SENR5738
February 1993
988F Wheel Loader
Electrical System
8YG1-UP
©
1993 Caterpillar
All Rights Reserved
Printed in U.S.A.
Component Identifiers (CID)
CID No. Component
096 Fuel Level Sensor
100 Engine Oil Pressure Sensor
110 Engine Coolant Temperature Sensor
168 Electrical System Voltage
177 Power Train Oil Temperature Sensor
248 Data Link
263 +8V Sensor Supply
270 Harness Code
271 Action Alarm
324 Action Lamp
600 Hydraulic Oil Temperature Sensor
601 Brake Air Pressure Sensor
621 Downshift Switch
622 Upshift Switch
623 Direction Switch
626 Lock Switch
627 Parking Brake Switch
628 Quickshift Switch
631 Clutch 1 Solenoid (Reverse)
632 Clutch 2 Solenoid (Forward)
633 Clutch 3 Solenoid (Speed)
634 Clutch 4 Solenoid (Speed)
635 Clutch 5 Solenoid (Speed)
636 Clutch 6 Solenoid (Speed)
638 Start Relay
653 Transmission Control
668 Shift Handle
670 Left Pedal Sensor
671 Transmission Speed Sensor
672 Torque Converter Speed Sensor
678 VCTC Clutch Solenoid
679 Lockup Clutch Solenoid
Module Identifiers (MID)
MID No. Module
26 Computerized Monitoring System (CMS)
27 Electronic Transmission Control
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Action (CMS) F-3 A Sensor - Lift Cylinder Pressure (PMS) D-1 16
Alarm - Backup D-12 1 Sensor - Lift Position (PMS) D-1 17
Alternator D-11 2 Sensor - Power Train Temp (CMS) E-11 18
Batteries B-12 3 Sensor - Torque Converter Speed D-9 18
Batteries F-12 4 Sensor - Transmission Speed D-9 13
Breaker - Alternator (80 Amp) B-11 D Shifter - Transmission F-10 C
Breaker - Circuit (Blower Motor) 15 Amp A-6 E Solenoid - A/C Clutch B-11 2
Breaker - Circuit (Seat) 15 Amp A-6 E Solenoid - Bucket Float B-4 B
Breaker - Engine Shutdown (15 Amp) A-11 D Solenoid - Bucket Kickout B-4 B
Breaker - Key Switch (10 Amp) B-10 D Solenoid - Engine Shutdown E-11 19
Breaker - Main Power (80 Amp) B-10 D Solenoid - First Gear (Clutch 8) E-8 20
Breaker - Running Lamps (10 Amp) B-10 D Solenoid - Forward (Clutch 2) F-9 20
Control - Engine Shutdown A-10 D Solenoid - Fourth Gear (Clutch 3) F-8 20
Control - Hydraulic Hand (VCTC) A-3 B Solenoid - Lift Kickout B-4 B
Control - Lever Steer Shifter F-4 5 Solenoid - Lockup Clutch D-9 20
Control - Payload Monitor ECM (PMS) D-9 6 Solenoid - Reverse (Clutch 1) F-9 20
Control - Transmission D-7 6 Solenoid - Second Gear (Clutch 5) E-8 20
Converter - Voltage C-6 E Solenoid - Start Aid C-10 21
Display - Payload Measurement System
(PMS)
B-3 A Solenoid - Third Gear (Clutch 4) F-B 20
Fuse Holder A-6 E Solenoid - VCTC Valve D-10 18
Fuses (10 Amp) A-6 E Switch - Battery Disconnect D-11 2
Fuses (15 Amp) A-5 E Switch - Blower E-4 9
Horn - Forward B-2 7 Switch - Brake Pressure F-8 22
Horn - Forward E-2 8 Switch - Bucket Positioner B-1 23
Lamp - Action (CMS) F-3 A Switch - CMS Brightness Adjustment C-4 B
Lamp - VCTC Indicator D-3 A Switch - Coolant Flow (CMS) F-11 24
Meter - Service E-4 A Switch - Flood Lamp C-4 B
Monitor - Computerized System (CMS) E-3 A Switch - Floor Blower D-4 B
Motor - Blower E-4 9 Switch - Forward Horn D-3 C
Motor - Floor Heater Blower B-2 B Switch - Front Wiper D-4 9
Motor - Front Washer A-7 10 Switch - Key Start C-4 B
Motor - Front Wiper C-3 A Switch - Lift Kickout B-1 25
Motor - Rear Washer A-7 10 Switch - Neutralizer Limit F-3 C
Motor - Rear Wiper E-6 9 Switch - Neutralizer Override B-4 B
Motor - Starter D-11 11 Switch - Neutralizer pressure F-8 22
Radio F-5 9 Switch - Park Brake F-7 22
Receptacle - Auxiliary Start A-12 2 Switch - Parking Brake Pressure F-8 22
Relay - Flood Lamp A-5 E Switch - Quickshift C-3 B
Relay - Main Power B-10 D Switch - Rear Wiper E-4 9
Relay - Start A-10 D Switch - Refrigerant (A/C) B-11 26
Resistor - Blower Speed E-5 9 Switch - Reweigh (PMS) A-3 B
Resistor - Starter Diagnostic D-11 11 Switch - Running Lamp D-4 B
Resistor - System Voltage (CMS) A-9 D Switch - Start Aid C-4 B
Seat - Air Suspension D-5 C Switch - Steer Lever Lock F-4 B
Sensor - Engine Coolant (CMS) E-11 12 Switch - Stop Lamp F-8 22
Sensor - Engine Oil Pressure (CMS) E-11 11 Switch - Store (PMS) A-3 B
Sensor - Engine Speed (CMS) F-10 13 Switch - Thermostat E-5 9
Sensor - Fuel Level F-8 14 Switch - Transmission Filter (CMS) F-11 27
Sensor - Hydraulic Oil Temperature A-8 15 Switch - Turn Signal D-6 C
Machine locations are repeated for components located close together.
A = Components located in dash area.
B = Components located in right console area.
C = Components located in operator’s compartment.
D = Components located in relay panel.
E = Components located in right side service compartment.
Connector Location
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
*
A - 4E8279
CMS Cont
E-3 A
A - 4E8279
Z - 4E8247
C-3
*
W - 9U1419
Transmission Cont
D-7
B - 4E9196
U - 4E6635
A-7
37 Contacts
A - 4E8279
B - 4E9196
C-6
E - 4E6638
U - 4E6635
A-3
25 Contacts D
C - 4E9682
J - 9U2275
A-11
E - 4E6638
Y - 4E6644
B-2
B - 4E9196
W - 9U1419
D-8
E - 4E6638
Y - 4E6644
D-2
Q - 4E8277 Std
W - 9U1419
E-6
KK - 3E8843
BBB - 3E7325
E-5
Q - 9U3907 Atch
W - 9U1419
F-11 *
A - 4E8279
Front Wiper Motor
C-3
LL - 7I3312
RR - 7I3311
F-6 *
A - 4E8279
Voltage Converter
C-6
D
J - 9U2275
Diagnostic Connector
A-10 *
D - 4E8229
Rear Wiper
E-5
*
RR - 7I3311
Payload Monitor Cont
D-9 *
J - 9U2275
Shutdown Control
A-10
14 Contacts
W - 9U1419
TT - 8E6402
F-9 *
LL - 7I3312
Payload Display
A-2
A - 4E8279
B - 4E9196
D-6 E
A - 4E8279
D - 4E8229
D-5
E
A - 4E8279
D - 4E8229
D-5
B - 4E9196
RR - 713311
A-8
E
A - 4E8279
S - 9U0785
C-4
H - 4E9I04
ZZ-4E9103
F-2
B - 4E9196
C - 4E9682
C-10 E
A - 4E8279
Hydraulic Hand Sw
A-3
D
B - 4E9196
J - 9U2275
B-9 A
A - 4E8279
Service Plug (CMS)
C-3
B - 4E9196
K - 4E6641
E-7 *
K - 4E6641
Park Brake Sw
F-7
B - 4E9196
U - 4E6635
A-7 *
L - 4E6642
Fuel Sensor
F-7
E - 4E6638
U - 4E6635
A-2
W - 9U1419
Service Plug (Trans)
E-8
E
A - 4E8279
G - 4E7243
A-5 *
Q - 4E8277
Steer Lock Sw
F-4
E
A - 4E8279
S - 9U0785
C-4
B - 4E9196
F - 4E6636
C-11
*
D - 4E8229
Front Wiper Sw
D-4
*
D - 4E8229
Radio
F-5
*
Q - 4E8277 Std
Shifter Control
F-4
*
Q - 9U3907 Atch
Shifter Control
F-10
*
LL -713312
Payload Display
A-2
Machine locations are repeated for connectors located close together.
* = Connector is located at the component.
A = Connectors located in dash area.
D = Connectors located in relay panel area.
E = Connectors located in right side service compartment.
6 Contacts
4 Contacts
8 Contacts
40 Contacts
20 Contacts
12 Contacts
Failure Mode Identifiers (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 Electrical Service Manuals
Form Number
Computerized Monitoring System (CMS) SENR5247
Payload Measurement System (PMS) SEHS9307
Electronic Transmission Control SENR5704
Starting And Charging Systems SENR2947
Starting Motor (50-MT):
Consist No. 3T-8967
SENR3860
Title
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
9X-4383
Resistor - Blower Speed
Overall 3.0 ± .15
Tap 1.0±.05
3E-7842
Resistor - Starter/Diagnostic Conn
150.0 ± 7.5
8T-8813
Solenoid - A/C Clutch
14.4 ± 0.6
6I-2090
Solenoid - Engine Shutdown
3.7 ± 0.4
3E-6333
Solenoid - Start Aid
6.0
3E-3748
Solenoids - Transmission
8.5
4V-1222
Solenoid - VCTC Valve
41.5 ± 4.2
¹ At room temperature unless otherwise noted.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
3E-6452
Brake Pressure
8270 kPa MAX
(1199 psi MAX)
6890 ± 345 kPa
(1000 ± 50 psi)
A-B, Normally Open
A-C, Normally Closed
4E-4456
Neutralizer Pressure
790 ± 140 kPa
(114 ± 20 psi)
690 ± 105 kPa
(100 ± 15 psi)
Normally Closed
8N-1693
Coolant Temperature (St Aid)
38 ± 3°C
(100 ± 5°F)
27°C MIN
(80°F MIN)
Normally Closed
9X-7781
Trans Filter Pressure
210 ± 70 kPa
(30 ± 10 psi)
-
-
Normally Open
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits
101 RD
BAT
500 BR
WIPER - FRONT (PARK)
102 BU
HD LMP
501 GN
WIPER - FRONT (LO)
103 YL
AUX CKT
502 OR
WIPER - FRONT (HI)
105 BR
KEY SW
503 BR
WIPER - REAR (PARK)
106 WH
AUX CKT
504 YL
WIPER - REAR (LO)
107 WH
ENG SHUT - DOWN FIRE SUPPR
505 BU
WIPER - REAR (Hi)
109 OR
ALT OUTPUT (+) TERM.
506 PU
WASHER - FRONT
112 PU
MAIN POWER RELAY OUTPUT
507 WH
WASHER - REAR
113 OR
OPR MON PANEL VMIS B+ SWITCHED
508 PU
RADIO SPEAKER - LEFT
114 GN
WARNING HORN (FORWARD)
509 WH
RADIO SPEAKER - LEFT (COMMON)
118 GY
AUX CKT
511 BR
RADIO SPEAKER - RIGHT
124 GN
A/C
512 GN
RADIO SPEAKER - RIGHT (COMMON)
128 PK
AUX CKT
513 OR
A/C COMPRESSOR/REFRIGERANT PRESS. SW
129 BU
AUX CKT
515 GY
BLOWER MOTOR (HI)
138 GN
AUTO LUBE PUMP TO PAYLOAD MON
516 GN
BLOWER MOTOR (MEDIUM)
140 BU
AUX CKT
517 BU
BLOWER MOTOR (LO)
150 OR
EUI (ADEM)
519 PK
THERMOSTAT TO REFRIGERANT PRESS. SW
164 WH
HYDRO CONT TO WTL POWERTRAIN CTRL
520 WH
OPR A/C SW TO THERMOSTAT/FUSE
Ground Circuits 537 GN
TURN SIGNAL SW TO FLASHER
200 BK
MAIN CHASSIS
592 BU
DC/DC CONVERTER POWER OUTPUT
201 BK
OPR MON PANEL VMIS CMS
A513 PK
DC/DC CONVERTER MEMORY OUTPUT
202 BK
XMSN CONT
A515 BR
BLOWER MOTOR #2 (HI)
203 BK
CHASSIS DIAGNOSTIC
A517 OR
BLOWER MOTOR #2 (LO)
207 BK
STARTER DIAGNOSTIC
Lighting Circuits
250 BK
PAYLOAD MON - CUSTOMER GROUND
600 BR
DASH LAMP BASIC
251 BK
PAYLOAD MON - SYSTEM GROUND
604 OR
STOP LAMP
270 BK
CMS IDENT CODE 0
605 YL
TURN LAMP - LEFT
271 BK
CMS IDENT CODE 1
606 GY
TURN LAMP RIGHT
272 BK
CMS IDENT CODE 2
607 PK
FLOOD LAMP - FRONT
273 BK
CMS IDENT CODE 3
610 OR
HEAD LAMP BASIC
274 BK
CMS IDENT CODE 4
615 YL
CAB FLOOD LAMP/ROPS
278 BK
XMSN CONT IDENT CODE 2
616 BU
BUCKET FLOOD LAMP/BOOM FLOOD LAMP
279 BK
XMSN CONT IDENT CODE 3
637 GN
LCL LAMP
280 BK
XMSN CONT IDENT CODE 4
644 OR
BRIGHTNESS ADJUST
281 BK
XMSN CONT IDENT CODE 5
Control Circuits
290 BK
SERVICE
709 OR SENSOR POWER SUPPLY
291 BK
CLEAR
710 GN XMSN SPEED PICKUP SIGNAL
Basic Machine Circuits 751 GN XMSN SHIFT SOL NO. 1 OR 3
301 BU
STARTER NO. 1 SOL
752 YL XMSN SHIFT SOL NO. 2
302 OR
STARTER NO. 1 RESISTOR TO DIAGNOSTIC
754 BU XMSN SHIFT SOL NO. 3 OR 1
304 WH
STARTER RELAY NO. 1 OUTPUT
755 OR XMSN SHIFT SOL NO. 4 OR 5
306 GN
STARTER RELAY COIL TO NEUT START SW OR
KEY SW
761 GY LIFT KICKOUT SOL SW
307 OR
KEY SW TO NEUT START SW OR VMIS SENSOR
MODULE
762 YL BUCKET POSITIONER SOL SW
308 YL
MAIN POWER RELAY COIL
D721 WH WTL XMSN CONT TORQUE LIMIT INPUT
310 PU
START AID SW TO START AID SOL
D725 OR
WTL XMSN CONT LOCK-UP CLUTCH
PROPORTIONAL SOL
311 WH
START AID SOL TO TEMP SW
D726 PU WTL XMSN CONT STEERING CONSOLE SW 1
313 GY
STARTER NO. 2 RESISTOR TO DIAGNOSTIC
D727 YL WTL XMSN CONT STEERING CONSOLE SW 2
314 PU
STARTER RELAY NO. 2 OUTPUT
D728 BU WTL XMSN CONT FORWARD SW TO GND
321 BR
BCKP ALARM LAMP TRAVEL ALARM
D729 GY WTL XMSN CONT REVERSE SW TO GND
322 GY
WARNING HORN (FORWARD)
D730 GN WTL XMSN CONT SPEED 1 SW TO GND
326 PU
KEY SW “C” TERM.
D731 WH WTL XMSN CONT SPEED 2 SW TO GND
327 PK
SHUTDOWN SOL
D732 YL WTL XMSN CONT SPEED 3 SW TO GND
338 PK
FLOOD LAMP RELAY COIL
D733 BR WTL XMSN CONT SPEED 4 SW TO GND
Monitoring Circuits D734 PU WTL XMSN CONT NEUTRAL SW TO GND
403 GN
ALTERNATOR (R)TERM.
D735 PK
WTL XMSN CONT PARK BRAKE LEVER SW TO
GND
410 WH
OPR MON ACTION ALARM
D736 GN WTL XMSN CONT LOCKUP ENABLE SW
411 PK
OPR MON ACTION LAMP
D756 YL CMS PARK BRK - LVR STEER
412 BU
OPR MON COOLANT FLOW
D757 OR TRANSMISSION NEUTRALIZER SW #2
417 GY
PRIMARY STER SW
D758 PU QUICKSHIFT SW (N.C.) LEVER STEER
419 YL
OPR MON PARKING BRAKE
D759 WH QUICKSHIFT SW (N.O.) LEVER STEER
426 BR
OPR MON POWER TRAIN OIL FILTER
818 BR SERIAL DATA (TRANSMIT)
432 PK
OPR MON BRAKE PRESS. (OIL)
819 GY SERIAL DATA (RECEIVE)
441 OR
ENG COOLANT TEMP GAGE
820 BU TRANSMIT KEY
442 GY
HYD SYSTEM TEMP GAGE
863 BU PAYLOAD MON TRANSMIT LCD OUT
443 YL
POWER TRAIN TEMP GAGE
864 BR PAYLOAD MON CLOCK LCD OUT
447 PK
FUEL LEVEL GAGE
865 GY PAYLOAD MON LATCH LCD OUT
450 YL
TACH SENDER (+)
900 PU XMSN SHIFT SOL NO. 5 OR 4
452 PU
TORQUE CONVERTER
901 WH XMSN SHIFT SOL NO. 6
464 GY
OPR MON PANEL ENG OIL PRESS. SENSOR
944 OR CMS COMM +
A401 YL
ELECTRICAL SYSTEM NO.1 VOLTAGE
945 BR CMS COMM -
B412 YL
WTL PMS LIFT POS SENSOR
975 WH CST AUTOSHIFT- SOL RETURN
B413 PU
WTL PMS LIFT CYL PRESS. SENSOR
976 OR RIDE CONT SOL
B414 OR
WTL PMS NORM/CALIBRATE OUT
B415 PK
WTL PMS CLEAR / CHG OUT
B416 WH
WTL PMS REWEIGH SW IN
B417 YL
WTL PMS STORE SW IN
B475 OR
PARK BRAKE SW #2
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
7
1
2
3
4
5
6
7
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
7
1
2
3
4
5
6
7
8
MACHINE HARNESS CONNECTOR AND COMPONENT LOCATIONS
C48646P1
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
1
1
1
2
1
3
1
1
4
5
1
8
1
8
7
6
4
1
L9
L28
L41
L13
L14
L48
2
1
B
C
A
1
2
A
C
B
2
1
8
7
1
6
2
3
6
5
1
2
4
3
2
1
4
5
6
3
8
A
B
C
C
B
A
8
7
6
5
2
1
3
4
1
2
3
4
5
6
7
8
9
10
11
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
D
C
B
A
F
E
D
C
B
A
12
8
6
5
3
12
5
4
3
12
11
7
6
5
4
3
3
4
2
C
2
4
3
2
2
13
B
A
1
8
7
6
5
4
3
2
1
6
2
3
3
4
5
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
3
4
2
2
1
4
3
8
7
6
4
12
1
7
5
4
3
6
2
1
C
5
9
8
2
1
2
1
A
C
B
5
3
6
2
1
4
11
9
10
12
7
8
3
1
7
1
6
1
5
4
3
2
8
7
6
5
4
3
2
1
5
3
6
A
2
B
A
2
1
1
10
C
3
4
2
4
5
1
6
3
12
11
10
2
2
4
7
6
5
6
4
5
C
5
4
3
2
1
A
7
2
1 3
2
1
C
A
B
1
6
B
C
C
3
B
A
4
8
14
1
5
6
C
2
15
16
17
18
19
20
1
4
1
2
B
2
A
1
2
2
3
5
6
7
8
C
B
1
2
3
4
2
C
C
1
2
3
6
1
2
1
5
2
4
5
1
1
2
3
2
1
4
4
1
2
1
2
1
4
11
1
1
1
2
15
14
13
12
20
19
4
2
1
3
2
7
11
12
5
2
7
8
9
10
6
1
18
3
1
6
7
17
16
5
3
2
4
8
1
9
9
16
17
15
2
6
1
7
8
B
C
A
2
14
1
2
10
B
13
27
24
23
22
21
20
19
18
17
16
15
14
13
12
C
11
10
9
7
6
5
10
20
2
11
A
3
4
12
4
11
6
5
10
9
7
2
1
8
3
2
1
4
C
B
A
C
B
A
12
8
11
A
B
C
A
B
5
1
9
10
1
10
2
19
B
A
2
9
18
4
3
7
6
8
1
1
607-PK607-PK
604-OR
HH
600-BR
975-WH-18
321-BR-18
607-PK
607-PK
200-BK
200-BK
F
BK
200-BK
F
F
FLOOD LAMP
9X-1439
604-OR
600-BR
F
STOP-TAIL
LAMP
3E-6467
S
T WH-18
RD-18
BK-18G
200-BK
BACKUP
ALARM
3E-7738
BK
TURN
LAMP
3E-6466
605-YL
200-BK
F
BK-18
RD-18
200-BK
G BK-18
RD-18
WH-18T
S
STOP-TAIL
LAMP
3E-6467
F
600-BR
604-OR
FLOOD LAMP
9X-1439
F
F
200-BK
200-BK
BK-18
606-GY
TURN
LAMP
3E-6466
F
RD-18
321-BR-18
200-BK-14
605-YL
606-GY
975-WH-18
F
607-PK
600-BR
604-OR
B
200-BK
SS
SS
SS
SS
SS
SS
FORWARD
HORN
7T-0970
SS
200-BK-14
610-OR
3
6
4
2
606-GY
114-GN
607-PK
322-GY
FLOOD LAMP
9X-6775
HEAD LAMP
9X-7166
1
200-BK
200-BK
606-GY
RH TURN
LAMP
5C-8964
Y
Y
200-BK-14
114-GN
322-GY
607-PK
610-OR
605-YL
610-OR
607-PK
322-GY
605-YL
114-GN
200-BK-14
Y
E
Y
Y
200-BK
200-BK
FLOOD LAMP
9X-6775
HEAD LAMP
9X-7166
XMSN
SPEED
SENSOR
3E-8848
LH TURN
LAMP
5C-9029
605-YL
200-BK
WH-18
BK-18
CIRCUIT GROUPING
DESIGNATION
#L
ATCH WIRE, CABLE,
COMPONENT
CIRCUIT NOT CONNECTED
CIRCUIT CONNECTED
BLADE, SPADE, RING,
OR SCREW TERMINAL
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
ELECTRICAL CONNECTION
TO VEHICLE STRUCTURE
CONNECTOR
SYMBOL DESCRIPTION
200-BK-14
GN-18
B
B
450-YL-18
CUSTOM MACHINE
CUSTOM MACHINE
B
A
710-GN-18
709-OR-18
710-GN-18
FORWARD
HORN
7T-0969
STEERING STIC ONLY:
605-YL - TERMINAL 2
606-GY - TERMINAL 3
537-GN - TERMINAL 1
DDD
DDD
DDD
DDD
DDD
NOTE G
D-6
NOTE G: CONNECT THESE WIRES TO TURN SIGNAL SW
ACCORDINGLY:
J00101-7633DDD
3
4
2
1
605-YL
606-GY
L50
L50
L52
L52
L52
L52
L50
L50
L51
L51
L51
A
L51
L51
L48
L48
200-BK
L48
L48
606-GY
605-YL
TURN
SIGNAL
SW
9G-5589
FLASHER
8V-2514
L48
606-GY
606-GY 606-GY
605-YL605-YL
605-YL
STEERING WHEEL ONLY:
605-YL - TERMINAL 3
606-GY - TERMINAL 2
537-GN - TERMINAL 1
537-GN
L48
L48
605-YL
606-GY
537-GN
14
5
6
2
3
102-BU
200-BK
537-GN
GROUND
C
C2
31
49A
49
HEAD LAMP
+ BATTERY
30B
Q
W
D731-WH-18
D732-YL-18
D734-PU-18
D729-GY-18
D730-GN-18
D728-BU-18
202-BK-18
D733-BR-18
TURN
HAZARD
ATCHF-1100
NOTE: FOR USE ON VEHICLES
WITH STEERING WHEEL ONLY
Q
L48
L48
L49
L49
L49
606-GY
605-YL
605-YL
606-GY
605-YL
606-GY
200-BK-14
442-GY-18
606-GY
605-YL
604-OR
600-BR
200-BK
605-YL
606-GY
605-YL
604-OR
B495-OR-18
S
S
S
761-GY
S
308-YL
308-YL
114-GN
129-BU
T
T
T
T
T
T
A
TT
TT
TT
TTTT
1
2
3
4
6
5
BK-18
TT
Z
NOTE: FOR USE
ON VEHICLES
WITH STEERING
WHEEL ONLY
STD
ATCHC-300
TT
F-9018E-6402TT
7I-3511Z
128-PK-18
128-PK-18
537-GN
606-GY
605-YL
BBB
BBB
BBB
BBB
BBB
BBB
202-BK-18
CODE
PLUG
278-BK-18
279-BK-18
W
RADIO GP
3E-7141
RD
BK
600-BR
202-BK-18
306-GN
306-GN
113-OR-18
975-WH-18
306-GN
200-BK
109-OR-4 112-PU-4
200-BK-14
313-GY
314-PU-8
314-PU-8
314-PU
308-YL
B
MAIN RELAY
3T-0376
A401-YL-18
975-WH-18
A401-YL-18
RESISTOR
3E-7842
ENGINE SHUTDOWN
CONTROL
3E-0462
203-BK
113-OR-18
2
+ BATTERY
GROUND
ENG SOL
RESET
OFF (KEY)
OFF
RD
BK
YL
WH
OR
BU
101-RD
15
14
17
18
19
20
ALTERNATOR
BREAKER
9S-4693
MAIN BREAKER
9S-4693
105-BR
RUNNING LAMPS BREAKER
9G-9882
NOTE H
KEY BREAKER
9G-9487
SHUTDOWN
BREAKER
6N-8589
11
8
6
4
2
4
25
5
12
24
17
15
16
23
18
20
22
3
203-BK
113-OR-18
RELAY PANEL 4E-8062
RELAY PANEL
4E-8062
109-OR-4
101-RD-4 106-WH-4
109-OR-8
107-WH-14
101-RD-12
101-RD-14
101-RD
102-BU
311-WH
1
304-WH
105-BR
310-PU
112-PU
200-BK
310-PU
112-PU-4
308-YL
306-GN
326-PU
105-BR
112-PU
308-YL
306-GN
105-BR
306-GN
J
304-WH
304-WH-8
327-PK-14
327-PK-14
302-OR
200-BK-14
304-WH-8
DIAGNOSTIC CONNECTOR
J
J
80A
109-OR
101-RD
302-OR
313-GY
101-RD
J
80A
15A
10A
10A
311-WH
306-GN
306-GN
10
12
4
7
3
16
6
8
9
5
1
2
13
11
21
11
1
13
6
8
14
9
7
19
3
10
12
9
5
1
7
2
START RELAY
3E-0075
J
975-WH-18
975-WH-18
J
101-RD-14
102-BU
C
207-BK
207-BK
326-PU
J
200-BK-14
NOTE: SWITCH SHOWN
WITH BRAKE PEDAL UP
D-7
4E-8278 01 B-5
WH/BK,GN/BK
WH,GN
GY,VI
GY/BK,VI/BK
LEFT SPKR
ANTENNA
YY
YY
YY
YY
YY
THIS SCHEMATIC IS FOR THE 988F WHEEL LOADER
(9X-9883 CHG 00)
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
U
H
H
H
H
A-703
ATCH
F-2004E-9103
ZZ
ZZ
ZZ
200-BK-14
D-6024E-8277
4E-9286 01 F-11
Y
Y
Y
Y
B-1024E-6643
4E-5763
K K
A-10019U-2275
4E-9104 02 F-2
ZZ
H
A-5004E-7243
604-OR
600-BR
F
200-BK
607-PK
4E-6638
E
E
114-GN114-GN
322-GY 322-GY
200-BK-14
610-OR610-OR
200-BK-14
607-PK
607-PK
LEFT SPKR
519-PK
NC
NC
+ BATTERY
GROUND
311-WH
A-1100105-0502
F
327-PK-14
441-OR-18
443-YL-18
113-OR-18
113-OR-18
113-OR-18
201-BK-18
201-BK-18
201-BK-18
201-BK-18
C-1003
E-6
113-OR-18
201-BK-18
D736-GN-18
202-BK-18
201-BK-18
D721-WH-18
C-6044E-9196
B
B
B
A
BK-18
BK-18
BK-18
BK-18
BK-18
200-BK
128-PK
761-GY
E-5023E-7325BBB
D-12002W-8715WW
D-1200
200-BK
976-OR
B413-PU-18
129-BU-18
251-BK-18
LIFT CYLINDER
PRESSURE
SENSOR
103-2040
LIFT POSITION
SENSOR
9X-9100
WH-18
RD-18
BK-18
SIGNAL
GROUND
+V
RIGHT SPKR
752-YL-18
975-WH-18
975-WH-18
901-WH-18
755-OR-18
754-BU-18
751-GN-18
900-PU-18
TO ENGINE
BK-4
615-YL-14
200-BK-14
102-BU
610-OR
607-PK
322-GY
ATCHD-1
114-GN
017I-3313
VV
VV
A
RIGHT SPKR
L43
L44
200-BK
GN
STARTER
3T-8967
302-OR
GN
301-BU
513-OR
L38L38
L38
L38
L40
L40
L40
ATCH
L41
9U-3907Q
B-1017I-3817M
B-6044E-8279
CHG
A
02 B-1
N
M
L
F-7024E-6642
4E-6641 03
306-GN
D721-WH-18
321-BR-18
752-YL-18
419-YL-18
901-WH-18
751-GN-18
900-PU-18
755-OR-18
754-BU-18
975-WH-18
D733-BR-18
945-BR-18
D735-PK-18
452-PU-18
SOL 1 - REV
35
31
36
944-OR-18
33
32
202-BK-18
23
22
39
34
PARK BRK SW (N.C.)
DOWNSHIFT SW (N.O.)
SOL RETURN
SOL 3 - SPD 4
SOL 4 - SPD 3
START RELAY
SOL 5 - SPD 2
SOL 6 - SPD 1
37 BACKUP ALARM
38
SOL 2 - FWD
OPTION PLUG 1
TORQUE CONVERTER SPD
OPTION PLUG 2
3
26
10
D726-PU-18
D728-BU-18
D730-GN-18
D729-GY-18
D734-PU-18
D727-YL-18
307-OR
D732-YL-18
9
8
D731-WH-18
164-WH-18
UPSHIFT SW (N.C.)
REVERSE SW TO GND
2
16
17
27
5
25
24
29
30
NEUTRALIZER SW
GROUND
18
13
S
426-BR-18
201-BK-18
3E-7739
412-BU-18
XMSN
SHIFTER
8C-5329
D734-PU-18
D729-GY-18
202-BK-18
D728-BU-18
D730-GN-18
HH
B-1202
Y
2G-1830UU
D-1101
C
4E-9682
C
9U-3919 01 A-6
129-BU-18
762-YL
251-BK-18
B
B413-PU-18
7K-1831
E
E
N
M
128-PK
128-PK
00
CCC
CCC
D731-WH-18
D732-YL-18
D733-BR-18
L49
L43
200-BK
128-PK
761-GY
128-PK
A
B
200-BK-14
200-BK
762-YL
CABLE AS.
200-BK
B412-YL-18
YY
976-OR
200-BK-14
ZZ
200-BK
A
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
NOTE B: NORMALLY OPEN BEFORE INSTALLATION
NOTE C: NORMALLY CLOSED BEFORE INSTALLATION
NOTE D: THE CAT LINK WIRES MUST BE TWISTED
TOGETHER AT LEAST 1 TURN PER INCH
NOTE E: FOR USE ON CUSTOM VEHICLES ONLY
NOTE F: NOT USED ON THIS VEHICLE
SERVICE
MODE
PLUG
LL
200-BK-14
4E-6635
202-BK-18
202-BK-18
200-BK
278-BK-18
279-BK-18
202-BK-18
607-PK
LOC
GG
VV
EE
QQ
200-BK
610-OR
A
PP
NN
MM
SS
U
B413-PU-18
976-OR
251-BK-18
FF
NOTE E
WIRE AS.
DD
Z
200-BK-14
CC
BB
AA
Y
X
W
V
T
S
R
Q
P
N
M
L
K
J
H
G
F
E
D
C
B
A
HARNESS AS.
PART NO.IDENT
A
A
BLUE
GREEN
BU
GN
RD
WH
OR
YL
PK
BK
BROWN
PURPLE
GRAY
BLACK
ABBREV
PINK
YELLOW
ORANGE
WHITE
RED
BR
PU
GY
976-OR
ALTERNATOR
3E-7577
SHUTDOWN
SOLENOID
6I-2090
F
BACKUP
ALARM
3E-7738
BK
BK
T
D756-YL-18
201-BK-18
BK
BK
WW
201-BK-18
432-PK-18
L41
L42
STOP LAMP SW
9X-0023
NOTE C
129-BU-18
B412-YL-18
200-BK-14
129-BU-18
251-BK-18
200-BK-14
327-PK-14
L42
C
C
F
COOLANT SW
8N-1693
COOLANT SW
3E-6428
311-WH
200-BK-14
200-BK-145
109-OR-4
403-GN
PARK
BRAKE
PRESS SW
3E-6452
COLOR
200-BK-14
L5
L5
L5
L36
L36
L36
BRAKE
PRESS SW
3E-6452
L36
L16
BK
RD
BU
L16
201-BK-18
L16
L16
L39
L39 L39
L28
RR LL
9
8
200-BK
7
6
BK-4
4
3
2
1
20
B412-YL-18
R
D-11
19
18
17
009U-1441
D-11014E-6622
F-12029U-1439
A-12024E-6627
F-12014E-6628
A-1202
K
L
4E-6625
A-12/F-12009U-1440
JJ
+
R
USED ON
VEHICLES
WITH
AUTOSHIFT
ONLY
JUMPER 9U-1064
IS USED ON ALL
VEHICLES EXCEPT
THOSE WITH
AUTOSHIFT
200-BK-14
450-YL-18
709-OR-18
710-GN-18
GN-18
CC
200-BK-14
441-OR-18
464-GY-18
443-YL-18
412-BU-18
403-GN
311-WH
16
28
976-OR
B412-YL-18
20
21
B413-PU-18
251-BK-18
129-BU-18
15
14
419-YL
STOP-TAIL
LAMP
3E-6467
F
F
607-PK
TRANS FILTER SW
9X-7781
NOTE B
200-BK
607-PK
604-OR
600-BR
7I-3311
604-OR
202-BK-18
201-BK-18
975-WH-18
432-PK-18
13
12
11
5
TRANSMISSION CONTROL
3E-6306
AA
02
AAEE
SENSOR +8V
BB
D725-OR-18
CC
JJ
202-BK-18
452-PU-18
C
C
975-WH-18
D725-OR-18
DATA LINK -
DATA LINK +
11
15
14
19
12
BU
RD
BK
JJ
GG
975-WH-18
EE
40
D736-GN-18
GG
DD
F-7
BB
2
AA
1
975-WH-18
S
T
202-BK-18
607-PK
D736-GN-18
FORWARD
HORN
7T-0969
419-YL-18
D735-PK-18
RR
D721-WH-18
306-GN
307-OR
945-BR-18
251-BK-18
129-BU-18
B415-PK-18
506-PU
B414-OR-18
B417-YL-18
B416-WH-18
863-BU-18
864-BR-18
818-BR-18
944-OR-18
164-WH-18
820-BU-18
250-BK-18
865-GY-18
819-GY-18
5
607-PK
200-BK-14
610-OR
322-GY
114-GN
E
SS
10
S
S
S
S
S
BK
WH
S
600-BR
200-BK
A
5
6
Q
321-BR-18
Q
202-BK-18
6
321-BR-18
975-WH-18
6
5
2
(LUC ONLY)
710-GN-18
605-YL
710-GN-18
975-WH-18
975-WH-18
2
D758-PU-18
LOCKUP CLUTCH
SOLENOID
7X-1120
TORQUE CONVERTER
SPEED SENSOR
9G-6724
307-OR
200-BK
200-BK-14
200-BK-14
200-BK
200-BK-14
B412-YL-18
B413-PU-18
251-BK-18
129-BU-18
B412-YL-18
B413-PU-18
251-BK-18
129-BU-18
200-BK
3
200-BK-14
D-5
E-E
FRAME
GROUND
D756-YL-18
503-BR
504-YL
505-BU
034E-8229
D726-PU-18
WH-18
WH-18
WH-18
WH-18
4
A
A
762-YL
2
606-GY
3
200-BK
B
B
A515-BR
5
600-BR
A517-OR
515-GY
QQ
RD
D730-GN-18
D731-WH-18
RD
A
128-PK
NN
D732-YL-18
D729-GY-18
D734-PU-18
UPSHIFT (N/O)
DOWNSHIFT (N/C)
DOWNSHIFT (N/O)
UPSHIFT (N/C)
FORWARD SW
975-WH-18
BK
201-BK-18
417-GY-18
WH
114-GN
B475-OR-18
607-PK
610-OR
322-GY
128-PK-18
761-GY
762-YL
REVERSE SW
NEUTRAL SW
A
GROUND
200-BK
507-WH
RR
MOTOR
REAR WASHER
MOTOR
7T-8890
200-BK-14
FWD SW TO GND
114-GN
128-PK
200-BK-14
762-YL
761-GY
607-PK
FRONT WASHER
MOTOR
7T-8890
610-OR
322-GY
+V
D759-WH-18
280-BK-18
D757-OR-18
281-BK-18
L47
113-OR-18
201-BK-18
201-BK-18
615-YL-14
201-BK-18
201-BK-18
201-BK-18
710-GN-18
D736-GN-18
203-BK
AIR
SUSPENSION
SEAT
8Y-6801
200-BK-14
202-BK-18
2
HEAD LAMP
9X-7166
L47
202-BK-18
1
D
-
1
W
610-OR
607-PK
322-GY
W
R
R
615-YL
200-BK
KK
200-BK-14
B
L47
UU
140-BU
200-BK
102-BU
FLOOR BLOWER SW
3E-7174
YL
600-BR
B-2/D-2
102-BU
D
FLOOD LAMP
9X-6775
RR
321-BR-18
975-WH-18
975-WH-18
L16
MM
D
615-YL-14
200-BK-14
D
519-PK
975-WH-18
975-WH-18
615-YL-14
200-BK-14
D
BP
J
J
J
11
10
4
NOTE F
J
D
102-BU
200-BK
D
D
D733-BR-18
202-BK-18
710-GN-18
L47
L47
201-BK-18
L47
L47
L44
L44
L44
L44
200-BK-14
200-BK
B415-PK-18
B414-OR-18
B417-YL-18
865-GY-18
200-BK
BK-18
RD-18
WH-18
124-GN-14
D
975-WH-18
280-BK-18
752-YL-18
754-BU-18
755-OR-18
901-WH-18
751-GN-18
900-PU-18
L
N
M
C
E
F
K
BU
D
BR
UNUSED
507-WH
503-BR
504-YL
505-BU
B
WP
L
H
B
200-BK-14
200-BK-14
118-GY
118-GY
118-GY
200-BK
592-BU
102-BU
200-BK
200-BK
592-BU
A513-PK-18
140-BU
B
GN
GY
BR
OR
H
L
MOTOR
T
D
512-GN-18
511-BR-18
508-PU-18
509-WH-18
THERMOSTAT SW
3E-5465
200-BK
102-BU
600-BR
RESISTOR
9X-4383
G
BBB
BBB
515-GY
202-BK-18
C
B
A
RD
BLOWER
MOTOR
3E-7757
BLOWER SW
6P-3236
517-BU
515-GY
OPERATOR STATION
KK
506-PU
516-GN
520-WH
124-GN
592-BU
200-BK
592-BU
D
D
LEVER
STEER
SHIFTER
3E-0090
W
200-BK
NEUTRALIZER SW (N.C.)
J
I
102-BU
KK
616-BU-14
B416-WH-18
519-PK
519-PK
SS
819-GY-18
820-BU-18
818-BR-18
615-YL-14
519-PK
864-BR-18
114-GN
513-OR
114-GN
B
1
02
E
863-BU-18
250-BK-18
502-OR
501-GN
500-BR
507-WH
L47
251-BK-18
202-BK-18
B413-PU-18
B412-YL-18
202-BK-18
129-BU-18
CLEAR/CHG SW IN
NORM/CAL SW IN
STORE SW IN
LCD LATCH
506-PU
592-BU
SOL 4
3RD GEAR
SOL 5
2ND GEAR
SOL 6
1ST GEAR
REWEIGH SW IN
RX IN
TX KEY OUT
TX OUT
LCD CLOCK
TX LCD OUT
LINK GND
UNUSED
UNUSED
GROUND
UNUSED
UNUSED
LIFT PRESS SENS
LIFT POS SENS
UNUSED
+24V (IN)
PAYLOAD
MONITOR ECM
3E-9292
NOTE G
124-GN-14
SIG (SHALLOW)
YL-18
610-OR
B
F
C
STOP-TAIL
LAMP
3E-6467
S
T
200-BK
202-BK-18
607-PK
Y
710-GN-18
Y
Y
A
114-GN
NEUTRALIZER
PRESSURE SW
4E-4456
12 V BATTERY
3T-5760
200-BK-18
VCTC
SOLENOID
VALVE
4V-1222
C
200-BK-14
118-GY
A
B+
P
GND
D
RESISTOR
3E-7842
DISCONNECT SW
7N-0719
NEGPOS
NEGPOS
202-BK-18
BK-18
BK-18
201-BK-18
D
QUICKSHIFT SW (N.O.)
QUICKSHIFT SW (N.C.)
CLEAR MODE
PARK BRK SW (N.O.)
LUC SW TO B+
BK-00
D721-WH-18
202-BK-18
HOOD FLOOD LAMP
9X-6775
K
J
J
WH-18
WH-18
RD-18
RD-18
BK-18
BK-18
113-OR-18 113-OR-18
G S
MTR BAT
MOTOR
RD-00
G
327-PK-14
D
D
START AID
SOLENOID
3E-6333
REFRIGERANT SW
5V-5698
NOTE A
B
B
H
311-WH
310-PU
202-BK-18
419-YL
STEER CONSOLE SW (N.O.)
D735-PK-18
201-BK-18
102-BU
J
304-WH-8
D757-OR-18
452-PU-18
D725-OR-18
604-OR
D721-WH-18
J
J
200-BK-14
615-YL-14
BK-00
BK-00
BK
T
516-GN
200-BK
BK
102-BU
118-GY
200-BK
200-BK
2
3
311-WH
114-GN
610-OR
D728-BU-18
507-WH
600-BR
POS NEG
12 V BATTERY
3T-5760
J
J
J
J
D759-WH-18
L37
A513-PK-18
517-BU
RUNNING
LAMP SW
3E-7181
D758-PU-18
RD-00
D736-GN-18
KEY SW TO B+
STEER CONSOLE SW (N.C.)
710-GN-18
D726-PU-18
D728-BU-18
D730-GN-18
D729-GY-18
A
202-BK-18
D734-PU-18
L19
L19
L19
L19
SOL 3
4TH GEAR
SOL 2
FORWARD
SOL 1
REVERSE
D727-YL-18
D732-YL-18
412-BU-18
441-OR-18
207-BK
443-YL-18
SERVICE MODE
J
+ BATTERY
NEUTRAL SW TO GND
DOWNSHIFT SW (N.C.)
426-BR-18
UPSHIFT SW (N.O.)
L19
L18
RD-00
Y
BK-00
604-OR
600-BR
311-WH
200-BK-14
304-WH-8
607-PK
101-RD-4
302-OR
109-OR-4
L16
L15
L15
D731-WH-18
506-PU
412-BU-18
L15
L15
A
A
6
L12
L12
A
L13
W
L13
604-OR
L10
J
L14
A
RD-00
4
311-WH
441-OR-18
443-YL-18
464-GY-18
403-GN
201-BK-18
YL-18
BK-18
RD-18
SIGNAL
+B
GROUND
A
B
C
UNUSED
RD-00
ENGINE OIL PRESSURE
SENSOR
3E-3530
207-BK
A
MM
NOTE H: WITH ATCH TURN SIGNAL SWITCH, REPLACE
RUNNING LAMP BREAKER 9G-9882 WITH 3T-2662
419-YL-18
TRANSMISSION SOLENOID
VALVES
3E-3748
DOME LAMP
3E-6389
202-BK-18
447-PK-18
LOCKUP CL SOL
201-BK-18
G
BU-18
FF
FF
WW
BK-00
AUX START
RECEPTACLE
UU
UU
HH
442-GY-18
200-BK
200-BK
HH
BK-00
BK-00
RD-00
BK-00
BK-00
RD-00
J
201-BK-18
HYDRAULIC
SENSOR
3E-5370
A
GROUND
+B
SIGNAL
OR-18
BK-18
WH-18
200-BK-14
BK-18
OR-18
SIG (DEEP)
101-RD-4
BK-00
034E-6636
C
B
C-11
200-BK
S
513-OR
607-PK
200-BK
200-BK
FLOOD LAMP
9X-1439
B+
F
4E-6661 02 B-11
102-BU
200-BK
A
201-BK-18
HH
200-BK
HH
D757-OR-18
A
202-BK-18
201-BK-18
GROUND
113-OR-18
109-OR
A
B
9U-1419
202-BK-18
201-BK-18
426-BR-18
101-RD
201-BK-18
201-BK-18
710-GN-18
200-BK
N/O
310-PU
C
107-WH-14
C
201-BK-18
447-PK-18
411-PK-18
410-WH-18
201-BK-18
A
500-BR
A
A
592-BU
520-WH
4
403-GN
C
C
BK-18
129-BU
BK-18
200-BK
D757-OR-18
A
113-OR-18
1
2
200-BK
BK-18
124-GN
A
200-BK
B475-OR-18
D
D
D
200-BK-14
4E-6644
616-BU-14
102-BU
3. ACTUAL TRANSMISSION GEAR INDICATOR - FOR CMS DISPLAY
2. PARKING BRAKE STATUS - OFF OR ON
1. TRANSMISSION NEUTRAL - FOR PARKING BRAKE WARNING
201-BK-18
501-GN
FORWARD
HORN SW
7T-2296
D756-YL-18
D757-OR-18
113-OR-18
BUS BAR
9W-0742
NEUTRALIZER
LIMIT SWITCH
9X-4232
DATA LINK WILL SEND THE FOLLOWING INFO FROM
THE POWERTRAIN CONTROL TO CMS:
OPERATOR STATION
412-BU-18
N/C
1 3
2
202-BK-18
GROUND
761-GY
D736-GN-18
C
C-4
TO ENGINE
END FRAME
D736-GN-18
02
447-PK-18
ENGINE SPEED SENSOR
BK-18
201-BK-18
2
1
200-BK-14
PARK
BRAKE SW
3E-5181
HH
604-OR
200-BK-14
202-BK-18
426-BR-18
C
TO ENGINE
202-BK-18
607-PK
600-BR
604-OR
201-BK-18
113-OR-18
B475-OR-18
J
201-BK-18
201-BK-18
ATCH
BK-18
BK-18
FLOOD LAMP
9X-1439
G
FUEL
LEVEL
SENSOR
3E-7765
WH-18
WH-18
WH-18
WH-18
K
K
K
K
202-BK-18
419-YL-18
202-BK-18
D735-PK-18
TRANS SPEED SENSOR
1
A/C CLUTCH
SOLENOID
8T-8813
MOTOR
112-PU-4
C
3
2
4
1
D756-YL-18
432-PK-18
600-BR
FUSE
8M-8948
124-GN-14
150-OR-14
A
S
L5
L5
L5
L42
L42
L42
L42
L42
L31
L31
L31
L18
L18
L18
L12
L12L12
L22
L22
L22
L22
L26
L26 L26
L26
L25
L25
L25
L24
L24
L17
L17
ACTION ALARM
3E-6328
CIGAR LIGHTER
9W-0335
L23
L23
L23
L23
L27
519-PK
L27
L27
L28
L28
600-BR
124-GN-14
202-BK-18
L8
201-BK-18
VCTC INDICATOR
LAMP
7N-5876
ACTION LAMP
7N-5876
L TURN INDICATOR
202-BK-18
D727-YL-18
502-OR
L8
L30
L30
L30
L30
200-BK
FOR CB
RADIO
512-GN-18
511-BR-18
509-WH-18
508-PU-18
L30
L9
RD
A513-PK-18
150-OR-14
200-BK-14
976-OR
L20
200-BK-14
118-GY
118-GY
RH SPEAKER
6T-7695
LH SPEAKER
6T-7695
BK
615-YL-14
REAR WIPER
3E-6388
WASH
200-BK-14
637-GN-14
HYD OIL TEMP PWM
201-BK-18
PARK
LOW
L20
202-BK-18
HIGH
UNUSED (SW 1)
GROUND
1
2
L20
200-BK
UNUSED (SW 2)
GROUND
CLEAR
200-BK
L20
L21
L21
L21
L21
322-GY
410-WH-18
L14
411-PK-18
L14
L14
L13
B
A
WASHER B+
S
A513-PK-18
SERVICE METER
6T-7337
3
944-OR-18
S
S
426-BR-18
403-GN
504-YL
644-OR-18
113-OR-18
S
118-GY
503-BR
945-BR-18
505-BU
2
403-GN
FRONT ROPS
FLOOD LAMP
9X-6774
272-BK-18
112-PU-4
271-BK-18
112-PU-14
270-BK-18
112-PU-14
112-PU-14
112-PU-14
4
442-GY-18
1
443-YL-18
202-BK-18
112-PU-14
T
G
G
G
G
G
G
+ BATTERY
GROUND
SOLENOID
OR
BK
BU
SOLENOID
GROUND
+ BATTERY
BK
OR
BU
G
G
G
S
S
S
S
S
S
S
B
Q
S
S
PP
BK-18
281-BK-18
S
D733-BR-18
441-OR-18
E
HEAD LAMP
9X-7166
200-BK
447-PK-18
WIPER B+
SWITCH SHOWN
WITH STEERING
AND TRANSMISSION
ENABLED
7
1
2
432-PK-18
A401-YL-18
417-GY-18
290-BK-18
291-BK-18
17
L37
L37
L14
Z
L4
WH
PU
BU
18
15
16
39
22
34
38
S
TO FRAME
S
615-YL-14
35
S
NOTE: SWITCH SHOWN WITH
OVERRIDE OFF
L18
L18
L18
L18
L18
L12
L8
LL
LLLL
251-BK-18
129-BU-18
2
NEUTRALIZER OVERRIDE SW
3E-9313
1
251-BK-18
129-BU-18
B
PAYLOAD
MEASUREMENT
SYSTEM
OPERATOR
DISPLAY
3E-8945
251-BK-18
B417-YL-18
B416-WH-18
BK-18
BK-182
1
1
251-BK-18
CUSTOMER DATA CONNECTION
2
BK-18
BK-18
REWEIGH SW
9X-9688
S
FLOOD LAMP
9X-6775
STEERING SW
3E-6429
ENGINE
SPEED
SENSOR
6V-2455
200-BK-14
STORE SW
9X-9688
129-BU-18
4
818-BR-18
E
9U-0785
P
S
164-WH-18
03 A-1
819-GY-18
B
C
PWRTRAIN
SENSOR
3E-5370
C
B
A
GROUND
+B
SIGNAL
OR-18
BK-18
WH-18
A
818-BR-18
D757-OR-18
600-BR
322-GY
607-PK
610-OR
C
C
COOLANT
SENSOR
3E-5370
C
200-BK
A
B
+B
GROUND
SIGNAL
BK-18
OR-18
WH-18
200-BK-14
200-BK-18
1
203-BK
200-BK
202-BK-18
250-BK-18
40
33
PANEL
LAMP
7N-5876
600-BR
PANEL
LAMP
7N-5876
820-BU-18
1
819-GY-18
600-BR
600-BR
B415-PK-18
600-BR
2
10
600-BR
607-PK
615-YL
616-BU-14
616-BU-14
615-YL-14615-YL-14
251-BK-18
201-BK-18
200-BK
200-BK
200-BK-14
B414-OR-18
975-WH-18
865-GY-18
129-BU-18
5
30
200-BK
200-BK
250-BK-18
202-BK-18
118-GY
23
200-BK
976-OR
D759-WH-18
D759-WH-18
D758-PU-18
21
11
REAR WIPER SW
3T-6655
14
202-BK-18
13
20
19
25
D757-OR-18
32
D758-PU-18
201-BK-18
118-GY
113-OR-18
V
113-OR-18
200-BK-14
201-BK-18
201-BK-18
113-OR-18
113-OR-18
112-PU-4
200-BK
200-BK
D757-OR-18
200-BK
200-BK-14
26
27
28
31
32
37
NOTE E
118-GY
+
FRONT INTERMITTENT
WIPER SW
3E-0155
29
D
140-BU-14
129-BU
150-OR-14
124-GN-14
118-GY
200-BK
24
820-BU-18
200-BK
138-GN-18
164-WH-18
403-GN
12
A
A
600-BR
200-BK-14
200-BK-14
200-BK-14
36
864-BR-18
863-BU-18
251-BK-18
BU-18
BK-18
E
D
C
B
A
GY-18
BR-18
GN-18
CLEAR/CHG
NORM/CAL
LCD LATCH
LCD CLOCK
TX LCD OUT
B415-PK-18
GROUND
+ BATTERY
138-WH-18
251-BK-18
863-BU-18
864-BR-18
865-GY-18
B414-PU-18
L8
S
S
S
L17
L17
L10
L5
L5
L5
L5
L5
L9
L9
L4
L4
A
251-BK-18
113-OR-18
201-BK-18
447-PK-18
STD
606-GY
200-BK
129-BU
114-GN
U
P
500-BR
501-GN
502-OR
164-WH-18
AA
616-BU-14
615-YL-14
D735-PK-18
124-GN-14
118-GY
507-WH
506-PU
PARK BK PRESS SW
464-GY-18
V
V
V
419-YL
200-BK-14
A-8
606-GY
STD
605-YL
606-GY
ENGINE SPEED IN
102-BU
519-PK
HARNESS CODE 4
592-BU
202-BK-18
200-BK
506-PU
DD
709-OR-18
600-BR
202-BK-18
L4
592-BU
02
507-WH
DISPLAY BRIGHTNESS
200-BK
450-YL-18
464-GY-18
403-GN
200-BK
HARNESS CODE 3
113-OR-18
200-BK-14
V
4
644-OR-18
201-BK-18
200-BK
200-BK-14
600-BR
3
2
200-BK
200-BK200-BK
338-PK
HARNESS CODE 2
102-BU
200-BK-14
200-BK
A517-OR
A515-BR
A515-BR
L4
140-BU
HARNESS CODE 1
HARNESS CODE 0
PARK BK PRESS SW
273-BK-18
B
200-BK
321-BR-18
200-BK
200-BK
L4
338-PK
L4
T
T
200-BK-14
128-PK
114-GN
976-OR
310-PU
308-YL
112-PU-14
326-PU
UNUSED (SW 7)
COOLANT FLOW SW
307-OR
HI BEAM INDICATOR
A
C
B
-
A
140-BU
200-BK
200-BK
SERVICE
MODE PLUG
600-BR
200-BK
644-OR-18
616-BU-14
4E-6637
200-BK
615-YL-14
200-BK
V
ATCH
129-BU
201-BK-18
V
V
A
128-PK
CMS/CONVERTER
TRANSMISSION CTRL
S
200-BK-14
S
BUCKET POSITIONER SW
3E-7843
LIFT KICKOUT SW
3E-7844
113-OR-18
A
600-BR
26
8
164-WH-18
200-BK
128-PK
761-GY
200-BK
200-BK
762-YL
3
7
105-BR
B-10
326-PU
307-OR
308-YL
128-PK
150-OR-14
124-GN-14BLOWER MTR
SEAT
600-BR
200-BK
200-BK
ST
201-BK-18
ON
OFF
201-BK-18
200-BK-14
B
S
615-YL-14
200-BK-14
291-BK-18
290-BK-18
4
3
2
1
322-GY
200-BK
637-GN-14
A
SYSTEM VOLTAGE
R TURN INDICATOR
A
A
A
A
UNUSED (SW 10)
600-BR
200-BK
D759-WH-18
D758-PU-18
129-BU
NOTE: SHOWN WITH
QUICKSHIFT OFF
C
112-PU-4
2
2
4
6
3
1
F
R
605-YL
1
114-GN
600-BR
976-OR
FORWARD HORN
A
01
Y
KICKOUT/VCTC/SOL/RIDE CONTROL
B
UNUSED (SW 3)
DATA LINK +
TRANS FILTER SW
DATA LINK -
ATCH
Y
610-OR
2
607-PK-14
2
CONV OIL TEMP PWM
2
BK
GY
BR
OR
616-BU
200-BK
B
CONTROL GP
HYDRAULIC HAND
4E-4164
01
T
T
T
T
H
A
V
G
G
1
L
9U-1420
E-11
FRONT
WIPER
3E-6388
600-BR
Y
FLOOD
LAMP SW
3E-7182
S
B
118-GY
7I
-
3314
C
C
C
00
FUSE HOLDER
4K-5122
FUSE
3K-8782
V
ALARM
10A
HOOD FLOOD LAMP
9X-6775
FUEL LEVEL PWM
6I-2091
FLOOR HTR/FLOOD RELAY
114-GN
A
15
502-OR
B
STRAP AS. 7V-9275
FRT ROPS
FLOOD LAMP
9X-6774
200-BK-14
COOLANT TEMP PWM
102-BU
BK OIL PRESS SW
200-BK-14
274-BK-18
102-BU
B
MASTER LAMP
BATTERY +
200-BK
200-BK
ENG OIL PRESS PWM
UNUSED (SW 12)
STD
Y
140-BU-14
500-BR
501-GN
B475-OR-18
B475-OR-18
RD-00
ATCH
STD
ATCH
NOTE
C
-
1
AM/FM
ANTENA
9U-2331
00
105-0505
NN
QQ
S
F-6009U-4430
F-6009U-4429
F-6009U-2334
D-1100105-4728
A-3
X
007I-3312
NN
E-4
X
3
L43
L43
ALT R-TERMINAL
D756-YL-18
15
D758-PU-18
15
15 615-YL
106-WH-14
106-WH-14
464-GY-18
106-WH-14
164-WH
1
6
5
2
4
710-GN-18
201-BK-18
432-PK-18
519-PK
442-GY-18
443-YL-18
441-OR-18
412-BU-18
TO PLATFORM
STRAP AS. 8R-6359
600-BR
B
128-PK
CMS BRIGHTNESS
ADJUSTMENT SW
3E-7183
105-BR
326-PU
307-OR
308-YL
310-PU
102-BU
600-BR
610-OR
3
1
D736-GN-18
105-BR
102-BU
WIPER MOTOR
G
PRIM STEER FLOW SW
2
00
615-YL
102-BU
W
X
QUICKSHIFT SW
3E-8807
G
FLOOD LAMP
RELAY
3T-0376
644-OR-18
A
A
A
3E-8843
GND
B+
P
BK-18 201-BK-18
274-BK-18
273-BK-18
272-BK-18
271-BK-18
270-BK-18
3
1
LL
202-BK-18
MOTOR
T
GN
LL
A517-OR
RESISTOR
RD
OR/GY
OR/BU
BK
OPERATOR STATION
OPERATOR STATION
4
6
1
3
KK
5
2
128-PK
637-GN-14
5
6
600-BR
113-OR-18
4
3
2
1
L4
HARNESS CODE
PLUG AS.
202-BK-18
MOTOR
128-PK
KEY START SW
9G-7641
BKB
C
1
945-BR-18
A
944-OR-18
FLOOR
HEATER
BLOWER
3E-5124
200-BK-14
10A
10A
10A
D736-GN-18
UNUSED (SW 5)
UNUSED (PWM 6)
SERVICE
STEER LEVER LOCK SW
3E-5181
COMPUTERIZED MONITORING SYSTEM (CMS)
3E-7336
9
4
8
3
5
1
6
2
10A
7
10A
10A
201-BK-18
464-GY-18
128-PK
US/METRIC UNITS
338-PK
SWITCH SHOWN
WITH LH BRAKE
PEDAL UP
112-PU-14
600-BR
403-GN
PANEL
POWER POST
9G-8451
112-PU-14
112-PU-4
200-BK
200-BK
S
140-BU
CIGAR LIGHTER
D759-WH-18
447-PK-18
8
607-PK
9
128-PK
V
FORWARD
HORN
7T-0970
BUCKET
FLOAT
SOLENOID
3E-8647
128-PK
LIFT
KICKOUT
SOLENOID
3E-8649
322-GY
113-OR
118-GY
129-BU
610-OR
607-PK
8
32
33
37
CIRCUIT BREAKER
6N-8589
CIRCUIT BREAKER
6N-8589
C-3014E-8247
E-100
112-PU-14
34
164-WH-18
29
35
36
15
A401-YL-18
426-BR-18
417-GY-18
113-OR-18
128-PK
GROUND
GROUND
+24 V BATTERY IN
+24 V SWITCHED IN
102-BU
102-BU
V
113-OR-18
102-BU
A513-PK-18
200-BK
200-BK
A
607-PK
322-GY
322-GY
607-PK
610-OR
+12 V MEMORY OUT
L17
105-0504
+12 V SWITCHED OUT
BUCKET
KICKOUT
SOLENOID
3E-8648
310-PU
Y
Y
Y
Y
Y
Y
200-BK
START AID SW
3T-3453
113-OR-18
310-PU
200-BK
D736-GN-18
202-BK-18
31
6
4
3
1
5
2
RD-18
RD-18
607-PK 607-PK
RD-18
RD-18
RD-18
RD-18
25
28
30
VOLTAGE
CONVERTER
3E-8645
U
GROUND
+V
SIGNAL
GN
GY
YL
E
U
4. TRANSMISSION CONTROL FAULT CODES
607-PK
610-OR
322-GY
761-GY
762-YL
128-PK
E
NOTE J: USE WITH STEERING STIC ONLY.
NOTE K: USE WITH STEERING WHEEL ONLY.
D-6 K00107-1018DDD
MOTOR
POS NEG
ALT.
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.
CMS CIRCUIT.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
PAYLOAD MONITOR CIRCUIT.
ENGINE SHUTDOWN CONTROL CIRCUIT.
START AID CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
TURN SIGNAL CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.
