SENR4795
August 1990
Challenger 65 Agricultural Tractor
Electrical System
7YC1453-UP
©
1990 Caterpillar
All Rights Reserved
Printed in U.S.A.
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.
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
Wire Description Chart
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Distribution Circuits
Monitoring Circuits (Cont'd.)
101
RD
BATTERY
457
PU
OPR MON PANEL GROUND SPEED SENDER
102
BU
HEAD LAMP
458
PK
OPR MON PANEL +V
105
BR
KEY SW
459
PK
OPR MON PANEL IMPLEMENT POSITION
109
OR
ALTERNATOR OUTPUT (+) TERM.
460
BU
OPR MON PANEL PROGRAM PIN
112
PU
MAIN POWER RELAY OUTPUT
463
YL
SENSOR PRESENT
114
GN
WARNING HORN (FORWARD)
464
GY
OPR MON PANEL ENG OIL PRESS. SENSOR
115
PK
AUX CKT
466
WH
OPR MON PANEL STER OIL TEMP
116
BR
AUX CKT
469
GN
FUEL LEVEL SENDER B+
118
GY
AUX CKT
119
PK
AUX CKT
500
BR
WIPER - FRONT (PARK)
123
WH
AUX CKT
501
GN
WIPER - FRONT (LO)
124
GN
A/C
502
OR
WIPER - FRONT (HI)
129
BU
AUX CKT
503
BR
WIPER - REAR (PARK)
130
GN
AUX CKT
504
YL
WIPER - REAR (LO)
135
BU
AUX CKT
505
BU
WIPER - REAR (HI)
146
GY
AUX CKT
508
PU
RADIO SPEAKER - LEFT
147
PU
AUX CKT
509
WH
RADIO SPEAKER - LEFT (COMMON)
148
WH
AUX CKT
511
BR
RADIO SPEAKER - RIGHT
153
WH
3 PT. HITCH CONT
512
GN
RADIO SPEAKER - RIGHT (COMMON)
154
WH
AUX CKT
513
OR
A/C COMPRESSOR/REFRIGERANT PRESS. SW
172
GN
AUX CKT
516
GN
BLOWER MOTOR (MEDIUM)
174
PK
AUX CKT
517
BU
BLOWER MOTOR (LO)
175
PK
AUX CKT
518
OR
HAZARD FLASHER TO SW
176
OR
AUX CKT
521
YL
A/C SW TO REFRIGERANT SW
176
YL
AUX CKT
522
WH
A/C CLUTCH TO THERMOSTAT SW
177
OR
MAIN BKR
539
BU
TURN SIGNAL INDICATOR BASIC/RIGHT
178
GN
MAIN BKR
540
WH
TURN SIGNAL INDICATOR LEFT
541
GN
ACC 1
200
BK
MAIN CHASSIS
542
BU
ACC 2
201
BK
OPR MON PANEL/VMIS/CMS
557
YL
TRAILER CONNECTOR (LEFT TURN/HAZARD)
220
BK
ENG OIL PRESS. SENSOR
558
GN
TRAILER CONNECTOR (RIGHT TURN/HAZARD)
221
BK
ENG COOLANT TEMP SENSOR
567
WH
A/C SW JUMPER
228
BK
FUEL LEVEL SENDER
569
PK
A/C SW JUMPER NO.2
579
BR
A/C BLOWER MOTOR NO.1
304
WH
STARTER RELAY NO.1 OUTPUT
580
OR
A/C BLOWER MOTOR NO.2
306
GN
STARTER RELAY COIL TO NEUT START SW OR
595
YL
CH65 FRNT WPR SW(C) TO HI SPD RLY(30) & LO
KEY SW
SPD(85)
307
OR
KEY SW TO NEUT START SW OR VMIS SENSOR
MODULE
602
WH
DOME LAMP
308
YL
MAIN POWER RELAY COIL
604
OR
STOP LAMP
310
PU
START AID SW TO START AID SOL
605
YL
TURN LAMP - LEFT
311
WH
START AID SOL TO TEMP SW
606
GY
TURN LAMP - RIGHT
320
OR
HORN RELAY COIL TO SW
607
PK
FLOOD LAMP - FRONT
322
GY
WARNING HORN (FORWARD)
608
GN
FLOOD LAMP - REAR
610
OR
HEAD LAMP BASIC
403
GN
ALTERNATOR (R) TERM.
611
PU
HEAD LAMP HI
404
YL
OPR MON HYD OIL TEMP
614
PU
PARK/TAIL/DASH LAMP
414
PK
OPR MON LO FUEL
619
GN
HEAD LAMP LO
419
YL
OPR MON PARKING BRAKE
620
WH
FLOOD LAMP - FRONT (ENG. FLOOD LAMP)
428
OR
OPR MON XMSN OIL TEMP
630
GY
FLOOD LAMP REAR (ATTACH)
441
OR
ENG COOLANT TEMP GAGE
635
BR
TURN SIGNAL COMMON
447
PK
FUEL LEVEL GAGE
635
BU
PAYLOAD MON RED LAMP
450
YL
TACH SENDER (+)
456
BR
OPR MON PANEL PTO
710
GN
XMSN SPEED PICKUP SIGNAL
Control Circuits
Accessory Circuits
Ground Circuits
Basic Machine Circuits
Monitoring Circuits
Lighting Circuits
Off Vehicle Switch Specifications
Part No. Function Actuate Deactuate Normal Condition
7N7854 Transmission Oil Temp
123.89 ± 2.78°C
(255 ± 9°F)
112.78°C MIN
(235°F MIN)
N.C.
7X6212 Brake Accumulator Press
5850 kPa
(850 psi)
5200 ± 170 kPa
(750 ± 25 psi)
*
8C9969 Implement Hydraulic Oil Temp (Perf Mon)
101 .67 ± 2.78°C
(212 ± 37.5°F
93.33°C MIN
(200°F MIN)
N.C.
8N1693 Engine Coolant Temp (Start Aid)
37.8 ± 2.8°C
(100 ± 5°F)
26.7°C MIN
(80°F MIN)
N.C.
8T9705 Steering Oil Temp (Perf Mon)
82.22 ± 2.78°C
(180 ± 9°F)
74°C MIN
(165°F MIN)
N.C.
9X5322 Differential Lube Press
90 kPa Max
(13 psi)
35 ± 20 kPa
(5 ± 3 psi)
*
* = Pins 1-2 N.O.; Pins 1-3 N.C.
N.O. = NORMALLY OPEN N.C. = NORMALLY CLOSED
Connectors
Vehicle
Location
Harness And/Or Components
Schematic
Location
Connectors
Vehicle
Location
Harness And/Or Components
Schematic
Location
SS - 8R7668 A - 8R7096
Performance Monitor M - 3W9272
B - 8R9196 B - 8R9196
R - 8R9192 C - 8R3716
B - 8R9196 B - 8R9196
SS - 8R7668 E - 3W8746
A - 8R7096 C - 8R3716
B - 8R9196 EE - 3W8844
K - 4E5165 C - 8R3716
Draft Control FF - 3W8843
A - 8R7096 N - 3W9273
Turn/Hazard/Horn Switch P - 8R8113
B - 8R9196 M - 3W9272
H - 3W8747 Front Wiper Motor
N - 3W9273 B - 8R9196
Q - 3W9271 RADAR
A - 8R7096 B - 8R9196
Key Switch F - 3W8749
A - 8R7096 M - 3W9272
S - 7T8908 Rear Wiper Motor
B - 8R9196 N - 3W9273
C - 8R3716 P - 8R8113
N - 3W9273 N - 3W9273
Radio P - 8R8113
T - 3W8752
B - 8R9196
V - 8R8789
K - 4E5165
A - 8R7096
M - 3W9272
A - 8R7096
Front Wiper Switch
B - 8R9196
J - 3W8751
T - 3W8752
Trailer Connector
Vehicle locations are repeated for connectors located close together.
* = Connector is located at the component.
D-9
A-5
C-12
C-11
D-9
B-6
E-3
F-3
E-2
F-2
D-9
C-9
D-12
B-11
B-6
C-4
A-11
C-4
E-3
D-9
F-10
E-10
D-4
D-10
E-4
B-10
C-8
A-12
F-8
C-5*
8 Contacts
7 Contacts
6 Contacts
5 Contacts
4 Contacts
*
*24 Contacts
13 Contacts
10 Contacts
9 Contacts
Harness Connector Location Chart
40 Contacts
37 Contacts
25 Contacts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
7
A
3
1
5
6
8
9
18
11
12
14
15
13
16
B
C
4
2
17
10
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
7
Machine Connector And Component Locations
CHALLENGER
Vehicle
Location
Component
Schematic
Location
Vehicle
Location
Component
Schematic
Location
1 Alternator C-2 19 Sensor - Engine Speed E-2
2 Batteries C-1 20 Sensor - Fuel Level (Perf Mon) A-10
3 Breaker - Alternator (135A) B-2 B Sensor - Hitch Handle Position B-10
3 Breaker - Main (135A) B-2 21 Sensor - Hitch Position B-12
A Breaker - Running Lamp (15A) F-7 22 Solenoid - Air Conditioner Clutch C-3
4 Control - Draft B-10 23 Solenoid - Hitch B-12
A Flasher F-5 24 Solenoid - Start Aid D-2
A Fuse Block F-6 C Speaker - Left E-9
A Gauge - Coolant Temp D-7 C Speaker - Right B-9
A Gauge - Oil Press D-7 A Switch - Start Aid E-8
A Gauge - Steering Oil Temp C-7 A Switch - Air Conditioner Selector B-9
A Gauge - Transmission Oil Temp C-7 C Switch - Auxiliary 1 B-9
A Horn - Alarm D-10 C Switch - Auxiliary 2 B-9
5 Horn - Forward Warning B-1 A Switch - Blower B-8
A Lamp - Brake Accumulator D-7 25 Switch - Brake Accumulator Press A-7
A Lamp - Differential Lube D-7 26 Switch - Engine Coolant Temp (Start Aid) D-3
A Lamp - Implement C-10 27 Switch - Differential Lube Press A-8
A Lamp - Low Fuel D-7 B Switch - Draft On/Off/Set B-10
A Lamp - Park Brake D-7 C Switch - Flood Lamp C-9
A Monitor - Performance D-10 A Switch - Front Wiper C-4
6 Motor - Blower B-3 28 Switch - Fuel Level A-6
6 Motor - Blower C-3 28 Switch - Fuel Level (Perf Mon) A-5
7 Motor - Front Wiper C-9 B Switch - Hookup B-11
8 Motor - Rear Wiper C-11 Switch - Implement Hydraulic Oil Temp
9 Motor - Starting B-2 (Perf Mon)
10 Radar (Perf Mon) A-4 30 Switch - Key C-5
C Radio D-9 B Switch - Neutral Start C-11
A Relay - Forward Horn F-5 31 Switch - Parking Brake C-10
A Relay - Front Wiper B-5 31 Switch - Parking Brake (Perf Mon) C-10
11 Relay - Main Power A-2 B Switch - PTO C-10
11 Relay - Start A-2 A Switch - Rear Wiper D-8
A Relay - Trailer Left Turn D-5 32 Switch - Refrigerant B-2
A Relay - Trailer Right Turn D-5 C Switch - Running Lamp C-9
A Relay - Turn D-5 30 Switch - Running Lamp Dimmer C-5
A Relay - Turn D-6 33 Switch - Steering Oil Temp (Perf Mon) B-12
6 Resistor - Blower Motor Speed B-3 6 Switch - Thermostat B-3
A Resistor - Flasher Load D-5 B Switch - Throttle B-10
12 Sender - Coolant Temp E-2 34 Switch - Transmission Oil Temp A-5
13 Sender - Oil Press F-2 30 Switch - Turn/Hazard/Horn C-8
14 Sender - Steering Oil Temp B-12 A Tachometer C-7
15 Sender - Transmission Oil Temp A-5 C Terminal - Customer (10A) B-9
16 Sender - Transmission Speed (Perf Mon) A-5 A Terminal - Customer (30A) F-7
17 Sensor - Coolant Temp (Perf Mon) E-2 A Voltmeter D-7
18 Sensor - Engine Oil Press (Perf Mon) E-2
Vehicle locations are repeated for components located close together.
A = Components in operator compartment - Dash.
B = Components in operator compartment - Console.
C = Components in operator compartment - Headliner.
Component Location Chart
29 C-12
1
1
1
2
3
4
5
6
7
8
9
10
11
12
13
21
17
17
18
19
20
15
16
17
10
6
14
FLASHER LOAD RESISTOR
3E0108
635-BR518-OR
IDENT CODE
2
K
K K
K
1
A220-BK
KV
450-YL
5
4
6
B997-PK
BK-18
WH-18
1
2 2
1
A
SS
RR
SS
SS
SS
86
595-YL
87A
87
30
87
87A
30
868585
BR
FRONT
WIPER
RELAY
9W2494
FRONT
WIPER
RELAY
9W2494
200-BK
501-GN
SS
SS
596-WH
500-BR
596-WH
502-OR
UU
200-BK
CC
00
STD
STD
E-11RR
B-2
D-8UU
01
13
14
19
24
30
40
ALARM
HORN
9X5316
410-WH
15
OIL PRESS
GAGE
4W6353
COOLANT
TEMP SENDER
7N8532
B
B
OIL PRESS
SENDER
302010
28
614-PU
432-PK
B401-GY
B403-BU
B402-YL
3
2 1
01
003W9377
8R7668
02
00
02
9W3073
02
00
00
00
01
00
00
01
00
01
03
018R9192
02
00
02
00
00
02
450-YL
3W7535
8R2020
2
3W1569
3
1
7T8908
B401-GY
01
B403-BU
8Y0557
B402-YL
D-10
432-PK
SS
F
E
D
2
1 11
0
1
D
D
P
K
K
K
L12L12
P
P
J
J
J
L12
L12
L5
L3
L3
L5 L5
L3
L5
L3
L8
L9
L9
L9
L3 L3
L5
L9
L9
L32
L10
L37
630-GY
200-BK
608-GN
BK-18
RD-18
N
L19
L20
L17
L16
L15
L21
L24
L23
L28
L27
A
L27
L28
L28
L27L15
L16
L17
L26
L26
L25
A
A
A
A
A
L18
L17
123-WH
L24
L29
R
R
R
R
R
L13
L13
P
P
P
P
P
L23
L24
R
R
R
L22
L21
L25
L22
A
L18
L19
A
N
L20
L18
L13
403-GN
L35
FRAME
BK-000
L12
L12
584-YL
130-GN-14
130-GN
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
D & CHIGH
B,C & DLOW
B & COFF
FRONT WIPER SWITCH
TERMINALS
CONNECTED
3W8751
C-83W9278JJ
B-8
A
178-GN-8
12V
BATTERY
3T5760
12V
BATTERY
3T5760
BULB
6T7157
BULB
6T7157
BULB
6T7157
BULB
6T7157
FUSE
LOWER PANEL
GROUND
SWITCH
POSITION
L10
614-PU
102-BU
L15
GN
OR
BU
BK
WH
BK
8
7
177-OR-8
L16
N
BULB
6T7157
FLOOD LAMP
6T7160
BULB
6T7157
BULB
6T7157
L10
177-OR-8
L11
L11
BK-18
RD-18
L27
L20
15A
15A
VIEW OF SW
TERMINALS
200-BK
L23
L26
3
2
1
L21
BULB
7M9957
3W9279HH
F-7
X
B-1
8R2021
JJ
HH
200-BK
TO
CAB
M
2
1
BK
RD
635-BR
3
2
1
L21
888-PK
870-OR
871-BU
872-YL
200-BK
153-WH
7
2
200-BK
200-BK
L23
NOTE C: PROVIDED WITH PERFORMANCE MONITOR
OPERATOR STATION
OPERATOR STATION
GAGE PANEL
GAGE PANEL
OPERATOR STATION
OPERATOR STATION
L31
OPERATOR STATION
U
T B
E
T
T
F B
V
V
G B
H
H
B
L28
30
87A
87
8685
86
86 86
86 85
85
85
85
87
87
87
87
87A
87A
87A
L31
L19
L14
L8
L32
NOTE E: CLOSED WHEN DOOR OPEN
NOTE D: SHOWN WITH A FULL FUEL TANK
AA
L33
L32
L33
L14
TERMINALS
CONNECTED
D
SWITCH
POSITION
HITCH
POSITION
SENSOR
9X9646
HITCH
SOLENOID
7T9839
M
YL
BU
OR 3
2
888-PK
200-BK
153-WH
870-OR
871-BU
872-YL
153-WH
200-BK
888-PK
872-YL
871-BU
870-OR
L8
1
1
2
3
GROUND
+V
SIGNAL
RD-18
BK-18
WH-18
B
L29
RADIO
9X3509
LEFT
SPEAKER
6T7695
DOME
LAMP
9W0606
DOOR
DOME
LAMP SW
(NOTE E)
6T8069
N
P
P
P
N
N
N
N
N
N
N
W
P
P
M
A
A
87A
30
STEERING
OIL TEMP GAGE
7W9647
TRANSMISSION
OIL TEMP GAGE
7W9650
TACHOMETER
7T7074
LAMP
8M6176
LAMP
8M6176
LAMP
8M6176
FUSE
10A - 9W1442
20A - 9W1446
FRONT
WIPER
6T6529
TURN/HAZARD/
HORN SW
6T6069
BLOWER SW
7T9530
RIGHT
SPEAKER
6T7695
124-GN
512-GN
511-BR
A
A B
10A - 9W1442
15A - 9W1441
20A - 9W1446
30A - 8T9636
FUSE
BLOCK
9W2035
FORWARD
HORN
RELAY
9W2494
FLASHER
7T4848
30
B
B
Z
MWM
A A A
30
A
A S
C
S
B
C
C
C
C
EB
B
KK
00
NEG
01
L29
A
A
A
A
B-1
BB
POS
AA
X
S
CABLE AS
B-6W
WIRE AS.
C-4
D-4
S
R
D-9
E-8
B-6
C-2
A-10
A-11
A-12
A-12
C-12
F-3
D-10
E-3
E-4
E-4
Q
P
N
M
L
K
J
H
G
F
E
D
C
B
A
A-2
02
GG
F-2
12
11
10
9
8 7
6
5 4
3
2 1
KEY SW
6T6068
200-BK-14
200-BK-14
200-BK-14
200-BK-10
TURN
RELAY
9W2494
Q
Q
EE
605-YL
FF
635-BR
GG
Y
L30
Y
1
2
DD DD
GGGG
H
GN
GY
BR
BULB
5M8034
LEFT
TURN LAMP
9W2239
BULB
5M8034
RIGHT
TURN LAMP
9W2239
OR
4
2
3
1
H
L
L31
L22
L27
L25
H
3W8843
L30
L30
L25
FF
E-2
L13
L12
L11
3W8844EE
A-23W8753DD
A-23W8754CC
3W8756
3W9280
A-6
A
501-GN
01
500-BR
3W8845
1
RADIO
ANTENNA
9W3072
FLOOD LAMP
6T7160
Z
B-2
614-PU
200-BK
FLOOD LAMP
6T7160
3W8757
WITH PERFORMANCE MONITOR
NOTE B: REPLACES STANDARD COMPONENT WHEN EQUIPTED
D-12T
Y
3W8752
IMPLEMENT
HYDRAULIC
OIL SW
8C9969 (NOTE C)
STEERING
OIL SW
(NOTE B)
8T9705
BULB
6T7157
FLOOD LAMP
6T7160
8
7
1
9
10
2
6
5
3
4 153-WH
200-BK-10
174-PK-10
3W8750
614-PU
201-BK-18
3W8749
614-PU
RUNNING
LAMP BREAKER
9M9085
15A
102-BU-14 101-RD-14
135-BU
+ BATTERY
HIGH
LOW
PARK
135-BU
595-YL
3W8746
3W3111
03
8R8789
130-GN
4E5165
FRONT
WIPER SW
9X3266
PERFORMANCE
MONITOR
PANEL
9X4781
200-BK-4
START
AID SW
6T6066
REAR
WIPER SW
7T2081
CIGAR
LIGHTER
HOUSING
7G9935
CIGAR
LIGHTER
4K1245
119-PK
508-PU
509-WH
200-BK-14
614-PU
ANTENNA
AUX
SW 2
6T3990
AUX
SW 1
6T3990
RUNNING
LAMP SW
6T5814
FLOOD
LAMP SW
6T5814
FLOOD
LAMP SW
6T5814
A/C
SELECTOR SW
6T3990
TRAILER
RIGHT
TURN
RELAY
9W2494
TRAILER
LEFT
TURN
RELAY
9W2494
2
1
(NOTE A)
200-BK
200-BK-14
200-BK
B-12
D-12
3
200-BK-14
200-BK
M
G-2
G-1
30
A
611-PU
619-GN
611-PU-14
619-GN
611-PU-14
IGN1
610-OR-14
1
2 635-BR
540-WH
539-BU
310-PU
123-WH
TN
LT GN
E
H
635-BR
320-YL
635-BR
539-BU
540-WH
540-WH
539-BU
200-BK
200-BK
200-BK
200-BK
605-YL
606-GY
540-WH
539-BU
L22
172-GN
606-GY
605-YL
L30
518-OR
518-OR
L36
L34
172-GN
172-GN
605-YL
635-BR
MOTOR
558-GN
-T
635-BR
557-YL
L27
175-PK
175-PK
175-PK
635-BR
605-YL
608-GN
630-GY
542-BU
541-GN
614-PU
WASH A & E
1
2
512-GN
511-BR
541-GN
542-BU
610-OR-14
614-PU
130-GN
102-BU-14
630-GY
608-GN
607-PK
620-WH
508-PU
200-BK
200-BK
1
3
2
5
4
3
2
4
1
4
2
3
1
CUSTOMER
TERMINAL (30A)
6L5855
V
2
1
5
8
6
10
4
3
7
9
2
1
U
03
01
01
00
610-OR-14
630-GY
541-GN
608-GN
614-PU
542-BU
130-GN
102-BU-14
605-YL
635-BR
607-PK
620-WH
3
L35
L35
COMMON
COMMON
L35
L35
L34
L36
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
IMPLEMENT LAMP AS
6T2040
(LAMP 6T7298)
GROUND 3
1
2
6
4
5
BK
LIGHTS
MEMORY
RIGHT SPKR
LEFT SPKR
LEFT SPKR
+ BATTERY
RIGHT SPKR
L36
129-BU-14
310-PU
521-YL
522-WH
BK
4
3
1
2
466-WH
201-BK
201-BK
404-YL
428-OR
3
1
2
428-OR
4
25
15
16
13
11
9
1
23
3
2
7
5
6
8
17
19
18
21
12
24
22
20
10
14
L36
L36
200-BK
614-PU
604-OR
1
5
2
4
3
201-BK
200-BK
611-PU-14
619-GN
614-PU
604-OR
611-PU-14
463-YL
153-WH
608-GN
630-GY
619-GN
614-PU
604-OR
200-BK-4
200-BK-14
200-BK200-BK
201-BK
3
5
4
1
8
7
2
4
3
5
2
1
2
1
BK
IGN3
ACC
SOL
B-3
B-2
B-1
XMSN
SPEED
SENDER
(NOTE C)
9X5393
200-BK
MAIN
BREAKER
7T9251
MAIN
BREAKER
7T9251
ALTERNATOR
BREAKER
7T9251
TO
ENGINE
TO
FRAME
START RELAY
302266
6
5
466-WH
5
4
4
3
178-GN-8
119-PK
503-BR
504-YL
505-BU
606-GY
635-BR
118-GY
500-BR
501-GN
502-OR
200-BK-14
6
5 4
3
2
517-BU
153-WH
456-BR
306-GN
419-YL
419-YL
A
Q
306-GN
200-BK-4
153-WH
201-BK
1
200-BK
306-GN
456-BR
419-YL 6
630-GN
200-BK
608-GN
3
2
2
178-GN-8
178-GN-10
178-GN-10
306-GN
200-BK-4
456-BR
201-BK
4
154-WH-14
522-WH
148-WH-14
200-BK-14
517-BU
516-GN-14
579-BR-14
580-OR-14
B
614-PU
567-WH-14
569-PK-14
200-BK-14
516-GN-14
517-BU
517-BU
200-BK-14
516-GN-14
580-OR-14
579-BR-14
L
1
RADAR
(NOTE C)
7T2633
201-BK
201-BK201-BK
201-BK
201-BK
201-BK
200-BK
404-YL
200-BK
466-WH
463-YL
469-GN
228-BK
1
447-PK
463-YL
614-PU
414-PK
710-GN
123-WH
614-PU
604-OR
459-PK
541-GN
L3
L2
L5
614-PU
L32
L8
L2
200-BK
542-BU
200-BK-14
123-WH-14
558-GN
557-YL
614-PU
604-OR
B
611-PU-14
619-GN
614-PU
604-OR
604-OR
614-PU
557-YL
558-GN
200-BK-14
542-BU
541-GN
459-PK
201-BK 5
6
7
8
1
2
3
463-YL
447-PK
228-BK
469-GN
463-YL
463-YL
611-PU-14
619-GN
200-BK
614-PU
604-OR
200-BK
619-GN
611-PU
604-OR
614-PU
200-BK
619-GN
611-PU
460-BU
457-PU
201-BK
123-WH
710-GN
414-PK
463-YL
463-YL
469-GN
228-BK
447-PK
BLOWER
6T1377
513-OR
200-BK-14
518-OR
172-GN
GROUND
+ BATTERY
OUT (LAMP)
177-OR-6
200-BK
607-PK
620-WH
620-WH
607-PK
200-BK
B
Q
322-GY
101-RD-10
200-BK-4
307-OR
306-GN
308-YL
178-GN-8
177-OR-6
200-BK-2
200-BK
6
608-GN
630-GY
30A
2
1
2
114-GN
320-YL
START AID
SOLENOID
3T9493
COOLANT SW
8N1693
BK-18
BK-18
2
1
310-PU
311-WH
200-BK
T-
450-YL
201-BK
450-YL
01
450-YL
3
01
F-8
V
450-YL
201-BK
A
ENGINE
SPEED
SENSOR
5N9292
322-GY
20A
20A
15A
10A
10A
10A
10A
10A
10A
V
L18
1
200-BK
B995-GY
B996-BR
177-OR-10
177-OR-10
177-OR-10
154-WH-14
148-WH-14
129-BU-14
124-GN
3 2
200-BK
200-BK
153-WH
114-GN
119-PK
118-GY
174-PK-10
105-BR-14
172-GN
172-GN
172-GN
457-PU
460-BU
200-BK
STOP
LAMP SW
7T6141
153-WH
175-PK
TRANSMISSION
OIL SW
7N7854
130-GN
4
450-YL
130-GN-14
GG
450-YL
+BAT
2
2
-BAT
1
HITCH POS
3
S
7
DOWN SOL
542-BU
S
L32
541-GN
500-BR
118-GY
502-OR
509-WH
611-PU-14
619-GN
614-PU
604-OR
200-BK
542-BU
541-GN
557-YL
558-GN
200-BK-4
522-WH
521-YL
322-GY
308-YL
101-RD-10
178-GN-8
177-OR-6
310-PU
177-OR-10
101-RD-10
608-GN
630-GY
403-GN
513-OR
522-WH
310-PU
200-BK
458-PK
1
466-WH
710-GN
201-BK
1
2
WH
BK
414-PK
201-BK201-BK
414-PK 2
1
469-GN
228-BK
B
B
7X6212
BRAKE ACC
PRESSURE
SWITCH
123-WH
460-BU
457-PU
428-OR
201-BK
710-GN
L10
414-PK
432-PK
447-PK
B403-BU
B401-GY
B402-YL
201-BK
B403-BU
432-PKB402-YL
B401-GY
201-BK
L10
9X5322
DIFF LUBE
PRESSURE
SWITCH
BK
RD
BU
BU-18
RD-18
463-YL
L37
2
L37
B
466-WH
201-BK
T-
T-
428-OR
428-OR
-T
FUEL
LEVEL SW
(NOTES B&D)
9W2403
T-
T-
FUEL
LEVEL SW
(NOTE D)
7X1161
428-OR
201-BK
BK-18
BK-18
3
2
1
L1
L4
L7
608-GN
630-GY
4
200-BK
200-BK
608-GN
630-GY
DD
608-GN
200-BK
630-GY
608-GN
200-BK
630-GY
608-GN
630-GY
200-BK
200-BK
614-PU
200-BK
604-OR
2
1
LAMP AS.
9W2407
STOP
LAMP
9W2471
TAIL
LAMP
5M8034
3
1
2
604-OR
200-BK
614-PU
THERMOSTAT SW
9X5445
RESISTOR
7T7687
200-BK-4
9
201-BK
201-BK
200-BK-14
200-BK-4
604-OR130-GN
KK
3
135-BU
105-BR-14
123-WH-14
307-OR
308-YL
604-OR
614-PU
PANEL
LAMP
8M6176
PANEL
LAMP
8M6176
RIGHT TURN
IND LAMP
8M6176
HIGH BEAM
IND LAMP
8M6176
LEFT TURN
IND LAMP
8M6176
PANEL
LAMP
8M6176
PANEL
LAMP
8M6176
PANEL
LAMP
8M6176
614-PU
614-PU
635-BR
635-BR
611-PU
605-YL
606-GY
614-PU
614-PU
614-PU
307-OR
30A
200-BK
176-YL
176-YL
147-PU
146-GY
135-BU
116-BR
116-BR
115-PK
115-PK
TAIL
LAMP
9W2471
20A
20A
10A
STOP
LAMP
5M8034
608-GN
620-WH
630-GY
607-PK
5
LAMP AS.
9W2408
3
2
2
460-BU
457-PU
201-BK
123-WH 1
2
3
4
RD
BK
GN
WH
+BATTERY
GROUND
SIGNAL
PROGRAM
ALTERNATOR
9X9096
REFRIGERANT SW
5V5698
STARTER
9W0058
521-YL
513-OR
109-OR-4
101-RD-2
BK-000
B
304-WH-10
RD-000
FLOOD
LAMP
6T7160
FLOOD
LAMP
6T7160
200-BK
200-BK
620-WH
607-PK607-PK
200-BK
620-WH
B
135A
200-BK-4
R
200-BK-14
Q
458-PK
221-BK
441-OR
463-YL
463-YL
1
WITH DRAFT CONTROL, PLUG SPEED
SENSOR INTO HARNESS V AND PLUG
HARNESS V RECEPTACLE INTO
HARNESS C PLUG
135A
C
1
2
5
3
4
6
3
458-PK
220-BK
464-GY
201-BK
463-YL
3
BLOWER
6T1377
620-WH
200-BK
607-PK
200-BK-14
607-PK
620-WH
200-BK
200-BK
FLOOD
LAMP
6T7160
FLOOD
LAMP
6T7160
HIGH/LOW
BEAM
HEAD
LAMP
9W0049
HIGH
BEAM
HEAD
LAMP
9W0050
611-PU
200-BK
619-GN619-GN
611-PU
200-BK
AIR
CONDITIONER
CLUTCH
SOLENOID
7T7825
200-BK-4
BK 513-OR
FORWARD
WARNING
HORN
7T0635
522-WH
178-GN-8
112-PU-6
112-PU-8
177-OR-6
109-OR-4
MAIN POWER
RELAY
9X0253
304-WH-10
307-OR
306-GN
200-BK
308-YL
101-RD-10
109-OR-10
135A
109-OR-4
101-RD-2
322-GY
200-BK
Z
L34
L2
SIGNAL
-V
+V
COOLANT
TEMP
SENSOR
(NOTE B)
9X8220
6
7
8
5
L33
L34
L1
611-PU
YL-18
GN-18
BK-18
RD-18
SIGNAL
-V
+V
ENG OIL
PRESSURE
SENSOR
(NOTE B)
9W1807
2
4
3
1
RD-18
BK-18
GN-18
YL-18
56
6
130-GN
102-BU-14
614-PU
610-OR-14
450-YL
T-
200-BK-14
220-BK
522-WH
464-GY
200-BK-14
201-BK
522-WH
200-BK-14
516-GN-14
516-GN-14
517-BU
154-WH-14
580-OR-14
579-BR-14
148-WH-14
WH/RD-14
BK-14
154-WH-14
463-YL
580-OR-14
450-YL
148-WH-14
579-BR-14 BK-14
221-BK
WH/RD-14
441-OR
B
200-BK-4
200-BK-14
201-BK
201-BK
428-OR
457-PU
37
36
35
34
33
32
31
30
21
11
20
7
B402-YL
B403-BU
B401-GY
432-PK
29
404-YL
403-GN
123-WH
414-PK
447-PK
469-GN
463-YL
201-BK
450-YL
441-OR
221-BK
228-BK
464-GY
220-BK
458-PK
466-WH
710-GN
306-GN
459-PK
456-BR
419-YL
460-BU
4
1
2
8
9
3
27
25
28
24
10
26
6
5
12
13
18
14
15
16
17
19
22
614-PU
SIG
+
-
614-PU
614-PU
123-WH
201-BK
123-WH
123-WH
201-BK
201-BK
123-WH
BK-18
5
GRD
SEND
IGN
TO
UPPER
PANEL
414-PK
710-GN
123-WH
201-BK
457-PU
460-BU
GRD
SEND
IGN
B403-BU
B402-GY
441-OR
LOW
FUEL
8M6176
PARK
BRAKE
8M6176
450-YL
428-OR
466-WH
464-GY
419-YL
414-PK
441-OR
201-BK
123-WH
VOLTMETER
4W2142
COOLANT
TEMP GAGE
7W9648
LAMP
8M6176
LAMP
8M6176
23
LAMP
8M6176
GAGE PANEL
L6 L6
L7
L14
L4
L4
L14
L14
L7
L7
TRAILER
CONNECTOR
9G8887
2
7
5
3
1
6
4
200-BK-14
200-BK-14
200-BK-14
606-GY
605-YL
2
29
12
DIFF LUBE PRESS
BRAKE ACC PRESS
ALARM SIGNAL
-BATTERY
201-BK
410-WH
201-BK
17
22
23
1
10
39
36
20
7
34
8
2
35
21
16
33
28
26
31
3
27
6
11
32
9
25
4
18
5
38
B401-GY-18
432-PK-18
37
36
35
34
33
614-PU614-PU
D
2
1
27
32
PANEL
LAMP
8M6176
PANEL
LAMP
8M6176
PANEL
LAMP
8M6176
31
30
37
1
1
4
3
2
29
26
123-WH-18
FUEL LEVEL(-V)
+ BATTERY
ALTERNATOR
LW FUEL LEVEL
FUEL LEVEL
FUEL LEVEL (+V)
SNSR PRESENT
ENGINE SP
COOL.(SIG)
COOL. (-V)
ENG OIL(SIG)
STER OIL TEMP
RADAR
XMSN SPEED
XMSN OIL TEMP
XMSN NEUT
IMPL POS
PTO
HYD OIL
PARK. BRAKE
RDR ENABLE
ENG/METRIC
ENG OIL(-V)
OIL&COOL(+V)
228-BK-18
458-PK-18
403-GN-18
123-WH-18
172-GN
414-PK-18
447-PK-18
469-GN-18
635-BR
635-BR
200-BK-14
3W9271
8R9196
8R8114
8R3716
8R8113
463-YL-18
201-BK-18
450-YL-18
441-OR-18
221-BK-18
464-GY-18
220-BK-18
466-WH-18
457-PU-18
710-GN-18
409-OR-18
459-PK-18
456-BR-18
404-YL-18
419-YL-18
460-BU-18
4
1
2
8
9
3
24
5
7
21
10
6
11
20
12
13
18
14
15
16
17
19
22
23
428-OR-18
-BATTERY
ID CODE 0
ID CODE 1
201-BK-18
224-BK-18
223-BK-18
222-BK-18
-BATTERY
J K
25
3W9273
3W9272
8R7096
3W8747
Y
200-BK
200-BK
MOTOR
BATMTR
SG
200-BK
611-PU
B+
POSNEG
611-PU
200-BK
CONNECT 428-OR TO XMSN OIL SW
WHEN EQUIPTED WITH PERFORMACE MONITOR
CHG
611-PU
619-GN
T-
5
4
1
2
Y
B
619-GN
200-BK
611-PU
HIGH
BEAM
HEAD
LAMP
9W0050
HIGH/LOW
BEAM
HEAD
LAMP
9W0049
200-BK
504-YL
503-BR
119-PK
505-BU
B
201-BK
501-GN
10A
10A
MOTOR
MOTOR
A
464-GY
200-BK
200-BK
2
BRAKE
ACC
8M6176
614-PU
GRD
IGN
614-PU
614-PU
P
201-BK
GRD
SEND
IGN
GRD
SEND
IGN
123-WH
201-BK
201-BK
DIFF
LUBE
8M6176
200-BK
200-BK
3
1
T-
MOTOR
L
H
1
3
2
4
OR
BR
GY
GN
428-OR
AR
RUNNING
LAMP
DIMMER SW
6T6067
513-OR
HOOKUP SW
6T3990
200-BK
PTO SW
3T3132
NEUTRAL
START SW
9G2795
2
1
888-PK
870-OR
871-BU
872-YL
890-PU
201-BK
419-YL
456-BR
306-GN
200-BK
201-BK
456-BR
306-GN
200-BK
201-BK
201-BK
201-BK 419-YL
200-BK
153-WH
889-GY
889-GY
PARK
BRAKE SW
(NOTE B)
3T3132
PARK
BRAKE SW
3T3133
419-YL201-BK
1
505-BU
503-BR
119-PK
504-YL
2
3
GROUND
+V
SIGNAL
RD-18
BK-18
WH-18
153-WH
200-BK200-BK
153-WH
UP SOL
HANDLE POS
HOOK-UP SW
DRAFT
ON/OFF/SET SW
9X5422
FP CLOCK
FP DATA
HITCH HANDLE
POSITION
SENSOR
9X9646
SET POINT
DRAFT SW
THROTTLE SW
9G2795 DRAFT
CONTROL
3E0080
BB
ENG SP
SOL COMM
15
8
4
11
5
6
22
13
9
14
10
18
19
20
21
17
16
12
23
24
5
153-WH
200-BK
872-YL
1
2
871-BU
870-OR
TRANSMISSION
OIL SENDER
7W9943
STEERING
OIL SENDER
7W9943
REAR
WIPER
6T6529
FUEL LEVEL
SENSOR
(NOTE C)
9W3075
888-PK
890-PU
AA
200-BK
521-YL
3
1
2 200-BK
130-GN
602-WH
BK-18
YL-18
WH-18
J
594-PU
635-BR
606-GY
123-WH
118-GY
428-OR
TURN SWITCH
450-YL
5
3
2
CUSTOMER
TERMINAL (10A)
9W0846
10A
20A
20A
10A
10A
10A
C
D
E
F
PU
WH
GY
YL
595-YL
PK B
594-PU
10A
200-BK
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
AND XMSN SHIFTER IN NEUTRAL
THIS IS THE SCHEMATIC FOR THE CH65 7T8883 CHG 02
IDENT PART NO. LOC
HARNESS AS.
C
B
A
2
1 11
0
1
9 8 7
9
8 7
6 5 4
6 5 4
3 2
1
F
E
D
3 2
1
C
B
A
L6
L6
L3L3
D31889
