Connector Location¹
CONN 1
C-15
26
CONN 2
E-15
26
CONN 3
F-14
31
CONN 4
F-14
22
CONN 5
A-14
22
CONN 6
A-14
5
CONN 7
B-13
30
T
B-13
29
CONN 9
D-13
29
CONN 10
E-12
29
CONN 11
E-12
29
6 26
CONN 12
E-12
25
18 14
CONN 13
E-12
C
CONN 14
D-12
B
CONN 15
D-12
23
CONN 16
B-12
23
CONN 17
A-11
10
CONN 18
D-10
10
CONN 19 Service Tool
B-9
C
CONN 20
E-9
25
CONN 21
E-9
25
CONN 22
A-8
23
CONN 23
B-7
10
CONN 24
B-7
10
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
A-6
27
CONN 31
C-5
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
E-9
B
Symbols
Pressure Symbol
CONN 8
CONN 30
Electrical Schematic Symbols And Definitions
SENR9149-03 March 2006
Temperature Symbol
3 11
22
31
17
13
1
D
5
30
9
B
E
12 2
Fuse - A component in an electrical circuit that will open the circuit if too much current flows through it.
21
7
20
29
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.
19
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.
16 15
25 10
4
A 24
C
28
Ground (Wired): This indicates that the component is connected to a grounded wire. The grounded wire is fastened to the machine.
27
Ground (Case): This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.
12H, 140H, and 160H Motor Grader Standard Version Electrical System 12H: 4ER500-1135
D 27
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.
140H: 8JM280-UP 5HM1150-2999
32
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.
T
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.
160H: 9JM350-UP 2FM400-908
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.
A 22
B
11
30
18
9 C
12
24 E
13
23 8
5
1 6
14
2 31
4 3 29 28
25 20
15 16
10
Harness And Wire Symbols Wire, Cable, or Harness Assembly Identification
19
Pin
Socket
21 Single Wire Connector
Circuit Number Identification
Wire Gauge Plug
2
1 2
Resistor, Sender and Solenoid Specifications Part No.
11
N/A
12
N/A
3E-5383
641
F05 Transmission Solenoid A open circuit
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
3 to 97
F03 Transmission Solenoid B short to battery F03 Transmission Solenoid C short to battery
Bat(+)
504
YL
102
Wiper - Rear (Low)
BU
Hd Lmp
505
BU
Wiper - Rear (HI)
B-13
13
103
RD
Tail Lamps
506
PU
Washer - Front
Sender- Transmission Speed
D-15
14
105
RD
Key Start Sw
507
WH
Washer - Rear
7T-9073
Solenoid - Differential Unlock
33.6 ± 1.0
Alternator
D-14
2
Solenoid-Centershift
B-3
16
108
BU
Dome Lamp
515
GY
Blower Motor (HI)
Arc Suppressor
E-14
17
Solenoid - Differential Unlock
E-14
17
109
OR
Alt Output (+) Term.
516
GN
Blower Motor (Medium)
Battery
C-14
3
Solenoid-Dual Horsepower
A-13
5
113
RD
Gages
517
BU
Blower Motor (Low)
5
114
RD
Warning Horn (Forward)
521
YL
116
RD
Rear Floods
522
WH
118
GY
Upper Wiper / Washer
556
WH
119
PK
Rear Wiper / Washer
575
YL
Solenoid - Forward HornPark Brake
55.17 ± 5.77
Solenoid - Engine Shutdown Latch: Unlatch:
8C-3663
8T-8808
Battery 1.55 ± 0.1510.3 ± 1.03
Solenoid - Centershift
9G-1950
Resistor-Blower Speed
9G-4365
Solenoid - Start Aid Sender - Transmission Speed
127-0574
Solenoid - Engine Shutdown
D-13
Breaker - Alternator
D-13
5
Solenoid - Forward Horn
A-3
16
Breaker - Headlamp
D-10
B
Solenoid - Park Brake
B-12
16
10
Solenoid - Start Aid
A-13
18
124
RD
Heaters
576
PK
Wiper - Aux (Low)
Overall 2.00 ± .10 Tap 1.00 ± .05
E
Solenoids - Transmission Valves
E-15
14
126
PK
Xmsn CtrI
577
PU
Wiper - Aux (HI)
Control - XMSN Direction and Speed SW
A-9
C
Switch - Beacon
B-6
C
129
BU
Cigar Lighter
578
BU
Washer - Aux
130
RD
Stop Lamps
584
YL
Wiper SW Jumper
135
BU
Converter Switched +12 Volt Ouptut
A503
PK
Front Defroster Fan (Low)
141
PK
Front Defroster
A504
GN
Rear Defroster Fan (Low)
21.5 - 49.5 @ 552 kPa (80.1 psi) 227 - 257 @ 21 kPa (3.0 psi)
Solenoid - Transmission
31 ± 3
¹ At room temperature unless otherwise noted.
Fuses (10A)
B-6
C
Switch - Blower (Heater Group)
A-10
C
Fuses Block
D-9
B
Switch - Brake Air Pressure
A-2
16
Gauge - Cluster
F-5
A
Switch - Centershift Indicator
B-3
19
144
GN
Beacon
A506
OR
Front Defroster Fan (HI)
Ground - Engine
C-13
12
Switch - Centershift Pin
B-9
C
149
RD
Blade Floods
A507
YL
Rear Defroster Fan (HI)
Ground - Frame Cab
D5,6
24
Switch - Coolant Temp (Start Aid)
A-14
11
151
GN
Rear Defroster
Ground - Front Frame
D-6
21
Switch - Defrost, Front
A-6
C
152
BU
Lower Wiper / Washer
603
PK
Rotary Beacon
165
RD
Differential Lock
Ground - Front,Rear Frame
B-12
20
Switch - Defrost, Rear
B-6
C
Ground - Rear Frame
C-13
28
Switch - Differential Unlock
D-9
B
Ground Circuits
YL
Flood Lamp - Side
202
BK
XMSN CtrI
611
PU
Head Lamp Hi
276
BK
XMSN CtrI dent Code 0
614
PU
Park/Tail/Dash/Lamp
619
GN
Head Lamp Lo
710
GN
XMSN Speed Pickup Signal
GN
XMSN Shift Sol No. 1 Or 3
Horn - Forward
F-3
16
Switch - Disconnect
C-14
13
F03 Transmission Solenoid E short to battery
Meter - Service
E-10
B
Switch - Flood Lamp
D-8
B
46
646
F03 Transmission Solenoid F short to battery
Motor - Blower
E-4
E
Switch - Forward Horn
E-9
B
277
BK
XMSN Ctrl dent Code 1
47
647
F03 Transmission Solenoid G short to battery
Motor - Blower (Heater Group)
A-10
E
Switch - Fuel Pressure
B-13
13
278
BK
XMSN Ctrl dent Code 2
48
648
F03 Transmission Solenoid H short to battery
Motor - Blower, Defroster
A-11
E
Switch - Head/Tail Lamp
E-8
B
Basic Machine Circuits
52
637
F06 Backup alarm short to ground
Motor - Starter
C-13
5
Switch - Headlamp Dimmer
E-9
B
301
58
688
F06 VHP solenoid short to ground
Motor - Washer, Front Lower
F-6
8
Switch - Inching Pedal Pressure
C-15
14
304
WH GN
668
Stop Lamp Flood Lamp - Rear
609
F03 Transmission Solenoid D short to battery
62
OR GN
Main Chassis
645
668
604 608
BK
644
61
Lighting Circuits
200
45
688
Differential Lock Wiper - Aux (Park)
B-9
44
59
A/C SW To Refrigerant SW
A-7
31.1 ± 2.4
Control Circuits
YL
XMSN Shift Sol No. 2
Electronic Transmission Shift Control
SENR9167
XMSN Shift Sol No. 3 Or 1
755
OR
XMSN Shift Sol No. 4 Or 5
F775
BU
Centershift Solenoid
Starting Motor: (106-8558) Consist No. 106-8557 Consist No. 106-8559
SENR3559 SENR3581
Dual Hp Sol
8
Switch - Key Start
B-9
C
F02 Shift lever input invalid
F-5
8
Switch - Park Brake Pressure
B-11
16
307
OR
308
YL
Main Power Relay Coil
310
PU
Start Aid SW To Start Aid Sol
795
YL
311
WH
Start Aid Sot To Temp SW
F843
YL
Inching Pedal
321
BR
Backup Alarm Lamp Travel Alarm
892
BR
Start Mod Right (-) Port/CAT Data Link (-) Start Mod Right (+) Port/CAT Data Link (+)
9
Switch - Start Aid
E-8
B
Switch - Stop Lamp Pressure
A-2
16
B-11
D
Switch - Tail Lamp
D-8
B
63
269
F00 Sensor supply voltage above normal
64
269
F01 Sensor supply voltage below normal
Motor - Wiper, Aear
65
701
F02 Transmission output speed signal incorrect
Relay - Start
D-13
5
Switch - Transmission Oil Temp Sensor
E-15
26
322
GY
Warning Horn (Forward)
893
GN
68
168
F01 System voltage below normal
Relay - Transmission Action Lamp
C-10
8
Switch - Wiper, Front Lower
A-5
C
326
PU
Key Start SW "C" Term.
900
PU
XMSN Shift Sol No. 5 or 4
71
520
F02 Invalid transmission configuration code
Part No.
Resistor - Blower Speed
A-12
E
Switch - Wiper, Front Upper
B-5
C
901
WH
XMSN Shift Sol No. 6
72
268
F02 Check programmable parameters
2M-9346
Resistor - Blower Speed
E-4
E
Switch - Wiper, Rear
A-5
C
73
764
F05 Transmission indicator lamp open circuit
74
764
F06 Transmission indicator lamp shortto ground
75
764
76
177
77
177
F03 Transmission indicator lamp shortto battery Transmission oil temperture sendershort to F03 + battery or open circuit F04 Transmission oil temperture switchshort to ground
81
868
F05 Auto/Manual lamp open circuit
82
868
F06 Auto/Manual lamp short tc ground
83
868
F03 Auto/Manual lamp short to +battery
Off Machine Switch Specification Actuate
Deactuate
Contact Position
Stop Lamp Pressure
45.0 kPa Max (6.5 psi Max)
5.0 kPa MIN (0.5 psi MIN)
Normally Open
8C-3569
Engine Coolant Temp (Start Aid)
37.8 ± 2.8°C (100 ± 5°F)
26.7°C MIN (80°F MIN)
Normally Closed
107-0611
Engine Oil Pressure
93.00 ± 21.00 kPa (13.49 ± 3.05 psi)
70.00 ± 21.00 kPa (10.15 ± 3.05 psi)
Normally Open
75.0 kPa MAX (10.9 psi MAX)
50.0 kPa MIN (7.3 psi MIN)
Normally Open
640 kPa MAX (92.0 psi MAX)
530 ± 40 kPa (77.0 ± 6.0 psi)
Normally Closed
111-7088 112-2404
Function
Inching Pedal Pressure Brake/Park Brake Air Pressure
Resistor - Blower Speed (Heater Group)
A-10
Machine locations are repeated for components located close together.
E
SENR4130 SENR2082
BU
F-6
D
Alternator (100-5047): Consist No. 100-5045 Consist No. 100-5046
754
Motor - Washer, Rear
C-4
SENR4978 SENR2082 SENR4130
752
Motor - Washer, Front Upper
D-4
Form Number
751
F03 VHP solenoid short to battery
Motor - Wiper, Front Lower
Title Alternator (6N-9294): Consist No. 3T-6352 Consist No. 7N-9720 Consist No. 9G-4574
Starter No. 1 Sol Starter Relay No. 1 Output Starter Relay Coil To Neut Start SW Or Key Start SW Key Start SW To Neutral Start SW
F03 Shift lever open/short to +battery
Related Electrical Service Manuals
BU
306
Motor - Wiper, Front Upper
Printed in U.S.A.
A/C Clutch To Thermostat SW
Control - Transmission
1000 to 1200
Sender - Engine Oil Pressure
4
Control - Neutral Start
Solenoid-Dual HP
116-9937
C-14
34.3 ± 1.7
6.00
Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
1 2
Accessory Circuits (Continued)
Power Circuits
Sender-Engine Oil Pressure
111-0570
F03 Transmission Solenoid A short to battery
RD
1
F06 Transmission Solenoid F short to ground
642
101
C
7T-9074
Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
Description
B-9
646
641
Wire Color
F-15
36
42
11
Wire Number
Description
Alarm - Backup
104-6387
41
B-14
Wire Color
Alarm-Action
F06 Transmission Solenoid E short to ground
F06 Transmission Solenoid H short to ground
Sender - Engine Coolant Temperature
Sender - Articulation
Wire Number
10.0 ± 0.5
F06 Transmission Solenoid D short to ground
648
8
Machine Location 7
Resistor - Defroster
645
38
F-13
Component
Schematic Location C-12
7T-4003
644
F06 Transmission Solenoid G short to ground
24 to 12 volt converter
Machine Location 32
Sender - Engine Coolant
35
647
54°C (130°F) - 560 to 716 110°C (230°F) - 72 to 82
Schematic Location F-9
7N-8532
34
37
Component 12V Power Port
No logged diagnostic codes
22
643
Sender - Articulation Position
No diagnostics active
21
43
Resistance (Ohms)¹
Pin or Socket Number
Wire Description
Component Location
Component Description
200-BK-14
© 2006 Caterpillar All Rights Reserved
Machine Harness Connector And Component Locations
Description
105-9344
Receptacle
26
Ground Connection
CID - FMI
AA 1
325-PK-14
17
Transmission Diagnostic Code Conversion
Component Part Number
Fuse
Wire Color
A
7
Flash Code
Circuit Breaker Symbol
Flow Symbol
Symbols And Definitions
23
32
8
Level Symbol
Monitoring Circuits 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
M917
PK
TOS Sensor
498
WH
Diff Lock Indicator
M918
ON
TOS Sensor
921
WH
XMSN Sol No 1 Or 3 Return
E937
PU
MG MESH CNTL - Redundant Neutral
A = Operator’s compartment (Dash).
A429
YL
Articulation Indicator
B = Operator’s compartment (Steering console).
A476
PU
Eng Oil Press Gauge To Sender - Eng #1
C = Operator’s compartment (Right side console).
B476
BU
(NFND) Transmission Indicator Lamp
E938
OR
MG MESH CNTL - First Gear
D = Operator’s compartment (Headliner).
C491
PU
Park Brake Pressure
E939
WH
MG MESH CNTL - Second Gear
E = Operator’s compartment (Under seat).
E458
YL
Low Air Pressure Lamp
E940
BU
MG MESH CNTL - Third Gear
E459
WH
Low AIr Pressure Alarm
E941
YL
MG MESH CNTL - Fourth Gear
E460
BR
Trans CntI To Relay Coil
E942
GN
MG MESH CNTL - Fifth Gear
F473
YL
Transmission Warning
E943
BR
MG MESH CNTL - Sixth Gear
G460
GN
Transmission Temperature
E944
GY
MG MESH CNTL - Seventh Gear
500
BR
Wiper - Front (Park)
Accessory Circuits
E945
PU
MG MESH CNTL - Eighth Gear
E946
OR
MG MESH CNTL - Forward Direct
501
GN
Wiper - Front (Low)
E947
WH
MG MESH CNTL - Reverse Direct
502
OR
Wiper - Front (HI)
E948
BU
MG MESH CNTL - Park
503
BR
Wiper - Rear (Park)
E949
YL
MG MESH CNTL - Neutral
E975
PU
MESH Lamp
M998
OR
Transmission Autoshift Mode
20 Page
Machine Location
SENR9149-03
Schematic Location
Connector Number
6
BACKUP ALARM 123-6449
RR POS NEG
12V BATTERY 3T-5760
Y
RD-00
LLL
BK-6 200-BK-10
LLL
LL UU
L29 L36 AAA 200-BK
L52
A
REAR FRAME
PK GY BU WH RD BK BR PU
B FUEL SW 107-0611
AAA
FRONT FRAME
L54
E
7 6 4 2 1 5 3
921-WH 614-PU 604-OR 321-BR 556-WH 200-BK
CONN 12
L69
L50
200-BK 614-PU 604-OR
L50
STOP/TAIL LAMP 8C-6207
S T G
RD WH BK
1 3 2
CCC 604-OR 614-PU 200-BK
REAR FLOOD LAMP 9X-6775
608-GN 200-BK
Y
BK BK JJJ HH 1 608-GN 2 200-BK
1 2
PARK
BK-18 BK-18
T B+
L36 L29
E460-BR 308-YL F743-YL
A
C491-PU 200-BK
308-YL
4 1 2 3
H BK GN GY BR OR
H 1 3 4 2
504-YL 119-PK 503-BR 505-BU
L41
RD BK
BULB 9X-7849
200-BK
T COOLANT SW 8C-3569
REAR DEFROSTER 9X-9657
A507-YL 200-BK
DUAL HORSEPOWER SOLENOID 111-0570 AAA 2 BK 921-WH 1 BK 795-YL
AAA 1 311-WH 2 200-BK
U
H
HEATER GP
BLOWER 9X-0343 1 2
RD BK
RESISTOR 9G-1950
MOTOR
H RESISTOR 7T-4003 H
CONN 7
L41
A504-GN A507-YL 200-BK 504-YL 119-PK 503-BR 505-BU 603-PK
U 124-RD L42
L20
200-BK 614-PU
CONN 13
124-RD 521-YL 515-GY 516-GN 517-BU
14
13
12
L18 L21
3 5 1 4 2
BLOWER 9X-9363 X 522-WH
515-GY 200-BK
1 2
WH/RD-14 BK-14
MOTOR
G
PANEL LAMP 8D-1429 BASE 200-BK 7G-9730 614-PU
L20
11
L71 L43
CONN 28
GGGG
10
K
152-BU 576-PK 577-PU 575-YL 507-WH 578-BU 506-PU 614-PU 135-BU
A
3 1 2 4 6 7 5 8 9
K
152-BU 576-PK 577-PU 575-YL 507-WH 578-BU 506-PU
200-BK 200-BK
L19
L19
BK 1 3 4 2
501-GN 118-GY 500-BR 502-OR
200-BK L14 L71
L71
U 2
3 U
101-RD
L7
CONN 29
BAT + GROUND SOL 1 OUTPUT SW 2 INPUT SW 1 INPUT SOL 2 OUTPUT
1 2 3 4 5 6
L46
A
CONN 23
E975-PU M998-OR 795-YL
202-BK F F 1 202-BK 2 276-BK 202-BK 3 277-BK 202-BK 4 278-BK 202-BK 202-BK 202-BK 202-BK
CONN 19 SERVICE TOOL CONNECTOR 9W-1951
G
G
SHIFT CONSOLE
9
G
4 5 6 7 1 2 3 1 2 3 4 5 6 7 8 9 10
F
F
321-BR
202-BK 202-BK 202-BK 307-OR 307-OR 306-GN 308-YL 308-YL 308-YL 308-YL 308-YL
CONN 18 202-BK 308-YL 892-BR 893-GN E947-WH E948-BU E949-YL E937-PU E938-OR E939-WH E940-BU E941-YL E942-GN E943-BR E944-GY E945-PU E946-OR
OPERATOR STATION
WIRE GROUP COLOR DESCRIPTIONS
PARK
WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS OFF. WIRES THAT HAVE SYSTEM VOLTAGE WHEN THE KEY SWITCH IS ON. VOLTAGE CONVERTER OUTPUT CIRCUIT. STARTING CIRCUIT. GROUND CIRCUIT. STARTING AID CIRCUIT. MONITOR CIRCUIT. (VIMS) / (CMS) / (EMS) / (OTHER) TRANSMISSION CONTROL CIRCUIT. HEATER AND AIR CONDITIONER CIRCUIT. WIPER/WASHER CIRCUIT.
L76
101-RD
10A
L L L L L L L
UPPER WIPER/WASHER
118-GY
LOWER WIPER/WASHER
152-BU 119-PK
REAR WIPER/WASHER FRONT DEFROSTER REAR DEFROSTER
141-PK 151-GN
108-BU
DOME LAMP BEACON
LO
A
BK 1 3 4 2
GN GY BR OR
L14
L19
J2 11 7 8 1 2 3 29 18 23 28 40 37 12 10 19 20 25 4 5 6 17 9 22 15 24 26 27 14 21 30 31 32 33 34 35 36 13 38 39 16 F
J1 SOL RTN 7 INCH PEDAL 921-WH SOLENOID 1 10 751-GN SOLENOID 5 SOLENOID 2 4 752-YL SOLENOID 7 SOLENOID 3 17 754-BU SOLENOID 6 SOLENOID 4 11 755-OR SOLENOID 8 28 SOL RTN 33 TOS + INP TRANS TEMP 36 TOS - INP 15 202-BK 16 EMS OUT 27 308-YL 14 BU ALARM +BATTERY 40 308-YL +BATTERY 1 308-YL 308-YL +BATTERY 6 GROUND 2 202-BK 202-BK GROUND 5 KEY START SW. 34 307-OR A/M LAMP 12 M998-OR 795-YL VHP SOL 8 TRANS LAMP 18 E975-PU 32 DIA CODE 1 21 277-BK DIA CODE 0 22 276-BK DIA CODE 2 38 278-BK 892-BR CAT LINK - 3 CAT LINK + 9 893-GN RED NEUTR 26 E937-PU FIRST 30 E938-OR SECOND 24 E939-WH THIRD 20 E940-BU FOURTH 29 E941-YL FIFTH 35 E942-GN SIXTH 23 E943-BR SEVENTH 19 E944-GY EIGHTH 13 E945-PU FORWARD 39 E946-OR REVERSE 31 E947-WH PARK 25 E948-BU NEUTRAL 37 E949-YL F E948-BU TRANSMISSION CONTROL E949-YL 132-2148 (MANUAL ONLY) 307-OR 306-GN 306-GN
CONN17
144-GN 614-PU 200-BK
614-PU 200-BK
L 2 L
118-GY 118-GY
L 5
H L20
2 7 5 3 6 1 8 4
L 200-BK A507-YL A504-GN 603-PK 119-PK 505-BU 503-BR 504-YL
584-YL 141-PK
HI
L7
502-OR
L8 REAR DEFROST SW 9X-9638
501-GN
3 L 584-YL 4 A504-GN L 6 A507-YL
1
3 L 584-YL 4 A503-PK L 6 A506-OR
L H
L L
L9
L11
152-BU 152-BU
577-PU
L H
576-PK
L L
LOC
01 00 00 00 00 00 02 01 00
(PLATFORM) (ENGINE) (RADIATOR GRILL) (R FRAME) (R FRAME-TRANS) (XSMN CONSOLE) (CAB-REAR) (STEERING CONSOLE) (CAB-FRONT)
L M N P FFF U V X Y FFFF AA CC JJJ HH
142-0732 142-7533 137-1120 127-1036 127-1030 143-3580 104-8588 124-1429 144-0382 142-8470 115-9446 101-8190 101-8192 101-8193
00 01 02 00 01 01 02 00 00 02 00 02 01 03
180 (SW PANEL) 160 (GAUGE CONSOLE) 270 (TRANSMISSION) 100 (HEADLIGHTS-BAR) 183 (CAB FUSE PANEL) (XSMN CONSOLE-SWITCHES) 171 271 (TRANS SPEED SENDER) 154 (HEATER GP) 230 (FUEL TANK) 121 (FORWARD HORN) 141 (HEADLAMP BREAKER) 106 (BLADE FLOOD LAMP) 205 (REAR FLOOD LAMP) (REAR FLOOD LMP-FUEL TNK)206
WIRE NN GGGG LL
AS. 00 116-2145 00 139-0071 9F-4337 07 07
143 (HORN SWITCH) (FUSE TO CIGAR LIGHTER) (START MTR TO ENGINE)
00 00 00 00 03 00 02
NOTE
LEVEL
(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)
120 220 203 201 202 170 182 140 181
ATCH ATCH ATCH ATCH ATCH
D
ATCH ATCH ATCH ATCH ATCH
210 211 212 213 214 204 105
439-YL 113-RD
L71
W FRONT UPPER WIPER SW 3T-6655
L
1 2
CC 609-YL 200-BK
1 2
GN GN
A F775-BU 200-BK
2 1 4 3
WH-18 WH-18
CONN 33
A P L
COMPONENTS ARE SHOWN INSTALLED ON A FULLY OPERABLE MACHINE WITH THE KEY AND ENGINE OFF AND XMSN SHIFTER IN NEUTRAL
1 4
2 3
UNLESS OTHERWISE SPECIFIED: ALL WIRES IN A SPLICE ARE THE SAME IDENT. NUMBER, COLOR, AND 16 GAUGE
WH-18 WH-18
BLADE FLOOD LAMP 9X-6775 CENTERSHIFT SOLENOID 8T-8808
L
B B 114-RD 322-GY P L
A
1 2
200-BK 200-BK
FORWARD HORN SOLENOID 7T-9074 NOTE E
GN GN
W FRONT LOWER WIPER SW 3T-6655
L 505-BU
L
H
619-GN 200-BK
L
B B E458-YL E458-YL
L3 L10
504-YL
CONN 30 CAB SWITCH AND FUSE PANEL
L L
P W L REAR WIPER SW 3T-6655
A E458-YL 1 2 200-BK
BK-18 BK-18
A E458-YL 1 2 200-BK
BK-18 BK-18
A
L18 L5
5
4
3
130-RD 604-OR
1 2
BK-18 BK-18
BRAKE AIR SW 112-2404
L1
L1
611-PU 200-BK
119-PK 119-PK
119-PK 119-PK
503-BR 507-WH
6
PART NO. CHG
HARNESS AS. A 141-5445 AAA 143-2440 CCC 144-0373 E 144-0383 F 145-5999 G 142-5835 H 101-8161 J 142-0776 K 142-0731
THIS IS THE SCHEMATIC FOR THE 12H,140H, AND 160H STANDARD SERIES MOTOR GRADER (145-5121 CHG 01)
CENTERSHIFT INDICATOR SW 3E-9367
L L B B
575-YL 578-BU
L10
200-BK 200-BK 200-BK
L20
7
E
C
L5
8
RED WHITE ORANGE YELLOW PINK BLACK GRAY PURPLE BROWN GREEN BLUE
ATCH WIRE, CABLE & COMPONENT CIRCUIT GROUPING DESIGNATION
CABLE AS. KKK 116-9981 RR 145-8713 LLL 5C-6793 TT 139-0250 UU 061-7661 VV 7G-1060 MMM 1S-2342
A
500-BR 506-PU
1
FRONT DEFROST SW 9X-9638
RD WH OR YL PK BK GY PU BR GN BU
PARK
L13
L7
BEACON SW 9X-9639 3 L 603-PK
584-YL 151-GN L 614-PU 200-BK L 2
T B+
CONN 32
L
144-GN
L
L 5
MOTOR
K
L
L
L 2
GND
FRONT LOWER WIPER 9X-3392
L7
L71
CONN 24
307-OR 202-BK 306-GN E949-YL E948-BU 306-GN
4K-5122 HOLDER AS. 3K-8782 FUSE
FFF 10A FFF 10A FFF 10A FFF 10A FFF 10A L 101-RD 10A
L62
K
CONN 31
FFF K
921-WH 202-BK 202-BK 202-BK
MOTOR
T B+
GN GY BR OR
HI
A L7
101-RD-10
F843-YL 900-PU 902-BR 901-WH 903-GY 921-WH M917-PK G460-GN M918-GN E460-BR
GND
L76
576-PK 152-BU 575-YL 577-PU
L18
135-BU
101-RD-10
604-OR 321-BR
F
609-YL
A506-OR A503-PK L62 L16 108-BU 200-BK
L65
L25
200-BK 200-BK
614-PU 614-PU 614-PU
E458-YL E458-YL L3 L71
U
CENTERSHIFT PIN SW 9X-9634 200-BK
TRANSMISSION DIRECTION AND SPEED SW. 8C-5337
BLOWER SW 6P-3236
X
614-PU 200-BK 165-RD F775-BU
NEUTRAL START CONTROL 117-9364
129-BU 200-BK U
1 2 5 4 3
200-BK
F
24V CIGAR LIGHTER 9W-0335
8C-9787
L20
15
10A
PANEL LAMP (SHIFT LEVER) 7N-5876 NOTE B 200-BK 200-BK 200-BK
614-PU 614-PU
L42
CIGAR LIGHTER
L41
L41 200-BK 603-PK
101-RD
PARK BRAKE SOLENOID 7T-9074
CONN 21
OFF C U ON S U ST B U
L42
2 1
H
L43
U
U
R U
GN GN
1 2
A
308-YL E459-WH
KEY START SW 9G-7641
A
START AID SOLENOID 9G-4365
1 2
U
U
CONN 20
PARK BRAKE PRESS SW 112-2404 308-YL 200-BK
L36
U
200-BK
BK-18 BK-18
1 2
L26
L43
ACTION ALARM 9G-9813
L53
K
CAB GROUND
200-BK 200-BK
L7
L36
F743-YL L6 308-YL 308-YL 308-YL 308-YL
L29
L53
BEACON 9X-9556
311-WH 310-PU
921-WH 614-PU 604-OR 321-BR 556-WH 200-BK 200-BK
CONN 8
COOLANT TEMP SENDER 7N-8532
HH Y 1 608-GN 2 200-BK
GND
MOTOR
A
T
CONN 6
LO HI
AAA A476-PU
ENGINE OIL PRESSURE SENDER 116-9937
AAA 441-OR
A 326-PU 311-WH E458-YL 441-OR A476-PU E459-WH 795-YL 921-WH
REAR WIPER 9X-3392
200-BK
310-PU 311-WH
BK BU
L51
L54
1 2 3 4 5 7 6 8 9 10
VV
2 1 3 8 5 6 4 7
101-RD 124-RD 200-BK 614-PU
L55
L55
L54
L26
L7
A L56
L56
CONN 9 AAA
4
VV
ZZ
ZZ FRONT FRAME
LO
K
FRONT UPPER WIPER 9X-3392
A
TRANSMISSION ACTION LAMP RELAY 106-9188
L51
2 1
113-RD 439-YL
L43
REAR FRAME A Y 2 306-GN 3 310-PU 6 311-WH 1 403-GN 4 608-GN 5 202-BK
200-BK-8 200-BK
200-BK-8
A
K
L46
200-BK
E458-YL E459-WH
L38
ELECTRICAL CONNECTION TO MACHINE STRUCTURE INTERNAL ELECTRICAL CONNECTION TO SURFACE OF COMPONENT CONNECTOR
CONN 27
308-YL L7 L36
CIRCUIT NOT CONNECTED
4
L63 L44 306-GN 795-YL 326-PU E459-WH
CIRCUIT CONNECTED
L76
L63
L7 L36
ENGINE
200-BK-4
STEERING CONSOLE
L7
REAR FRAME
TT KKK 12V BATTERY NEG POS 3T-5760
L62
L71
L38
BLADE FLOOD LAMP 9X-6775
A CC 609-YL 609-YL 1 200-BK 200-BK 2
COLOR
ABBREV
OPERATOR STATION
TT
RR
BK-00
BK-00
RD-00
BK-00
C
UU
L4
DESCRIPTION
BLADE, SPADE, RING, OR SCREW TERMINAL
200-BK 200-BK
L76
L21
L38
611-PU
L62
L4
200-BK-6 202-BK
165-RD 165-RD 200-BK 200-BK 200-BK
L1
L21
439-YL
AAA DISCONNECT SW 7N-0718
200-BK 200-BK
L63
RD-00
P
200-BK 200-BK
200-BK
KKK
HI BEAM HEADLAMP 9X-7170
SYMBOL
CONN 34
200-BK 200-BK 200-BK 200-BK
MOTOR
P
IDENT
L62
FRONT FRAME
L67
200-BK 200-BK 611-PU
L#
L13
AAA
A 1 A429-YL 2 200-BK
C'SHIFT PIN INDICATOR M LAMP 7N-5876 NOTE B
118-GY 118-GY
MTR BAT
614-PU
ART SENDER 3E-5383
301-BU-10 304-WH-10 AAA 101-RD-4 A
FFFF
CONN 35
P
614-PU 614-PU
L8
INCHING PEDAL PRESSURE SW (TRANSMISSION) 111-7088
S
FORWARD HORN 7T0969 NOTE E
LO BEAM HEADLAMP 9X-7169
LAMP 7N-5876 NOTE B
M
10 7 8 6 4 3 5 9 1 2
G
R/S SYSTEM AIR PRESS GAUGE 1W-3306
M
M
L21
200-BK 200-BK 200-BK 200-BK-6
L22
CONN 16
FFFF
F
619-GN
P
101-RD 507-WH 578-BU 506-PU 118-GY 501-GN 500-BR 502-OR 614-PU 200-BK
STARTER 106-8558
L63
HI BEAM INDICATOR 7N-5876 NOTE B
M
200-BK
BLADE FLOOD LAMP SW 123-5849 NOTE F
556-WH 498-WH
1
LAMP 7N-5876 NOTE B
M
L9
F843-YL 202-BK
L56
L23
3
M
L11
200-BK-4
L56
L67
L67
L55
L22
L/S SYSTEM AIR PRESS GAUGE 1W-3306
614-PU 614-PU
FLOOD LAMP SW 9X-9632 NOTE G
DIFFERENTIAL UNLOCK SW 123-5862
3J
609-YL 608-GN
M
M
1 5 4 6 3 2 7
AAA
L55
AAA 200-BK-10 301-BU-10 GND AAA START
6
J
J
PARKING BRAKE LAMP 7N-5876 NOTE B
108-BU A503-PK A506-OR 152-BU 576-PK 575-YL 577-PU
Y
614-PU 200-BK 200-BK
J 5
2
RESISTOR 7T-4003
152-BU 152-BU
CONN 10
J 614-PU 614-PU 200-BK 200-BK J 165-RD 2 J 614-PU 200-BK
3 4
M
M
FFFF 114-RD 322-GY
619-GN 200-BK
K
K
119-PK
STD Y ATCH
L24
J 2
A506-OR
VOLTMETER
119-PK
109-OR-4
403-GN 310-PU 200-BK 105-RD 130-RD 124-RD 113-RD 165-RD 608-GN 609-YL
116-RD
1 J 609-YL
M
M
1 2
611-PU 619-GN 200-BK
CONN 36
CONN 26
101-RD 101-RD 101-RD 101-RD 101-RD
Y
10 9 8 1 3 2 4 6 5 7
200-BK 200-BK
614-PU
4 1 2 5 3 6 7
M
200-BK 200-BK
+
SHUTDOWN SOL AAA 8C-3663 STOP 326-PU
J
149-RD
3 J
A
M
604-OR 130-RD
ALT
A
101-RD-4
614-PU 200-BK
L23
GRD
200-BK 200-BK 200-BK
AIR PRESSURE LAMP 7N-5876 NOTE B
COLD TEMP LAMP 7N-5876 NOTE B
TRANS ACTION LAMP 7N-5876 NOTE B
L5
ALTERNATOR 6N-9294 35A 100-5047 50A
R
Y 40A ALTERNATOR BREAKER 2H-1507 STD 9S-0174 ATCH 60A
CONN 15
A
114-RD 103-RD 149-RD 116-RD 165-RD 113-RD 124-RD 130-RD 105-RD
614-PU
TAIL LAMP SW 3E9319
J 2
A476-PU 200-BK 614-PU 611-PU E975-PU 498-WH M998-OR
439-YL 611-PU E975-PU
J J
614-PU 308-YL F743-YL
9 3 2 7 1 5 8 6 4
M
L18
Y
101-RD-4
J 1 101-RD-10
HORN TAIL LAMPS BLADE FLOODS REAR FLOODS DIFF LOCK GAUGES HEATER STOP LAMPS KEY START SW
IGN SEND
GRD
200-BK 200-BK 200-BK 200-BK
P
L62
CONN 11
Y 109-OR-4
Y
A
J J J J J J J J J
J
441-OR A429-YL F473-YL E458-YL 308-YL C491-PU 439-YL
101-RD-4 101-RD-10
CONN 1
304-WH-10
103-RD
6
J
A
F843-YL 900-PU 902-BR 901-WH 903-GY M917-PK G460-GN M918-GN 751-GN 752-YL 754-BU 755-OR 921-WH 308-YL 202-BK
F
Y
3K8782 FUSE (10A) 8M8948 FUSE (15A) FUSE BLOCK 10A 9G-0747 10A 10A 10A 10A 10A 15A 10A 10A 101-RD-10
J
3 J 619-GN 4 614-PU
J 5
200-BK A429-YL C491-PU A476-PU 441-OR E458-YL
L26
1 2
Y
L54
AA
J 2
L6
202-BK
202-BK E975-PU 321-BR 795-YL 306-GN 307-OR 308-YL E460-BR
109-OR-10
L38
614-PU 200-BK
BK BK
L54
START RELAY 3E-7279
M918-GN M917-PK
L53
HEADLAMP/ TAIL SW 1 3E-9317
D E A B C F G H J
F
Y
893-GN 892-BR 308-YL 202-BK
M917-PK AND M918-GN ARE TWISTED PAIR
1 4 3 2
103-RD 614-PU 200-BK
614-PU 200-BK
105-RD 307-OR 326-PU 308-YL E459-WH F775-BU 165-RD
V
HEADLAMP DIMMER SW 103-5678 619-GN
1 2 3 4 5 6 7
M917-PK AND M918-GN ARE TWISTED PAIR
M918-GN M917-PK
J
308-YL 326-PU 307-OR 105-RD
1 2
B
J 2 611-PU
J
BLOWER 9X-0343 K MOTOR A506-OR 1 RD 200-BK 2 BK
200-BK
L25 202-BK 306-GN
N 903-GY 921-WH
L65
CONN 14
310-PU 306-GN 326-PU 795-YL E459-WH
1 2
L56
902-BR 921-WH
1 2
CONN 25 L24
614-PU 614-PU 200-BK 200-BK 102-BU
FRONT DEFROSTER 9X-9657
310-PU
103-RD
619-GN
CONN 2
N 1 2
HEADLAMP BREAKER 3T-2662
E937-PU E938-OR E939-WH E940-BU E941-YL E942-GN E943-BR E944-GY E945-PU E946-OR E947-WH E948-BU E949-YL 202-BK
901-WH 921-WH
1 2
1
L46
IGN SEND
ENGINE OIL PRESSURE
200-BK 200-BK
RED NEUT FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH FORWARD REVERSE PARK NEUTRAL GROUND
900-PU 921-WH N
M917-PK AND M918-GN ARE TWISTED PAIR
L46
3 J
M
(24 V) (12 V)
LAMP 8M-6176
1 2 3 4 5
GRD
498-WH 200-BK
498-WH 556-WH 308-YL 322-GY 114-RD 611-PU 619-GN 614-PU
HORN SW 116-2145
A476-PU 200-BK
START AID SW 123-6375
GRD
614-PU 200-BK
200-BK
614-PU J 200-BK J J 2 308-YL
DIFF UNLOCK LAMP 7N-5876 NOTE B
SEND
M
J
CONN 22
(24 V) (12 V)
A
IGN
SEND
C491-PU 308-YL
+ SIG J
308-YL 308-YL 308-YL
N
751-GN 921-WH 752-YL 754-BU 755-OR 900-PU 921-WH 901-WH 902-BR 903-GY
101-RD
1 9 2 3 4 5 10 6 7 8
755-OR 921-WH
F843-YL 202-BK
20 Page, Color 2
J
SERVICE METER 3E-9359
ARC SUPPRESSOR 106-8704
403-GN
SENR9149-03
A429-YL
15A
N
TRANS SPD SENDER 104-6387
A
441-OR 614-PU
WH RD OR PU GN GY PK YL BK
611-PU 619-GN 114-RD 322-GY
ARTICULATION
IGN
614-PU 614-PU
101-RD
GAUGE CLUSTER 127-8314 1 8 6 4 3 9 7 5 2
308-YL
A
8 7 1 2 3 5 6 4 L65
J 2 1 322-GY
403-GN
200-BK A429-YL
NN
24 23 22 21 20 19 18 17 16 15 1 3 4 5 6 7 8 9 10 11 12 13 14 2
BK-18 WH-18
L54
COOLANT TEMP
M
F
N
V
D
L54
L12
609-YL
135-BU 200-BK
1
L21
L65
J
202-BK G460-GN 308-YL
754-BU 921-WH
L21
L16
614-PU 614-PU 614-PU 609-YL
CONN 37
608-GN A429-YL A476-PU E458-YL 441-OR C491-PU
102-BU 101-RD
SOL 8 127-0574
403-GN
200-BK
SOL 7 127-0574
105-8827 DIODE AS. E MUR440 1 556-WH 2 200-BK
A429-YL 200-BK 403-GN 608-GN 441-OR A476-PU E458-YL
1 2
2
L76
INSTRUMENT PANEL
12V POWER PORT 117-2311
L12
200-BK
N
L76
200-BK 200-BK 200-BK 200-BK 200-BK
200-BK 200-BK 200-BK
200-BK 611-PU
L16
101-RD-4 101-RD-10
SOL 6 127-0574
1 2
L55
GN GN
1 2
L46
L46
752-YL 921-WH
1 2
507-WH 200-BK
+
E458-YL 308-YL
3 1 108-BU 2 200-BK K
556-WH
SOL 5 127-0574
556-WH 200-BK
CONN 3
200-BK L55
200-BK
101-RD-4
SOL 4 127-0574
-
E975-PU 200-BK
WH RD BK
N
1 2
MOTOR
507-WH 506-PU 578-BU
135-BU 200-BK
614-PU
NNN NNN F A 126-PK A 308-YL B 202-BK B 202-BK C G460-GN C G460-GN
751-GN 921-WH
1 2
REAR WASHER 7T-8891
A
-
609-YL
L12
L65
165-RD 165-RD
DOME LAMP 8C-9678
2 1
SOL 3 127-0574
+
L16 L12
PP
L69
L69
E
N
1 2
MOTOR
L21
L65
200-BK 200-BK 135-BU
L67
TRANSMISSION OIL TEMP SENS 3E-8700 OR-18 V+ BK-18 GROUND YL-18 SIGNAL
SOL 2 127-0574
A
F473-YL 200-BK
L51
6 3 5 4 1 2
DIFFERENTIAL UNLOCK SOLENOID 7T-9073
SOL 1 127-0574
FRONT UPPER WASHER 7T-8891
A
135-BU 200-BK
GROUND + BATTERY GROUND (RADIO) +12V RADIO +24V IN +12V MEMORY
L69
L16 L12 L65
609-YL 308-YL 556-WH
1 2
+
200-BK 200-BK
DD HH 1 608-GN 2 200-BK
200-BK 200-BK 556-WH
L50
E
-
A L16
A
921-WH 921-WH 921-WH
200-BK
604-OR 614-PU 200-BK
CONN 5
608-GN 200-BK
L51
L50
REAR FLOOD LAMP 9X-6775
L51
24 TO 12 VOLT CONVERTER 119-1733
202-BK 202-BK 202-BK
CCC 604-OR 614-PU 200-BK
2 3 4 5 1 6 7
E
202-BK 306-GN 307-OR 308-YL 921-WH 321-BR 795-YL E460-BR M998-OR E975-PU
1 3 2
RD WH BK
CCC 604-OR 614-PU 321-BR 921-WH 200-BK
2 6 4 1 9 3 7 8 10 5
S T G
MOTOR
3
200-BK
CONN 4
202-BK 306-GN 307-OR 308-YL 921-WH 321-BR 795-YL E460-BR M998-OR E975-PU
STOP/TAIL LAMP 8C-6207
A
4
A
439-YL 200-BK
CCC 1 321-BR 2 921-WH
BK BK
F
FRONT LOWER WASHER 7T-8891
5 A
619-GN
7
611-PU
8
619-GN 611-PU
9
L2
10
L2
11
611-PU 619-GN
12
200-BK
13
614-PU 200-BK
14
M
15
P P
P P
HI BEAM HEADLAMP 9X-7170
LO BEAM HEADLAMP 9X-7169
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAUGE NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE NOTE B: TERMINAL 3T-3157 SPRING 3T-3159 SOCKET 3T-3158 CONTACT 6D4161 BOOT 3T-3278 NOTE C:TRANSMISSION SHIFT LEVER LOGIC TABLE: TO 24V OUTPUTS GND SOLENOIDS S B D W/ SOL NEU GEAR 1 2 3 4 5 6 7 8 T U HP AWD RET PARK N 1F 2F 3F 4F 5F 6F 7F 8F 1R 2R 3R 4R 5R 6R NOTE D: THE FOLLOWING WIRES MUST BE TWISTED AT LEAST 1 TURN / 25 MILLIMETERS 710-GN & 202-BK: 892-BR & 893-GN NOTE E: ONLY ONE FORWARD HORN SHOULD BE INSTALLED NOTE F: WITH FRONT FLOOD LAMPS ONLY USE SWITCH 123-5849 NOTE G: FRONT FLOOD LAMPS AND REAR FLOOD LAMPS USE SWITCH 9X-9632
BRAKE AIR SW 112-2404
A
A
STOP LAMP SW 2M-9346
2
B
1
A
