Harness Connector Location Chart
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
A-6Y7376
Operator Monitor (EMS)
E-4
A - 6Y7376
Diagnostic Connector
F-7
9 Contacts
A - 6Y7376
C - 7T8326
D-6
G - 9U9458 Attachment
H - 9U9463 Attachment
C-7
G - 9U9458 Attachment
H - 9U9463 Attachment
C-B
G - 9U9458
Attachment Radio
B-4
7Contacts
A - 6Y7376
B-1011339
E-3
A - 6Y7376
B-1011339
D-3
A - 6Y7376
E - 9U9407
A-5
A - 6Y7376
Voltage Converter
E-3
5 Contacts
A - 6Y7376
M-6I8611
B-5
A-6Y7376
C-7T8326
D-5
A-6Y7376
G - 9U9458 Attachment
D-6
A - 6Y7376
N - 9W1816 Attachment
C-3
A - 6Y7376
Y - 6Y3416 Attachment
C-3
Machine locations are repeated for connectors located close together.
* = Connector is located at the component.
A = Connector in dash area.
B = Connector at relay panel.
D ¹ = Connector in headliner of operators compartment.
20 Contacts
8 Contacts
6 Contacts
4 Contacts
A
A
A
A
A
SENR4955
February 1993
D6H Series II Tractor
Electrical System
4RC5500-UP
6FC5500-UP
8FC5500-UP
1KD5500-UP
2KD5500-UP
3ED5500-UP
3ZF5500-UP
4YF5500-UP
5HF5500-UP
6CF5500-UP
6CF5500-UP
2TG5500-UP
3YG5500-UP
4GG5500-UP
4LG5500-UP
1FJ5500-UP
8ZHJ1-UP
9KJ1-UP
2DK5500-UP
5KK1-UP
6CK1-UP
7ZK1-UP
8KK1-UP
8SK1-UP
9LK1-UP
9RK1-UP
1YL1-UP
2BL1-UP
2TL1-UP
Printed in U.S.A.
©
1993 Caterpillar
All Rights Reserved
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
1
2
17
18
19
7
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
1
2
17
18
19
7
Machine Harness Connector And Component Locations
1
2
1
2
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Action (EMS) D-8 1 Sender - Hydraulic Oil Temp (Gauge) A-6 11
Alarm - Backup E-9 C Sender - Power Train Oil Temp (Gauge) B-2 12
Alternator B-1 2 Solenoid - A/C Clutch B-2 13
Batteries F-3 3 Solenoid - Start Aid F-2 14
Breaker - Alternator (60A) E-7 B Switch - Backup Alarm (CBS) D-7 C
Breaker - Blower Motor F-5 B Switch - Backup Alarm (DS) E-7 C ¹
Converter - Voltage E-3 C Switch - Blower Motor (A/C) B-3 A
Filter - Alternator B-5 A Switch - Blower Motor (Heater) C-3 5
Fuse - Front Dash and Dome (10A) E-7 B Switch - Disconnect F-3 3
Fuse - Key (10A) F-7 B Switch - Engine Coolant Temp (EMS) C-2 9
Fuses E-6 B Switch - Engine Coolant Temp (Start Aid) D-2 9
Gauges B-5 A Switch - Engine Oil Pressure (EMS) C-2 15
Ground - Module D-4 A Switch - Flood Lamp B-6 A
Horns - Front F-1 4 Switch - Forward Horn B-6 16
Lamp - Action (EMS) D-6 A Switch - Front and Dash Lamp C-6 A
Meter - Service B-5 A Switch - Fuel Press (EMS) C-2 17
Monitor - Operator (EMS) D-4 A Switch - Hydraulic Oil Temp (EMS) A-6 11
Motor - Blower (Heater) B-3 5 Switch - Key Start C-5 A
Motor - Starting A-2 6 Switch - Neutral Start (DD) B-9 18
Motor - Windshield Washer A-8 7 Switch - Neutral Start (PS with DS) D-7 C ¹
Motors - Blower (A/C) B-3, C-3 8 Switch - Neutral Start (PS with CBS) D-7 C
Motors - Wiper (Front & Left) C-4, E-7 D Switch - Power Train Filter Press (DS EMS) A-6 11
Motors - Wiper (Rear & Right) C-8, B-6 D Switch - Power Train Oil Temp (CBS EMS) C-2 19
Radios (12V & 24V) B-4 D ¹ Switch - Power Train Oil Temp (EMS) C-2 12
Relay - Main (Replaces Terminal Block) F-8 B Switch - Refrigerant Press F-2 13
Relay - Start F-6 B Switch - Start Aid C-6 A
Resistor - Blower Motor Speed (A/C) B-3 8 Switch - Test (EMS) D-6 A
Resistor - Blower Motor Speed (Heater) B-3 5 Switch - Thermostat (A/C) B-3 A
Resistor - Load F-6 B Switches - Wiper B-7, B-8 D ¹
Resistor - Starter to Diagnostic Connector B-2 6 Terminal Block F-6 B
Sender - Engine Coolant Temp (Gauge) C-2 9
Sender - Fuel (Gauge) D-9 10
A/C = Air Conditioning Machine locations are repeated for components located close
EMS = Electronic Monitoring System (operator monitor) together.
DS = Differential Steer Machines A = Components in dash area.
CBS = Clutch/Brake Steer Machines B = Components at relay panel.
PS = Power Shift C = Components in operator's left console.
PT = Power Train C ¹ = Components within diff steer control handle of operator's left
console.
D = Components in operator compartment.
D ¹ = Components in headliner of operators compartment.
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
2G0413 Resistor - Blower Motor Speed 5
9G1950 Resistor - Blower Motor Speed
Overall 2.0 ± .1
Tap 1.0±.05
7X6416 Resistor - Load 50 ± 5.0
6T2217 Resistor - Starter/Diagnostic Conn 150 ± 7.5
8T8813 Solenoid - A/C Clutch 14.4 ± 0.6
9G4365 Solenoid - Start Aid 6
¹ At room temperature unless otherwise noted.
Related Electrical Service Manuals
Form Number
Alternator (1005047):
Consist No.1005046
SENR2082
Consist No.1005045
SENR4130
Electronic Monitoring System
SENR2945
Starting And Charging Systems
SENR2947
Starting Motor (4N3181):
Consist No. 8C3651 (42-MT)
SENR3581
Consist No. 9X4447 (F8)
SENR4975
Consist No. 3T6305 (KE)
SENR3536
Title
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
3T5825 Power Train Oil Temperature (EMS)
129.4 ± 2.8°C
(265 ± 5°F)
118.3°C MIN
(245°F MIN)
Normally Closed
7N9785 Engine Coolant Temperature (EMS)
107.2 ± 2.8°C
(225 ± 5°F)
91.0°C MIN
(196°F MIN)
Normally Closed
7T0988 Engine Oil Pressure (EMS)
62 ± 21 kPa
(9.0 ± 3.0 psi)
38 ± 21 kPa
(5.0 ± 3.0 psi)
Normally Open
8N1693 Engine Coolant Temperature (Start Aid)
37.8 ± 2.8°C
(100 ± 5°F)
26.7°C MIN
(80°F MIN)
Normally Closed
8N2248
Hydraulic Oil Temperature
(Differential Steer EMS)
101.7 ± 2.8°C
(215 ± 5°F)
93.3°C MIN
(200°F MIN)
Normally Closed
8T8639 Refrigerant Pressure (A/C)
344.5 ± 34.5 kPa
(50 ± 5 psi)
172.3 ± 21 kPa
(25 ± 3 psi)
Normally Open
9G1300
Hydraulic Oil Temperature
(Clutch/Brake Steer EMS)
110.0 ± 2.8°C
(230 ± 5.0°F)
101.7°C MIN
(215°F MIN)
Normally Closed
9G3341
Power Train Oil Temperature
(Clutch/Brake Steer EMS)
51.7 ± 2.8°C
(125 ± 5°F)
43.0°C MIN
(110°F MIN)
Normally Closed
9W3187 Fuel Pressure (EMS)
93 ± 21 kPa
(13.5 ± 3.0 psi)
69 ± 21 kPa
(10.0 ± 3.0 psi)
Normally Closed
9X7781
Power Train Filter Pressure (EMS)
(Differential Steer EMS)
210 ± 70 kPa
(30 ± 10 psi)
—
—
Normally Open
Wire Description
Wire
Number
Wire
Color
Description
Power Circuits
101 RD
BAT
102 BU
HD LMP
105 BR
KEY SW
108 BU
AUX CKT
109 OR
ALT OUTPUT(+) TERM.
112 PU
MAIN POWER RELAY OUTPUT
113 OR
OPR MON PANEL B+ SWITCHED
114 GN
WARNING HORN (FORWARD)
116 BR
AUX CKT
121 YL
BACKUP ALARM TO LAMP
123 WH
AUX CKT
124 GN
A/C
129 BU
AUX CKT
Ground Circuits
200 BK
MAIN CHASSIS
201 BK
OPR MON PANEL CMS
203 BK
CHASSIS DIAGNOSTIC
207 BK
STARTER DIAGNOSTIC
Basic Machine Circuits
301 BU
STARTER NO.1 SOL
302 OR
STARTER NO.1 RESISTOR TO DIAGNOSTIC
304 WH
STARTER RELAY NO.1 OUTPUT
306 GN
STARTER RELAY COIL TO NEUT START SW
307 OR
KEY SW TO NEUT START SW
308 YL
MAIN POWER RELAY COIL
310 PU
START AID SW TO START AID SOL
311 WH
START AID SOL TO TEMP SW
321 BR
BCKP ALARM LAMP
322 GY
WARNING HORN (FORWARD)
Monitoring Circuits
403 GN
ALTERNATOR (R) TERM.
404 YL
OPR MON HYD OIL TEMP
405 GY
OPR MON OIL PRESS. (LO SETTING)
406 PU
OPR MON COOLANT TEMP
410 WH
OPR MON ACTION ALARM
411 PK
OPR MON ACTION LAMP
413 BR
OPR MON FUEL PRESS.
415 GN
OPR MON TEST SW
424 GY
OPR MON POWER TRAIN TEMP
426 BR
OPR MON POWER TRAIN OIL FILTER
441 OR
ENG COOLANT TEMP GAGE
442 GY
HYD SYSTEM TEMP GAGE
443 YL
POWER TRAIN TEMP GAGE
447 PK
FUEL LEVEL GAGE
Accessory Circuits
500 BR
WIPER - FRONT (PARK)
501 GN
WIPER - FRONT (LO)
502 OR
WIPER - FRONT (HI)
503 BR
WIPER - REAR (PARK)
504 YL
WIPER - REAR (LO)
505 BU
WIPER - REAR (HI)
508 PU
RADIO SPEAKER - LEFT
509 WH
RADIO SPEAKER - LEFT (COMMON)
510 YL
WASHER - PRIMER
511 BR
RADIO SPEAKER - RIGHT
512 GN
RADIO SPEAKER - RIGHT (COMMON)
513 OR
A/C COMPRESSOR/REFRIGERANT PRESS. SW
515 GY
BLOWER MOTOR (HI)
516 GN
BLOWER MOTOR (MEDIUM)
517 BU
BLOWER MOTOR (LO)
521 YL
A/C SW TO REFRIGERANT SW
522 WH
A/C CLUTCH TO THERMOSTAT SW
523 BR
WIPER - LEFT (PARK)
524 BU
WIPER - LEFT (LO)
525 GY
WIPER- LEFT (HI)
526 YL
WIPER - RIGHT (PARK)
527 GN
WIPER - RIGHT (LO)
528 PK
WIPER - RIGHT (HI)
592 BU
DC/DC CONVERTER POWER OUTPUT
A513 PK
DC/DC CONVERTER MEMORY OUTPUT
Lighting Circuits
600 BR
DASH BASIC
608 GN
FLOOD REAR
609 YL
FLOOD SIDE
610 OR
HEAD LAMP BASIC
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded
by being fastened to the machine.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
FUSE - A component in an electrical circuit that will open the circuit if too much current flows
through it.
REED SWITCH - A switch whose contacts are controlled by a magnet. A magnet closes the
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
SENDER - A component that is used with a temperature or pressure gauge. The sender
measures the temperature or pressure. Its resistance changes to give an indication to the
gauge of the temperature or pressure.
RELAY (Magnetic Switch) - A relay is an electrical component that is activated by electricity.
It has a coil that makes an electromagnet when current flows through it. The electromagnet
can open or close the switch part of the relay.
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too
much current flows through it. This does not destroy the circuit breaker and it can be reset to
become part of the circuit again.
SOLENOID - A solenoid is an electrical component that is activated by electricity. It has a coil
that makes an electromagnet when current flows through it. The electromagnet can open or
close a valve or move a piece of metal that can do work.
Harness And Wire Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plugand receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is
activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch)
that make electromagnet when current flows through them. It also has an internal switch that places
the latch coil circuit open at the time the coil latches.
1
1
2
D ¹
D ¹
D ¹
*
B
A
*
306-GN 1
2
8
3
1
4
5
6
7
2
6
4
1
1
2
7
3
6
2
9
5
4
8
1
5
6
4
1
7
3
2
6
5
4
3
2
1
3
2
1
1
2
4
5
6
3
4
1
2
3
8
7
5
1
2
F
E
D
9 8 7
C
B
A
9 8 7
6 5 4
6
5
3 2 1
F
E
D
3 2 1
C
B
A
3
6
5
4
2
6
4
3
2
5
3
2
1
2
1
3
2
1
2
1
2
3
5
4
1
1
2
1
3
1
P
200-BK
200-BK
200-BK
108-BU-14RADIO
102-BU-14
102-BU-14
108-BU-14
STARTER
RELAY
3E-0075
A
114-GN
129-BU
108-BU-14
123-WH
113-OR
BK-18
207-BK
302-OR
310-PU
101-RD-6
311-WH
201-BK
203-BK
102-BU-14
112-PU-14
112-PU
308-YL
308-YL
109-OR-6
200-BK
306-GN
A
A
AA
A
A
A
AA
A A
116-BR-14
A
A
A
A
A
A
A
A
A
A
BK-18
109-OR-14
109-OR-8
15A
308-YL
112-PU-14
MM
200-BK
LL
LOAD RESISTOR
7X-6416
410-WH
CIGAR LIGHTER
BLOWER MOTOR
BREAKER
3T-8728
20A
109-OR-6
200-BK
FUSE
HOLDER
4K-5122
TERMINAL BLOCK
6T-0751
ALT
CIRCUIT
BREAKER
9S-0173
200-BK
FRONT
DASH
DOME
FUSE
3K-8782
KEY
FUSE
3K-8782
10A
10A
LL
112-PU-14
200-BK
109-OR-6
A
112-PU-14
WIPER MOTORS
200-BK-14
308-YL
306-GN
200-BK-18
610-OR-18
BR
ALTERNATOR
FILTER
100-5052
GROUND
304-WH-8
124-GN-14
BR
BK
123-WH
200-BK
GR
L8
442-GY
442-GY
HYDRAULIC
OIL TEMP
GAGE
4W-0484
NOTE D
M
M
M
123-WH-18
200-BK-18
442-GY-18
442-GY442-GY-18
442-GY
442-GY
442-GY
C
442-GY
GRD
T
SEND
IGN
S
442-GY
442-GY
M
109-OR-6
200-BK
129-BU-14
HYDRAULIC
OIL TEMP
SENDER
8N-3844
515-GY-14
200-BK-14
OROPS HEATER
2
426-BR
201-BK
404-YL
4
109-OR-4
101-RD-6
201-BK
411-PK
415-GN
200-BK-14
200-BK
403-GN
405-GY
413-BR
406-PU
441-OR
201-BK
101-RD-6
404-YL
200-BK-14
426-BR
447-PK
322-GY
201-BK
200-BK
121-YL
321-BR
201-BK
522-WH-14
608-GN-14
114-GN
521-YL-14
322-GY
311-WH
521-YL-14
310-PU
610-OR-14
403-GN
522-WH-14
311-WH
310-PU
302-OR
207-BK
203-BK
124-GN-14
308-YL
105-BR
101-RD-6
109-OR-6
304-WH-8
102-BU-14
L3
L5
24V TO 12V
CONVERTER
NOTE G
3E-8645
A513-PK
592-BU
A
GROUND
GROUND
200-BK
200-BK
+24 V SWITCHED IN
+24 V BATTERY IN
102-BU-14
108-BU-14
+12 V SWITCHED OUT
108-BU-14
102-BU-14
+12 V MEMORY OUT
G
102-BU-18
200-BK-18
200-BK-18
102-BU-18
200-BK-18 2
1
3
FUSE
(NOTE C)
BK
A
477-PK
RD
200-BK-14
508-PU-18
509-WH-18
102-BU-14
RIGHT
SPEAKER
6T-7695
10A
108-BU-14
109-OR-8
101-RD
200-BK
112-PU-14
116-BR-14
DIAGNOSTIC CONNECTOR
60A
RELAY PANEL
RELAY PANEL
RELAY PANEL
121-YL
105-BR
20
19
18
17
16
509-WH-18
508-PU-18
512-GN-18
511-BR-18
509-WH-18
15
14
13
9
1
200-BK
5
509-WH-18
6
508-PU-18
8
512-GN-18
12
4
304-WH
304-WH
105-BR
105-BR
101-RD-14
101-RD-14
101-RD
101-RD-6
109-OR-6
114-GN
121-YL
113-OR
123-WH
109-OR
124-GN-14
109-OR-6
306-GN
FORWARD HORN
BACK-UP ALARM
OPERATOR MONITOR
GAGES & SERVICE METER
SIDE & REAR FLOOD LAMPS15A
10A
10A
15A
10A
112-PU-14
109-OR-14
112-PU-14
112-PU-14
109-OR-14
308-YL
308-YL
112-PU
207-BK
302-OR
310-PU
311-WH
SIGNAL
BATTERY
203-BK
7
2
10
200-BK-18
11
513-OR-14
424-GY
ROOF
GROUND STUD
307-OR
610-OR-14
310-PU
G
522-WH-14
441-OR
RD-18
3
201-BK
608-GN-14
A
306-GN
443-YL
200-BK
200-BK-14
200-BK
200-BK-8
108-BU
112-PU-14
A
200-BK
MM
A
A
A
T
108-BU
108-BU
24 VOLT RADIO
NOTE F
LH SPEAKER (-)
LH SPEAKER (+)
+24 VOLT
GROUND
RH SPEAKER (-)
RH SPEAKER (+)
ANTENNA
WH/BK, GN/BK-18
WH/GN-18
G
BK-18
GY/BK, PU/BK-18
GY/PU-18
G
511-BR-18
512-GN-18
200-BK-18
592-BU-18
A513-PK-18
508-PU-18
509-WH-18
509-WH-18
508-PU-18
A513-PK-18
592-BU-18
608-GN-14
200-BK-14
129-BU-14
200-BK-14
A513-PK-18
592-BU-18
200-BK-18
509-WH-18
508-PU-18
108-BU
523-BR-18
524-BU-18
525-GY-18
500-BR-18
501-GN-18
502-OR-18
108-BU
ANTENNA
9W-3072
108-BU
200-BK-18
525-GY-18
524-BU-18
523-BR-18108-BU
108-BU
108-BU
108-BU
108-BU
V 3T-1480 C-1
PK
BK
03
C-36Y-3416Y 01
00
1
3
2
200-BK-14
W 6Y-1200 B-8
BLOWER SW
1V-6652
4
200-BK-18
Y
512-GN-18
124-GN-14
Y
12 VOLT RADIO
NOTE F
200-BK-14
517-BU-14
515-GY-14
1
B-3
X
1
2
X
124-GN-14
200-BK
M
123-WH-18
447-PK-18
441-OR-18
200-BK-14
L2
OROPS HEATER
426-BR
200-BK-18
116-BR-14
610-OR-14
SERVICE METER
3E-9358
200-BK-18
501-GN-18
500-BR-18
502-OR-18
512-GN-18
511-BR-18
508-PU-18
511-BR-18
512-GN-18
W
L2
508-PU-18
502-OR-18
200-BK
200-BK
WH
L2
200-BK-14
U
306-GN
200-BR-14
121-YL
L7
108-BU
500-BR-18
501-GN-18
102-BU-14
201-BK
200-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
200-BK
201-BK
447-PK
L13
426-BR
426-BR
200-BK-14
610-OR-14
200-BK-14
200-BK-14
200-BK-14
200-BK-14
322-GY-14
200-BK-14
200-BK
D
D
L13
517-BU-14
RESISTOR
2G-0413
515-GY-14
515-GY-14
X
1
2
X
MOTOR
BK-14
WH/RD-14
BLOWER
7X-6279
517-BU-14
516-GN-14
515-GY-14
515-GY-14
FUEL
SENDER
3E-6261
441-OR
200-BK-14
200-BK-14
P
F
201-BK
201-BK
201-BK
V
B
2
1
109-OR-4
RD-00
BK-00
FF
FF
A
200-BK-8
509-WH-18
307-OR
306-GN
C
C
C C
L7
L8
L7
L13
C
C
C
CC
C
C
C
C
C
CC
G
EE
E
E
C
L8
M
M
M
Q
Q
Q
M
M
XX
XX
D
2
1
2
D
XX
XX
L4
B
B
B
B
XX
XX
L4
200-BK-14
D-78E-1538 02
019W-5275 D-7
E
L
NEUTRAL
START SW
9N-1750
NOTE D
321-BR
BACKUP ALARM SW
9N-1750
NOTE D
A
UU
200-BK
321-BR
NEUTRAL START SW
(POWER SHIFT WITH
CLUTCH/BRAKE STEER)
9W-1581
UU
UU
200-BK-18
200-BK-18
200-BK-18
200-BK-18
RR
G
L
H
LEFT
SPEAKER
6T-7695
A A
403-GN
608-GN-14
200-BK-14
Z
Z
H
H
01
03
H
NOTE F: 24 TO 12 VOLT CONVERTER NOT REQUIRED WITH
02
A
H
00
00
6Y-7376
403-GN
00
00
01
02
03
00
00
01
02
02
00
04
00
H
01
01
F-6
02
01
01
H
A-33T-2980FF
3T-8636
9U-9463
9U-9458
6I-8609
7P-6682
3P-2182
8S-1078
9G-8921
6Y-1201
CABLE AS.
ATCH WIRE, CABLE,
COMPONENT
B-5Q
8E-0937
CHG
MM
LL 8E-0936
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF,
AND XMSN SHIFTER IN NEUTRAL
A-2EE
F-3DD
F-3CC
F-39V-2098BB
F-3AA
E-99G-6259KK
A-23N-0539JJ
B-14D-6565
A-49U-8746NN
WIRE AS.
C-98E-1117S
C-26T-2934P
C-39W-1816N
B-56I-8611M
A-8L
B-9J
B-7H
B-7G
C-23T-8624F
A-59U-9407E
E-15G-9496D
D-6C
D-3101-1339B
LOC
HARNESS AS.
HH
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
1
2
A
P
01
H
H
L
511-BR-18
200-BK-18
108-BU
306-GN
X
H
H
H
102-BU-18
NOTE C: FUSES 10A - 3K8782; 15A - 8M8948
NOTE B: NORMALLY OPEN BEFORE INSTALLATION
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
H
H H
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
CONNECTOR
SYMBOL DESCRIPTION
HH
H
H
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
PART NO.IDENT
THIS SCHEMATIC IS FOR THE D6H TTT (6T-3295 CHG 06)
MAIN RELAY
3T-0376
(REPLACES TERMINAL
BLOCK AT F-6 WHEN
LOAD CURRENT EXCEEDS
10 AMPS)
BK/PK-14
BK-14
FLOOD
LAMP
9X-6775
H
L
ATCH
ATCH
ATCH
ATCH
-
+
+
-
8
7
ATCH
RR
608-GN-14
200-BK-14
121-YL
321-BR
BASE
3T0304
A
112-PU-14
112-PU-14
308-YL
ATCH
C
LEFT
WIPER
7X-6112
ACTION
ALARM
9G-9813
BACKUP ALARM
3T-1815
200-BK
C A
A
KK
S
C
A
AG
G
A
A
592-BU-18
310-PU
308-YL
307-OR
105-BR
608-GN-14
610-OR-14
116-BR-14
102-BU-14
L5
201-BK
411-PK
415-GN
608-GN-14
609-YL-14
CIGAR LIGHTER
9W-0335
200-BK
OPERATOR MONITOR
TEST SW
7N-8001
ACTION
LAMP
7N-1996
201-BK 415-GN
201-BK
411-PK
200-BK-14
KEY
START
SW
9G-7641
START AID SW
3T-3453
OPERATOR STATION
OPERATOR STATION
102-BU-14
BK-12
E
RD
BK 2
1
201-BK
410-WH
200-BK-18
310-PU 308-YL
308-YL
307-OR
105-BR
ON
OFF
B
S
C
R
BK-12
NN
201-BK
410-WH
108-BU-14
Q
C
C
592-BU-18
A513-PK-18
A513-PK-18
2
1
108-BU-14
116-BR-14
200-BK-18
304-WH-8
109-OR-6
101-RD-6
123-WH-18
610-OR-18
610-OR-18
610-OR-18
610-OR-18
LAMP
5D-0019
123-WH-18
123-WH-18
NN
DD
CC
BB
521-YL-14
513-OR-14
322-GY
200-BK-14
610-OR-14
D
D
114-GN
121-YL
113-OR
123-WH
F
F
V
V
B
B
GN
GN
HH
B
AA
A
A
BLUE
GREEN
BU
RR
2
1
GN
RD
WH
OR
YL
PK
BK
410-WH
307-OR
306-GN
A
JJ
201-BK
ATCH
306-GN
307-OR
A
UU
DIFF STEER TILLER
307-OR
BROWN
PURPLE
GRAY
BLACK
COLOR
105-BR
306-GN
308-YL
124-GN-14
203-BK
207-BK
302-OR
310-PU
311-WH
200-BK
ABBREV
PINK
200-BK
200-BK
200-BK
321-BR
306-GN
321-BR
YELLOW
108-BU-14
102-BU-14
200-BK
308-YL
308-YL-14
200-BK
109-OR-4
112-PU-14
112-PU-14
8
608-GN-14
H
7
H
A
129-BU-14
447-PK
523-BR-18
524-BU-18
525-GY-18
108-BU
DOME LAMP
8C-9678
GN
GY
BR
OR
4
2
3
1
H
L
OPERATOR STATION
200-BK-14
ENGINE
OIL SW
7T-0988
B B
443-YL
513-OR-14
200-BK-14
322-GY-14
HEAD
LAMP
9X-6874
12V BATTERY
3T-5760 STD
9G-4247 ATCH
12V BATTERY
3T-5760 STD
9G-4247 ATCH
BK-18
BK-18
START AID
SOLENOID
9G-4365
B
MODULE
GROUND
521-YL-14
FRAME
03
P
00
200-BK
DISCONNECT SW
7N-0718
FRONT
HORN
7T-0969
FRONT
HORN
7T-0970
OPERATOR
MONITOR
3T-9100
200-BK
BA
DD
CC
BB
AA
D
B
A B
BA
200-BK-14
200-BK-14
200-BK-14
101-RD-6
E
E
201-BK
109-OR-4
201-BK
522-WH-14
5
6
3
4
2
1
207-BK
302-OR
610-OR-14
201-BK
322-GY
405-GY
OPERATOR STATION
102-BU-14
610-OR-14
201-BK
STARTING
AID TEMP
SW
8N-1693
200-BK
310-PU
311-WH
404-YL
321-BR
121-YL
114-GN
608-GN-14
201-BK
426-BR
404-YL
447-PK
200-BK-14
201-BK
200-BK-8
123-WH
513-OR-14
413-BR
322-GY
322-GY
201-BK
RD-00
443-YL
447-PK
441-OR
G
200-BK
200-BK
441-OR
406-PU
413-BR
405-GY
403-GN
403-GN
PWR TN FLTR
426-BR
447-PK
101-RD-6
304-WH-8
109-OR-6
200-BK-8
302-OR
207-BK
304-WH-8
200-BK-8
MOTOR
522-WH-14
114-GN
121-YL
321-BR
201-BK
410-WH
123-WH
116-BR-14
200-BK-14
108-BU-14
113-OR
108-BU-14
116-BR-14
105-BR
308-YL
310-PU
608-GN-14
BK-00
BK-00
203-BK
T
L1
513-OR-14
610-OR-14
T
L4
403-GN
441-OR
413-BR
201-BK
L1
406-PU
311-WH
311-WH
L1
L3
M
200-BK-14
1
2
311-WH
310-PU
610-OR-14
322-GY
1
REFRIGERANT SW
8T-8639
NOTE A
201-BK
200-BK-14
BK
COOLANT
TEMP SW
7N9785
ORANGE
WHITE
1
2
3
610-OR-14
M
200-BK-14
N
N
N N
200-BK
T
PWR TN TEMP
113-OR
A
424-GY
415-GN
411-PK
404-YL
403-GN
413-BR
405-GY
424-GY
406-PU
201-BK
201-BK
201-BK
201-BK
201-BK
201-BK
410-WH
COOL TEMP
+ BATTERY
GROUND
ALTERNATOR
HYD TEMP
ENG OIL PR
ALARM
LAMP
FUEL PR
TEST
11
20
19
18
17
16
15
14
13
12
10
9
8
7
6
5
4
3
2
1
RD-00
NEGPOSNEGPOS
BK-00
WASHER
7T-8891
FLOOD
LAMP
9X-6775
510-YL-18
510-YL-18510-YL-18510-YL-18
RED
FLOOD
LAMP SW
3T-1730
609-YL-14
POWERTRAIN
FILTER SW
9X-7781
NOTE B
600-BR
5
4
2
1
RIGHT
WIPER
7X-1751
A513-PK
E-4
610-OR-18
02
H
HH
G G
G
E A
510-YL-14
610-OR-14
102-BU-14
102-BU-14
3
610-OR-18
00
UU
NOTE
UU
UU
200-BK-14
T
BK-12
608-GN-14
FRONT & DASH
LAMP SW
7T-3946
610-OR
116-BR-14
116-BR-14
608-GN-14
443-YL
H
HYDRAULIC OIL
TEMP SW
9G-1300 NOTE E
8N-2248 NOTE D
447-PK
306-GN
129-BU-14
129-BU-14 129-BU-14
200-BK-14200-BK-14
129-BU-14
200-BK-14
426-BR
201-BK
404-YL
GY/PU-18
GY/BK, PU/BK-18
BK-18
RD-18
YL-18
WH/GN-18
WH/BK, GN/BK-18
ANTENNA
RH SPEAKER (+)
RH SPEAKER (-)
GROUND
+12 VOLT
+12 VOLT MEMORY
LH SPEAKER (+)
LH SPEAKER (-)
592-BU
BR
610-OR-14
608-GN-14
609-YL-14
592-BU
A513-PK
200-BK-18
200-BK-18
108-BU
526-YL-18
527-GN-18
528-PK-18
528-PK-18
527-GN-18
526-YL-18
108-BU
509-WH-18
508-PU-18
REAR
WIPER
9X-3392
108-BU
505-BU-18
504-YL-18
503-BR-18
510-YL-18
108-BU
511-BR-18
512-GN-18
PU
GN
GY
BR
OR
4
2
3
1
H
L
BK-12
108-BU 108-BU
502-OR-18
501-GN-18
500-BR-18
525-GY-18
524-BU-18
523-BR-18
MOTOR
510-YL-18
108-BU
528-PK-18
527-GN-18
526-YL-18
T
108-BU-18
505-BU-18
504-YL-18
503-BR-18
108-BU
108-BU
REAR WIPER SW
3T-6655
RIGHT WIPER SW
3T-6655
LEFT WIPER SW
3T-6655
FRONT WIPER SW
3T-6655
B
W
P
L
H
B
B
W
L
H
B
B
W
P
L
H
B
B
W
P
L
H
B
526-YL-18
527-GN-18
528-PK-18
108-BU
T
24 VOLT RADIO
RADIO OPTIONS
12 VOLT RADIOS
3E-7140 FIXED U.S.
3E-7141 REMOVEABLE U.S.
3E-6107 FIXED EUROPE
3E-6106 REMOVEABLE EUROPE
MOTOR
L
H
1
3
2
4
OR
BR
GY
GN
T
H
OPERATOR STATION
510-YL-14
200-BK-14
510-YL-18
MOTOR
H
LAMP
5D-0019
LAMP
5D-0019
LAMP
5D-0019
BK-6
HEAD
LAMP
9X-6874
FF
STARTER
4N-3181 STD
3T-8946 ATCH
AUX START
RECEPTACLE
C
610-OR-18
610-OR-18
610-OR-18
C Q
3
GN
GY
BR
OR
OPERATOR
MONITOR
PANEL
MOUNTING
BOLT
521-YL-14
200-BK-14
IGN
SEND
GRD
IGN
SEND
GRD
IGN
SEND
GRD
515-GY-14
516-GN-14
200-BK-14
RESISTOR
9G-1950
THERMOSTAT
SW
3E-5465
124-GN-14
521-YL-14
T
BLOWER SW
6P-3236
H
4
424-GY
RD-00
BK-00
POWERTRAIN
OIL TEMP
SENDER
8N-3844
2
1
COOLANT
TEMP GAGE
4W-0483
POWERTRAIN OIL
TEMP GAGE
4W-0485
600-BR 600-BR
1
2
FUEL
LEVEL GAGE
9X-3496
FRONT
WIPER
9X-3392
RESISTOR
6T-2217
POWERTRAIN OIL
TEMP SW
3T-5825
ALTERNATOR
100-5047
502-OR-18
108-BU
500-BR-18
501-GN-18
BASE
7G-9730
BASE
7G-9730
FUEL
PRESS SW
9W-3187
7X-2041
N
N
JJEE
G
FN
M
A
A A
F-6
HH
A
4
OROPS HEATER
3
522-WH-14
4
201-BK
2
1
1
3
2
322-GY
114-GN
403-GN
OPERATOR STATION
200-BK200-BK
POWERTRAIN
OIL TEMP SW
9G-3341
NOTE E
426-BR
201-BK
2
PANEL LAMP
7N-9967
PANEL LAMP
7N-9967
600-BR
NOTE E: FOR CLUTCH/BRAKE STEER ONLY
RR
403-GN
NOTE D: FOR DIFF STEER ONLY
200-BK
511-BR-18
GR
BK
T
201-BK
424-GY
3
1
H
T
443-YL
424-GY
201-BK
T
L
MOTOR
T
5
200-BK-14
124-GN-14
2
3
1
BLOWER
9G-8697
2
RED
BLK
BLU
GRN
OR
517-BU-14
200-BK-14
BLOWER
9G-8693
2
2
1
1WH/RD-14 WH/RD-14
BK-14BK-14
MOTOR
MOTOR
FORWARD HORN SW
3T-2357
304-WH-8
301-BU
304-WH-8
302-OR
207-BK
200-BK-8
FRAME
ENG
BLK
322-GY
114-GN
201-BK
426-BR
404-YL
121-YL
321-BR
608-GN-14
200-BK-14
AIR
CONDITIONER
CLUTCH
SOLENOID
8T-8813
BK-6
207-BK
BK-00
RD-00
G S
MTR BAT
MOTOR
123-WH-18
200-BK-18
123-WH-18
COOLANT
TEMP SENDER
6N-5926
406-PU
T
443-YL-18
441-OR-18
447-PK-18
123-WH-18
123-WH
200-BK-18
447-PK
441-OR
443-YL
L4
7T-8326
GY
BK
200-BK-18
200-BK-18
200-BK-18
123-WH-18
OPERATOR STATION
RD-00
413-BR
610-OR-14
ALT
+
R
24 VOLT RADIOS
9X-6779 FIXED U.S.
9X-6778 REMOVEABLE U.S.
3E-7890 FIXED EUROPE
9X-5288 REMOVEABLE EUROPE
B
102-BU-14
105-BR
308-YL
124-GN-14
310-PU
311-WH
1
M
T
306-GN
410-WH
307-OR
201-BK
ST
BACKUP
ALARM SW
7T-8744
NOTE E
W
G
1
2
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.
EMS CIRCUIT.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT
GROUND CIRCUIT
START AID CIRCUIT
ALL DASHED LINES ARE ATTACHMENTS
4
2
00T 8E-1684 C-9/E-9
D-900U
ATCH
9U-9456
D
01 B-1/F-18E-2137XX
ATCH
03 F-33P-2179BB
ATCH
306-GN
307-OR
307-OR
2
1
BK
BK
B
129-BU-14
307-OR
307-OR
306-GN
200-BK
200-BK
321-BR
307-OR
306-GN
307-OR
201-BK
201-BK
306-GN
321-BR
321-BR
200-BK
200-BK
NOTE: FOR DIFF STEER PLUG HARNESS AS.
“A” INTO HARNESS AS. “UU”; FOR POWERSHIFT
WITH CLUTCH/BRAKE STEER PLUG HARNESS
AS. “A” INTO HARNESS AS. “RR”; FOR DIRECT
DRIVE LEAVE HARNESS AS. “A” OPEN.
2
1
1
2
A
200-BK
321-BR
BK/PK
BK/PK
1
2
200-BK-14
608-GN-14
U A
447-PK
200-BK-14
447-PK
447-PK
200-BK-14
608-GN-14
2
1
200-BK-14
608-GN-14
200-BK-14
608-GN-14
2
1
J
A
307-OR
306-GN
307-OR
306-GN
2
1
J
A
306-GN
306-GN
NOTE: PLUG WIRE
ASSEMBLY “J” INTO
HARNESS “A” FOR
DIRECT DRIVE;
LEAVE HARNESS “A” OPEN
FOR POWER SHIFT.
NEUTRAL
START SW
DIRECT DRIVE ONLY
9P-9520
JJ
S
T
200-BK
321-BR
307-OR
306-GN
L7
ATCH
STD
