
200-BK
B
1
2
202-BK
710-GN
C
QQ
LL
UU
UU
1
2
200-BK-4
L53
Y
7
HHDD
795-YL
YHH
D
SS
SSRR
QQ
RRTT
TT
E459-WH
326-PU
V
306-GN
710-GN AND
202-BK ARE
TWISTED PAIR
NOTE D
BK
B
310-PU
311-WH
A476-PU
ENGINE OIL
PRESSURE
SENDER
116-9937
L63
6
BK
3
2
4
6
7
9
5
8
1
4
5
8
3
2
2
7
6
5
4
3
2
1
1
5
4
3
2
1
5
6
4
3
2
1
2
1
101-RD-4
J
L46
10
101-RD-4
200-BK
200-BK
C491-PU
608-GN
A476-PU
E458-YL
124-GN
113-OR
105-BR
200-BK
310-PU
441-OR
441-OR
E458-YL
608-GN
A476-PU
L67
L67
L67
L56 L56
L56 L56
L55
L55
L55
L55
L54 L54
L54 L54
L63
L16
L16
L16
L44L44
7
6
L38
200-BK
A429-YL
900-PU
795-YL
306-GN
101-RD-4
1
326-PU
310-PU
G460-GN
G865-BU
903-GY
902-BR
200-BK
A429-YL
755-OR
754-BU
921-WH
752-YL
901-WH
102-BU
101-RD
751-GN
403-GN
L65
108-BU
200-BK
L65
DOME LAMP
8C-9678
3
2
1
BK
RD
WH
SERVICE
METER
3E-9359
200-BK101-RD + -
JJ
101-RD-10
HEADLAMP
BREAKER
3T-2662
15A
611-PU
758-GN
FUSE BLOCK
9G-0747
200-BK
202-BK
403-GN
L9
L9
L9
J
J
A
A
J
L27
EEEE
G
AA
710-GN
202-BK
A429-YL
K
A
C
AC
E459-WH
G
F
GF
L23
C
A
403-GN
609-YL
608-GN
165-YL
130-GN
L22
3K8782 FUSE (10A)
8M8948 FUSE (15A)
J
101-RD
SIG
L53
101-RD-4
101-RD-10
1
403-GN
710-GN AND 202-BK
ARE TWISTED PAIR
NOTE D
101-RD-10
1
2
3
2
1
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
PARK BRAKE
PRESS SW
112-2404
PARK BRAKE
SOLENOID
7T-9074
GN
GN
BK-18
200-BK
BK-18
200-BK
200-BK
321-BR
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
614-PU
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
L67
L54
L55
L56
L51
L44
L38
L7
L36
L36
L36
L41
L41
L41
L41
L20
L20
1
2
RESISTOR
7T-4003
BEACON
9X-9556
BULB
9X-7849
1
2
REAR WIPER
9X-3392
4
200-BK
200-BK
556-WH
200-BK
200-BK
H
308-YL
L9
556-WH
614-PU
L7
200-BK
L6
B476-BU
H
H
VV
VV
A
AE
H
H
H
A
C
522-WH
614-PU
308-YL
200-BK
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
BASE
7G-9730
PANEL LAMP
8D-1429
WH/RD-14
BK-14
MOTOR
PK
GY
BU
WH
RD
BK
BR
PU
TRANSMISSION ACTION
LAMP RELAY
106-9188
308-YL
308-YL
B476-BU
A
308-YL
3
4
5
2
1
200-BK
614-PU
HEATER GP 8C-9787
X
L42
E460-BR
U
308-YL
FRONT FRAMEREAR FRAME
604-OR
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
J
J
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
308-YL
3
2
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
A429-YL
116-BR
614-PU
200-BK
103-YL
6
4
3
1
5
2
614-PU
HEADLAMP/
TAIL SW
3E-9317
200-BK
439-YL
113-OR
200-BK
609-YL
2
1
614-PU
102-BU
556-WH
308-YL
322-GY
114-GN
611-PU
619-GN
614-PU
2
3
200-BK
614-PU
556-WH
L12
L12
L65
L65
L65
322-GY
2
1
130-GN
105-BR
124-GN
113-OR
165-YL 608-GN
116-BR
114-GN
149-PU
103-YL
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
HEADLAMP DIMMER SW
103-5678
149-PU
614-PU
FLOOD
LAMP SW
9X-9632
NOTE G
200-BK
614-PU
10A
123-6375
15A
10A
10A
10A
10A
10A
10A
HORN SW
116-2145
200-BK
200-BK
200-BK
DIFFERENTIAL
UNLOCK SW
123-5862
E975-PU
614-PU
614-PU
614-PU
614-PU
200-BK
200-BK
J
J
J
2
3
TAIL
LAMP SW
3E9319
614-PU
614-PU
103-YL
L9
L3
J
A
L23
JNN
E458-YL
L6
200-BK
L28
E458-YL
308-YL
J
103-YL
BLADE
FLOOD
LAMP SW
123-5849
NOTE F
3
2
L22
B
200-BK
B476-BU
614-PU
614-PU
614-PU
TAIL LAMPS
E458-YL
4
3
9
8
7
6
5
4
3
2
1
1
6
5
3
4
7
2
2
1
1
2
3
4
5
6
L71
L71
278-BK
278-BK
G
SHIFT CONSOLE
200-BK
200-BK
101-RD-4
614-PU
321-BR
604-OR
614-PU
E459-WH
326-PU
795-YL
306-GN
E460-BR
113-OR
113-OR
439-YL
921-WH
903-GY
902-BR
901-WH
900-PU
755-OR
754-BU
752-YL
751-GN
308-YL
200-BK
326-PU
307-OR
614-PU
105-BR
308-YL
307-OR
321-BR
DIA CODE 2
202-BK
DIA CODE 1
9G-9813
308-YL
326-PU
307-OR
B751-BU
105-BR
165-YL
RD
BK
ST
ON
OFF
B
306-GN
795-YL
S
C
R
CENTERSHIFT
PIN SW
9X-9634
200-BK
20 INCH PEDAL
202-BK
U
U
308-YL
U
U
U
U
U
200-BK
200-BK
200-BK
200-BK
892-BR
202-BK
G460-GN
277-BK
G
124-GN
614-PU
165-YL
893-GN
B751-BU
RED NEUT
202-BK
202-BK
J
614-PU
202-BK
U U
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-5337
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
FIRST
GROUND
EIGHTH
SECOND
THIRD
FOURTH
FIFTH
614-PU
200-BK
SIXTH
SEVENTH
E943-BR
FORWARD
REVERSE
PARK
NEUTRAL
E937-PU
202-BK
E938-OR
E939-WH
E940-BU
E941-YL
PANEL LAMP
(SHIFT LEVER)
7N-5876
NOTE B
E942-GN
E944-GY
E945-PU
E946-OR
E947-WH
E948-BU
E949-YL
202-BK
202-BK
3
1
2
308-YL
E459-WH
2
H
E975-PU
G
10
B751-BU
KEY START SW
9G-7641
202-BK
L20
L44
L63
L38
L7
L36
L7
L7
L36
L36
L36
L38
L38
L26
L26
L26
L28
L28
308-YL
L43
L43
L43
L43
L42
L42
L44
L44
G
L63
L63
F
A
758-GN
G865-BU
C
277-BK
G460-GN
E949-YL
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
25
24
23
22
21
18
17
16
15
14
13
12
11
10
8
5
4
3
1
2
7
E945-PU
E944-GY
L44
795-YL
E943-BR
321-BR
E942-GN
E975-PU
E941-YL
307-OR
E940-BU
308-YL
E939-WH
202-BK
E938-OR
G
202-BK
PARK
REVERSE
FORWARD
G
EIGHTH
SEVENTH
SIXTH
FIFTH
FOURTH
THIRD
SECOND
FIRST
RED NEUTR
CAT LINK +
(N) NEUT
BUFF TOS
UNUSED
GROUND
NEUTRAL
SERVICE
TOOL
CONNECTOR
9W-1951
B
A
TOS + INP9
E937-PU
893-GN
892-BR
NEUTRAL
START
CONTROL
117-9364
G
202-BK
307-OR
E948-BU
E949-YL
SOL 1 OUTPUT
SW 2 INPUT
BAT +
SW 1 INPUT
SOL 2 OUTPUT
GROUND
306-GN
306-GN
E
710-GN
D
U
U
A
8
308-YL
308-YL
308-YL
308-YL
308-YL
L43
19
202-BK
STEERING CONSOLE
G
202-BK
113-OR
202-BK
E459-WH
+12V
SOLE RETN
SOLENOID 8
SOLENOID 7
SOLENOID 6
G460-GN
892-BR & 893-GN
ARE TWISTED PAIR
NOTE D
SOLENOID 5
SOLENOID 4
E460-BR
SOLENOID 3
SOLENOID 2
SOLENOID 1
DUAL HP 6
101-RD-10
CAT LINK -
BU ALARM
A/M LAMP
START SW.
L71
113-OR
439-YL
5
1
4
3
4
8
7
1
3
2
6
2
5
2
5
7
9
3
4
6
8
1
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
-+- +
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
200-BK-6
202-BK
200-BK-8
108-BU
200-BK
200-BK
200-BK
200-BK
200-BK
4
CAB
GROUND
611-PU
619-GN
114-GN
322-GY
BLOWER
9X-0343
DEFROSTER
9X-9657
A506-OR
200-BK
MOTOR
MOTOR
501-GN
118-GY
500-BR
502-OR
RESISTOR
7T-4003
RD
BK
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
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
441-OR
614-PU
M
CLUSTER
127-8314
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
L4
L4
M
M
ARTICULATION
AA
AA
AA
K
K
K
K
A
ZZZZ K
308-YL
E458-YL
E458-YL
A476-PU
200-BK
439-YL
308-YL
B476-BU
B476-BU
INSTRUMENT PANEL
ENGINE OIL
PRESSURE
M
M
200-BK
TRANS
ACTION
LAMP
7N-5876
NOTE B
200-BK
200-BK
M
AIR
PRESSURE
LAMP
7N-5876
NOTE B
M
200-BK
PARKING
BRAKE
LAMP
7N-5876
NOTE B
C491-PU
308-YL
C491-PU
614-PU
A476-PU
614-PU
200-BK
A429-YL
441-OR
113-OR
439-YL
200-BK
614-PU
200-BK
614-PU
200-BK
C'SHIFT PIN
INDICATOR
LAMP
7N-5876
NOTE B
GRD
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
TRANS
LAMP
7N-5876
NOTE B
200-BK
M
M
E975-PU
IGN
8
5
7
6
4
2
1
3
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
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
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 FUSE
614-PU
200-BK
L19
L62
L5
L5
L20
L20
L21
L18
L18
L18
L18
L7
L7
L7
L7 L7
L7
L7
2
200-BK
200-BK
FRONT LOWER
WIPER SW
3T-6655
200-BK
118-GY
152-BU
119-PK
141-PK
151-GN
108-BU
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-GN
101-RD-10
152-BU
GND
PARK
B+
200-BK
141-PK
614-PU
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
101-RD
152-BU
200-BK
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
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
614-PU
200-BK
1
5
101-RD
101-RD
101-RD
101-RD
101-RD
101-RD
L
501-GN
FRONT UPPER
WIPER
9X-3392
500-BR
2
200-BK
200-BK
A
A
L
L
KK
A
K
LH
614-PU
506-PU
578-BU
507-WH
575-YL
577-PU
576-PK
200-BK
101-RD
REAR
WIPER SW
3T-6655
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
EEEE
L1
L1
200-BK
OPERATOR STATION
CIRCUIT GROUPING
DESIGNATION
609-YL 609-YL
609-YL
L#
P
P
CC
A
P
A
A
FORWARD
HORN
7T0969
NOTE H
114-GN
322-GY
619-GN
611-PU
Z
V
X
Y
Z
AA
CC
DD
HH
NOTECHG
ATCH WIRE, CABLE &
COMPONENT
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
LOC
WIRE AS.
HARNESS AS.
PART NO.IDENT
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
1
2
611-PU
619-GN
200-BK
CONNECTOR
200-BK
SYMBOL DESCRIPTION
BROWN
PURPLE
GRAY
BLACK
COLORABBREV
PINK
YELLOW
Z
Z
ORANGE
WHITE
RED
BR
PU
GY
609-YL
200-BK
1
2
L
N
P
S
U
A
B
C
D
E
F
G
H
J
K
1
2
3
4
5
LEVEL
LL
NN
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
BRAKE AIR SW
112-2404
BK-18
BRAKE AIR SW
112-2404
BK-18
439-YL
113-OR
A
3
BK-18
2
L5
L1
L1
4
1
WH-18
BK-18
A
L3
P
P
A
A
A
A
CCA
E458-YL
E458-YL
GN
GN
WH-18
NOTE H: ONLY ONE FORWARD HORN SHOULD BE INSTALLED
NOTE E: STD 140H AND 160H ONLY
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
CENTERSHIFT
SOLENOID
8T-8808
QQ
RR
SS
TT
UU
VV
ZZ
1
2
B751-BU
200-BK
CABLE AS.
GN
GN
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
THIS IS THE SCHEMATIC FOR THE 12H AND
UNLESS OTHERWISE SPECIFIED: ALL WIRES IN A SPLICE
AND XMSN SHIFTER IN NEUTRAL
6R
5R
4R
3R
114-GN
322-GY
1
2
A
FORWARD
HORN
SOLENOID
7T-9074
NOTE H
2R
1R
8F
7F
6F
5F
4F
3F
2F
1F
N
PARK
STOP LAMP
SW
2M-9346
WH-18
CENTERSHIFT
INDICATOR SW
3E-9367
130-GN
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
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
BLADE
FLOOD
LAMP
9X-6775
ACTION ALARM
LAMP RELAY
GAUGES
GAUGE
GAUGEGAUGE
M
231 ATCH
271
154 ATCH
230
121
141 ATCH
106 ATCH
205 ATCH
206 ATCH
180 ATCH
270
100 ATCH
183 ATCH
171
120
220
200
203
201
202
170
182 ATCH
140
181 ATCH
221
143
210
211
212
213
214
204
105
160
(TOS)
(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)
(R FRAME-ENGINE)
(RADIATOR GRILL)
(R FRAME)
(R FRAME-TRANS)
(XSMN CONSOLE)
(CAB-REAR)
(STEERING CONSOLE)
(CAB-FRONT)
(START MTR TO ENGINE)
(HORN SWITCH)
(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)
(GAUGE CONSOLE)
00
02
00
01
02
01
02
01
03
00
02
00
01
00
01
01
00
00
00
01
00
02
00
00
07
00
00
01
01
00
03
00
02
00
136-3153
104-8588
124-1429
126-8197
8W-1978
101-8197
101-8190
101-8192
101-8193
127-1029
137-1120
127-1036
127-1030
126-9166
127-0879
126-8541
126-7912
126-7238
126-7570
137-1717
137-1722
101-8161
138-1947
127-0908
9F-4337
116-2145
116-9981
5T-1553
110-6399
8W-3630
061-7661
7G-1060
1S-2342
137-5114
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAUGE
ARE THE SAME IDENT. NUMBER, COLOR, AND 16 GAUGE
TO MACHINE STRUCTURE
START AID SW
CONN 1
CONN 2
CONN 3
CONN 4
CONN 5
CONN 6
CONN 7
CONN 8
CONN 9
CONN 10
CONN 11
CONN 15
CONN 12
CONN 13
CONN 14
CONN 16
CONN 19
CONN 17
CONN 18
CONN 37
CONN 38
CONN 20
CONN 21
CONN 22
CONN 23
CONN 24
CONN 25
CONN 26
CONN 27
CONN 28
CONN 29
CONN 31
CONN 32
CONN 30
CONN 33
CONN 34
CONN 35
CONN 36
E11856
200-BK
140H AND 160H STANDARD SERIES MOTOR GRADER
(145-5121)
KEY START SW
ELECTRONIC SHIFT CONTROL
143-9634
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.
9 8 7
9 8 7
6
5 4
3 2
1
6
5 4
3 2
1
F
E
D
C
B
A
F
E
D
C
B
A
15 14 13 12 11 10
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