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INTERACTIVE SCHEMATIC Bookmarks
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Information Component Table Tap Table Fluid Power Symbols Electrical Symbols
Schematic Machine Views Front Frame Rear Frame Tap Views
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E-C60 E-C61
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EC-C1
VIEW ALL CALLOUTS
When only one callout is showing on a machine view this button will make all of the callouts visible. This button is located in the top right corner of every machine view page.
HOTKEYS (Keyboard Shortcuts)
FUNCTION Zoom In Zoom Out Fit to Page Hand Tool Find
KEYS “CTRL” / “+” “CTRL” / “-” “CTRL” / “0” (zero) “SPACEBAR” (hold down) “CTRL” / “F”
SENR9149-03 March 2006
12H, 140H, and 160H Motor Grader Standard Version Electrical System 12H: 4ER500-1135
140H: 8JM280-UP 5HM1150-2999
© 2006 Caterpillar, All Rights Reserved
160H: 9JM350-UP 2FM400-908
Printed in U.S.A.
COMPONENT LOCATION Component 12V Power Port
Schematic Location F-9
Machine Location 32
Component Sender - Articulation
Schematic Location C-12
Machine Location 7
24 to 12 volt converter
F-13
8
Sender - Engine Coolant Temperature
B-14
11
Alarm-Action
B-9
C
Sender-Engine Oil Pressure
B-13
13
Alarm - Backup
F-15
1
Sender- Transmission Speed
D-15
14
Alternator
D-14
2
Solenoid-Centershift
B-3
16
Arc Suppressor
E-14
17
Solenoid - Differential Unlock
E-14
17
Battery 1
C-14
3
Solenoid-Dual Horsepower
A-13
5
Battery 2
C-14
4
Solenoid - Engine Shutdown
D-13
5
Breaker - Alternator
D-13
5
Solenoid - Forward Horn
A-3
16
Breaker - Headlamp
D-10
B
Solenoid - Park Brake
B -12
16
Control - Neutral Start
B-9
10
Solenoid - Start Aid
A-13
18
Control - Transmission
A-7
E
Solenoids - Transmission Valves
E-15
14
Control - XMSN Direction and Speed SW
A-9
C
Switch - Beacon
B-6
C
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
Ground - Engine
C-13
12
Switch - Centershift Pin
B-9
C
Ground - Frame Cab
D-5
24
Switch - Coolant Temp (Start Aid)
A-14
11
Ground - Front Frame
D-6
21
Switch - Defrost, Front
A-6
C
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
Horn - Forward
F-3
16
Switch - Disconnect
C-14
13
Meter - Service
E-10
B
Switch - Flood Lamp
D-8
B
Motor - Blower
E-4
E
Switch - Forward Horn
E-9
B
Motor - Blower (Heater Group)
A-10
E
Switch - Fuel Pressure
B-13
13
Motor - Blower, Defroster
A-11
E
Switch - Head/Tail Lamp
E-8
B
Motor - Starter
C-13
5
Switch - Headlamp Dimmer
E-9
B
Motor - Washer, Front Lower
F-6
8
Switch - Inching Pedal Pressure
C-15
14
Motor - Washer, Front Upper
F-6
8
Switch - Key Start
B-9
C
Motor - Washer, Rear
F-5
8
Switch - Park Brake Pressure
B-11
16
Motor - Wiper, Front Lower
C-4
9
Switch - Start Aid
E-8
B
Motor - Wiper, Front Upper
D-4
D
Switch - Stop Lamp Pressure
A-2
16
Motor - Wiper, Aear
B-11
D
Switch - Tail Lamp
D-8
B
Relay - Start
D-13
5
Switch - Transmission Oil Temp Sensor
E-15
26
Relay - Transmission Action Lamp
C-10
8
Switch - Wiper, Front Lower
A-5
C
Resistor - Blower Speed 1
A-12
E
Switch - Wiper, Front Upper
B-5
C
Resistor - Blower Speed 2
E-4
E
Switch - Wiper, Rear
A-5
C
Resistor - Blower Speed (Heater Group)
A-10
E
Machine locations are repeated for components located close together. A = Operator’s compartment (Dash). B = Operator’s compartment (Steering console). C = Operator’s compartment (Right side console). D = Operator’s compartment (Headliner). E = Operator’s compartment (Under seat).
CONNECTOR LOCATION Schematic Location
Machine Location
CONN 1
D-15
26
CONN 2
E-15
26
CONN 3
E-15
31
CONN 4
F-14
22
CONN 5
F -14
22
CONN 6
A-14
5
CONN 7
A-14
30
CONN 8
B-13
29
CONN 9
B -13
29
CONN 10
D-13
29
CONN 11
D-13
29
CONN 12
B-12
25
CONN 13
A-11
C
CONN 14
B 23
CONN 16
D-10 D-10 D-10
CONN 17
A-9
10
CONN 18
10
CONN 19 Service Tool
A-9 A-9
CONN 20
B-9
25
CONN 21
B-9
25
CONN 22
E-9
23
CONN 23
B-8
10
CONN 24
B-8
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
CONN 30
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
Connector Number
CONN 15
23
C
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.
CID / MID / FMI Transmission Diagnostic Code Conversion Flash Code
CID - FMI
11
N/A
12
N/A
Description No diagnostics active 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 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
SPECIFICATIONS AND RELATED MANUALS
Related Electrical Service Manuals Title
Form Number
Alternator (6N-9294): Consist No. 3T-6352 Consist No. 7N-9720 Consist No. 9G-4574
SENR4978 SENR2082 SENR4130
Alternator (100-5047): Consist No. 100-5045 Consist No. 100-5046
SENR4130 SENR2082
Electronic Transmission Shift Control
SENR9167
Starting Motor: (106-8558) Consist No. 106-8557 Consist No. 106-8559
SENR3559 SENR3581
Resistor, Sender and Solenoid Specifications Part No.
Component Description
Resistance (Ohms)¹
3E-5383
Sender - Articulation Position
3 to 97
7N-8532
Sender - Engine Coolant
7T-4003
Resistor - Defroster
10.0 ± 0.5
7T-9073
Solenoid - Differential Unlock
33.6 ± 1.0
7T-9074
Solenoid - Forward HornPark Brake
8C-3663
Solenoid - Engine Shutdown Latch: Unlatch:
8T-8808
Solenoid - Centershift
9G-1950
Resistor-Blower Speed
9G-4365
Solenoid - Start Aid
104-6387
Sender - Transmission Speed
111-0570
Solenoid-Dual HP
116-9937
Sender - Engine Oil Pressure
127-0574
Solenoid - Transmission
54°C (130°F) - 560 to 716 110°C (230°F) - 72 to 82
55.17 ± 5.77
1.55 ± 0.1510.3 ± 1.03
34.3 ± 1.7 Overall 2.00 ± .10 Tap 1.00 ± .05 6.00 1000 to 1200 31.1 ± 2.4 21.5 - 49.5 @ 552 kPa (80.1 psi) 227 - 257 @ 21 kPa (3.0 psi) 31 ± 3
¹ At room temperature unless otherwise noted.
Off Machine Switch Specification Part No.
Function
Actuate
Deactuate
Contact Position
5.0 kPa MIN (0.5 psi MIN)
Normally Open
2M-9346
Stop Lamp Pressure
45.0 kPa Max (6.5 psi Max)
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
111-7088
Inching Pedal Pressure
75.0 kPa MAX (10.9 psi MAX)
50.0 kPa MIN (7.3 psi MIN)
Normally Open
112-2404
Brake/Park Brake Air Pressure
640 kPa MAX (92.0 psi MAX)
530 ± 40 kPa (77.0 ± 6.0 psi)
Normally Closed
HARNESS and WIRE Electrical Schematic Symbols Symbols
T
Pressure Symbol
Temperature Symbol
Level Symbol
Circuit Breaker Symbol
Flow Symbol
Symbols and Definitions 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.
T
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 and Wire Symbols Wire, Cable, or Harness Assembly Identification: Includes Harness Identification Letters and Harness Connector Serialization Codes (see sample).
Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...) Harness Connector Serialization Code: The "C" stands for "Connector" and the number indicates which connector in the harness (C1, C2, C3, ...).
L-C12 3E-5179
AG-C4 111-7898
L-C12 3E-5179
1
Part Number: for Connector Plug
Part Number: for Connector Receptacle
2 Plug
Receptacle Pin or Socket Number
5A
1 2
Deutsch connector: Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
1 2
Sure-Seal connector: Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
Fuse (5 Amps)
9X-1123
Component Part Number
325-AG135 PK-14 Harness identification code: This example indicates wire group 325, wire 135 in harness "AG".
Wire Gauge Wire Color
6
135-BU 200-BK
Y
LLL
UU
AAA 200-BK
A PK GY BU WH RD BK BR PU
L55
L55
L51
L54
L51
1 2 3 4 5 7 6 8 9 10
B
AAA
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
HH Y 1 608-GN 2 200-BK
311-WH 310-PU
BK BK
1 2
BK-18 BK-18
L29
GN GY BR OR
H 1 3 4 2
U
200-BK 504-YL 119-PK 503-BR 505-BU
L41
(D) REAR WIPER 9X-3392
L29
C491-PU 200-BK
L53
A
1 2
(18) START AID SOLENOID 9G-4365
R U (16) PARK BRAKE PRESS SW 112-2404
L41 200-BK 603-PK
200-BK
HEATER GP
(E) REAR DEFROSTER 9X-9657
A507-YL 200-BK
(5) DUAL HORSEPOWER SOLENOID 111-0570 AAA 2 BK 921-WH 1 BK 795-YL
H
BLOWER 9X-0343 1 2
RD BK
(E) RESISTOR 9G-1950
MOTOR
H (E) RESISTOR 7T-4003
(11) COOLANT SW 8C-3569
H
CONN 7
L41
A504-GN A507-YL 200-BK 504-YL 119-PK 503-BR 505-BU 603-PK
14
13
12
498-WH 200-BK
L21
124-RD L42
L20
200-BK 614-PU
CONN 13
124-RD 521-YL 515-GY 516-GN 517-BU
1 2 5 4 3
3 5 1 4 2
X 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
614-PU 200-BK
10
CONN 28
3 1 2 4 6 7 5 8 9
K
152-BU 576-PK 577-PU 575-YL 507-WH 578-BU 506-PU
(24) CAB GROUND
200-BK
L19
501-GN 118-GY 500-BR 502-OR
L19
200-BK L14
BK 1 3 4 2
GND
MOTOR
T B+
GN GY BR OR
609-YL
HI
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.
L71
F
165-RD F775-BU
U 2
3 U
117-9364
BAT + GROUND SOL 1 OUTPUT SW 2 INPUT SW 1 INPUT SOL 2 OUTPUT
CONN 19 SERVICE TOOL CONNECTOR 9W-1951
1 2 3 4 5 6
F
SHIFT CONSOLE
9
CONN 23
921-WH 202-BK 202-BK 202-BK
E975-PU M998-OR 795-YL
G
1 2 3 4 5 6 7 8 9 10
F
CONN 24 202-BK 202-BK 202-BK 307-OR 307-OR 306-GN 308-YL 308-YL 308-YL 308-YL 308-YL
CONN 18 F
BK 1 3 4 2
GN GY BR OR
101-RD
L7
CONN 29
4K-5122 HOLDER AS. 3K-8782 FUSE
(C) FUSES (10A) FFF L 118-GY 10A UPPER WIPER/WASHER FFF L 152-BU 10A LOWER WIPER/WASHER FFF L 119-PK 10A REAR WIPER/WASHER FFF L 141-PK 10A FRONT DEFROSTER FFF L 151-GN 10A REAR DEFROSTER L L 108-BU 101-RD 10A DOME LAMP L 101-RD 144-GN 10A BEACON
L14
L62
L19
K
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
F843-YL 900-PU 902-BR 901-WH 903-GY 921-WH M917-PK G460-GN M918-GN E460-BR 321-BR
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 TOS + INP 33 36 TRANS TEMP 15 TOS - INP 202-BK 16 EMS OUT 27 308-YL 14 BU ALARM +BATTERY 40 308-YL +BATTERY 1 308-YL +BATTERY 6 308-YL 202-BK GROUND 2 202-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 - 3 893-GN CAT LINK + 9 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 (E) 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
L
L 2 L 5
118-GY 118-GY
L 614-PU 200-BK L 2
L7
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
502-OR
(C) REAR DEFROST SW 9X-9638
584-YL 141-PK
(C) FRONT DEFROST SW 9X-9638
501-GN
L9
L H
L L
3 L 584-YL 4 A503-PK L 6 A506-OR
L11
152-BU 152-BU
577-PU
L H
576-PK
L L
L
(19) CENTERSHIFT INDICATOR SW 3E-9367 439-YL 113-RD
L71
W (C) FRONT UPPER WIPER SW 3T-6655
L
CC 609-YL 200-BK
1 2
GN GN
A F775-BU 200-BK
504-YL 503-BR 507-WH
CONN 30 CAB SWITCH AND FUSE PANEL
WH-18 WH-18
2 3
L
P L
W
114-RD 322-GY
(C) FRONT LOWER WIPER SW 3T-6655
A
1 2
200-BK 200-BK
(16) FORWARD HORN SOLENOID 7T-9074 NOTE E
GN GN
H
619-GN 200-BK
B B E458-YL E458-YL
L L
P W L (C) REAR WIPER SW 3T-6655
A E458-YL 1 200-BK 2
BK-18 BK-18
A E458-YL 1 200-BK 2
BK-18 BK-18
A
4
3
130-RD 604-OR
1 2
BK-18 BK-18
(16) BRAKE AIR SW 112-2404
L1
L1
611-PU 200-BK
L
L18
5
LOC
LEVEL
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
(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
NOTE
ATCH ATCH ATCH ATCH ATCH
D
ATCH ATCH ATCH ATCH ATCH
210 211 212 213 214 204 105
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
L5
6
1 4
B B
L20
7
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
COMPONENTS ARE SHOWN INSTALLED ON A FULLY OPERABLE MACHINE WITH THE KEY AND ENGINE OFF AND XMSN SHIFTER IN NEUTRAL
(16) CENTERSHIFT SOLENOID 8T-8808
L5
8
2 1 4 3
CONN 33 1 2
L3 L10
E
THIS IS THE SCHEMATIC FOR THE 12H,140H, AND 160H STANDARD SERIES MOTOR GRADER (145-5121 CHG 01)
A P L
L
L10
200-BK 200-BK 200-BK
119-PK 119-PK
505-BU
RED WHITE ORANGE YELLOW PINK BLACK GRAY PURPLE BROWN GREEN BLUE
C
L L B B
575-YL 578-BU
119-PK 119-PK
COLOR
RD WH OR YL PK BK GY PU BR GN BU
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
3 L 584-YL 4 A504-GN L 6 A507-YL
1
HI
ABBREV
PARK
L13
L7
L8
584-YL 151-GN
T B+
CONN 32
L
1
MOTOR
K
L
(C) BEACON SW 9X-9639 3 L 603-PK
L
GND
(9) FRONT LOWER WIPER 9X-3392
L7
L71
G
4 5 6 7 1 2 3
LO
A
A L7
101-RD-10
L46
202-BK F F 1 202-BK 2 276-BK 202-BK 202-BK 3 277-BK 202-BK 4 278-BK 202-BK 202-BK 202-BK
307-OR 202-BK 306-GN E949-YL E948-BU 306-GN
L71
L76
L76
576-PK 152-BU 575-YL 577-PU
L18
135-BU
FFF K
U
(C) BLOWER SW 6P-3236 (C) TRANSMISSION DIRECTION AND SPEED SW. 8C-5337
A
101-RD-10
A
200-BK
G
(E) BLOWER 9X-9363
522-WH
PANEL LAMP (SHIFT LEVER) 7N-5876 NOTE B
(10) NEUTRAL START CONTROL
24V CIGAR LIGHTER 9W-0335
K
604-OR 321-BR
(C) CENTERSHIFT PIN SW
GGGG
129-BU 200-BK U
X
U
L43
200-BK 200-BK 200-BK
614-PU 614-PU
CIGAR LIGHTER 10A
152-BU 576-PK 577-PU 575-YL 507-WH 578-BU 506-PU 614-PU 135-BU
L18
L71
9X-9634 200-BK
OFF C U ON S U ST B U
8C-9787
609-YL
A506-OR A503-PK L62 L16 108-BU 200-BK
439-YL 200-BK
C491-PU 308-YL
L25
200-BK 200-BK
E458-YL 308-YL
L65
L71
U
CONN 21
308-YL E459-WH
9G-7641
L20
15
A
L42
L42
2 1
H
BULB 9X-7849
AAA 1 311-WH 2 200-BK
1 2
(C) KEY START SW
U
BEACON 9X-9556
U
U
CONN 20
RD BK
BK-18 BK-18
(16) PARK BRAKE SOLENOID 7T-9074 A 308-YL 1 GN 2 GN 200-BK
L43
L43
9G-9813
AAA A476-PU
T JJJ HH 1 608-GN 2 200-BK
T B+
L36
L53
T
CONN 6
PARK
BK
L36
(C) ACTION ALARM U
CONN 8
(13) ENGINE OIL PRESSURE SENDER 116-9937
(11) COOLANT TEMP SENDER 7N-8532 AAA 441-OR
BK
BU
L54
CONN 12
921-WH 614-PU 604-OR 321-BR 556-WH 200-BK 200-BK
H
L41
2 1
326-PU 311-WH E458-YL 441-OR A476-PU E459-WH 795-YL 921-WH
GND
MOTOR
A 7 6 4 2 1 5 3
921-WH 614-PU 604-OR 321-BR 556-WH 200-BK
F743-YL L6 308-YL 308-YL 308-YL 308-YL
308-YL
200-BK 200-BK
LO
K
200-BK 200-BK
L7
L36
A LO HI
200-BK
310-PU 311-WH
E458-YL E459-WH
A L54
AAA
E
L26
L7
4 1 2 3
L56
L56
(20) FRONT FRAME
E460-BR 308-YL F743-YL
101-RD 124-RD 200-BK 614-PU
CONN 9
(20) REAR FRAME
VV
2 1 3 8 5 6 4 7
101-RD
REAR FRAME A Y 2 306-GN 3 310-PU 6 311-WH 1 403-GN 4 608-GN 5 202-BK
4
VV
L26
A
(8) TRANSMISSION ACTION LAMP RELAY 106-9188
200-BK
(13) FUEL SW 107-0611
113-RD 439-YL
L43
L52
200-BK-4
K
ZZ
ZZ
200-BK-8 200-BK
CONN 27
L46
(28) REAR FRAME
TT KKK (4) 12V BATTERY NEG POS 3T-5760
308-YL L38
CIRCUIT NOT CONNECTED
L62
K
L63
L44
L7 L36
CIRCUIT CONNECTED
ELECTRICAL CONNECTION TO MACHINE STRUCTURE INTERNAL ELECTRICAL CONNECTION TO SURFACE OF COMPONENT CONNECTOR
L63
L7 L36
(12) ENGINE
BLADE FLOOD LAMP 9X-6775
CC 609-YL 609-YL 1 200-BK 200-BK 2
(D) FRONT UPPER WIPER 9X-3392
L71
STEERING CONSOLE
L36
A
DESCRIPTION
BLADE, SPADE, RING, OR SCREW TERMINAL
L76
4 200-BK-8
L21
L7
611-PU
L21
L62
165-RD 165-RD L29
L1
614-PU 614-PU
L4
(21) FRONT FRAME
306-GN 795-YL 326-PU E459-WH
P
200-BK 200-BK
IDENT
L76
A
L38
HI BEAM HEADLAMP 9X-7170
L#
L4
200-BK-6 202-BK
L22
L38
P
OPERATOR STATION
(3) 12V BATTERY 3T-5760
RD-00
LL
M
439-YL
200-BK 200-BK 200-BK
200-BK 200-BK 611-PU
200-BK
POS NEG
200-BK 200-BK
P
SYMBOL
CONN 34
200-BK 200-BK 200-BK 200-BK
RR
LLL
C'SHIFT PIN INDICATOR M LAMP 7N-5876 NOTE B
L62
200-BK 200-BK 200-BK 200-BK-6
FFFF
LO BEAM HEADLAMP 9X-7169
LAMP 7N-5876 NOTE B
L13
TT
RR
BK-00
BK-00
RD-00
BK-00
C
R/S SYSTEM AIR PRESS GAUGE 1W-3306
M
M
L21
(B) FLOOD LAMP SW 9X-9632 NOTE G
(B) DIFFERENTIAL UNLOCK SW 123-5862 3J 556-WH 498-WH 1
L67
BK-6 200-BK-10
UU
(13) DISCONNECT SW 7N-0718
3
L63
(7) ART SENDER 3E-5383
AAA
L22
M
200-BK
BLADE FLOOD LAMP SW 123-5849 NOTE F
(16) FORWARD HORN 7T0969 NOTE E
F
619-GN
P
K (E) RESISTOR 7T-4003
118-GY 118-GY
RD-00
609-YL 608-GN
614-PU 614-PU
L8
KKK
6
J
J
HI BEAM INDICATOR 7N-5876 NOTE B
10 7 8 6 4 3 5 9 1 2
MOTOR
J 5
2
M
LAMP 7N-5876 NOTE B
M
101-RD 507-WH 578-BU 506-PU 118-GY 501-GN 500-BR 502-OR 614-PU 200-BK
AAA
A 1 A429-YL 2 200-BK
3 4
M
M
L/S SYSTEM AIR PRESS GAUGE 1W-3306
L9
MTR BAT
614-PU
301-BU-10 304-WH-10 AAA 101-RD-4 A
J 2
A506-OR
VOLTMETER
L11
(14) INCHING PEDAL PRESSURE SW (TRANSMISSION) 111-7088
S
GRD
PARKING BRAKE LAMP 7N-5876 NOTE B
1 5 4 6 3 2 7
G
CONN 16
1 J 609-YL
MOTOR
K
108-BU A503-PK A506-OR 152-BU 576-PK 575-YL 577-PU
(5) STARTER 106-8558
L63
GRD
152-BU 152-BU
F843-YL 202-BK
L56
L23
614-PU
M
M
RD BK
1 2
SEND
SEND
119-PK
200-BK-4
L56
L67
L67
L55
3 J
K A506-OR 200-BK
IGN
119-PK
AAA
L55
AAA 200-BK-10 301-BU-10 GND AAA START
J 2
M
M
(E) BLOWER 9X-0343
200-BK 200-BK 200-BK
AIR PRESSURE LAMP 7N-5876 NOTE B
COLD TEMP LAMP 7N-5876 NOTE B
CONN 31
Y
614-PU 200-BK 200-BK
(B) TAIL LAMP SW 3E9319
M
101-RD 101-RD 101-RD 101-RD 101-RD
CONN 10
J 614-PU 614-PU 200-BK 200-BK J 165-RD 2 J 614-PU 200-BK
J
M
200-BK 200-BK
60A
STD Y ATCH
L24
614-PU
J
4 1 2 5 3 6 7
TRANS ACTION LAMP 7N-5876 NOTE B
200-BK 200-BK
109-OR-4
403-GN 310-PU 200-BK 105-RD 130-RD 124-RD 113-RD 165-RD 608-GN 609-YL
IGN
M
604-OR 130-RD
Y
10 9 8 1 3 2 4 6 5 7
L23
116-RD
J
A476-PU 200-BK 614-PU 611-PU E975-PU 498-WH M998-OR
439-YL 611-PU E975-PU
A
9 3 2 7 1 5 8 6 4
L5
+
(5) SHUTDOWN SOL AAA 8C-3663 STOP 326-PU
CONN 15
J
200-BK 200-BK
6
J
CONN 26
101-RD-4 101-RD-10
ALT
A
101-RD-4
149-RD
J 5
614-PU 308-YL F743-YL
L26
R
40A
Y (5) ALTERNATOR BREAKER 2H-1507 STD 9S-0174 ATCH
A
114-RD 103-RD 149-RD 116-RD 165-RD 113-RD 124-RD 130-RD 105-RD
J 2
L6
441-OR A429-YL F473-YL E458-YL 308-YL C491-PU 439-YL
202-BK E975-PU 321-BR 795-YL 306-GN 307-OR 308-YL E460-BR
Y
Y
101-RD-4
J 1 101-RD-10
614-PU 200-BK
614-PU 200-BK
F
CONN 11
A
103-RD FUSE BLOCK 9G-0747 HORN TAIL LAMPS BLADE FLOODS REAR FLOODS DIFF LOCK GAUGES HEATER STOP LAMPS KEY START SW
(B) HEADLAMP/ TAIL SW 1 3E-9317 3 J 619-GN 4 614-PU
D E A B C F G H J
(2) ALTERNATOR 6N-9294 35A 100-5047 50A
F843-YL 202-BK
1 2
304-WH-10
Y 109-OR-4
403-GN
BK BK
Y
FUSE (10A) FUSE (15A) (B) J 10A J 10A 10A J 10A J 10A J 10A J J 15A J 10A 101-RD-10 10A J
893-GN 892-BR 308-YL 202-BK
CONN 1
Y
3K8782 8M8948
105-RD 307-OR 326-PU 308-YL E459-WH F775-BU 165-RD
109-OR-10
M918-GN M917-PK
L54
J
J
A
202-BK
200-BK A429-YL C491-PU A476-PU 441-OR E458-YL
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
(5) START RELAY 3E-7279
AA
1 2 3 4 5 6 7
F
L54
L38
308-YL 326-PU 307-OR 105-RD
M917-PK AND M918-GN ARE TWISTED PAIR
1 4 3 2
L53
614-PU 200-BK
614-PU 200-BK
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
(14) TRANS SPD SENDER 104-6387
V
M918-GN M917-PK
614-PU 614-PU 200-BK 200-BK 102-BU 103-RD
(B) HEADLAMP BREAKER 3T-2662
RED NEUT FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH FORWARD REVERSE PARK NEUTRAL GROUND
V 1 2
L65
(B) HEADLAMP DIMMER SW 103-5678 619-GN
308-YL 308-YL 308-YL
M917-PK AND M918-GN ARE TWISTED PAIR
Y
101-RD-4 101-RD-10
903-GY 921-WH
L24
FFFF
619-GN 200-BK
FRONT DEFROSTER 9X-9657
M
200-BK 200-BK 200-BK 200-BK
FFFF 114-RD 322-GY
1 2
GRD
(24 V) (12 V)
LAMP 8M-6176
611-PU 619-GN 200-BK
L62
202-BK 306-GN
N 1 2
310-PU 306-GN 326-PU 795-YL E459-WH
556-WH
(14) SOL 8 127-0574
L56
902-BR 921-WH
J
GRD
P
CONN 35
310-PU
103-RD
619-GN
CONN 2
N 1 2
101-RD-4
(14) SOL 7 127-0574
3 J
CONN 25
200-BK 200-BK
24 23 22 21 20 19 18 17 16 15 1 3 4 5 6 7 8 9 10 11 12 13 14 2
901-WH 921-WH
1 2
B
J 2 611-PU
101-RD
N
1
L46
CONN 14
900-PU 921-WH
1 2
(14) SOL 6 127-0574
M917-PK AND M918-GN ARE TWISTED PAIR
L46
15A
N
751-GN 921-WH 752-YL 754-BU 755-OR 900-PU 921-WH 901-WH 902-BR 903-GY
1 2
1 9 2 3 4 5 10 6 7 8
755-OR 921-WH
102-BU 101-RD
N 1 2
(B) START AID SW 123-6375
DIFF UNLOCK LAMP 7N-5876 NOTE B
SEND
ENGINE OIL PRESSURE
F
N
A476-PU 200-BK
(24 V) (12 V)
L21
(17) ARC SUPPRESSOR 106-8704
200-BK
754-BU 921-WH
614-PU J 200-BK J J 2 308-YL
SEND
1 2 3 4 5
CONN 36 A
IGN
IGN
614-PU 614-PU
L67
CONN 22
WH RD OR PU GN GY PK YL BK
611-PU 619-GN 114-RD 322-GY
ARTICULATION
M
8 7 1 2 3 5 6 4 (B) HORN SW 116-2145
403-GN
200-BK A429-YL
L65
J 2 1 322-GY
202-BK G460-GN 308-YL
N
(14) SOL 5 127-0574
A
NN
(B) SERVICE METER 3E-9359 J J 101-RD + 200-BK SIG J
A429-YL
200-BK
752-YL 921-WH
1 2
(14) SOL 4 127-0574
BK-18 WH-18
L54
441-OR 614-PU
A J
CONN 37
1 8 6 4 3 9 7 5 2
308-YL
N 1 2
(14) SOL 3 127-0574
D
L54
608-GN A429-YL A476-PU E458-YL 441-OR C491-PU
(A) GAUGE CLUSTER 127-8314
M
E458-YL E458-YL
751-GN 921-WH
1 2
105-8827 DIODE AS. E MUR440 1 556-WH 200-BK 2 L46
L46
GN GN
1 2
1 2
403-GN
COOLANT TEMP
L25
N
(14) SOL 2 127-0574
556-WH 200-BK
2 1
E
(14) SOL 1 127-0574
E
CONN 3
NNN NNN F A 126-PK A 308-YL B 202-BK B 202-BK C G460-GN C G460-GN
L55
498-WH 556-WH 308-YL 322-GY 114-RD 611-PU 619-GN 614-PU
200-BK L55
200-BK (17) DIFFERENTIAL UNLOCK SOLENOID 7T-9073
135-BU 200-BK
614-PU 614-PU 614-PU 609-YL
614-PU
A429-YL 200-BK 403-GN 608-GN 441-OR A476-PU E458-YL
1 2
(32) 12V POWER PORT 117-2311
L12
200-BK 611-PU
L16
F473-YL 200-BK
DOME LAMP 8C-9678
3 1 108-BU 2 200-BK K
609-YL
135-BU 200-BK
WH RD BK
L12
INSTRUMENT PANEL
614-PU 200-BK
165-RD 165-RD
609-YL 308-YL 556-WH
(26) TRANSMISSION OIL TEMP SENS 3E-8700 OR-18 V+ BK-18 GROUND YL-18 SIGNAL
L21
L65
PP
1
OPERATOR STATION
L12
L65
E975-PU 200-BK
L65
200-BK 200-BK 135-BU
L69
L69
L21
L16
L18
L51
6 3 5 4 1 2
2
L76
L16 L12
L3
L50
GROUND + BATTERY GROUND (RADIO) +12V RADIO +24V IN +12V MEMORY
L69
200-BK 200-BK 556-WH
604-OR 614-PU 200-BK
DD HH 1 608-GN 2 200-BK
L16 L12 L65
921-WH 921-WH 921-WH
200-BK
L51
L50
CONN 5
608-GN 200-BK
L16
A
202-BK 202-BK 202-BK
CCC 604-OR 614-PU 200-BK
3
A
(8) 24 TO 12 VOLT CONVERTER 119-1733
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
REAR FLOOD LAMP 9X-6775
L51
2 6 4 1 9 3 7 8 10 5
S T G
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
STOP/TAIL LAMP 8C-6207
CCC 604-OR 614-PU 321-BR 921-WH 200-BK
L76
200-BK 200-BK 200-BK 200-BK 200-BK
200-BK 200-BK 200-BK
507-WH 506-PU 578-BU
CONN 4
614-PU 614-PU 614-PU
F
507-WH 200-BK
M
CCC 1 321-BR 2 921-WH
4 200-BK
619-GN
(8) FRONT UPPER A (8) FRONT LOWER A WASHER WASHER MOTOR MOTOR + + 7T-8891 7T-8891 A A
(1) ALARM BACKUP 123-6449 BK BK
5 A (8) REAR A MOTOR WASHER + 7T-8891
611-PU
7
619-GN 611-PU
8
L2
9
L2
10
611-PU 619-GN
11
200-BK
12
200-BK
13
200-BK
14
614-PU 200-BK
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
(16) BRAKE AIR SW 112-2404
A
A
(16) STOP LAMP SW 2M-9346
2
B
1
THIS SCHEMATIC IS FOR THE 12H, 140H AND 160H MOTOR GRADER STANDARD VERSION ELECTRICAL SYSTEM MEDIA NUMBER: SENR9149-03 SCHEMATIC PART NUMBER: 145-5121, CHANGE: 01, VERSION: Components are shown installed on a fully operable machine with the key and engine off, transmission shifter in neutral and with parking brake set. Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
A
MACHINE HARNESS CONNECTOR AND COMPONENT LOCATIONS 26
31
13
22
17
3
11
7
8
12
30
28
29
4
20
25
C
27
18
13
30
22
12
11
E
32
27
28
4
3
17
32
D
23
E
21
A
14 18 1 2 5 10
15 D
16 B
C
B
24
A
9
24
5 2 1 14 31 26
29
7
20
25
8
10
21
16
23
15
19
9
19
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