CHALLENGER 75C & 85C AGRICULTURAL TRACTORS ELECTRICAL SYSTEM CHALLENGER

©
1993 Caterpillar
All Rights Reserved
Printed in U.S.A.
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alternator B-1 1 Sender/Switch - Hydraulic Oil Temp C-12 15
Breaker - Alternator (135A) B-2 3 Sensor - Air Inlet Temp E-2 16
Breaker - Main (135A) A-2 3 Sensor - Atmospheric Pressure E-2 17
Breaker - Running Lamp (20A) E-6 C Sensor - Engine Coolant Temp E-2 14
Breaker - Tail Lamp (10A) E-6 C Sensor - Engine Oil Press E-2 12
Buffer - Belt Tension C-2 4 Sensor - Engine Speed E-2 18
Control - Draft B-10 5 Sensor - Fuel Temperature D-2 19
Control - Engine E-1 6 Sensor - Gov Control B-8 B
Diode Assembly ¹ B-8 B Sensor - Hitch Handle Position C-10 B
Flasher E-5 C Sensor - Hitch Position B-12 20
Fuses D-5 C Sensor - LH Belt Tension Press F-3 21
Fuses E-6 C Sensor - RH Belt Tension Press B-2 22
Fuses F-6 C Sensor - Speed/Timing E-2 6
Gauge - Coolant Temp D-9 A Sensor - Turbo Outlet Pressure E-2 24
Gauge - Fuel Level C-9 A Solenoid - A/C Clutch D-2 25
Gauge - Hydraulic Oil Temp C-9 A Solenoid - Suspension Gp (Seat) D-10 D
Gauge - Oil Press D-9 A Solenoid - Hitch A-12 20
Gauge - Speed/Tach/Ser Hr D-9 A Solenoid - Start Aid D-2 26
Horn - Alarm D-5 A Solenoids - Injector (1 at each injector) F-1 27
Horn - Foward Warning C-2 2 Switch - A/C B-9 A
Horn - Foward Warning C-1 2 Switch - A/C Pressure D-2 25
Monitor - Electronic Control Gp C-7 A Switch - Blower Motor B-9 A
Monitor - Performance E-11 A Switch - Differential Lube Press A-8 28
Motor - Blower B-4 7 Switch - Draft On/Off/Set B-10 B
Motor - Front Wiper D-4 8 Switch - Eng Coolant Temp (St Aid) D-3 14
Motor - Rear Wiper D-11 9 Switch - Eng Diagnostics C-5 B
Motor - Starting F-3 10 Switch - Front Wiper B-7 A
Radar (Perf Mon) A-5 11 Switch - Hookup B-11 B
Radio C-4 D Switch - Hydraulic Filter Flow F-2 29
Relay - Belt Tension F-7 C Switch - Key Start C-6 A
Relay - Dual Horsepower ¹ B-10 B Switch - Neutral Start B-8 B
Relay - Foward Horn E-7 C Switch - Park Brake D-11 30
Relay - Front Flood Lamp E-7 C Switch - Engine Oil Press E-2 12
Relay - Lamp Test F-7 C Switch - Rear Wiper E-9 A
Relay - Left Turn E-5 C Switch - Rotary Light E-10 A
Relay - Main Power B-3 3 Switch - Running Lamp Dimmer B-7 A
Relay - Rear Flood Lamp E-7 C Switch - Signal (Gage Cluster) D-9 A
Relay - Right Turn E-5 C Switch - Start Aid F-9 A
Relay - Start A-2 3 Switch - Stop Lamp B-6 B
Relay - Trailer Left Turn E-5 C Switch - Thermostat B-4 7
Relay - Trailer Right Turn F-5 C Switch - Throttle C-11 B
Relays - Front Wiper D-6 C Switch - Transmission Pressure ¹ A-8 31
Resistor - Blower Motor Speed B-4 7 Switch - Transmission Pressure ¹ A-8 31
Resistor - Flasher Load E-5 C Switch - Transmission Oil Temp A-6 31
Sender - Engine Oil Press E-2 12 Switch - Turn/Hazard/Horn F-8 D
Sender - Fuel Level C-12 13 Switch/Sender - Coolant Temp E-2 14
Sender - Transmission Speed A-6 23 Switch/Sender - Hydraulic Oil Temp C-12 15
Sender/Switch - Coolant Temp E-2 14 Voltmeter D-9 A
¹ Components used on Challenger 85C only.
Machine locations are repeated for components located close together.
A = Components located in the dash.
B = Components located in right side console.
C = Components located under dash near floor level.
D = Components located in operator's compartment.
Harness Connector Location Chart
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
E - 1065570
F - 9U3175
E-4 7 Contacts
E - 1065570
Trailer Conn
D-12
D - 1075683
Engine Control
D-1
D - 1075683
E - 1065570
D-2
R - 4P9535
Engine Control
F-1
E - 1065570
G - 9U3177
A-12
24 Contacts
A - 9U3196
Draft Control
B-10
E - 1065570
K - 9U3182
F-12
15 Contacts
Q - 9U3645
Monitor Panel
E-11
F - 9U3175
T - 1018767
B-4
14 Contacts
F - 9U3175
Turn/Haz/Horn Sw
F-7
C - 9U3173
Rear Wiper Motor
D-11
C - 9U3173
F - 9U3175
B-5
F - 9U3175
Frt Wiper Sw
B-7
D - 1075683
E - 1065570
E-3
P - 9U3174
Frt Wiper Motor
D-4
E - 1065570
U - 1065569
C-3
F - 9U3175
Rotary Light Sw
E-10
F - 9U3175
P - 9U3174
B-5
D - 1075683
GG - 1075692 ¹
D-2
F - 9U3175
N - 9U2706
D-8
E - 1065570
J - 9U3179
C-12
F - 9U3175
Q - 9U3645
E-10
HH - 1075693 ¹
GG - 1075692 ¹
B-10
R - 4P9535
S - 4P9537
F-1
D - 1075683
Engine Control
D-2
F - 9U3175
Monitor Panel
C-7
E - 1065570
Radar Unit
A-5
Q - 9U3645
Performance Monitor
E-11
9 Contacts
D - 1075683
ECAP Data Conn
E-1
A - 9U3196
B - 9U3197
A-11
F - 9U3175
Monitor
C-7
U - 9U3176
Belt Tension Buffer
C-2
P-9U3174
Radio
C-4
6 Contacts
4 Contacts
¹ Harnesses GG and HH used on Challenger 85C only.
Machine locations are repeated for connectors located close together.
A = Connectors located in the dash.
B = Connectors located in right console.
D = Connectors located under dash near floor level.
* = Connector is located at the component.
40 Contacts
12 Contacts
8 Contacts
Related Electrical Service Manuals
Form Number
Alternator (21 SI):
Consist No. 9X-9096
SENR4757
Elect. Troubleshooting 3176 Engine SENR6452
Starting Motor (42-MT):
Consist No. 3E-7863
SENR3581
Title
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
7T-3828 Resistor - Blower Speed
Overall 1.0 ± 0.1
Tap 0.5 ± 0.05
3E-0108 Resistor - Flasher Load 8.0 ± 0.4
3E-1907 Solenoid - A/C Clutch 3.50 ± 0.15
100-3915 Solenoid - Hitch 6.2
3E-6331 Solenoid - Start Aid 1.5
¹ At room temperature unless otherwise noted.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
3E-6425 Coolant Temp (St Aid)
38.0 ± 3.0°C
(100.0 ± 5.0°F)
27.0°C MIN
(81.0°F MIN)
Normally Closed
3E-7504 Trans Oil Temp
107.0 ± 3.0°C
(225.0 ± 5.0°F)
98.0°C MIN
(208.0°F MIN)
Normally Open
3E-7891 Trans Oil Pressure (SW 2)
295.0 kPa MAX
(43.0 psi MAX)
230 0 ± 20.0 kPa
(33.4 ± 3.0 kPa)
Normally Open
3E-7674 Differential Lube Pressure
90.0 kPa MAX
(13.0 psi Max)
35.0 ± 21.0 kPa
(5.0 ± 3.0 psi)
A-B, Normally Open
A-C, Normally Closed
101-3780 Engine Oil Pressure
80.0 kPa MAX
(12.0 psi MAX)
38.0 ± 10.0 kPa
(6.0 ± 1.5 psi)
Normally Closed
103-4976 Trans Oil Pressure (Sw 1)
310.0 kPa MAX
(45.0 psi MAX)
262.0 ± 20.0 kPa
(38.0 ± 3.0 psi)
Normally Closed
107-4658 Engine Coolant Temp
108.0 ± 3.0°C
(226.0 ± 5.0°F)
100.0°C MIN
(212.0°F MIN)
Normally Open¹
107-4927 Hydraulic Oil Temp
82.0 ± 3.0°C
(180.0 ± 5.0°F)
74.0°C MIN
(165.0°F MIN)
Normally Open ¹
¹ To check contact position of switch measure from Contact 2 to case.
Wire Description
Wire
Wire
Color
Description
Wire
Wire
Color
Description
Power Circuits
Accessory Circuits (Continued)
101 RD BAT 508 PU RADIO SPEAKER - LEFT
102 BU HD LMP 509 WH RADIO SPEAKER - LEFT (COMMON)
103 YL AUX CKT 511 BR RADIO SPEAKER - RIGHT
104 YL AUX CKT 512 GN RADIO SPEAKER - RIGHT (COMMON)
105 BR KEY SW 513 OR A/C COMPRESSOR/REFRIGERANT PRESS. SW
106 WH AUX CKT 515 GY BLOWER MOTOR (HI)
107 WH ENG SHUTDOWN 516 GN BLOWER MOTOR (MEDIUM)
109 OR ALT OUTPUT (+) TERM 518 OR HAZARD FLASHER TO SW
112 PU MAIN POWER RELAY OUTPUT 521 YL A/C SW TO REFRIGERANT SW
115 PK AUX CKT 522 WH A/C CLUTCH TO THERMOSTAT SW
116 BR AUX CKT 539 BU TURN SIGNAL INDICATOR BASIC/RIGHT
118 GY AUX CKT 540 WH TURN SIGNAL INDICATOR LEFT
119 PK AUX CKT 557 YL TRAILER CONNECTOR (LEFT TURN/HAZARD)
123 WH AUX CKT 558 GN TRAILER CONNECTOR (RIGHT TURN/HAZARD)
124 GN A/C 568 GN WARNING BUZZER TO DIODES
130 GN AUX CKT 594 PU
CH65 FRONT WIPER SW (B) TO HI SPD RELAY
COIL (85)
135 BU AUX CKT 595 YL
CH65 FRNT WPR SW(C) TO HI SPD RLY(30) & LO
SPD(85)
148 WH AUX CKT 596 WH
CH65 FRNT WPR HI SPD RELAY(87) TO LO SPD
RELA Y(87)
150 OR EUI (ADEM) A514 YL SW TO RELAY COIL (AXLE SUSPENSION)
153 WH 3 PT HITCH CONT
Lighting Circuits
165 YL AUX CKT 604 OR STOP LAMP
167 OR AUX CKT 605 YL TURN LAMP - LEFT
169 PK AUX CKT 606 GY TURN LAMP - RIGHT
170 YL AUX CKT 607 PK FLOOD LAMP - FRONT
172 GN AUX CKT 610 OR HEAD LAMP BASIC
175 PK AUX CKT 611 PU HEAD LAMP HI
Ground Circuits
614 PU PARK/TAIL/DASH LAMP
200 BK MAIN CHASSIS 619 GN HEAD LAMP LO
201 BK OPR MON PANEL 630 GY FLOOD LAMP REAR (ATTACH)
229 BK EUI CONT 635 BR TURN SIGNAL COMMON
A220 BK DRAFT CONTROL IDENTCODE 0 635 BU PAYLOAD MON RED LAMP
Basic Machine Circuits
646 OR LIGHT SW TO FRONT FLOOD RELAY
304 WH STARTER RELAY NO.1 OUTPUT 647 GN LIGHT SW TO REAR FLOOD RELAY
306 GN STARTER RELAY COIL TO NEUT START SW 648 BU LIGHT SW TO HEADLAMP BREAKER
307 OR KEY SW TO NEUT START SW 649 YL LIGHT SW TO PARK/TAIL LAMP BREAKER
310 PU START AID SW TO START AID SOL
Control Circuits
311 WH START AID SOL TO TEMP SW 710 GN XMSN SPEED PICKUP SIGNAL
320 OR HORN RELAY COIL TO SW A701 GY EUI CYLINDER SOL 1
322 GY WARNING HORN (FORWARD) A702 PU EUI CYLINDER SOL 2
Monitoring Circuits
A703 BR EUI CYLINDER SOL 3
404 YL OPR MON HYD OIL TEMP A704 GN EUI CYLINDER SOL 4
405 GY OPR MON OIL PRESS. (LO SETTING) A705 BU EUI CYLINDER SOL 5
406 PU OPR MON COOLANT TEMP A706 GY EUI CYLINDER SOL 6
410 WH OPR MON ACTION ALARM A741 BU EUI SPARE SW INPUT 1
415 GN OPR MON TEST SW A742 PU EUI SPARE SW INPUT 2
419 YL OPR MON PARKING BRAKE A746 PK EUI EUI BOOST PRESSURE
428 OR OPR MON XMSN OIL TEMP A747 GY EUI ATMOSPHERIC PRESSURE SIGNAL
441 OR ENG COOLANT TEMP GAGE A751 YL EUI SPARE DIGITAL SENSOR INPUT
447 PK FUEL LEVEL GAGE B792 BU ATA DATA LINK -
449 BU SPDOM SENDER (SIGNAL NO. 1) B793 YL ATA DATA LINK +
450 YL TACH SENDER (+) 870 OR 3 PT HITCH CONT - DOWN SOL
457 PU OPR MON SYSTEM AIR PRESS 871 BU 3 PT HITCH CONT - SOL COMMON
459 PK OPR MON PANEL IMPLEMENT POSITION 872 YL 3 PT HITCH CONT - UP SOL
460 BU OPR MON PANEL PROGRAM PIN 888 PK 3 PT HITCH CONT - HITCH POSITION
464 GY OPR MON PANEL ENG OIL PRESS. SENSOR 889 GY 3 PT HITCH CONT - HANDLE POSITION
465 OR LO CHARGE PRESS~ WARNING 890 PU 3 PT HITCH CONT - HOOKUP SW
466 WH OPR MON PANEL STER OIL TEMP 993 BR EUI SENSOR ANALOG GROUND
471 PK XMSN NEUT TO PARKING BRAKE 994 GY EUI ENG OIL PRESS.
477 YL SPDOM SENDER (SIGNAL NO. 2) 995 BU EUI COOLANT TEMP (ANALOG)
497 BU SENSOR POWER 996 GN ENG SPEED SENSOR V+
A424 WH PRESS. TRANSDUCER 1 SIGNAL 997 OR EUI SENSOR ANALOG POWER
A425 YL PRESS. TRANSDUCER 2 SIGNAL 998 BR EUI SENSOR DIGITAL GROUND
A430 OR EUI CONT FAULT OUTPUT 999 WH EUI ENGINE SPEED SIGNAL
B402 YL INDICATOR LAMP DIFF LUBE PRESS. B995 GY 3 PT HITCH CONTROL - DRAFT OFF/ON
B437 BR HYDRAULIC OIL FILTER INDICATOR B996 BR 3 PT HITCH CONTROL - SET POINT
Accessory Circuits B997 PK
3 PT HITCH DRAFT SWITCH TO THROTTLE
SWITCH
500 BR WIPER - FRONT (PARK) C912 GN THROTTLE POSITION
501 GN WIPER - FRONT (LO) C967 BU INLET AIR TEMP
502 OR WIPER - FRONT (HI)
503 BR WIPER - REAR (PARK)
504 YL WIPER - REAR (LO)
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.
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
7
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
7
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
MACHINE HARNESS CONNECTOR AND COMPONENT LOCATIONS
C48654P2
1
2
3
4
5
1
10
6
1
7
8
9
*
*
*
*
B
*
*
*
*
*
*
A
A
A
*
A
*
*
*
*
*
C
SENR5316
August 1993
Challenger 75C & 85C
Electrical System
75C:
4KK500-UP
85C:
9TK1-UP
Agricultural Tractors
CHALLENGER
L43
L17
L34
L40
L36
L38
L14
L29
L36
L29
L35
L31
L32
L28
L10
L30
L26
L34
L3
2
1
4
3
2
1
4
3
2
1
5
6
2
1
3
7
8
4
1
12
11
2
10
3
9
8
5
6
4
1
7
1
2
2
1
2
1
2
8
7
6
5
4
2
1
2
1
1
2
3
2
1
6
5
4
3
1
2
1
2
2
1
1
2
1
D
12
11
10
9
8
7
6
1
7
1
6
5
4
3
2
6
8
5
4
3
2
1
2
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
5
12
8
7
6
5
4
11
3
2
1
9
4
1
3
1
2
2
1
12
8
7
11
10
6
4
9
4
3
2
1
2
2
5
4
3
2
1
1
4
2
1 2
1
8
7
6
5
4
7
6
5
2
3
4
3
1
1
2
1
1
4
3
2
1
2
12 11 10
12 11 10
9 8 7
9 8 7
6 5 4 3 2 1
6 5 4 3 2 1
F
E
C
B
A
F
E
D
C
B
A
F
P
B+
BK
BK
BK
BK
L32
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
200-BK-10
124-GN-14
516-GN-14
DUAL HP
RELAY
3E-9362
HHHH
HH
HH
30
87a
87
85 86
HH GG
C977-BU
A742-PU
998-BR
150-OR
A514-YL150-OR
150-OR
C977-BU
C977-BU
A742-PU
GG
GG
C977-BU
A742-PU
998-BR
150-OR
150-OR
998-BR
A742-PU
A741-BU
C977-BU
A741-BU
A742-PU
998-BR
C
B
A
C977-BU
A742-PU
F
F
F
F
F
L38
L34
N
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
LAMP FLASH SW
2
3
4
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
J59
P59
101-RD-4
9
10
C
HH
HH
11
12
XMSN SW #1
103-4976
XMSN SW #2
3E-7891
13
14
16
17
18
20
HH
471-PK
DIODE AS.
106-8704
21
23
15
37
22
24
25
26
GOV CONTROL
POSITION
SENSOR
3E-5400
SIGNAL
+V
GROUND
10
20
20
106-WH-10
10
200-BK-6
106-WH-6106-WH-10
F
F
F F
CUSTOMER
TERM STRIP (2)
9U-3671
165-YL
167-OR
10A FUSE
169-PK-12
20A FUSE
FUSE BLOCK
167-OR
9W-1442
9W-1446
9W-2035
170-YL-12
165-YL
C
B
B-2
FRONT WIPER
RELAY(2)
3E-9362
F
F
635-BR518-OR
FLASHER
RESISTOR
3E-0108
27
28
REAR FLOOD
LAMP RELAY
3E-9362
FRONT FLOOD
LAMP RELAY
3E-9362
LAMP TEST
RELAY
3E-9362
20
614-PU
610-0R-14
FR FLOOD 116-BR-12
BELT TENSION
CONTROL RELAY
3E-9362
15
10
RE WIPER
FR WIPER
119-PK-14
118-GY
F
10
10
15
F
BLOWER
AIR CNDTR
3-POINT HITCH
10
10
15
10
614-PU
LMPS, MEMORY
KEY 105-BR-14
TR TURN
TURN
175-PK
172-GN
FLASHER
7T-4848
OUT (LAMP)
+ BATTERY
GROUND
172-GN
518-OR
F
TAIL
HEADLAMPS
RE FLOOD 115-PK-12
20
F
LEFT TURN
RELAY
3E-9362
LEFT TR
TURN RELAY
3E-9362
RIGHT TURN
RELAY
3E-9362
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
F
614-PU
L20
L20
L46
L46
L41
L41
L41
L42
L42
200-BK
RIGHT TR
TURN RELAY
3E-9362
L43
L41
L41
L42
L42
L43
L43
L20
L11
L11
L11
L12
L45
L44
L43
L42
L41
L40
L40
L39L39
L39L39
L38
L37
L37
L36
L22
L22
L22
L25
L25
L29
L29
L34
30
29
L34
L34
L34
8
19
J5
513-OR
521-YL
2
1
522-WH
310-PU
L34
L37
L31
L31
522-WH
310-PU
L31
D
D
D
D
6
HORN RELAY
3E-9362
32
BK-16
BK-14
J59
PU
WH
BK-16
A-10
P5
P62
J62P3J3
2
A-10
01
01
33
34
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
35
UNUSED
UNUSED
UNUSED
UNUSED
5
36
L32
UNUSED
UNUSED
L32
L38
L15
P
B+
L17
L19
UNUSED
UNUSED
UNUSED
UNUSED
38
39
UNUSED
7
9
11
1
12
2
3
10
S
L30
L34
L34
L35
L35
L35
S
L35
L33
S
L33
L28
S
S
L27
S
L27
D789-WH-16
D790-OR-16
D791-YL-16
D788-BK-16
D788-BK-16
A751-YL-16
4
D787-GN-16
C967-BU-16
1
NO
D786-BR-16
995-BU-16
D786-BR-16
D786-BR-16
994-GY-16
L4
201-BK
V
START AID
SOLENOID
3E-6331
A424-WH
5
B449-YL
123-WH
A425-YL
COOLANT SW
3E-6425
L27L27
L26
L26
L15
L15
201-BK
497-BU
BK-16
L10
L14
A701-GY-16
L14
L22
L21
L21
L27
L27
L17
L17
L17
L20
L20
L9
L9
L10
L10
L19
L25 L25
L25
L23
L23
L23
L18
L18
IDENT CODE
A702-PU-16
A747-GY-16
BK
R
A
B
CWH
BK
OR
BK
A220-BK-16
OR
WH
WH
WH
GAGE DR 1WH
PRESS IN 1
997-OR-16
993-BR-16
+VS
PRESS IN 2
GAGE DR 2
-VS
+BATTERY
SIGNAL
BELT TENSION
BUFFER
107-3578
OR-16
450-YL-16
SIGNAL
OR-16
VS
GROUND
OR
L18
UNUSED
UNUSED
UNUSED
OR-16
FORWARD
WARNING HORN
109-4575
NOTE E
L19
L15
A751-YL-16
FUEL TEMP
SENSOR
102-2240
B997-PK-16
L15
L26
OR-16
INLET AIR
TEMP
SENSOR
100-3450
OIL PRESS
SENSOR
3E-7570
UNUSED
A703-BR-16
A704-GN-16
UNUSED
E
D811-YL-16
D810-PU-16
VEHICLE SPEED IN +
VEHICLE SPEED IN -
VEHICLE SPEED OUT +
BK-16
E
E
200-BK-16
200-BK-16
200-BK-16
200-BK
200-BK-12
200-BK-16
B449-YL
VEHICLE SPEED OUT -
ANALOG SENSOR COM
123-WH-14
ANALOG SENSOR +V
J5
S
S
S
P5
A746-PK-16
999-WH-16
998-BR-16
996-GN-16
S
S
2
L26
1
310-PU
311-WH
D788-BK-16
T
D788-BK-16
8
6
S
R
B437-BR
607-PK-16
607-PK-16
322-GY-16
123-WH
201-BK
200-BK-16
200-BK-16
L23
L24 L24
L24
L25
L24
VI
VI/BK
200-BK-16
R
322-GY
L28
L28
L16
L16
L16
L17
L17
UNUSED
TO ENGINE
RETARDER
SOLENOIDS
L16
L17
B437-BR
607-PK-16
L12
200-BK-16
UNUSED
L12
B449-YL
497-BU
123-WH
201-BK
L12
L11
L11
L11
L9
L9
L10
L10
L10
L14
L13
L13
L13
C980-YL
UNUSED
L6
ALARM
HORN
3E-9168
L6
OIL PRESS
GAGE
3E-7540
LEFT TURN
TURN COMMON
RIGHT TURN
ENG FAULT
DIFF LUBE PR SW
HYD FILTER SW
XSMN TMP SW
HYD TMP SW
COOLANT TMP SW
ENG OIL PR SW
TENS PRESS SW
LAMP TEST
+ BATTERY
ALARM
HIGH BEAM GND
SIG MONITOR
PARK BRAKE
OPEN
A705-BU-16
201-BK
611-PU-16
A424-WH
558-GN
557-YL
L2
558-GN-16
619-GN-16
557-YL-16
558-GN
L3
L3
L4
200-BK-16
557-YL
557-YL
A706-GY-16
A746-PK-16996-GN-16
998-BR-16
999-WH-16
200-BK-16
3
P23
J17
A
B
CGN
YL
997-OR-16
993-BR-16
FORWARD
WARNING HORN
7T-0635
322-GY
200-BK-16
503-BR-14
119-PK-14
119-PK-14
504-YL-14
FUSE
3K-8782
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
FUSE HOLDER
031-5637
OR
200-BK
SUSPENSION GP
104-3261
L36
611-PU-16
BULB
9W-0607
SIGNAL
GROUND
VS
619-GN-16
VS
GROUND
OR
994-GY-16
FUSE BLOCK 9W-2035
10A FUSE 9W-1442
15A FUSE 9W-1441
20A FUSE 9W-1446
SIGNAL
10
YL
6
15
5
GN
130-GN
619-GN-16
619-GN-16
611-PU-16
B449-YL
200-BK
607-PK-16
322-GY
C
20
B
TAIL LAMP
BREAKER 9U-3673
200-BK-16
607-PK
200-BK
5
200-BK-10
3
5
ALL LIGHTS
3
AA
6
497-BU
201-BK
4
6
A425-YL
J70
P70
200-BK-16
607-PK-16
P21
A425-YL
201-BK
497-BU
OR
GROUND
TO
ENGINE
TO
FRAME
E
E
611-PU-16
619-GN-16
611-PU-16
VS
SIGNAL
BK
WH
997-OR-16
993-BR-16
C
F
B
BK
648-BU-14
F
BK
A
A
J67
P67
C967-BU-16
ATMOSPHERIC
PRESS SENSOR
3E-6381
229-BK
998-BR
150-OR
150-OR
A742-PU
A430-OR
C912-GN
A741-BU
C980-YL
200-BK-16
J17
DRAFT ON/SET
SW
3E-7746
B995-GY-16
322-GY
200-BK-2
B437-BR
607-PK-16
200-BK-16
24
607-PK-16
200-BK-16
497-BU
201-BK
A424-WH
J36
6
5
200-BK-16
11
9
124-GN-14
12
607-PK-16
10
200-BK-14
153-WH
8
522-WH
306-GN
4
200-BK-16
607-PK-16
123-WH
2
504-YL-14
503-BR-14
119-PK-14
614-PU
419-YL
200-BK-16
J4
P4
ECAP
ENGINE DATA
LINE
419-YL
614-PU
119-PK-14
503-BR-14
504-YL-14
J8
P8
WH
WH
WH
WH
WH
WH
WH
J7
WH
WH
WH
WH
WH
WH
WH
WH
WH
WH
410-WH
WH
410-WH
P7
8
7
WH
ALARM SIGNAL 410-WH
33
6
459-PK
F
607-PK-16
F
F
F
F F
459-PK
459-PK
459-PK
6
5
201-BK
2
3
F
201-BK
459-PK
F
619-GN-16
F
F
3
P34
FLOOD
LAMP
9X-9484
459-PK
F
477-BK
449-WH
200-BK
UNUSED
UNUSED
F
UNUSED
UNUSED
607-PK
607-PK
#6
607-PK
#5
#4
#3
#2
#1
INJECTOR SOLENOIDS
101-1619
A706-GY-16
D791-YL-16
A704-GN-16
D790-OR-16
A702-PU-16
D789-WH-16
A705-BU-16
A703-BR-16
A701-GY-16
E
B+ MEMORY
-BATTERY
C
C
J74P74
J73
P73
E
E
124-GN-14
630-GY-16
200-BK-16
L44
L44
L44
L45
L45
130-GN
L46
12
P36
200-BK-14
450-YL
471-PK
11
200-BK-16
200-BK-16
10
710-GN
9
B996-BR-16
611-PU-16
619-GN-16
200-BK
N
200-BK-16
E
E
200-BK
FLOOD
LAMP
9X-7779
BULB
9W-0607
40
GN
FLOOD
LAMP
9X-7779
1
FLOOD
LAMP
9X-9484
ANTENNA
BULB
9W-0607
200-BK
C
A
WH
A
10
12
11
611-PU-16
9
130-GN
5
8
6
130-GN
7
8
4
1
J40
1
2
PARK
HEADLIGHTS
FRONT FLOODS
PARK
HEADLIGHTS
PARK
RETARDER SOL MED/HI
BK
RD
RETARDER SOL LOW/HI
UNUSED
A
J71P71
635-BR
635-BR
P59
OFF
200-BK-16
A
307-OR
106-WH-10
J57
123-WH
P57
J56
+B+1 +B+2
+B+4
+B+5 +B+6
P56
D788-BK-16
+B+1 +B+2
+B+3 +B+6
B402-YL
428-OR
B437-BR
B449-YL
710-GN
123-WH-14
457-PU
460-BU
322-GY-16
307-OR
306-GN
512-GN
441-OR
406-PU
464-GY
HAZARD
L,H & M
L,P,H & K
P & N
A & B
LEFT
TURN
P & M
J,L & N
A & C
RIGHT
TURN
P,M & N
START
ON
OFF
OFF-L
ACC
NEUTRAL
405-GY
450-YL
D & C HIGH
B,C & D LOW
B & C
PARK
FRONT WIPER SWITCH
TERMINALS
CONNECTED
310-PU
522-WH
01
106-5570
BULB
9W-0607
FLOOD LAMP
9X-8180
J55P55
BULB
9W-0607
FLOOD LAMP
9X-8180
521-YL
201-BK
RETARDER SOL COMM
D787-GN-16
D786-BR-16
UNUSED
UNUSED
447-PK
UNUSED
R
UNUSED
UNUSED
R
404-YL
466-WH
557-YL
558-GN
614-PU
604-OR
619-GN-16
611-PU-16
SWITCH
POSITION
UNUSED
106-WH-4
521-YL
112-PU-4
UNUSED
511-BR
509-WH
BULB
9W-0607
BK
RD
VIEW OF SW
TERMINALS
3
2
1
J52
P52
J51
P51
BULB
7M-9957
J50
P50
J49 P49
J48
P48
A
A
J47
P47
J46
123-WH
P46
J45
P45
J44
P44
J43 P43
J42
P42
J41
P41
J39
P39
J38 P38
J37
P37
J35 P35
J34
P34
J33 P33
614-PU
J24
P24
J23
P23
J22
TAIL
200-BK
200-BK-12
P22
888-PK-16
870-OR-16
871-BU-16
872-YL-16
200-BK-16
153-WH-16
123-WH
135-BU
J63 P63
P20J20
J19
P19
123-WH
OPERATOR STATION
123-WH
OPERATOR STATIONOPERATOR STATION
OPERATOR STATION
OPERATOR STATION
J18
614-PU
J66
450-YL
710-GN
460-BU
457-PU
441-OR
464-GY
447-PK
466-WH
123-WH-14
307-OR
A
604-OR
619-GN-16
611-PU-16
558-GN
557-YL
229-BK
405-GY
406-PU
404-YL
428-OR
P66
B437-BR
B402-YL
415-GN
123-WH
123-WH
508-PU
RRH SP -
F
F
F
F
F
F
F
F
F
123-WH
F
UNUSED
3
J16
P16
P15
J15
J14
F
306-GN
201-BK
P14
106-WH-6
J13
310-PU
310-PU
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
112-PU-10
123-WH
112-PU-10
P13
TERMINALS
CONNECTED
SWITCH
POSITION
HITCH
POSITION
SENSOR
3E-7706
HITCH
SOLENOID
100-3915
YL-16
BU-16
OR-16
J11
123-WH
P11
306-GN
522-WH
521-YL
200-BK
UNUSED
J65
504-YL
1
TO
CAB
TO
FRAME
112-PU-10
GROUND
VS
SIGNAL
B
RRH SP +
504-YL
B
A
B
C
200-BK
148-WH
124-GN-14
2
RADIO
3E-7140
NOTE E
LEFT
SPEAKER
6T-7695
DOME
LAMP
3E-7301
201-BK
201-BK
P65
201-BK
FUEL LEVEL
GAGE
3E-9345
HYDRAULIC
TEMP GAGE
3E-7542
+B+2
TURN/HAZARD/
HORN SW
6T-6069
RIGHT
SPEAKER
6T-7695
512-GN
511-BR
P64
112-PU-10
200-BK-12
4
COOLANT TEMP
SENSOR
102-2240
C
C
B
B
870-OR-16
871-BU-16
872-YL-16
888-PK-16
200-BK-16
153-WH-16
870-OR-16
871-BU-16
872-YL-16
614-PU
SIG
J24
P
P24
SPEED/TIMING
SENSOR
3E-6410
A
B
F
F
C
C
C
E
995-BU-16
A
SW IN
112-PU-10
112-PU-10
310-PU
502-OR
500-BR
124-GN-14
200-BK-12
522-WH
522-WH
148-WH
515-GY-14
118-GY
124-GN-14
KEY SW
6T-6068
J64
888-PK-16
516-GN-14
605-YL
635-BR
1
2
112-PU-10
BULB
5M-8034
LEFT
TURN LAMP
3E-7302
BULB
5M-8034
RIGHT
TURN LAMP
3E-7302
568-GN
123-WH
200-BK-16
153-WH-16
S
T
LAMP GP
LH
3E-6344
STOP
LAMP
5M-8034
TAIL
LAMP
9W-2471
F
RLH SP -
RLH SP +
GY
201-BK
459-PK
E
RADIO
ANTENNA
9W-3072
GY/BK
FLOOD LAMP
9X-7779
135-BU
630-GY-12
F
RD
606-GY
YL
130-GN-16
605-YL
606-GY
GN/BK
BK
635-BR
307-OR
605-YL
123-WH-16
WH
105-BR-14
130-GN
502-OR
501-GN
500-BR
594-PU
595-YL
614-PU
118-GY
201-BK
611-PU-16
619-GN-16
604-OR
FRH SP -
MONITOR ELECTRONIC
CONTROL GP.
7X-1940
201-BK
123-WH-14
+ BATTERY
HIGH/LOW/PARK
201-BK
E
201-BK
466-WH
FRH SP +
J72
FRONT
WIPER SW
9X-3266
P72
123-WH
PERFORMANCE
MONITOR
PANEL
3E-9167
NOTE C
404-YL
310-PU
J71
123-WH
P71
F
F
START
AID SW
3E-7530
REAR
WIPER SW
3E-7529
5
6
649-YL-16
648-BU-14
647-GN
508-PU
509-WH
RD
BK
F
F
F
F
F
F
F
F
C F
516-GN-14
29
1
30
36
2
14
8
20
23
37
GROUND
38
BU
35
2
1
33
B+
32
31
26
25
24
21
16
15
10
40
11
39
4
9
7
19
13
6
5
12
466-WH
447-PK
123-WH
123-WH
441-OR
18
201-BK
464-GY
123-WH
477-BK
441-OR
464-GY
449-WH
447-PK
466-WH
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
123-WH
201-BK
17
22
G-2
G-1
123-WH
1
124-GN-14
148-WH
619-GN-16
611-PU-16
IGN1
610-OR-14
1
2
BK
471-PK
306-GN
A/C SW
3E-7531
501-GN
200-BK
200-BK-14
614-PU
7
TN
LT GN
E
H
635-BR
320-YL
540-WH
539-BU
447-PK
558-GN
557-YL
200-BK
200-BK
200-BK
200-BK
B+ MEM
604-OR
614-PU
200-BK-16
200-BK-16
200-BK
466-WH
630-GY
200-BK
404-YL
630-GY
B402-YL
428-OR
200-BK-16
B
710-GN
123-WH
457-PU
200-BK-16
460-BU
C
201-BK
J58
201-BK
A/C CLUTCH
SOL
3E-1907
428-OR
P58
B793-YL
TO
ENGINE
229-BK-16
ECM GROUND STRAP
J73 P73
SIGNAL
GROUND
VS
B
28
C
A
OR
C
SPEED/TACH
HOUR METER
3E-7318
NOTE A
B792-BU
229-BK
E
BK-16
27
466-WH
404-YL
619-GN-16
447-PK
WASHA & E
B+ ANT
BK-16
FLH SP -
YL
GN
C
J32
P32
J31 P31
J30 P30
497-BU
201-BK
LH BELT TENSION
PRESS SENSOR
3E-6114
A425-YL
Y
EE
200-BK-2
L6
P25J25
OIL PRESS
SENDER
105-8056
RD
40
39
BK
38
558-GN
557-YL
619-GN-16
619-GN-16
LEFT TURN
LAMP
3E-9346
557-YL
619-GN-16
611-PU-16611-PU-16
200-BK
611-PU-16 611-PU-16
614-PU
614-PU
614-PU-16
604-OR
BULB
5M-8034
604-OR
604-OR
A
E
DD
L8
635-BR
605-YL
FLH SP +
WH/BK
L8
3
COMMON
COMMON
N
M
P
G
F
K
L
J
A
B
C
LEFT TURN
HORN
635-BR
RIGHT TURN
BR
BR
PU
LT BU
DK BU
DK GN
YL
WH
BR
OR
BK
6
L7
4
BK-14513-OR
L3
C
B
A
3
200-BK
557-YL
1
5
611-PU-16
2
123-WH
459-PK
619-GN-16
611-PU-16
522-WH
229-BK
A/C PRESS
SW AS.
3E-6043
NOTE D
C912-GN
229-BK
123-WH-14
L4
L1
200-BK-16
460-BU
457-PU
123-WH
710-GN
112-PU-4
521-YL
306-GN
307-OR
522-WH
310-PU
106-WH-4
450-YL
405-GY
464-GY
200-BK
406-PU
441-OR
441-OR
406-PU
464-GY
405-GY
201-BK
201-BK
521-YL
450-YL
200-BK
201-BK
405-GY
201-BK
450-YL-16
201-BK-16
450-YL-16
201-BK
614-PU
201-BK
604-OR
201-BK
611-PU-16
611-PU-16
106-WH-10
619-GN-16
557-YL-16
J69
123-WH
606-GY
U
E D
614-PU
D
D
D
D
B
619-GN-16
611-PU-16
200-BK-16
614-PU
604-OR
466-WH
404-YL
B
201-BK
2
447-PK
515-GY-14
119-PK-14
604-OR-16
BK
614-PU-16
558-GN-16
201-BK
200-BK-16
604-OR-16
504-YL-14
200-BK-12
T
557-YL
558-GN
447-PK
404-YL
466-WH
614-PU
200-BK-16
611-PU-16
619-GN-16
EE
521-YL
630-GY-12
OR
614-PU
130-GN
130-GN
IGN3
ACC
SOL
B-3
B-2
B-1
XMSN
SPEED
SENDER
6V-2455
D
TO
FRAME
201-BK
J61
P61
J61
P61
J60
P60
J6
P6
BK-16
WH-16
200-BK
135-BU
30
200-BK
P76
RD
BK
IMPLEMENT
LAMP AS.
3E-6284
1
2
GROUND
BK
T
MOTOR
L
H
200-BK
OR
BR
GY
GN
B
500-BR
501-GN
502-OR
118-GY
VS
P69
+B+1
+B+6
UNUSED
87a
L6
200-BK
J76
450-YL-16
201-BK-16
ENGINE
SPEED
SENSOR
4P-5820
2
1
HYD FILTER
SW
7X-8549
B437-BR
200-BK-16
611-PU-16
619-GN-16
B449-YL
464-GY
428-OR
B402-YL
OIL PRESS
SW
101-3780
SIGNAL
993-BR-16
997-OR-16
993-BR-16
997-OR-16
STARTER
3E-7863
101-RD-2
200-BK-10
A
T
C
B
F
3
2
S
S
S
S
S
S
C
130-GN
605-YL
BK-0000
635-BR
606-GY
GN
GY
BR
OR
H
L
MOTOR
T
BK
106-WH-10
635-BR
200-BK
200-BK
200-BK
304-WH-10
S
87
RADAR
3E-7762
NOTE B
C
A220-BK-16
RD-0000
Q
TERMINALS
CONNECTED
WITH DRAFT CONTROL, PLUG
SPEED SENSOR INTO HARNESS AS. B
PLUG AND PLUG HARNESS AS. B
RECEPTACLE INTO HARNESS AS. D PLUG
B
J33 P33
5BK-16
BK-16
106-WH-10
D
BK
ATA DATA LINK+
31
4
Q
FF
P
229-BK-16
ATA DATA LINK-
BK-16
MOTOR
BATMTR
S
+ BATTERY
G
BK
P
P
P
619-GN-16
HIGH BEAM
HEADLAMP
9W-0050
HIGH/LOW
BEAM
HEADLAMP
9W-0049
118-GY 118-GY
- BATTERY
200-BK-16
P
123-WH-14
P
P
P
P
F
F
86
85
85
86
85
201-BK
86
119-PK-14
200-BK-16
87
558-GN-16
557-YL-16
87a
30
614-PU-16
604-OR-16
619-GN-16
611-PU-16
N
N
N
N
N
A
200-BK
F
E
200-BK-16
518-OR
307-OR
2
WH
614-PU
123-WH
201-BK
201-BK
710-GN
450-YL
3A
614-PU
604-OR
619-GN-16
611-PU-16
A
A430-OR
L
LL
L
K
K
K
457-PU
130-GN
B
C
LOW GEAR INPUT
123-WH
1
3
2
200-BK-16
630-GY-16
635-BR
SOCKET AS.
9G-7069
L45
200-BK
200-BK-14
WH-16
200-BK
K
200-BK-14
BK-16
T
FRONT WIPER
3E-7502
T
K
11
K
J
J
J
105-BR-16
15
12
9
8
7
87
87a
30
P
201-BK
123-WH
614-PU
1
630-GY-12
105-BR-16
L30
201-BK
123-WH
30
87a
87
86
85
85
86
87
87a
30
30
1
87a
BK-16
BK-16
2
87
86
85
85
86
87
87a
153-WH-16
1
200-BK-14
200-BK
153-WH
614-PU
503-BR-14
119-PK-14
504-YL-14
3
UNUSED
L38
419-YL
L26
L30
ECM GND STRAP
C
201-BK
614-PU
614-PU
614-PU
614-PU
106-WH-10
310-PU
130-GN
123-WH
568-GN
7
6
6
605-YL
635-BR
606-GY
30
B
30
87a
87
86
A
85
NORMALLY CLOSED
CONTACT HELD OPEN
85
86
87
87a
30
450-YL-16450-YL-16
+BAT
2
-BAT
HITCH POS
3
7
DOWN SOL
606-GY
HYD OIL
SW SENDER
107-4927
WH
635-BR
605-YL
Q
L30
710-GN
201-BK
BK-16
WH-16
WH
STRAP AS. 6Y-6584
502-OR
5
447-PK
B402-YL
201-BK
DIFF LUBE
SW
3E-7674
P
5
BK
K
P
P
SIGNAL
+VS
30
2
6
1
200-BK
200-BK
200-BK-12
119-PK-14
GROUND
200-BK-12
E
E
F
G
H
J
1
DIAGNOSTIC LAMP
HIGH GEAR INPUT
THROTTLE INPUT
7
229-BK
2
3
150-OR
J
229-BK
GG
150-OR
419-YL
200-BK
504-YL-14
119-PK-14
614-PU
153-WH
200-BK-12
200-BK-12
NEUTRAL SW
9X-4232
124-GN-14
503-BR-14
200-BK
471-PK
471-PK
201-BK
201-BK
630-GY
200-BK
87a
A
C
C
A
87
86
85
229-BK
614-PU
200-BK
604-OR
C912-GN
112-PU-10
229-BK
C980-YL
112-PU-10
SWITCH
POSITION
BK
RD
C912-GN
+B+6
C912-GN
30
87a
604-OR
200-BK
614-PU
504-YL-14
87
86
10
20
85
5
6
THERMOSTAT SW
3E-5464
RESISTOR
7T-3828
NONE
A430-OR
C912-GN
4
123-WH
123-WH-16
2
HIGH BEAM
604-OR
130-GN
20A
105-BR-14
123-WH-14
307-OR
135-BU
10A
500-BR
502-OR
501-GN
596-WH
595-YL
595-YL
595-YL
595-YL
594-PU
594-PU
614-PU
200-BK
200-BK
200-BK
320-YL
A430-OR
C912-GN
229-BK
C980-YL
614-PU
229-BK
153-WH
L36
607-PK-16
WH-16
607-PK-16
153-WH
TAIL
LAMP
9W-2471
200-BK-14
200-BK-12
200-BK-12
STOP
LAMP
5M-8034
COOLANT TMP
SW SENDER
107-4658
635-BR
635-BR
BK-16
200-BK-16
630-GY-16
605-YL
T
LAMP GP
RH
3E-7303
460-BU
457-PU
201-BK
123-WH
3
RD
BK
GN
WH
+BATTERY
GROUND
SIGNAL
PROGRAM
1
L8
L8
105-BR-16
C980-YL
200-BK
TO
CANOPY
106-WH-10
G
G
G
G
G
G
200-BK
G
G
CC
CC
U
FF
EE
DD
CC
BB
AA
Z
Y
X
W
V
U
C
T
S
200-BK-6
200-BK
649-YL-16
648-BU-14
648-BU-14
112-PU-10
501-GN
595-YL
594-PU
502-OR
500-BR
115-PK-12
647-GN
200-BK
630-GY-12
646-OR
116-BR-12
BLOWER
3E-7501
200-BK
200-BK
200-BK
607-PK-16
607-PK-16
307-OR
415-GN
R
465-OR
200-BK
201-BK
200-BK
200-BK
B449-YL
112-PU-10
Q
112-PU-10
112-PU-10
L21
200-BK
201-BK
614-PU
123-WH
614-PU
201-BK
123-WH
123-WH
123-WH-16
307-OR
106-WH-10
148-WH
124-GN-14
118-GY
P
105-BR-14
322-GY
521-YL
N
153-WH
M
J76
614-PU
322-GY
200-BK-14
L
U
647-GN
558-GN
K
614-PU
558-GN
557-YL
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
J
H
G
M
635-BR
635-BR
635-BR
F
B
648-BU-14
648-BU-14
646-OR
K
T
S
649-YL-16
R
E
D
C
R
R
646-OR
647-GN
B
A
C-2
A
635-BR
635-BR
DD
175-PK
175-PK
GAGE CLUSTER
175-PK
614-PU
P
P
T
200-BK-14
522-WH-14
WH/RD-14
BK-14
DD
X
201-BK
614-PU
P
460-BU
P
450-YL
457-PU
614-PU
106-WH-10
710-GN
539-BU
614-PU
200-BK
503-BR-14
119-PK-14
614-PU
F
504-YL-14
123-WH
SIGNAL SW
9G-9955
614-PU614-PU
123-WH
201-BK201-BK
123-WH
540-WH
LOWER
PANEL
GRD
SEND
IGN
GRD
SEND
IGN
+V TIMING
C912-GN
VOLTMETER
104-5687
COOLANT
TEMP GAGE
3E-7889
F
539-BU
+
ROTARY
LIGHT SW
3E-7275
TRAILER
CONNECTOR
9G-8887
2
7
5
3
1
6
4
605-YL
605-YL
605-YL
P
F
607-PK-16
607-PK-16
SPEED/TIMING
607-PK-16
201-BK
607-PK-16
605-YL172-GN
172-GN
ENGINE
CONTROL
3E-7511
ATCH
C-4
605-YL
200-BK-14
LAMP
130-GN
+ BATTERY
ENGINE SP
RADAR
XMSN SPEED
D-2
E-11
A-4
D-9
NOTE
LOC
NOTE E: DEALER INSTALLED ATTACHMENT
NOTE D: NORMALLY CLOSED AT PROPER REFRIGERANT
CHARGE
A424-WH
R
C-2
450-YL
459-PK
457-PU
710-GN
IMPLEMENT POS
647-GN
F
P
410-WH
J61
201-BK
459-PK
P61
-BATTERY
606-GY
D
D
RH BELT TENSION
PRESS SENSOR
3E-6114
630-GY-12
635-BR
605-YL
200-BK
201-BK
497-BU
GN
YL
OR A
C
B
VS
GROUND
SIGNAL
A430-OR
005T-1004
101-RD-4
MAIN POWER
BREAKER
9S-4693
106-WH-4
80
E
123-WH
B437-BR
322-GY-16
607-PK-16
607-PK-16
L4
L3
L2
L2
L1
BULB
5M-8034
200-BK
558-GN
RIGHT TURN
LAMP
3E-9346
BK
L8
L8
RD
NOTE A:
L8
304-WH-10
CABLE AS.
WIRE AS.
L3
L4
101-8767
9U-3655
9U-3653
L1 L1
9U-3654
B-4
4P-9537
4P-9535
9U-3172
9W-3073
9U-3645
9U-3174
4E-7517
4E-0718
9U-3672
101-5759
9U-4856
9U-3182
9U-3179
9U-3801
9U-3177
9U-3170
9U-3169
200-BK
558-GN
9U-3175
106-5569
107-5683
9U-3173
9U-3197
9U-3196
M
M
M
V
Z
Z
M
BK
200-BK
BK
M
M
M
M
U
BB
BB
BB
BB
OR-16
OR-16
U
U
U
U
109-OR-4
101-RD-2
611-PU-16
FRAME
BK-0000
12V
BATTERY
9X-3404
611-PU-16
200-BK-16
ATCH
FF
RD-0000
RD-0000
BK-0000
F-3
C-2
D-10
R
606-GY
606-GY
606-GY
606-GY
518-OR
D-4
F-12
C-12
T
2
A-12
A514-YL
E
D-1
B-6
NEG POS
9U-2706
B-2
XSMN SW
3E-7504
TDC SERVICE
PROBE ACCESS
D-4
B-2
B-2
D-12
200-BK-10
A514-YL
307-OR
307-OR
306-GN
306-GN
123-WH
112-PU-4
109-OR-4
304-WH-10
B-3
B-2
107-5693
D-1
107-5692
HH
B+
BK-16
647-GN
NOTE
GG
TO
ENGINE
619-GN-16
M
FF
FF
Y
D
V
ATCH
START
RELAY
3E-7278
E
E
E
E
1
H
Y
Y
AA
ATCH
H
H
H
A-11
J68P68
B-10
E-4
00
V
00
W
J75
BULB
9W-0607
E-11
01
B-2
F-1
B-5
J1P1
611-PU-16
02
01
D-9
B449-YL
A-2/F-2
ATCH
01
01
00
518-OR
01
01
00
03
02
02
04
01
00
04
01
01
03
518-OR
01
06
01
01
03
03
2
515-GY-14
515-GY-14
172-GN
172-GN
172-GN
02
W
ALTERNATOR
9X-9096
109-OR-4
200-BK-4
F
R
HIGH/LOW BEAM
HEADLAMP
9W-0049
HIGH BEAM
HEADLAMP
9W-0050
200-BK-16
619-GN-16
A514-YL
MAIN POWER
RELAY
9X-0253
123-WH
109-OR-4
135
200-BK
106-WH-4
500-BR
12V
BATTERY
9X-3404
503-BR-14
119-PK-14
112-PU-4
614-PU
614-PU
123-WH
4
153-WH-16
200-BK-16
200-BK-16
200-BK-16
200-BK-16
614-PU
B997-PK-16
200-BK
614-PU
RUNNING LAMP
BREAKER
9U-3674
101-RD-4
SWITCH POSITION A= CH65, CH70
SWITCH POSITION 4= CH75, CH85
+
POSNEG
1
2
ALT
BREAKER
7T-9251
200-BK
630-GY
CHG
201-BK
ALT
200-BK-16
U
GY
PU
BR
RED
WHITE
201-BK
201-BK
123-WH-16
200-BK-14
112-PU-4
106-WH-4
522-WH
521-YL
ORANGE
112-PU-10
201-BK
MOTOR
FLOOD LAMP
9X-7779
BULB
9W-0607
P76
614-PU
GRD
IGN
614-PU 614-PU
GRD
SEND
IGN
GRD
SEND
IGN
123-WH
201-BK
415-GN
123-WH
568-GN
200-BK
419-YL
YELLOW
PANEL
LAMP
8M-6176
611-PU
605-YL
200-BK
106-WH-10
10
10
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
PINK
-
635-BR
606-GY
RUNNING
LAMP
DIMMER SW
6T-6067
ABBREV COLOR
NC
307-OR
C
HOOKUP SW
3E-7745
888-PK-16
870-OR-16
871-BU-16
872-YL-16
890-PU-16
200-BK
419-YL419-YL
200-BK-16
153-WH-16
889-GY-16
889-GY-16
PARK
BRAKE SW
3T-3133
200-BK
A
GROUND
VS
SIGNAL
RD
BK
WH
153-WH-16
200-BK-16200-BK-16
153-WH-16
UP SOL
HANDLE POS
HOOK-UP SW
23
BK
RD
HITCH HANDLE
POSITION
SENSOR
3E-7706
SET POINT
DRAFT SW
THROTTLE SW
9G-2795
DRAFT
CONTROL
102-9857
BLACK
ENG SP
SOL COMM
15
8
4
11
5
6
22
13
9
14
10
18
19
20
21
17
16
12
515-GY-14
153-WH-16
200-BK-16
872-YL-16
871-BU-16
870-OR-16
T
REAR
WIPER
3E-7394
FUEL LEVEL
SENDER
3E-7539
888-PK-16
124-GN-14
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
A
200-BK
BK
130-GN
F
A
200-BK-16
A
A
A
890-PU-16
4
5
N
N
N
N
614-PU
BK
WH
RD
B
C
A
405-GY
406-PU
404-YL
465-OR
594-PU
428-OR
635-BR
606-GY
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
515-GY-14
CIRCUIT NOT CONNECTED
200-BK-14
130-GN-16
B437-BR
B402-YL
503-BR-14
ATCH WIRE, CABLE,
COMPONENT
L
F
F
#
118-GY
TURN SWITCH
SEND
4
TO
CAB
F
D785-GN-16
BLOWER SW
3E-7528
611-PU
CIRCUIT GROUPING
DESIGNATION
5
6
614-PU
1
2
PANEL
LAMP
8M-6176
SOCKET AS.
9G-7069
6
5
F
F
F
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 18 GAGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
AND XMSN SHIFTER IN NEUTRAL
C
D
E
A
PU
WH
GY
YL
595-YL
PK B
LOW/PARK
THIS SCHEMATIC IS FOR THE CH85 C-SERIES UPDATE
(106-3678 CHG 00)
112-PU-10
L29
172-GN
172-GN 172-GN
172-GN
IDENT
112-PU-10
COOLANT TEMP
SPEED/TIMING COM
D784-BU-16
ATMOSPHERIC PRESS
OIL PRESSURE
34
CYL NO.6
CYL COMMON 5&6
A
CYL NO.4
FUEL TEMP
CYL COMMON 3&4
CYL NO.2
CYL COMMON 1&2
UNUSED
CYL NO.5
ENG DIAG
SW
9D-3721
CYL NO.3
TURBO OUTLET PRESS
OR
DIGITAL SENSOR COM
GN
YL
SIGNAL
VS
GROUND
OR
TURBO OUTLET
PRESS SENSOR
3E-6379
T
T
T
T
T
D
PART NO.
UNUSED
CYL NO.1
P2 J2
D791-YL-16
D791-YL-16
D790-OR-16
D790-OR-16
A747-GY-16
R
D789-WH-16
P10
J9
P21
993-BR-16
INLET AIR TEMP
997-OR-16
D789-WH-16
LOC
HARNESS AS.
P75
NOTE C: FOR METRIC USE 3E-9170
NOTE B: FOR UK USE 3E-7763
NOTE F
F
F
B-8 NOTE F: DUAL HORSEPOWER COMPONENTS & CIRCUITRY
(HARNESS GG AND HH) USED ON CH. 85C ONLY
B-8 NOTE G: ON CH. 75C CONN A WILL BE CONNECTED TO
CONN B. HARNESS GG AND HH NOT USED
ON CH. 75C
NOTE F
NOTE F
CONN B
NOTE G
NOTE F
CONN A
ALL DASHED LINES ARE ATTACHMENTS.
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.
MONITOR CIRCUIT.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
PERFORMANCE MONITOR CIRCUIT.
TURN SIGNAL CIRCUIT.
DRAFT CONTROL CIRCUIT.
START AID CIRCUIT.
ENGINE CONTROL CIRCUIT.
STOP LAMP SW
7T-6141