COMPONENT IDENTIFIER (CID) LIST
CID No.
Component
168 Electrical System Voltage
190 Engine RPM Sensor
248 CAT Data Link
269 Sensor Supply
627 Parking Brake Switch
650 Harness Code
672 Torque Converter Output Speed Sensor
700 Transmission Gear Switch
701 Transmission Output Speed Sensor
702 Shift Lever Switch
704 Service Brake Pressure Switch
705 Body Raise Switch
706 Body Up Switch
707 Up Solenoid
708 Down Solenoid
709 Lockup Solenoid
This list has CID's for all machines equipped with transmission control (EPTC II).
COMPONENT LOCATION CHART
Machine
Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
A
Alarm - Action (EMS)
E-3 20
Solenoid - Forward Horn
E-9
1
Alarm - Backup
C-10 21
Solenoid - Start Aid
A-2
2
Alternator
B-2 19
Solenoid - Up Shift
A-5
3
Batteries
A-4 19
Solenoids - Elevator Control
A-6
C
Block - Fuse
D-5 20
Switch - Air Press (EMS)
E-9
C
Breaker - Alternator (80 Amp)
E-5 B
Switch - Apron
E-7
C
Breaker - Key (bO Amp)
E-5 B
Switch - Auger
E-8
C
Breaker - Blower Motor (iS Amp)
E-4 B
Switch - Backup Alarm
F-7
C
Breaker - Head Lamp (15 Amp)
E-4 B
Switch - Blower
E-4
Breaker - Panel, Dome, Stop & Tail 25
Switch - Charge Pump Filter
A-S
Lamp (10A)
Switch - Converter/Retarder Temp
B
Buffer
F-6
(EMS)
B
Control - Elevator
D-8 D
Switch - Differential Lock
D-9
B
Control - Neutral/Start
E-6 3
Switch - Disconnect
A-4
4
Control - Transmission
F-10, F-11 D
Switch - Dome Lamp
F-7
5
Control - Stop/Tail Lamp
C-8 D
Switch - Door Dome Lamp
F-5
6
Dryer - Air
A-2 22
Switch - Engine Coolant Flow (EMS)
A-3
B
Gauge - Engine Coolant Temp
D-6 23
Switch - Engine Coolant Temp (EMS)
B-3
B
Gauge - Converter Retarder Temp
D-6
Switch - Engine Coolant Temp
A
Lamp - Action (EMS)
E-3
(Start Aid)
C
Meter - Service
E-6 24
Switch - Engine Oil Press (EMS)
A-3
A
Monitor - Operator (EMS)
E-3 24
Switch - Engine Oil Press (Fuel Pump)
B-3
D
Motor - Blower
F-2 A
Switch - Flood Lamp
E-4
D
Motor - Blower
F-2 A
Switch - Forward Horn
F-5
7
Motor - Front Washer
D-9 A
Switch - Front Wiper,
F-3
8
Motor - Front Wiper
F-2 15
Switch - Fuel Press (EMS)
A-3
9
Motor - Fuel Pump
B-7 D
Switch - Head Lamp Dimmer
E-9
7
Motor - Rear Washer
D-9 B
Switch - Hold
F-8
10
Motor - Rear Wiper
F-7 B
Switch - Key Start
E-5
11
Motor - Starter
B-4 A
Switch - Operator Monitor Test (EMS)
E-4
3
Receptacle - Auxiliary Start
A-4 A
Switch - Panel Dimmer
F-4
C
Relay - Start
E-5 25
Switch - Parking Brake Press (EMS)
B-6
C
Relay - Main
E-5 25
Switch - Pump Case Drain Filter
A-5
D
Resistor - Blower Motor Speed
E-2 A
Switch - Rear Wiper
F-3
A
Resistor - Panel Dimmer
F-4 26
Switch - Refrigerant Pressure
B-2
12
Resistor (Starter to Diagnostic Conn)
B-4 A
Switch - Running Lamp
F-4
Sender - Converter Retarder Temp
B
Switch - Shift Lever
F-8
(Gauge)
A
Switch - Side Flood Lamp
F-5
14
Sender - Engine Coolant Temp (Gauge)
A-3 A
Switch - Start Aid
F-5
15
Sender - Tachometer
A-3 27
Switch - Steering Flow (EMS)
A-4
16
Sender - Transmission Speed
A-5 28
Switch - Stop Lamp Pressure
E-8
2
Solenoid - A/C Clutch
B-2 19
Switch - Transmission
A-5
17
Solenoid - Apron
E-8 B
Switch - Thermostat (A/C)
E-2
18
Solenoid - Differential Lock
E-9 A
Tachometer
D-2
19
Solenoid - Down Shift
A-5
Machine locations are repeated for components located close together.
A = Components in front dash.
B = Components in operator's right console.
C = Components in operator's left console.
D = Componets in operator compartment.
C E-4
13 A-3
13 A-3
23 A-2
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
D - 1067071
W - 8C4764
C-5
A - 8X1057
D - 1067071
C-3
*
D - 1067071 Std
Trans Control
F-10 *
J - 1067065 Atch
Electronic Control
E-8
*
CCC - 1067104 Atch
Trans Control
F-11
D - 1067071
N - 5T1527
C-7
25 Contacts
A - 8X1057
W - 1067070
C-3
D - 1067071
X - 8C4764
E-2
*
W - 1067070
Operator Monitor
E-3
N - 511527
P - 8W8808
C-8
W - 1067070
Diagnostic Connector
E-5
W - 1067070
Z - 6G9986
D-2
14 Contacts
D - 1067071
WW - 8W2179
C-6
A - 8X - 1057
B - 8W3936
C-2
D - 1067071
S - 1067064
B-5
R - 5T1640
P - 8W8808
C-8
D - 1067071
V - 7T3418
B-5
D - 1067071
J - 1067065
D-8
W - 1067070
BBB - 8X0549 Atch
E-7
D - 1067071
W - 1067070
C-3
W - 1067070
XXX - 1067063 Atch
F-6
G - 5T1632
W - 1067070
F-S
*
WW - 8W2179
Shift Lever Sw
F-8
W - 1067070
Y - 6G9985
D-2
*
V - 7T3418
Transmission Sw
B-5 *
T - 8X3136
Stop/Tail Lamp Cont
C-9
*
BBB - 8X0549 Atch
Neutral/Start Control
E-6 *
Y - 6G9985
Frt Wiper Motor
F-2
*
BBB - 8X0549 Atch
Buffer Box
F-6 *
Z - 6G9986
Rear Wiper Motor
F-7
*
XXX - 1067063 Atch
Neutral/Start Control
F-6
Machine locations are repeated for connectors located close together.
* = Connector is located at the component.
HARNESS CONNECTOR LOCATION CHART
8 Contacts
7 Contacts
5 Contacts
4 Contacts
37 Contacts
20 Contacts
10 Contacts
9 Contacts
FAILURE MODE IDENTIFIER (FMI) LIST
FMI No.
Failure Description
0 Data valid but above normal operational range.
1 Data valid but below normal operational range.
2 Data erratic, intermittent, or incorrect.
3 Voltage above normal or shorted high.
4 Voltage below normal, or shorted low.
5 Current below normal or open circuit.
6 Current above normal, or grounded circuit.
7 Mechanical system not responding properly.
8 Abnormal frequency, pulse width, or period.
9 Abnormal update.
10 Abnormal rate of change.
11 Failure mode not identifiable.
12 Bad device or component.
13 Out of calibration.
RELATED SERVICE MANUALS
Form No.
SENR2082
SENR4130
SENR2945
SENR3889
SENR2947
SENR3860
SENR5618
Title
Alternator (5G-9088):
Electronic Monitoring System
Electronic Neutral Start Control
Starting And Charging Systems
Starting Motor (3T-8967):
Transmission Control (EPTC II)
Consist No. 9G-9538
Consist No. 6T-7223
Consist No. 3T-8967
RESISTOR AND SOLENOID SPECIFICATIONS
Component
Part No.
Resistance (Ohms)¹
9G-1950
Over-all; 2.0 ± .1
Tap; 1.0 ± .05
3T-3123 25.0 ± 0.25
6T-2217 150.0 ± 7.5
7T-8600 14.4 ± 0.6
7N-9719 68.0
7X-1120 34.0
7T-9074 55.0 ± 6.0
7N-7259 6.0
¹ At room temperature.
Resistor - Blower Motor Speed
Resistor - Panel Dimmer
Resistor - Starter/Diagnostic
Solenoid - A/C Clutch
Solenoid - Apron, Diff Lock
Solenoid - Down Shift, Up Shift
Solenoid - Forward Horn
Solenoid - Start Aid
OFF MACHINE SWITCH SPECIFICATIONS
Part No.
Function
Actuate
Deactuate
Contact Position
2M-9346 Stop Lamp Pressure 45.0 kPa Max
(6.5 psi MAX)
5 kPa MIN
(0.5 psi MIN)
Normally Open
6T-7663 Engine Oil Pressure,
93.0 ± 21.0 kPa
(13.5 ± 3.0 psi)
69.0 ± 21.0 kPa
(10.0 ± 3.0 psi)
Normally Open
7N-0758 Hydraulic Oil Temp
38.0 ± 3.0°C
(100.0 ± 5.0°F)
27.0 ± 3.0°C
(80.0 ± 5.0°F)
Normally Open
7N-9560 Converter/Retarder Temp (EMS)
129.0 ± 3.0°C
(265.0 ± 5°F)
118.0°C MIN
(245.0°F MIN)
Normally Closed
7N-9785 Engine Coolant Temp (EMS)’
107.0 ± 3.0°C
(225.0 ± 5°F)
91.0°C MIN
(196.0°F MIN)
Normally Closed
8N-1693 Engine Coolant Temp (start Aid)
38.0 ± 3.0°C
(100 ± 5.0°F)
27.0°C MIN
(80.0°F MIN)
Normally Closed
8T-9792 Parking Brake Pressure (EMS)
517.0 ± 35.0 kPa
(75.0 ± 5.0 psi)
448.0 ± 35.0 kPa
(65.0 ± 5.0 psi)
1-2, Normally Open
1-3, Normally Closed
9W-3187 Fuel Pressure (EMS)
93.0 ± 21.0 kPa
(13.5 ± 3.0 psi)
69.0 ± 21.0 kPa
(10.0 ± 3.0 psi)
Normally Closed
9X-1159 Steering Flow (EMS)
4 grams
(.14 oz)
1.5 grams
(.05 oz)
Normally Open
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3
4
5
6
8
9
10
11
12
14
15
13
16
1
2
17
18
19
20
21
22
23
24
25
26
27
28
7
MACHINE HARNESS CONNECTOR AND COMPONENT LOCATIONS
C48650P1
1
2
3
4
5
6
7
9
10
11
12
13
14
3
4
5
6
8
9
10
11
12
14
15
13
16
1
2
17
18
19
20
21
22
23
24
25
26
27
28
7
8
1
1
1
2
3
3
4
4
5
6
7
8
4
9
10
14
13
12
11
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.
SENR5699
April 1993
631E Series II Wheel Tractor-Scraper
& 631E Series II Tractor With
633E Elevating Scraper
Electrical System
Tractor:
1AB1446-UP
631E Scraper:
1BB1289-UP
633E Scraper:
1EB1-UP
©
1993 Caterpillar
All Rights Reserved
Printed in U.S.A.
T
T
T
L35
L24
515-GY-14
119-PK
2
1
4
3
4
3
2
1
7
8
6
5
2
1
6
2
3
8
4
1
5
7
RED
WHITE
ORANGE
YELLOW
PINK
BLACK
GRAY
PURPLE
BROWN
GREEN
BLUE
RD
WH
OR
YL
PK
BK
GY
PU
BR
GN
BU
ATCH WIRE, CABLE &
COMPONENT
NOTE B: NORMALLY CLOSED WHEN DOOR OPEN
NOTE C: NOT REQUIRED THIS MODEL
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
AND XMSN SHIFTER IN NEUTRAL
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
LOCPART NO.IDENT
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
B-10
A-4
A-2
A-2
A-2
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
CONNECTOR
SYMBOL DESCRIPTION
02
00
03
00
00
A-4
A-4
A-4
A-4
A-4
B-4
01
01
01
02
00
00
COLORABBREV
5T1553
9G0549
5T1528
9S9312
5T7362
2G4177
AA
BB
CC
EE
SS
ZZ
CABLE AS.
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
NOTE D: DENOTES COMPONENTS THAT MAY BE ATCH
STATUS ON SOME CONFIGURATIONS
9G6259
5R7755
6G5258
2W8715
2W8662
E
JJ
KK
QQ
QQ
WIRE AS.
HARNESS AS.
S
S
S
CHG
S
THIS SCHEMATIC IS FOR THE 631E
WHEEL TRACTOR SCRAPER
8 7 491011
F
E
3
A
B
C
D
5
2
E
6
STD
ATCH
1
12
6
3
5
11 10 9
D
4
C
F
78
B
A
105-BR
27
37
36
30
29
5
16
15
14
13
12
11
19
18
17
20
6
7
8
2
10
9
4
3
26
25
24
23
22
21
28
35
34
33
32
31
1
1
31
32
33
34
35
28
21
22
23
24
25
26
3
4
9
10
2
8
7
6
20
17
18
19
11
12
13
14
15
+ BATTERY
GEAR 2
GEAR 3
GEAR 4
GEAR 5
UP SOL
DOWN SOL
GROUND
HOLD SW
LEVER 1
LEVER 2
LEVER 3
LEVER 4
LEVER 5
16
5
29
30
36
37
27
GEAR 1
XMSN SP
GND VERIFY
GND VERIFY
+10V
ID CODE 0
ID CODE 1
ID CODE 2
ID CODE 3
FRONT GR 1
FRONT GR 2
FRONT GR 3
FRONT GR 4
FRONT GR 5
3E9233
TRANSMISSION CONTROL
STRT RELAY/SOL OUT
BU ALRM/SHIFT SYNC
NEUTRAL (EMS)
NEUTRAL (AUX)
KEY START INPUT
SERVICE SET SW
SERVICE CLEAR SW
GROUND
CAT DATA LINE +
CAT DATA LINE -
1
2
3
4
5
6
7
8
9
10
ID CODE 4 ID CODE 4
6
7
8
9
10
1
2
3
4
5
STRT RELAY/SOL OUT
BU ALRM/SHIFT SYNC
NEUTRAL (EMS)
NEUTRAL (AUX)
KEY START INPUT
SERVICE SET SW
SERVICE CLEAR SW
GROUND
CAT DATA LINE +
CAT DATA LINE -
3E9233
TRANSMISSION CONTROL
FRONT GR 5
FRONT GR 4
FRONT GR 3
FRONT GR 2
FRONT GR 1
ID CODE 3
ID CODE 2
ID CODE 1
ID CODE 0
+10V
GND VERIFY
GND VERIFY
XMSN SP
202-BK
716-BU
715-GN
714-YL
713-OR
712-WH
711-BR
708-YL
710-GN
709-OR
704-GY
703-BU
726-BU
GEAR 1
27
37
36
30
29
5
16
LEVER 5
LEVER 4
LEVER 3
LEVER 2
LEVER 1
HOLD SW
GROUND
DOWN SOL
UP SOL
GEAR 5
GEAR 4
GEAR 3
GEAR 2
+ BATTERY
15
14
13
12
11
19
18
17
20
6
7
8
2
10
725-GN
9
4
3
26
25
24
23
22
21
28
35
34
33
32
31
1
724-YL
723-OR
722-WH
721-BR
USE HARNESS "CCC" WITH
ELEVATING SCRAPER ONLY.
C436-BU
C435-GN
200-BK
200-BK
C434-YL
200-BK
200-BK
105-BR
316-PK
C435-GN
C434-YL
CCC
126-PK
316-PK
2
1
200-BK
C436-BU
200-BK
200-BK
200-BK
MOTOR CASE DRAIN
FILTER SW
1067067
D
200-BK
C436-BU
2
E737-PU
C436-BU
CHARGE PUMP
FILTER SW
1067067
PUMP CASE DRAIN
FILTER SW
1067067
1
2
D
E737-PU
200-BK
200-BK
200-BK
CONTROL GP-
ELECTRONIC
1069188
316-PK
316-PK
C434-YL
C435-GN
105-BR
6
2
1
C435-GN
C434-GN
105-BR
105-BR
C434-YL
C435-GN
200-BK
D
1
5
4
3
2
316-PK
306-GN
200-BK
E737-BU
316-PK
200-BK
200-BK
E737-PU
200-BK
10
200-BK
C436-BU
9
8
7
C436-BU
1
CCC
T
5
4
2
3
1
6E5845
ELEVATOR CONTROL SOLENOID
202-BK
C436-BU
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
708-YL
711-BR
712-WH
713-OR
714-YL
715-GN
202-BK
721-BR
722-WH
723-OR
724-YL
725-GN
726-BU
703-BU
704-GY
709-OR
710-GN
716-BU
202-BK
126-PK
202-BK
L10
L32
L31
L31
L32
L32
L10
L10
L10
L4
L4
L5
L9L9
AUGER SW
5V8690
2
1 787-WH
165-YL
BK
RD/GN
BBB
BBB
1
2
3
4
5
8
9
7
10
2
1
6
LEVER 1
LEVER 2
LEVER 3
LEVER 4
LEVER 5
NEUTRAL
GROUND
GND VERIFY
FORWARD
HORN
SOLENOID
7T9074
200-BK
200-BK
C436-BU
200-BK
D
322-GY
506-PU
507-WH
200-BK
200-BK
200-BK
200-BK
REAR
WASHER
7T8891
FRONT
WASHER
7T8891
MOTOR
MOTOR
BAT
APRON SW
2G3970
470-PU-18
APRON
SOLENOID
7N9719
D
M
1
2 200-BK
165-YL
200-BK
717-BR
202-BK
SHIFT
LEVER SW
9W0681
200-BK
202-BK
126-PK
200-BK
STOP
LAMP SW
2M9346
Q
D
2
1
604-OR
103-YL
WW
D
408-WH
HEAD LAMP
DIMMER SW
2H1855
OPERATOR STATION
OPERATOR STATION
610-OR-14
611-PU-14
201-BK
322-GY
202-BK
716-BU
710-GN
709-OR
704-GY
703-BU
726-BU
725-GN
724-YL
723-OR
722-WH
721-BR
202-BK
715-GN
714-YL
713-OR
712-WH
711-BR
708-YL
712-WH-18
713-OR-18
714-YL-18
715-GN-18
202-BK
716-BU-18
711-BR-18
321-BR
200-BK
324-BU
200-BK
DIFFERENTAIL
LOCK SOLENOID
7N9719
DIFFERENTIAL
LOCK SW
3T3132
324-BU
165-YL
165-YL
HOLD SW
8D2676
202-BK
708-YL
HYDRAULIC OIL TEMP SW
7N0758
ELEVATOR CONTROL
1067068
SOLND
SOLND
(GRN)
(REVERSE)
(YEL)
(FORWARD)
(RED)
D
B
COMMAND POT
E
C
A
GND
AUX
B+
(ORG)
PWM
CONVERTER
(BLK)
D
201-BK
201-BK201-BK
408-WH
AIR SW
8T9792
BU
RD
717-BR
165-YL
202-BK
708-YL
WW
896-GN
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
J
J
202-BK
202-BK
202-BK
BK
1
408-WH
L7
Q
506-PU
L32
NOTE D
MM
D
2
D
D
D
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
202-BK
D
200-BK
D
2
1
202-BK-18202-BK
L5
L6
L7
200-BK
200-BK
323-WH
608-GN
E
121-YL
321-BR
E
BACKUP
ALARM
3T1815
604-OR
614-PU
RIGHT
STOP-TAIL
LAMP
7X6219
LEFT
STOP-TAIL
LAMP
7X6219
639-WH
640-GN
T
S
604-OR
614-PU
T
T
200-BK
200-BK
200-BK
200-BK
200-BK
T
639-WH
640-GN
STOP/TAIL
LAMP CONTROL
7X1670
WH
GN
OR
PU
LEFT LAMP
RIGHT LAMP
STOP IN
TAIL IN
604-OR
614-PU
200-BK
200-BK
121-YL
321-BR
NNP
PR
D
200-BK
608-GN
323-WH
321-BR
121-YL
2
1
4
5
3
6
BK/PK-14
BK-14
323-WH
200-BK
6
3
5
4
1
2
7 7
6
3
5
4
1
2
2
1
R
T R
2
1614-PU
604-OR
200-BK
L10
L25
L26
L27
L28
L29
L23
L23
L15
L15
L22
L22
L21
L34
L34 L34
L33
L33L33
L33
L16
L16L16
L16 L16
L16
L28
L17
8
1
4
2
3
1
445-GN
CONV RETR TEMP
GAGE (TRACTOR)
4W0485
W
W
470-PU
200-BK
BUFFER
XXX
470-PU
200-BK
126-PK
307-OR 9
5
7
6
5
1
2
GN-18
BK-18
PU-18
OR-18
1
4
2
3
START RELAY
GROUND
START SW
+ BATTERY
WH-18
GN-18
XXX
BUFFER/ELEV
3
6
7
8
9
OR-18
YL-18
BU-18
GY-18
PK-18
BR-18
NEUTRAL
OPR PANEL409-OR
306-GN
307-OR
126-PK
200-BK
200-BK
470-PU
W
W
3
2
4
1
8
200-BK
200-BK
409-OR
470-PU
307-OR
200-BK
126-PK
LAMP
5D0019
LAMP
5D0019
LAMP
5D0019
BASE
7G9730
BASE
7G9730
PANEL
LAMP
7N5876
PANEL
LAMP
7N5876
200-BK
200-BK
601-GY
601-GY
SERVICE
METER
6T7337
403-GN
200-BK
200-BK
126-PK
307-OR
306-GN
409-OR OPR PANEL
NEUTRAL
BR-18
PK-18
GY-18
BU-18
YL-18
OR-18
9
8
7
6
3
BUFFER/ELEV
BBB
W/O HARNESS 'BBB'
CONNECT 10 PIN
CONNECTOR TO
NEUTRAL/START
CONTROL
GN-18
WH-18
+ BATTERY
START SW
GROUND
START RELAY
3
2
4
1
OR-18
PU-18
BK-18
GN-18
2
1
5
200-BK
REAR
WIPER
6T6216
COOLANT TEMP
GAGE (TRACTOR)
4W0483
601-GY
601-GY
AIR PRESS
GAGE
1W3306
FORWARD
HORN SW
3T2357
NC
NO
C
DOOR DOME
LAMP SW
NOTE B
3T3133
Z
200-BK
310-PU
602-WH
322-GY
START AID SW
3T3453
114-GN
119-PK
GN
GY
BR
2
W
WH
BK
OR
4
123-WH
3
4
441-OR
444-BU
IGN
SEND
GRD
IGN
SEND
GRD
DOME LAMP
7N8043DOME LAMP SW
8D2676
602-WH
200-BK
103-YL
602-WH
BACKUP
ALARM SW
6G4195
505-BU
504-YL
503-BR
444-BU
441-OR
2
3
1
H
L
MOTOR
T
6
7
5
9307-OR
126-PK
200-BK
470-PU
BBB
101-RD-10
307-OR
307-OR
126-PK
200-BK
200-BK
200-BK
200-BK
200-BK
PANEL, DOME,
STOP & TAIL
LAMP BREAKER
9G9882
409-OR
470-PU
109-OR-4
109-OR-8
109-OR-8
112-PU-14
308-YL
112-PU-8
125-OR-14
G
307-OR
306-GN
307-OR
304-WH
DIAGNOSTIC CONNECTOR
MAIN
RELAY
3T0376
101-RD-4
109-OR-4
80
ALT
BREAKER
9S4693
ATCH
9S0174
PPW
2
1
15
S
112-PU-14
124-GN-14
BLOWER
MOTOR
BREAKER
6N8589
54
21
W
SIDE FLOOD
LAMP SW
3T4405
102-BU-14
4
3
2
1
117-YL
103-YL
614-PU
609-YL
RUNNING
LAMP
SW
3T3826
609-YL
614-PU
103-YL
12
11
10
9
8
7
6
5
4
3
2
1
W
XX
W
310-PU
322-GY
2
1
202-BK
743-PU
KEY
BREAKER
9G9487
20
19
18
17
16
15
14
13
304-WH-8
200-BK
START
RELAY
9F3099
KEY START SW
9G7641
10
6
12
8
5
4
9
1
11
10
2
7
3
101-RD-4
101-RD
103-YL
308-YL
105-BR
102-BU-14
304-WH-8
112-PU
308-YL
304-WH
109-OR
105-BR
311-WH
310-PU
302-OR
207-BK
ST
ON
OFF
B
S
C
R
10
NEUTRAL START
CONTROL
7X1362
W/O HARNESS 'XXX'
CONNECT 10 PIN
CONNECTOR TO
NEUTRAL/START
CONTROL
614-PU
L11
403-GN
200-BK
L13
L11
200-BK
601-GY
W
L8
L8
200-BK
602-WH
200-BK
101-RD
L8
601-GY
601-GY
601-GY
L8
L11
602-WH
200-BK
XX
308-YL
743-PU
202-BK
609-YL
614-PU
103-YL
L11
L11
117-YL
124-GN-14
112-PU-14
PP
103-YL
103-YL
103-YL
103-YL
123-WH
165-YL
L12
L12
L31
L13
123-WH
123-WH
123-WH
NOTE D
NOTE D
L35
W
W
W
W
W
W
W
W
NEUTRAL/RUN SW
NOTE C
L11
W
CONV RETR
TEMP GAGE
(SCRAPER)
NOTE C
Z
WW
WW
W
200-BK
200-BK
200-BK
203-BK
9
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY
601-GY 601-GY
601-GY
601-GY
BU-18
896-GN
787-WH
200-BK
781-PK
895-BR
781-PK
895-BR
AUGER SOL
AUGER SW
GROUND
NEUT/START
NEUT/START
PU-18
GY-18
YL-18
GN-18
WH-18
BK-18
PK-18
BR-18
NEUTRAL/START
CONTROL
7X1362
BUFFER BOX
7X1193
123-WH
123-WH
126-PK
L9
L32
BBB
W
AUGER
119-PK
102-BU-14
308-YL
113-OR
114-GN
118-GY
10A
10A
10A
10A
10A
10A
10A
TRANSMISSION
FRONT WIPER
15
10
BACKUP ALARM
OPERATOR MONITOR
FUSE
3K8782
HORN
SIDE FLOOD LAMPS10A
117-YL
103-YL
10A REAR WIPER
HEAD LAMP
BREAKER
3T2662
AIR DRYER
10A FUEL PUMP
112-PU-10
FLOOD LAMPS & GAGES
123-WH
SOLENOIDS
165-YL
10A
101-RD-14
L4
101-RD-14
101-RD-10
101-RD
101-RD
123-WH
FUSE BLOCK
2S3747
FUSE BLOCK
9G0747
101-RD
202-BK
L31
L26
L25
L27
L28
L29
L32 L32
L32
L10
L10
L9
L9
L6
L6
L5
L5
L5
WW
165-YL
24
22
14
W
35
37
34
33
31
29
27
9
30
21
20
32
18
19
10
23
7
2
25
26
11
13
12
16
15
5
1
3
8
36
28
6
17
4
470-PU-18
200-BK
708-YL
321-BR
716-BU-18
715-GN-18
714-YL-18
BOWL
FLOOD
LAMP
7T9094
MOTOR
202-BK
L5
L7
L7
470-PU
470-PU
608-GN
14
13
12
11
TRANSMISSION
103-YL
604-OR
713-OR-18
L4
712-WH-18
200-BK
323-WH
R
2
1
321-BR
D
708-YL
200-BK
711-BR
712-WH
713-OR
714-YL
715-GN
202-BK
716-BU
7
8
10
1
2
3
4
5
9
6
FUEL
PUMP
1W4279
608-GN
TRANSMISSION
SPEED SENDER
3E6955
TRANSMISSION SW
(TRACTOR)
6V5828
201-BK 419-YL
419-YL
201-BK
D
BU
RD
3
1
2
PARKING
BRAKE SW
8T9792
608-GN
445-GN
422-YL
421-BU
423-PU
204-BK
743-PU
1
STEERING SW
9X1159
202-BK
DOWN SHIFT
SOLENOID
7X1120
UP SHIFT
SOLENOID
7X1120
W/O STEERING SW
CONNECT PLUG D TO
RECEPTACLE D
P
TRANSMISSION
D
BK
202-BK
TRANSMISSION
DD
721-BR-18
722-WH-18
723-OR-18
724-YL-18
725-GN-18
726-BU-18
231-BK-18
E
F
H
D
DD
D
D
GEAR 1
GEAR 2
GEAR 3
GEAR 4
GEAR 5
GROUND
GND VERIFY
10
9
8
7
6
5
105-BR
4
3
2
202-BK
J
I
G
C
B
A
417-GY
201-BK
GROUND
SIGNAL
+V
C
B
A 203-BK
103-YL
614-PU
609-YL
CUTTING
EDGE
FLOOD
LAMP
7T9094
V
V
F
F F
D
506-PU
507-WH
201-BK
408-WH
419-YL
322-GY
126-PK
122-BU
200-BK
121-YL
608-GN
417-GY
323-WH
608-GN
710-GN
703-BU
202-BK
202-BK
709-OR
726-BU
725-GN
724-YL
723-OR
722-WH
721-BR
711-BR-18
2
1
2
1
710-GN
BK-18
BK-18 2
1
2
1
2
1
202-BK
202-BK
202-BK
709-OR
703-BU
704-GY
417-GY
201-BK
704-GY
L24
L28
L19
L19
L18
L18
L35
L35
L25
L29L29
L20
L20
L26
L3
L3
L25
L16
L17L17
L18
L18
L29
L27
L27
L21
L22
L23
T
MOTOR
L
H
1
3
2
4
OR
BR
GY
GN
123-WH
125-OR-14
202-BK
608-GN
601-GY
409-OR
103-YL
200-BK
RD
BK
TACH
8T9711
OPERATOR MONITOR
TEST SW
9D3721
LAMP
5D0019
201-BK
204-BK
ACTION LAMP (TRACTOR)
7N1996
BASE
3T0304
ACTION ALARM
(TRACTOR)
9G9813
W
W
201-BK
201-BK
415-GN
410-WH
2
1
2
1
204-BK
422-YL
421-BU
204-BK
423-PU
411-PK
123-WH
515-GY-14
200-BK-14
200-BK-14
521-YL-14
522-WH-14
THERMOSTAT SW
9X5445
200-BK
200-BK
200-BK-8
200-BK-8
REAR
WIPER SW
3T6655
FRONT
WIPER SW
3T6655
RD
RD
200-BK-14
601-GY
6
RESISTOR
9G1950
BLOWER SW
6P3236
3
4
5
2
1
516-GN-14
OR
NOTE
GRN
BLU
BLK
RED
516-GN-14
516-GN-14
T
521-YL-14
517-BU-14
200-BK-14
515-GY-14
124-GN-14
FRONT
WIPER
6T6216
200-BK
202-BK
1
-
S
+
SIG
614-PU 600-BR
601-GY601-GY
601-GY
200-BK
619-GN-14
D
OPERATOR
MONITOR
3T9100
Z
YW
2
3
4
119-PK
118-GY
614-PU
PANEL
DIMMER
RESISTOR
3T3123
PANEL
DIMMER SW
4D1836
103-YL
H
117-YL
118-GY
119-PK
B
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
ATCH
W P
L
H
B
B
W P
H
L
H
B
PANEL LAMP
7N5876
PANEL LAMP
7N5876
REFRIGERANT SW
NOTE A
9D6888
118-GY
409-OR
310-PU
C-3
C-2
A-3
C-5
B-4
F-5
C-8
E-8
E-7
C-7
C-8
E-8
C-8
B-5
C-9
B-5
C-5
E-2
F-2
F-7
E-5
C-6
F-5
B-3
F-6
F-11
F-6
601-GY
Y
105-BR
W
W
X
X X
W
506-PU
507-WH
500-BR
501-GN
502-OR
310-PU
200-BK-14
515-GY-14
517-BU-14
513-OR-14
7
500-BR
501-GN
502-OR
503-BR
504-YL
505-BU
602-WH
200-BK
103-YL
OPERATOR STATIONOPERATOR STATION
6
7
4
3
2
1
5
201-BK
200-BK
506-PU
507-WH
608-GN
123-WH
406-PU
409-OR 9
18
4
16
2
6
20
BASE
9D8047
BASE 9D8047
WH/RD-14
WH/RD-14
BK-14
BK-14
3
2 1
2
1
2
1
2
1
5
4
3
2
1
FLOOD LAMP SW
8D2676
BLOWER
9G8697
BLOWER
9G8693
119-PK
118-GY
517-BU-14
200-BK-14
610-OR-14
608-GN
502-OR
501-GN
500-BR
113-OR
308-YL
114-GN
102-BU-14
118-GY 505-BU
504-YL
503-BR
15
11
10
17
14
7
03
01
02
01
00
00
00
01
05
03
01
01
02
00
00
03
02
01
01
04
00
03
02
00
00
00
00
5
13
12
3
8
19
1
201-BK
415-GN
411-PK
410-WH
417-GY
201-BK
407-PK
405-GY
413-BR
412-BU
403-GN
408-WH
419-YL
113-OR
MOTOR MOTOR
L14
W
L26L26
W
403-GN
L13
L13
123-WH
L11 L11
201-BK
415-GN
423-PU
204-BK
422-YL
L24
L24
200-BK
601-GY
L14L14
503-BR
119-PK
500-BR
118-GY
L30
L30
516-GN-14
515--GY-14
X
X
513-OR-14
521-YL-14
X
L30
L30
515-GY-14
200-BK-14
200-BK-14
200-BK
200-BK
200-BK
L12
200-BK
200-BK
L26
200-BK
L28
200-BK
200-BK-14
200-BK
200-BK
200-BK
L14
L30
200-BK
L15
NOTE D
NOTE D
601-GY
601-GY
601-GY
601-GY
W
EMS
LAMP
NOTE C
EMS
ALARM
NOTE C
EMS
TEST SW
NOTE C
W
201-BK
201-BK
200-BK
602-WH
123-WH
123-WH
123-WH
7
8
5
6
2
1
3
4
L15
L20
L21
L22
L23
L24
L4
L3
L3
L2
L2
L2
L2
L1
L1L1
L1
122-BU
8X1057
8W3936
5T1633
1067071
8W3628
5T1632
1067066
1067065
5T1635
5T1527
8W8808
5T1561
5T1640
1067064
8X3136
7T3418
1067070
8C4764
6G9985
6G9986
5T9895
8W2179
5T0996
8W2208
8X0549
1067104
1067063
200-BK
200-BK
200-BK
5
4
2
3
1
W W
24
19
25
8
18
16
15
9
11
22
1
20
21
14
17
6
23
5
4
2
3
12
10
13
7
E737-PU
123-WH
L15
310-PU
L4
302-OR
A
A
B
C
D
F
G
H
J
M
N
P
Q
R
S
T
V
W
X
Y
Z
PP
WW
XX
AAA
BBB
CCC
XXX
A
A
A
444-BU
211-BK 203-BK
323-WH
201-BK
201-BK
A
A
A
A
311-WH
122-BU
311-WH
310-PU
609-YL
A
122-BU
GN
GN
A
522-WH-14
513-OR-14
125-OR-14
STARTER
3T8967
CONV RETR SENDER
(TRACTOR)
6N5926
CONV RETR SW
(TRACTOR)
7N9560
12V BATTERY
9G2648
12V BATTERY
9G2648
LO BEAM
HEAD LAMP
9W0051
LO BEAM
HEAD LAMP
9W0051
KK
BB
611-PU-14
619-GN-14 619-GN-14
611-PU-14
619-GN-14
B
B
B
C
NC
NO
C
NC
NO
B
B
B
DISCONNECT SW
7N0718
RESISTOR
6T2217
C
609-YL
609-YL 609-YL
A
101-RD-4
1
2
200-BK
211-BK
ZZ
207-BK
SIDE FLOOD
LAMP
7T9094
SIDE FLOOD
LAMP
7T9094
RD-00
BK-00
BK-00
RESISTOR
6T2217
TO ENG
BLOCK
HI BEAM
HEAD LAMP
9W0052
HI BEAM
HEAD LAMP
9W0052
619-GN-14
301-BU
NEG POS NEG POS
SS
2
1
RD-00
EE
JJ
AA
201-BK
403-GN
TO
FRAME
G S
MTR BAT
MOTOR
AUX START
RECEPTACLE
BK-00
RD-00
BK-00
BK-4
BK-00
RD-00
304-WH-8
200-BK-8
200-BK
A
COOLANT SENDER
6N5926
COOLANT SW
7N9785
CC
407-PK
406-PU
441-OR
444-BU
201-BK
611-PU-14
310-PU
311-WH
122-BU
201-BK
200-BK
451-BR
450-YL
513-OR-14
522-WH-14
513-OR-14
522-WH-14
521-YL-14
516-GN-14
200-BK-14
517-BU-14
515-GY-14
521-YL-14
COOLANT SW
9X3040
TACHOMETER
SENDER
9X8167
BK-18
BK-18
FUEL SW
9W3187
AIR
CONDITIONER
CLUTCH
SOLENOID
7T8600
323-WH
6
1
5
4
3
2
AAA
A
2
1
323-WH
125-OR
125-OR-14
ENGINE OIL SW
6T7663
ENGINE OIL SW
6T7663
AD
516-GN-14
200-BK
START AID
SOLENOID
7N7259
2
1
BA
COOLANT
SW
8N1693
203-BK
A
C
203-BK
609-YL
611-PU-14
610-OR-14
QQ
ALTERNATOR
8N0999 STD
5S9088 ATCH
T
T
201-BK 405-GY
400-GN
207-BK
619-GN-14
400-GN
D
200-BK-14
B
A
KK
B
A
C2
C1
COIL 2
COIL 1
C
NC
NO
C
NC
NO
517-BU-14
515-GY-14
200-BK-8
109-OR-4
451-BR
450-YL
441-OR
444-BU
311-WH
310-PU
412-BU
403-GN
201-BK
413-BR
405-GY
407-PK
406-PU
101-RD-4
304-WH-8
302-OR
2
1
201-BK
413-BR
405-GY
407-PK
109-OR-4
BK-4
BK-18
BK-18
2
1
2
1
AIR DRYER
2G2159
413-BR
311-WH
412-BU
122-BU
311-WH
310-PU
201-BK
201-BK
610-OR-14
ALT
+
R
200-BK
E737-BU
200-BK
316-PK
FILTER
INDICATION
LAMP
7N5876
BASE AS.
9D3127
10
316-PK
+ BATTERY
PARK BRAKE
AIR PRESS
NEUTRAL ST
ALTERNATOR
COOL FLOW
COOL TEMP
FUEL PRESS
ENG OIL PR
CONV TEMP
GROUND
SUPPL STER
ALARM
LAMP
TEST
316-PK
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.
EMS CIRCUIT.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
START AID CIRCUIT.
T
(FORWARD)
6E5845
ELEVATOR CONTROL SOLENOID
(REVERSE)
L19
