©
1996 Caterpillar
All Rights Reserved
Printed in U.S.A.
SENR5617-01
October 1996
776C & 777C Trucks
Electrical Systems
776C:
2TK1-UP
777C:
4XJ1-UP
Component Identifiers (CID) List
CID No. Component
Engine Control MID 36
001 Cylinder 1 Injector Solenoid
002 Cylinder 2 Injector Solenoid
003 Cylinder 3 Injector Solenoid
004 Cylinder 4 Injector Solenoid
005 Cylinder 5 Injector Solenoid
006 Cylinder 6 Injector Solenoid
007 Cylinder 7 Injector Solenoid
008 Cylinder 8 Injector Solenoid
009 Cylinder 9 Injector Solenoid
010 Cylinder 10 Injector Solenoid
011 Cylinder 11 Injector Solenoid
012 Cylinder 12 Injector Solenoid
042 Rail Control Valve
091 Throttle Position Sensor
094 Filtered Fuel Pressure
100 Engine Oil Pressure Sensor
101 Crankcase Pressure
110 Coolant Temperature Sensor
161 Timing Calibration
164 Rail Pressure Reading
168 Electrical System Voltage
174 Fuel Temperature
175 Engine Oil Temperature
190 Engine RPM Sensor
248 CAT Data Link
253 Personality Module Mismatch
254 Internal ECM Failure
261 Timing Calibration
262 Analog Sensor Power Supply
263 Digital Sensor Power Supply
264 Shutdown/Decelerator Inputs
266 Crank w/o Injector Inputs
267 Shutdown Inputs
268 Programmed Parameter Fault
273 Turbo Outlet Pressure Calibration
274 Atmospheric Pressure Calibration
275 Turbocharger Pressure (Right)
276 Turbocharger Pressure (Left)
277 Timing Calibration
279 Water Temperature Aftercooler
281 Engine Lamp
284 EMS Engine On
285 EMS Coolant Lamp
286 EMS Oil Lamp
289 Unfiltered Fuel Pressure
291 Engine Fan Valve
298 Invalid Service Brake Switch
336 Engine Control Switch
337 E-Stop Switch
338 Prelubrication Relay
342 Loss Of Sec Engine RPM Signal
363 Ride Control
444 Starting Motor
542 Unfiltered Oil Pressure
544 Engine Fan Speed
545 Ether Inject Control Relay
548 Throttle Lock Lamp
601 Brake Air Pressure Sensor
680 Ride Control Switch
827 Turbocharger Exhaust Temp (Left)
828 Turbocharger Exhaust Temp (Right)
Transmission Control MID 27
168 Electrical System Voltage
190 Engine Speed Sensor
248 CAT Data Link
269 Sensor Supply Voltage
571 Forward Elevator Solenoid
572 Reverse Elevator Solenoid
575 Elevator Level Sensor
627 Secondary Brake Pressure Switch
650 Harness Code
672 Torque Convertor Output
700 Transmission Gear Switch
701 Transmission Output Speed Sensor
702 Shift Lever Switch
704 Service Brake Pressure Switch
Automatic Retarder Control MID 83
091 Throttle Position Sensor
168 Electrical System Voltage
190 Engine RPM Sensor
248 CAT Data Link
627 Parking Brake Switch
650 Harness Code
700 Actual Gear Switch
702 Shift Lever Switch
710 ARC Supply Solenoid
711 ARC Control Solenoid
712 Retarder Lamp
713 ARC On/Off Switch
714 Auto Retarder Pressure Switch
715 Retarder Pressure Switch
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Air Dryer A-8 7 Solenoid - Air Start B-6 11
Alarm - Backup A-15 1 Solenoid - Cylinder Head (1-8) C-1, C-2 33
Alarm - EMS Action C-2 2 Solenoid - Downshift A-13 29
Alarm - Engine Overspeed D-1 B Solenoid - Fan Clutch B-5 14
Alternator A-5 3 Solenoid - Four Way A-14 28
Aux Start Receptacle A-5 12 Solenoid - Lockup A-13 28
Battery A-7 4 Solenoid-Proportional A-14 31
Breaker C-6,D-6, B Solenoid - Shutter B-9 32
Breaker C-5,D-5 B Solenoid - Start Aid A-5 6
Control - Auto Retarder (ARC) D-13 D Solenoid - Upshift A-14 29
Control - Engine A-3 5 Speedometer F-2 B
Control-EPTC-ll XMSN D-13 D Starter A-5 10
Control - Neutral Start F-15 D Starter A-6 10
Control - Payload Monitor C-14 D Switch - A/C Pressure B-7 32
Control - Start Aid A-4 6 Switch - AETA/EMS Test D-3 A
Control - Supplemental Steering E-1 E Switch - At tercooler Temp B-3 34
Control - Traction Aid D-15 D Switch - ARC On/Off D-2 B
Engine Speed Pickup B-5 17 Switch - Auto Retard Pressure D-12 D
Flasher E-5 B Switch - Backup Alarm D-11 F
Fuse D-6, D-7 B Switch - Blower E-11 A
Gauge - Air Pressure D-3 B Switch - Body Raise C-12 C
Gauge - Brake Oil Temp F-2 B Switch - Brake A-9 40
Gauge - Coolant Temp F-3 B Switch - Brake Air C-15 D
Lamp - Dome C-4 A Switch - Brake Master Cylinder Overstroke A-10 39
Lamp - Engine Action F-1 B Switch - Brake Oil Diverter Temp A-9 35
Lamp - Engine Air Filter F-1 B Switch - Brake Retract D-3 B
Lamp - Engine Overspeed Action E-2 B Switch - Coolant Flow A-2 36
Lamp - Master Action F-1 B Switch - Coolant Temp A-9 14
Lamp - Payload Monitor (Green) A-4 44 Switch - Diag Enable/Throttle Override C-4 2
Lamp - Payload Monitor (Green) F-1 45 Switch - Disconnect A-6 C
Lamp - Payload Monitor (Red) A-4 44 Switch - Door Courtesy Lamp C-4 A
Lamp - Payload Monitor (Red) F-1 45 Switch - A/C Clutch A-4 27
Lamp - Retard F-1 B Switch - EIev Low Idle Enable C-4 2
Lamp - Retarder D-12 B Switch - Fan Clutch A/C Pressure B-7 14
Lamp - Supp Steering E-2 B Switch - Fuel Filter A-3 37
Module - Stop/Tail Lamp B-14 8 Switch - Ground Level Shutdown B-2 38
Motor (Blower) E-10 A Switch - Head Lamp Dimmer D-4 A
Motor - Brake Retract A-11 9 Switch - Key Start E-3 B
Motor - Steering A-7 11 Switch - Parking Brake C-15 D
Operator Monitor D-1 B Switch - Refrigerant B-6 27
Payload Monitor Operator Display C-7 B Switch - Retarder Brake F-15 D
Relay - Brake Retract C-6 E Switch - Running Lamp E-3 B
Relay - Main Power D-6 E Switch - Secondary Brake F-15 D
Relay - Start A-6 13 Switch - Service Brake E-15 0
Relay - Start B-5 13 Switch - Service Clear E-12 C
Relay - Steering Motor A-7 30 Switch - Service Clear E-14 C
Resistor (Blower) E-10 A Switch - Service Set E-12 C
Resistor (Starter) A-5 10 Switch - Service Set E-14 C
Resistor (Starter) A-6 10 Switch - Shift Lever D-11 E
Sender - Coolant Temp A-2 14 Switch - Start Aid A-5 14
Sender - Wheel Speed A-15 25 Switch - Start Aid D-3 B
Sender - Wheel Speed B-15 26 Switch - Stop Lamp F-15 D
Sender - XMSN Speed A-13 15 Switch - Supp Steer E-3 B
Sensor - Atmospheric Pressure B-2 D Switch - Torque Converter Temp A-3 41
Sensor - Engine Coolant Temp C-3 14 Switch - Transmission A-13 42
Sensor - Engine Oil Pressure C-3 16 Switch - Turn D-5 A
Sensor - Engine Speed/Timing C-3 18 Switch - XMSN Filter A-9 43
Sensor - Strut (Left Front) B-4 19 Switch - XMSN Oil A-9 43
Sensor - Strut (Left Rear) B-14 20 Tachograph F-12 B
Sensor - Strut (Right Front) A-4 21 Tachometer F-3 B
Sensor - Strut (Right Rear) A-14 22 Thermostat E-1 A
Sensor - Throttle Position C-6 A Transmission Gear Indicator D-10 B
Sensor - Turbo Inlet Pressure C-3 23 Valve - ARC Control E-12 D
Sensor - Turbo Outlet Pressure C-3 24 Valve - ARC Supply D-12 D
Service Meter E-13 C XMSN Speed Distributor E-15 D
Machine locations are repeated for components located close together.
A = Operator compartment
B = Operator compartment - Dash
C = Operator compartment - Behind Operator’s Seat
D = Rear Compartment
E = Front Compartment
F = Transmission Shift Console
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 F-15 46
CONN 2 C-15 47
CONN 3 D-15 D
CONN 4 B-14 48
CONN 5 E-14 D
CONN 6 A-13 49
CONN 7 C-13 47
CONN 8 C-12 47
CONN 9 C-12 D
CONN 10 D-12 D
CONN 11 D-12 D
CONN 12 C-11 47
CONN 13 Diagnostic Connector D-12 C
CONN 14 C-10 19
CONN 15 C-10 D
CONN 16 D-10 33
CONN 17 E-10 D
CONN 18 C-9 47
CONN 19 C-9 D
CONN 20 Engine Service C-9 D
CONN 21 D-9 D
CONN 22 E-9 D
CONN 23 E-8 D
CONN 24 E-8 D
CONN 25 C-8 47
CONN 26 C-8 47
CONN 27 E-8 50
CONN 28 A-6 51
CONN 29 B-6 51
CONN 30 E-6 D
CONN 31 C-5 D
CONN 32 E-5 E
CONN 33 E-5 E
CONN 34 D-4 E
CONN 35 D-4 D
CONN 36 E-3 50
CONN 37 E-3 50
CONN 38 F-3 50
The connectors shown in this chart are for harness to harness connectors.
Connectors that join a harness to a component are generally located at or near the
component. See the Component Location Chart.
Flash
Code
Component
Identifier ¹
Failure
Mode
Identifier ²
12 267 02
16 282 05
16 282 06
16 283 05
16 283 06
16 281 05
16 281 06
17 168 00
17 168 01
18 284 05
18 284 06
18 285 05
18 285 06
18 286 05
18 286 06
21 262 03
21 262 04
21 263 03
21 263 04
24 100 03
24 100 04
25 273 03
25 273 04
26 274 03
26 274 04
27 110 03
27 100 04
29 275 03
29 275 04
32 091 08
34 190 02
42 100 13
42 275 13
42 273 13
42 274 13
42 261 13
52 253 02
54 248 09
55 - -
56 268 02
71 001 05
71 001 06
72 002 05
72 002 06
73 003 05
73 003 06
Flash Code Conversion
¹ See Component Identifier List
² See Failure Mode Identifier List
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
Actual Gear Indicator SENR4252
Arc Control SENR5683
Alternator 9X-7803 SENR7508
Automatic Electronic Traction Aid SENR2986
Electronic Monitoring System SENR2945
Electronic Neutral Start Control SENR3889
EPTC-ll Transmission Control SENR9122
Engine Control SENR1037
Payload Monitor SENR4733
Starting And Charging Systems SENR2947
Starting Motor 1W-6363 SENR3860
Traction Aid Control SENR2986
Title
Off Machine Switch Specification
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
3E-2033 Secondary Brake Air Pressure (Trans)
640 kPa
(92.0 psi)
530 ± 40 kPa
(77.0 ± 6.0 psi)
Normally Open
3E-2034
Service Brake Air Pressure (Tractn)
Service Brake Air Pressure (Trans)
80 kPa
(12.0 psi)
55 ± 20 kPa
(8.0 ± 3.0 psi)
Normally Closed
3E-2035 Brake Retarder Air Pressure
60 kPa
(8.5 psi)
28 ± 15 kPa
(4.0 ± 2.0 psi)
Normally Open
3E-6449 Brake Oil Diverter
38 ± 3°C
(100 ± 5°F)
27°C MIN
(80.6°F)
Normally Closed
3E-7298 Start Aid Temperature
21.0 ± 3.0°C
(69.8 ± 5.4°F)
13.0 °C
(55.4 °F)
Normally Closed
3E-7504 Torque Converter Temp
107 ± 3°C
(225 ± 5°F)
98°C MIN
(208.4°F MIN)
Normally Open
3E-7868 Transmission Filter Bypass Press (EMS)
210 ± 70 kPa
(30 ± 10 psi)
-
-
Normally Open
7N-7848 At tercooler Temperature
82.2 ± 2.8°C
(180.0 ± 5.0°F)
74.0°C MIN
(165.0°F MIN)
Normally Open
7N-7849 Aftercooler (Temperature)
88.0 ± 2.8°C
(190.0 ± 5.0°F)
79°C MIN
(174°F MIN)
Normally Closed
7N-7854
Brake Oil Temp (EMS)
Converter/Retarder Temp (EMS)
123.9 ± 2.8°C
(255 ± 9°F)
112.8°C MIN
(235°F MIN)
Normally Closed
7V-5647 Brake Master Cylinder Overstroke
12.23 ± 5.56 N
(2.75 ± 1.25 Ib)
-
-
Normally Closed
7X-2013 A/C Press (Shutter/Compressor)
1862 to 2275 kPa¹
(270 to 330 psi)
552 to 827 kPa ²
(80 to 120 psi)
Normally Open
7X-5988 Engine Coolant Temp (Start Aid)
21.1 ± 2.8°C
(69.8 ± 5°F)
12.8°C MIN
(55°F MIN)
Normally Closed
8T-8639 Refrigerant Pressure (A/C)
344.5 ± 34.5 kPa
(50±5psi)
172.3 ± 21 kPa
(25 ± 3 psi)
Normally Open
8T-9792 Air Pressure
517 ± 35 kPa
(75.0 ± 5.0 psi)
448 ± 35 kPa
(65.0 ± 5.0 psi)
-
-
9G-3341 Power Train Oil Temperature (EMS)
51.7 ± 2.8°C
(125 ± 5°F)
43.0°C MIN
(110°F MIN)
Normally Closed
9W-0263 Auto Retarder Press
48.2 ± 13.8 kPa
(7.0 ± 2.0 psi)
24.1 kPa MIN
(3.5 psi MIN)
Normally Closed
9X-7088 Coolant Flow
.362 ± .029 N
(.08 ± .01 Ib)
.303 N MIN
(.07 lb MIN)
Normally Open
101-0912 AC Pressure (Fan Clutch)
1600 ± 135 kPa
(230 ± 20 psi)
1275 ± 100 kPa
(185 ± 15 psi)
Normally Open
109-4215 Steering Flow
4 grams
(.14 oz)
1.5 grams
(.05 oz)
Normally Open
116-9933 Fuel Filter Press (VIMS)
138 ± 14 kPa
(20.0 ± 2.0 psi)
83 kPa MIN
(12.0 psi MIN)
Normally Closed
¹ A hysteresis band exists: with increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed
condition can be maintained down to 170 kpa (25psi).
² Contact postion at the contacts of the harness connector.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Control Circuits
101 RD Bat (+) 700 PK AETA Test Sw
102 BU Hd Lmp 703 BU XMSN Up Sol
103 YL Aux Ckt 704 GY XMSN Down Sol
105 BR Key Sw 705 PK XMSN Lockup Clutch Sol Basic
107 WH Eng Shut - Down Fire Suppr 706 BR XMSN Retarder Sw
109 OR Alt Output (+) Term. 707 PU XMSN Bed Raise Sw
112 PU Main Power Rly Output 709 OR Sensor Power Supply
113 OR Opr Mon Panel VMIS B+ Switched 710 GN XMSN Speed Pickup Signal
121 YL Bckp Alarm to Lamp 711 BR XMSN Lever Code 1
122 BU Aux Ckt 712 WH XMSN Lever Code 2
123 WH Aux Ckt 713 OR XMSN Lever Code 3
124 GN A/C 714 YL XMSN Lever Code 4
126 PK XMSN Ctrl 715 GN XMSN Lever Code 5
132 PK AETA Ctrl 716 BU XMSN Lever Code 6
136 GN Suppl Ster 720 PU XMSN Brake Sw
137 OR Suppl Ster Motor Fuse 721 BR XMSN Gear Code 1
138 GN Auto Lube Pump to Payload Mon 722 WH XMSN Gear Code 2
139 OR Aux Ckt 723 OR XMSN Gear Code 3
150 OR Bat (+) 724 YL XMSN Gear Code 4
173 YL Aux Ckt 725 GN XMSN Gear Code 5
176 OR Aux Ckt 726 BU XMSN Gear Code 6
192 GN Suppl Ster Bke to Rly 727 GN Suppl Ster Motor Relay
Ground Circuits
728 BU Suppl Ster Cont Sw
200 BK Main Chassis 733 BR Switching Gear Code 1 Front
201 BK Opr Mon Panel VMIS CMS 734 WH Switching Gear Code 2 Front
202 BK XMSN Ctrl 735 OR Switching Gear Code 3 Front
203 BK Chassis Diagnostic 736 YL Switching Gear Code 4 Front
207 BK Starter Diagnostic 737 GN Switching Gear Code 5 Front
212 BK AETA Coding Pin 16 767 WH AETA Pickup Power
213 BK AETA Coding Pin 17 768 OR AETA Pickup XMSN
215 BK AETA Coding Pin 19 769 BU Wheel Speed Pickup Left
216 BK AETA Coding Pin 20 770 GN Wheel Speed Pickup Right
217 BK XMSN ID Code 2 772 BR AETA Retarder Sw
218 BK XMSN ID Code 1 773 GY AETA Servovalve
219 BK XMSN ID Code 0 774 YL AETA Sol - Left
227 BK XMSN ID Code 3 775 BR AETA Sol - Right
229 BK Bat (-) 777 PU Brake Release Motor
231 BK XMSN Sw 794 YL Payload Mon XMSN Speed
250 BK Payload Mon - Customer Gnd 799 WH Sensor Power
251 BK Payload Mon - System Gnd A700 OR Digital Sensor Power(+8V)
280 BK XMSN Ctrl Ident Code 4 A701 GY Injector #1
A215 BK Auto Retarder Ctrl Harness Code 0 A702 PU Injector #2
A216 BK Auto Retarder Ctrl Harness Code 1 A703 BR Injector #3
A217 BK Auto Retarder Ctrl Harness Code 2 A704 GN Injector #4
A218 BK Auto Retarder Ctrl Harness Code 3 A705 BU Injector #5
A231 BK Auto Retard Ctrl Harness Code 4 A706 GY Injector #6
Basic Machine Circuits
A707 PU Injector #7
301 BU Starter No. 1 Sol A708 BR Injector #8
302 OR Starter No. 1 Resistor to Diagnostic A721 WH Injector Common #1
304 WH Starter Rly No. 1 Output A722 YL Injector Common #2
306 GN Starter Rly Coil to Neut Start Sw or Key Sw A723 OR Injector Common #3
307 OR Key Sw to Neut Start Sw or VMIS Sensor Module A724 WH Injector Common #4
308 YL Main Power Rly Coil A725 YL Injector Common #5
310 PU Start Aid Sw to Start Aid Sol A726 OR Injector Common #6
312 PK Starter No. 2 Sol to Resistor A727 PK Injector Common #7
311 WH Start Aid Sol to Temp Sw A728 WH Injector Common #8
313 GY Starter No. 2 Resistor to Diagnostic A746 PK Turbo Outlet Pressure
314 PU Starter Rly No. 2 Output A747 GY Atmospheric Pressure
321 BR Bckp Alarm Lamp Travel Alarm A748 GY EUI Timing Wheel Cal
360 GN Engine Shutdown Signal C B770 YL (NFND) Fan Control Solenoid Positive
361 OR Engine Shutdown Signal B771 BR (NFND) Fan Control Solenoid Return
Monitoring Circuits D785 GN
(NFND) Vehicle Speed - (In or Out)/TDC Service
Probe (-)
403 GN Alternator (R) Term. D786 BR (NFND) Engine Retarder Sol Cyl 1, 2, 5, 6
405 GY Opr Mon Oil Press. (Lo Setting) F721 GY Sw 9/4
406 PU Opr Mon Coolant Temp 818 BR Serial Data (Transmit)
407 PK Opr Mon Converter/Retarder Oil Temp 819 GY Serial Date (Receive)
408 WH Opr Mon System Air Press. 820 BU Transmit Key
409 OR Opr Mon Neut 858 GY Payload Mon Right Front Sensor
410 WH Opr Mon Fault Alarm 859 YL Payload Mon Left Front Sensor
411 PK Opr Mon Master Fault Lamp 860 PK Payload Mon Right Rear Sensor
412 BU Opr Mon Cool Flow 861 PU Payload Mon Left Rear Sensor
413 BR Opr Mon Fuel Press. 863 BU Payload Mon Transmit LCD Out
415 GN Opr Mon Test Sw 864 BR Payload Mon Clock LCD Out
417 GY Primary Ster Sw 865 GY Payload Mon Latch LCD Out
419 YL Opr Mon Parking Brake 866 PK Payload Mon Test/Set
426 BR Opr Mon Power Train Oil Filter 867 PU Payload Mon Mode
430 BU Opr Mon Air Filter 891 BU Neut Start Cont to Payload Mon System
437 BR Opr Mon Fuel Level to Fuel Filter Jumper 892 BR VMIS Start Mod Right (-) Port/CAT Data Link (-)
438 YL Opr Mon Coolant Temp Jumper 893 GN VMIS Start Mod Right (+) Port/CAT DATA Link (+)
441 OR Eng Coolant Temp Gauge 913 BU Shutter Cont Temp Sw To Press. Sw
441 OR Eng Coolant Temp Gauge 914 YL Press. Sw to Shutter Cont Sol
446 PU Brake Oil Temp Gauge 930 BR Brake Retract Sw to Relay Coil
449 BU Spdom Sender (Signal NO. 1) 958 YL Relay Logic
450 YL Tach Sender (+) 993 BR Analog Sensor Common
454 GN Retarder Indicator Lamp 994 GY Oil Pressure (Filtered)
462 YL Suppl Ster Motor Indicator 995 BU Coolant Temperature
470 PU Cane Sw Neut 996 GN Engine Speed/Timing Sensor Power
472 OR Parking Brake Sw to Overstroke Sw 997 OR Analog Sensor Power (+ 5V)
481 GN Converter Temp Sw to Brake Oil Temp Sw 998 BR Digital Sensor Return
A430 OR EUI Cont Action Output 999 WH Primary Camshaft Speed/Timing
Accessory Circuits
A980 GY Service Meter B+ to Eng Oil Press. Sw
513 OR A/C Compressor/Refrigerant Press. Sw A983 BU Eng Throttle Cont - Signal
515 GY Blower Motor (Hi) B926 GY (NFND) Start Aid Timer Output
516 GN Blower Motor (Medium) B948 BR (NFND) Eng Overspeed Cont to Indicator Lamp
517 BU Blower Motor (Lo) B948 BR (NFND) Eng Overspeed Cont to Indicator Lamp
521 YL A/C Sw to Refrigerant Sw B994 GN (NFND) A/C Clutch Sol to Shutter Cont Press. Sw
522 WH A/C Clutch to Thermostat Sw C915 GY ADEM Diagnostic Codes
537 GN Turn Signal Sw to Flasher C940 GN EUI Throttle Bypass - Lo
539 BU Turn Signal Indicator Basic/Right C972 YL Elevated Low Idle Enable Sw
540 WH Turn Signal Indicator Left D982 PK (NFND) EUI Timing Calib
A510 OR A/C Pressure Cut Out Sw Signal 1 D985 BR (NFND) Auto Retard On Sw:
Lighting Circuits
D986 PK (NFND) Auto Retard Off Sw:
602 WH Dome Lamp D987 GY (NFND) Auto Retard Accelerator Sw
604 OR Stop Lamp D988 WH (NFND) Auto Retard Air Cont Valve
605 YL Turn Lamp - Left D989 BU (NFND) Auto Retard Air Supply Valve
606 GY Turn Lamp - Right D991 OR (NFND) Auto Retard Pressure Sw
610 OR Head Lamp Basic D992 PU (NFND) Auto Retard Manual Retarder Sw
611 PU Head Lamp Hi D993 YL (NFND) Auto Retard Service Reset
614 PU Park/Tail/Dash Lamp D994 BU (NFND) Auto Retard Service Clear
619 GN Head Lamp Lo D996 PU (NFND) XMSN Cont Service Set
635 BU Payload Mon Red Lamp D997 YL (NFND) XMSN Cont Service Clear
636 GN Payload Mon Green Lamp L918 GN Brake Oil Diverter Temp Sw to Solenoid
639 WH Left Hand Stop/Tail Lamp
640 GN Right Hand Stop/Tail Lamp
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
28
29
30
31
32
37
35
33
34
36
38
7
F
39
40
41
42
43
44
45
46
47
48
49
50
51
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
27
28
29
30
31
32
37
35
33
34
36
38
7
F
39
40
41
42
43
44
45
46
47
48
49
50
51
A AA
1
2
325-PK-14
200-BK-14
T
This indicates that the component does not have a wire connected to ground. It is
grounded by being fastened to the machine.
This indicates that the component has a wire connected to it that is connected to ground.
105-9344
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
The circle indicates that the component has screw terminals and a wire can be disconnected from it.
Pin
Socket
Fuse
Component
Part Number
Pin or Socket
Number
Receptacle
Plug
Wire Gauge
Wire, Cable, or Harness
Assembly Identification
Wire Color
Normally closed switch that will open with an increase of a specific condition.
No circle indicates that the wire cannot be disconnected from the component.
Single Wire
Connector
Circuit Number
Identification
Ground
Connection
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
Circuit Breaker
Symbol
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.
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 Symbols
Electrical Schematic Symbols And Definitions
1
1
2
2
Typical representation of a Sure-Seal
connector. The plug and receptacle
contain both pins and sockets.
Typical representation of a Deutsch
connector. The plug contains all
sockets and the receptacle contains
all pins.
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
9G-1950 Resistor - Blower Motor Speed
Overall 2.0 ± .1;
Tap 1.0 ± .05
6T-2217 Resistor - Starter/Diagnostic Conn 150 ± 7.5
9X-9584 Resistor - Start Aid 20.0 ± 0.2
5T-4434 Solenoid - Air Start 42.0 ± 4.0
7X-1120
Solenoid - Downshift
Upshift
Lockup
33.7
9G-9988 Solenoid - Four Way 24.9
9X-7137 Solenoid - Start Aid 3.3 ± 1
3T-0062 Solenoid - Proportional 16.0
9X-9482 Solenoid - Shutter 68
101-0329 Solenoid - Engine Fan Clutch 62.0 ± 6.2
9X-7876 (from 3E-8691) Solenoids - ARC Control Valve, ARC Supply Valve 31 ±3
101-3430 Solenoid - Brake Oil Diverter 31.1 ±2.4
9X-7137 Solenoid - Start Aid 3.3 ± 1
3E-7279 Relay - Brake Retract 27.5 ± 2.6
3T-0376 Relay - Main Power 25.5 ± 2.5
3E-256 Relay - StartAt room temperature. 20.4 ± 1
¹ At room temperature unless otherwise noted.
1
1
D70532
Machine Harness Connector and Component Locations
1315
14
F
E
D
13
14
15
C
B
A
10
11
12
12
11
10 9 8 7
9 8 7
6 5 4
6 5 4
3 2
1
F
E
D
3 2
1
C
B
A
105-BR
200-BK
200-BK
L6
121-YL
122-BU
150-OR-14
A
B
D786-PK
D785-BR
176-OR
893-GN
892-BR
5
4
1
2
ARC
4
5
2
103-YL
105-BR
103-YL
430-BU
3
A430-OR
L5
L5 L5
126-PK
123-WH
103-YL-14
614-PU
201-BK
201-BK
103-YL-14
619-GN-14
539-BU
540-WH
105-BR
105-BR
101-RD-10
103-YL-14 103-YL-14
Q
Q
Q
Q
Q
L64
L18
614-PU
614-PU
201-BK
Q Q Q Q Q Q
Q
Q
QQ
QQQ
A
A
893-GN
150-OR-14
430-BU
604-OR
112-PU-14
126-PK
410-WH
124-GN-14
200-BK
123-WH
123-WH
727-GN
307-OR
308-YL
200-BK
201-BK
411-PK
614-PU
614-PU
L58
L57
107-WH-14
A430-OR
NOT
USED
998-BR
B948-BR
7
L59
L11
8
L17
539-BU
L63
L5
L63
L5
L42
L62
L47
614-PU
123-WH
L42
L12
L4
W
W
W
Q
173-YL
TURN LAMP
BREAKER
6N-8589
A
A
A
A
A
Q
A
Q
A
310-PU
462-YL
103-YL-14
767-WH
700-PK
454-GN
614-PU
605-YL
606-GY
L5
109-OR
173-YL
123-WH
L10
998-BR
610-OR-14
611-PU-14
611-PU-14
HEAD LAMP
DIMMER SW
2H-1855
539-BU
540-WH
614-PU
610-OR-14
611-PU-14
2
4
1
5
3
540-WH
122-BU
121-YL
126-PK
132-PK
136-GN
138-GN
113-OR
L12
L57
A
L57
200-BK
M
A
T
103-YL-14
L57
173-YL
139-OR
777-PU-10
101-RD-4
109-OR-4
BRAKE RETRACT
2
1
3
4
892-BR
5
112-PU-12 10A
139-OR
138-GN
123-WH
121-YL
410-WH
201-BK
FLASHER
8D-6946
611-PU-14
L17
L16
15A
101-RD-10
9
7
3
1
6
176-OR
176-OR
WW
L58
537-GN
41
540-WH
539-BU
605-YL
606-GY
3
2
6
5
4
1
Q
Q
Q
Q
QQ
AA
AS
3
2
6
5
TURN SW
9G-5589
537-GN
MAIN POWER
RELAY
3T-0376
ENGINE
CONTROL
BREAKER
6N-8589
KEY
BREAKER
9G-9487
103-YL-14
112-PU-12
200-BK
308-YL
6
L59
112-PU
112-PU-14
112-PU-14
109-OR-6
112-PU-10
150-OR-14
10A
15A
SUPPLEMENTAL
STEERING
9G-9487
122-BU
126-PK
132-PK
138-GN
113-OR
123-WH
AIR DRYER
XMSN CONTROL
TRACTION AID
PAY MON
OPER MON
GAGES
BACKUP ALARM
10A
10A
15A
112-PU-12
112-PU-12
112-PU-12
10A
10A
10A
112-PU-12
112-PU-12
112-PU-12
112-PU-14
103-YL-14
136-GN
124-GN-14
102-BU-14
132-PK
150-OR-14
122-BU
121-YL
112-PU-12
10A
126-PK
15A
AIR CONDITIONER
BREAKER
6N-8589
FUSES
3K-8782 - 10A
8M-8948 - 15A
FUSE HOLDERS
4K-5122
102-BU-14
124-GN-14
105-BR
101-RD-10
HEAD LAMP
BREAKER
3T-2662
105-BR
105-BR
Q
539-BU
540-WH
L63
L63
L63
L5
2
1
9
5
4
3
8
15A
105-BR
113-OR
CONN32
CONN30
CONN33
CONN34
CONN35
CONN36
CONN37
CONN38
10
6
3
2
9
1
7
5
4
8
3
2
D985-BR
D986-PK
PANEL
LAMP
110-2079
PANEL
LAMP
110-2079
PANEL
LAMP
110-2079
L8
G
G
998-BR
430-BU
998-BR
ENGINE AIR
FILTER
LAMP
107-1983
998-BR
G
F
GROUND
GROUND
200-BK
614-PU
200-BK
P
L7
L12
L18
L18
L13
L13
L8
200-BK
614-PU
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
G
G
G
G
G
G
G
9
5
F
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
B948-BR
A430-OR
3
10
6
7
200-BK
200-BK
200-BK
430-BU
LAMP
107-1983
998-BR
6
G
L4
L7
L13
L7
L54
L54
A430-OR
L54
L8
L11
L10
L10
L11
619-GN-14
103-YL-14
102-BU-14
998-BR
FUEL FILTER
G
449-BU
123-WH
614-PU
F
IGN
SEND
GRD
IGN
SEND
GRD
200-BK
SIG
+
-
LAMP
8D-1429
200-BK
614-PU
LAMP
8D-1429
SPEEDOMETER
3T-3408
IGN
SEND
GRD
430-BU
200-BK
998-BR
G
START
AID SW
9X-5713
12
F
200-BK
6
3
2
1
5
SYSTEM
ELECTRONIC
MONITORING
8C-3508
COOL TEMP
767-WH
700-PK
930-BR
139-OR
619-GN-14
102-BU-14
103-YL-14
614-PU
9
ENG OIL PR
SUPPL STEER
BRAKE ON
1
5
8
2
3
GROUND
+ BATTERY
11
LAMP
610-OR-14
610-OR-14
2
767-WH
700-PK
XMSN FILTER
200-BK
CV/RTD TEMP
F
307-OR
308-YL 310-PU
1
3
136-GN
ALTERNATOR
L12
419-YL
201-BK
417-GY
201-BK
415-GN
437-BR
413-BR
COOL FLOW
412-BU
411-PK
410-WH
409-OR
408-WH
1
407-PK
406-PU
13
405-GY
426-BR
403-GN
201-BK
113-OR
3
6
FUEL PR
BK AIR PR
614-PU
NEUTRAL
614-PU
ALARM
614-PU
614-PU
614-PU
PANEL
LAMP
110-2079
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
200-BK
614-PU
9
7
10
2
2
8
614-PU
RUNNING
LAMP SW
6T-3989
462-YL
ENG OVRSPD
ACTION LAMP
107-1983
7
727-GN
307-OR
308-YL
123-WH
998-BR
123-WH
STEER SW
6T-3990
G
19
16
4
5
12
14
G
18
17
15
611-PU
105-BR
614-PU
614-PU
614-PU
200-BK
539-BU
201-BK
539-BU
411-PK
201-BK
200-BK
611-PU
411-PK
123-WH
308-YL
454-GN
611-PU
200-BK
A
540-WH
20
454-GN
11
307-OR
LEFT TURN
LAMP
107-1983
3
TEST
727-GN
123-WH
540-WH
614-PU
4
462-YL
200-BK
310-PU
1
G
8
G
G
D986-PK
308-YL
307-OR
P
454-GN
411-PK
201-BK
540-WH
539-BU
P
ARC
ON/OFF SW
6T-3991
NOTE E
D985-BR
200-BK
614-PU
614-PU
BRAKE OIL
TEMP GAGE
4W-2067
TACHOMETER
8C-5471
COOLANT
TEMP GAGE
4W-0483
B948-BR
200-BK
998-BR
415-GN
614-PU
B948-BR
449-BU
200-BK
103-YL-14
200-BK
614-PU
6 5
9
8
930-BR
139-OR
449-BU
BRAKE
RETRACT SW
6T-6066
200-BK
450-YL
450-YL
200-BK
200-BK
LAMP
5D-0019
123-WH
LAMP
5D-0019
123-WH 123-WH
123-WH
446-PU
441-OR
998-BR
441-0R
200-BK
B948-BR
102-BU-14
123-WH
RIGHT TURN
LAMP
107-1983
LAMP
107-1983
HIGH BEAM
INDICATOR
LAMP
110-2079
RETARD LAMP
107-1983
123-WH
LAMP
7N-5876
AIR PRESS
GAGE
1W-3306
200-BK
614-PU
NNN
PAYLOAD
MONITOR
GREEN
LAMP
8T-9684
BULB
8T-9749
PAYLOAD
MONITOR
RED
LAMP
8T-9683
BULB
8T-9749
RD
RD
BK
BK
1
1
2
2636-GN
799-WH
799-WH
635-BU
NNN
4
G
GA
ENGINE OVERSPEED
ALARM 9G-9813
B
1
2
RD
BK
STEERING
107-1983
AETA/EMS
TEST SW
3E-3744
NOTE D
2
3
1
GY-18
GN-18
WH-18
RD-18
PK-18
BK-18
PU-18
BU-18
YL-18
OR-18
BR-18
OPR PANEL
KEY SW
STER SW
GROUND
GROUND
+ BATTERY
ALTERNATOR
MAG SW
2
1
9
8
7
6
5
4
3
2
1
P
P
STEERING CONT
3E-5184
OPERATOR STATION
308-YL
728-BU
200-BK
403-GN
727-GN
417-GY
200-BK
446-PU
105-BR
KEY
START SW
9G-7641
A
200-BK
ST
L12
4
L8
L8
L11
2
ON
OFF
B
G
415-GN
S
G
C
R
ENGINE ACTION
MASTER ACTION
SECONDARY
SECONDARY
SECONDARY
202-BK
103-YL
A
A
200-BK
A
200-BK
STOPLAMP
RELAY
3E-5239
85
958-YL
103-YL
103-YL-14
L
450-YL
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
UNUSED
L60
L60
L60
UNUSED
D987-GY
UUU
UUU
D993-YL
AUTO RETARDER CONT
3E-3663
321-BR
202-BK
202-BK
10
9
8
7
6
5
4
3
2
1
176-OR
892-BR
893-GN
D994-BU
D992-PU
D991-OR
454-GN
405-GY
D989-BU
D988-WH
A231-BK
A216-BK
A217-BK
A215-BK
D986-PK
D985-BR
202-BK
1
UNUSED
UNUSED
SPARE
UNUSED
UNUSED
UNUSED
MANUAL RETARD PRESS SW
AUTO RETARD PRESS SW
UNUSED
AUTO RETARD LAMP
OIL PRESSURE SW
ENGINE SPEED
AIR SUPPLY VALVE
AIR CONTROL VALVE
HARNESS CODE 4
UNUSED
HARNESS CODE 3
HARNESS CODE 1
HARNESS CODE 2
HARNESS CODE 0
GROUND
UNUSED
AUTO RETARD OFF
AUTO RETARD ON
UNUSED
UNUSED
AUX(5)
AUX(4)
AUX(3)
AUX(2)
AUX(1)
+10V SENSOR SUPPLY
L56
L56
+ BATTERY
DATA LINK -
710-GN
126-PK
202-BK
DATA LINK +
L36
L35
L39
L39
UNUSED
CLEAR SWITCH
SET SWITCH
UNUSED
UNUSED
HHH
SERVICE SET SW
9D-3721
SERVICE CLEAR SW
9D-3721
202-BK
215-BK
2
1
2
1
1
87
30
87a
2
B L
2
START RELAY
BU ALARM
NEUTRAL EMS
NEUTRAL PMC
START SW
SERVICE
CLEAR
SPARE
UNUSED
1
DATA -
DATA +
30
892-BR
893-GN
280-BK
UNUSED
YL
L40
L
L
D997-YL
D996-PU
202-BK
202-BK
OR
BK
WH
PK
PU
RD
BR
GN
BU
9
202-BK
706-BR
UNUSED
202-BK202-BK
202-BK
202-BK
L43
L31
L39
L35
L34
L37L37
L36
L40
L56
L38
L55
13
L55
35
L41
L41
L41
L42
L59
D997-YL
30
3
1
4
2
202-BK
202-BK
202-BK
29
28
27
BK-18
L
720-PU
202-BK
2
14
21
202-BK
L67
10
A
A
A
A
200-BK
16
122-BU
200-BK
403-GN
L35
15
470-PU
202-BK
5
12
200-BK
10
121-YL
126-PK
132-PK
123-WH
103-YL-14
767-WH
700-PK
454-GN
9
4
3
8
37
6
36
18
17
7
19
7
707-PU
794-YL
449-BU
2
202-BK
20
34
33
700-PK
6
5
4
3
32
31
2
25
24
AUX(0) 891-BU
23
PYLD MNTR
126-PK
202-BK
XMSN
SPEED
DISTRIBUTOR
3T-5438
767-WH
767-WH
R
P
P
1
1
202-BK
A218-BK
FRONT GR 5
FRONT GR 4
FRONT GR 3
FRONT GR 2
FRONT GR 1
737-GN
736-YL
735-OR
EPTC-II
XMSN
CONTROL
3E-5390
734-WH
22
26
11
216-BK
213-BK
ID CODE 1
ID CODE 2
ACCELERATOR SW
202-BK
202-BK
202-BK
720-PU
8
PK-18
YL-18
BK-18
GROUND
5
3
2
794-YL
202-BK
202-BK
1
GY-18
WH-18
SPEED
+ BATTERY
7
733-BR
202-BK
710-GN
L56
86
706-BR
604-OR
LEVER 5
LEVER 4
LEVER 3
LEVER 2
LEVER 1
ID CODE 3
ID CODE 2
ID CODE 1
ID CODE 0
GND VERIFY
GND VERIFY
LKUP SOL
+ BATTERY
GROUND
UP SOL
DOWN SOL
RETARDER
BED RAISE
+V
BRAKE
GEAR 1
GEAR 2
GEAR 3
GEAR 4
GEAR 5
37
36
35
34
33
32
31
29
28
27
26
25
24
23
22
21
11
20
19
18
17
16
15
14
13
12
9
8
7
6
5
4
3
2
1
A
L
L
707-PU
202-BK
470-PU
321-BR
121-YL
202-BK
4
707-PU
126-PK
6
3
5
2
1
7
711-BR
712-WH
713-OR
714-YL
715-GN
716-BU
707-PU
202-BK
126-PK
218-BK
219-BK
703-BU
704-GY
705-PK
709-OR
721-BR
722-WH
723-OR
724-YL
725-GN
726-BU
227-BK
217-BK
L60
L60
707-PU
L30
BK-18
123-WH
449-BU
PROP SOL
TEST
ID CODE 0
ID CODE 4
ID CODE 3
RIGHT SP
LEFT SP
+ BATTERY
GROUND
RIGHT SOL
LEFT SOL
XMSN SP
11
16
20
19
18
2
17
13
12
10
8
7
6
GN-18
4
1
15
3
SPEED IN
L38
6
700-PK
767-WH 4
4
5
5
700-PK
767-WH
710-GN
W/O
TRACTION
AID USE
WIRE AS. EEE
TRACTION AID
CONTROL
3E-9224
EEE
BK
A
202-BK
768-OR
132-PK 1
2
3
R
202-BK
768-OR
132-PK 1
2
3
202-BK
769-BU
770-GN
775-BR
774-YL
773-GY
202-BK
212-BK
TRACTN AID
OR-18 4
+12V
5
767-WH
9
BRAKE
772-BR
NEUTRAL START
CONTROL
7X-1362
200-BK
200-BK
470-PU
307-OR
WH-18
BR-18
BU-18
GY-18
BK-18
GN-18
PU-18
OR-18
126-PK
768-OR
306-GN
409-OR
START SW
NEUTRAL
GROUND
2
3
1
YL-18
OR-18
1
9
4
5
2
6
7
8
3
GN-18
OPR PANEL
P
P
START RELAY
PK-18
+ BATTERY
BK-18
RETARDER
BRAKE SW
3E-2035
BK-18
SERVICE/RETARDER
BRAKE
TEE
SERVICE
BRAKE SW
3E-2034
STOP
LAMP SW
2M-9346
SERVICE
BRAKE SW
3E-2034
SERVICE METER
6T-7337
-+
706-BR
202-BK
720-PU
BK-18
BK-18
XMSN SPEED
10
BK-18
710-GN
L30
ID CODE 4
SECONDARY
BRAKE SW
3E-2033
AR
772-BR
767-WH
132-PK
768-OR
L30
BK-18
200-BK
454-GN
14
L30
CONN3
CONN5
L1
L42
614-PU
614-PU
200-BK
L58
L57
L59
200-BK
L18
L6
200-BK
998-BR
450-YL
450-YL
NNN
998-BR
998-BR
727-GN
123-WH
123-WH
403-GN
105-BR
L64
Q
L64
L64
105-BR
L47
200-BK
200-BK
A
308-YL308-YL
200-BK
200-BK
200-BK
L43
AUTO
LUBE
L41
2
1
L43
L44
L61
L61
L55
L55
L50
L49
L51
L51
L50
L49
L18
L52
L51
L50
L49
200-BK
200-BK
200-BK
308-YL
200-BK
L1
L43
L43
L62
L62
L62
L4
L4
L1
L10
L11
L10
L11L11
L10
L18
A
PP
101-RD-10
P
A
200-BK
308-YL
6
8
5
2
4
3
9
7
126-PK
410-WH
124-GN-14
200-BK
727-GN
307-OR
308-YL
201-BK
411-PK
123-WH
200-BK
200-BK
449-BU
470-PU
707-PU
202-BK
794-YL
138-GN
112-PU
109-OR
101-RD
200-BK
200-BK
614-PU
BK
9
200-BK
201-BK
307-OR
126-PK
201-BK
136-GN
200-BK
403-GN
728-BU
470-PU
A
200-BK
727-GN
308-YL
403-GN
417-GY
308-YL
727-GN
307-OR
470-PU
728-BU
449-BU
794-YL
707-PU
411-PK
450-YL
410-WH
306-GN
201-BK
113-OR
409-OR
202-BK
614-PU
123-WH
306-GN
136-GN
891-BU
138-GN
614-PU
200-BK
123-WH
105-BR
450-YL
138-GN
727-GN
136-GN
B948-BR
113-OR
126-PK
998-BR
2
1
3
5
W
4
8
7
6
3
4
5
2
1
138-GN
794-YL
891-BU
201-BK
437-BR
412-BU
405-GY
406-PU
413-BR
403-GN
426-BR
407-PK
446-PU
419-YL
449-BU
1
P
F
415-GN
450-YL
1
2
3
4
441-OR
446-PU
5
6
7
8
415-GN
411-PK
410-WH
405-GY
417-GY
113-OR
201-BK
201-BK
408-WH
419-YL
412-BU
426-BR
407-PK
409-OR
200-BK
EEE
707-PU
202-BK
437-BR
403-GN
413-BR
B948-BR
441-OR
201-BK
408-WH
201-BK-14
406-PU
201-BK
201-BK
200-BK
201-BK
10A
7
998-BR
6
5
4
3
2
1
P
200-BK
L35
123-WH
998-BR
200-BK
200-BK
307-OR
138-GN
113-OR
614-PU
123-WH
W/O PAYLOAD MONITOR
CONNECT WIRE AS. EEE
TO HARNESS P
CONN16
CONN17
D70531
BK-18
USER DEFIN SHTDWN
201-BK
C
1
2
993-BR
997-OR
993-BR
C
ATMOSPHERIC
PRESSURE
SENSOR
6V-1926
A
B
C
ANALOG RET
+V ANALOG
SIGNAL
OR-18
YL-18
GN-18
997-OR
993-BR
A747-GY
BK-18
GN-18
YL-18
OR-18
OR-18
YL-18
441-OR
KKK
KKK
TO MOUNTING
BOLT
TO FRONT
HOUSING
9 GA
RECEPT AS. (8)
9X-0352
INJECTOR GP (8)
7E-8836
RRR
RRRRRR
RRRRRR
RRRRRR
RRRRRR
RRRRRR
RRRRRR
RRRRRR
RRR
BR
BR
BR
BR
BR
BR
BR
BR
BR
BR
BR
BR
BR
BR
BR
BR
BK-18
BK-18
L21
L9
L9
L17
L17
U
C
U
TT
TT
UU
UU
BK-2
TO
FRAME
TO
CYLINDER
HEAD
2
1
D982-GN22
TIMING CAL -
413-BR
406-PU
893-GN
892-BR
C940-GN
A430-OR
C972-YL
A983-BU
A700-OR
150-OR-14
405-GY
B948-BR
412-BU
201-BK
998-BR
ENGINE CONTROL
9X-9972
360-GN
361-OR
FUEL FILTER SW
116-9933
AFTERCOOLER
TEMP SW
7N-7849
DIAGNOSTIC ENABLE
SHUTDOWN SIGNAL D
SHUTDOWN SIGNAL C
OIL PRESS (EMS)
437-BR
CAT DATALINK +
CAT DATA LINK -
DIAGNOSTIC LAMP
437-BR
441-OR
ELV LO IDLE ENABLE
COOLANT
FLOW SW
9X-7088
539-BU
~T
°T
611-PU-14
610-OR-14
614-PU
540-WH
993-BR61
16
997-OR
56
52
51
C
B
201-BK
201-BK
TORQUE
CONVERTER
TEMP SW
7N-7854
A
T °
L16
997-OR
GN-18
YL-18
OR-18
SIGNAL
+V ANALOG
ANALOG RET
C
B
A
A
B
C
ANALOG RET
+V ANALOG
SIGNAL
JJJ
JJJ
JJJ
JJJ
F721-GY
TIMING
CALIBRATION
CONNECTOR
ENGINE
SPEED/
TIMING
SENSOR
102-9029
ENGINE
COOLANT
TEMP
SENSOR
102-7532
ENGINE
OIL
PRESSURE
SENSOR
6V-1964
F721-GY
L17
L17
SIGNAL
+V ANALOG
ANALOG RET
C
B
A
A
B
C
ANALOG RET
+V ANALOG
SIGNAL
OR-18
BK-18
WH-18
C
TURBO
INLET
PRESSURE
SENSOR
6V-1926
OPERATOR STATION
ALARM
9G-9813
481-GN
A746-PK
A980-BU
C
994-GY
C
993-BR
C
C
+V THROTTLE
TIMING CAL +
+ BATTERY
1
2
CC
2
1
1
2
CC
2
1
1
2
CC
2
438-YL
1
1
2
M
2
1
BK
RD
201-BK
410-WH
3
C
C
49
60
58
48
997-OR
993-BR
A746-PK
997-OR
L54
993-BR
A980-BU
997-OR
993-BR
450-YL
200-BK-14
45
35
34
33
32
430-BU
31
27
GROUND
LEVEL
SHUTDOWN SW
4D-1836
998-BR
998-BR
998-BR
361-OR
360-GN
998-BR
438-YL
21
COOL TEMP (EMS)
A747-GY
19
430-BU
ENGINE
GROUND
997-OR
C915-GY
229-BK-14
-BATTERY
993-BR
C915-GY
17
8
C
65
4
413-BR
311-WH
3 GN-18
893-GN
892-BR
C940-GN
995-BU
44
A430-OR
AIR FILTER LAMP
C972-YL
A983-BU
A700-OR
63
994-GY
1
TURBO
OUTLET
PRESSURE
SENSOR
103-6091
997-OR
993-BR
995-BU
ATMOS PRESS
13
ENGINE ON (EMS)
THROTTLE SIGNAL
150-OR-14
A748-GY
C
WH-18
1
BK-18
46
OR-18
59
SIGNAL
43
+V TIMING
DIGITAL RET
7
C
PARK-TURN
LAMP
3T-3967
BR
RD
PARK-TURN
LAMP
3T-3967
BR
RD
U
U
T
T
TT
2
1
2
1
LOW BEAM
HEAD LAMP
8C-5373
LOW BEAM
HEAD LAMP
8C-5373
HI BEAM
HEAD LAMP
9W-0052
HI BEAM
HEAD LAMP
9W-0052
B
A
540-WH
614-PU
611-PU-14
619-GN-14
3
2
4
1539-BU
614-PU
3
2
4
1
611-PU-14
619-GN-14
THROTTLE BYPASS
2
1
TT
66
5
36
50
37
70
997-OR
A701-GY
A702-PU
A703-BR
A704-GN
361-OR
360-GN
A705-BU
A706-GY
A707-PU
A708-BR
A721-WH
A722-YL
A723-OR
A728-WH
A724-WH
996-GN
999-WH
997-OR
993-BR
994-GY
996-GN
998-BR
COOL. TEMP SIG.
995-BU
COOLANT
TEMP SENDER
6N-5926
A980-BU
COMP INLET PRESS
54
55
14
42
68
41
69
28
11
25
39
53
67
12
26
40
SOLENOID 8 RETURN
SOLENOID 7 RETURN
SOLENOID 6 RETURN
SOLENOID 5 RETURN
SOLENOID 4 RETURN
SOLENOID 3 RETURN
SOLENOID 2 RETURN
310-PU
SOLENOID 1 RETURN
SOLENOID 8 POWER
SOLENOID 7 POWER
SOLENOID 6 POWER
SOLENOID 5 POWER
SOLENOID 4 POWER
SOLENOID 3 POWER
SOLENOID 2 POWER
9
6
62
47
10
24
18
64
405-GY
15
20
23
403-GN
C
C
B948-BR
C
29
C
BOOST PRESSURE
OIL PRESS. SIGNAL
38
ANALOG RETURN
+V ANALOG SUPPLY
ENGINE SPEED
+V TIMING
2
1
A708-BR
A707-PU
A706-GY
A705-BU
A704-GN
A727-PK
A726-OR
A725-YL
A725-YL
57
A724-WHA726-OR
A723-OR
30
A722-YL
A727-PK
A703-BR
A702-PU
A721-WH
A728-WH
DIGITAL RETURN
SOLENOID 1 POWER
A701-GY
CYLINDER
HEAD
SOL 8
CYLINDER
HEAD
SOL 7
C
CYLINDER
HEAD
SOL 6
CYLINDER
HEAD
SOL 5
CYLINDER
HEAD
SOL 4
CYLINDER
HEAD
SOL 3
997-OR
2
2
999-WH
CYLINDER
HEAD
SOL 2
CYLINDER
HEAD
SOL 1
1
A746-PK
OVERSPEED LAMP
998-BR
997-OR
C
C
EMS ACTION
VVV 124-6344 00 B-6
ACCEL
SW
NOTE F
3
NOTE D: WITHOUT AETA CONTROL, TAPE BACK WIRES 700-PK & 767-WH
ATCHD-1300125-7757UUU
120-9288 00Z A-13
STD
A-10002A-7072TTT
STD
STD
A-2017X-6035
C-1057E-5342RRR
KKK
ATCH
NOTE C
ATCHA-7007I-5516
C
ATCHA-60331-8761
LL
BB
015T-9181 ATCHA-6XX
C
A-7
A-7
109-4394 00
002G-4177
RR
QQ
E-1300
019G-0549
008W-3713
002A-7097
02
2A-7073HHH
D-10/D-1500
A-7
EEE
F-12018X-7029FFF
DDD 2A-7013 00 C-4
B-5008X-1211
018D-8999GGG
8X-1482
A-8018X-8319VV
028W-7711
017I-5521
A-7
00
00
01
00
00
02
02
01
C-11007G-1060
A-7
027X-1784
D-10
B-2
B-1
A-5/A-6
A-4/A-6
C-12
B-13
B-14
D-15
A-67I-4731
8W-6419
5T-9182
2G-5786
2A-7095
2A-7098
6S-1061
2A-7099
2A-7093
2P-9082
2P-9081
2A-7115
028W-9493
002A-7062
008X-8317
056G-9747
007I-4854
00108-6563
00
BBB
00
01
01
02
01
01108-4530
01
01126-2343
CHG
4N-6580
A-6
A-7
2A-7094
2A-7096
A-7
A-6
A-7
A-7
A-6
A-7
A-7
MM
LL
ATCH
A-6XX
B-8
B-8
C-14
A-15
C-5
A-1
B-1
D-5
02
02
02
C-11
DD
CC
A-5AAA
SSS
PP
WW
NNN
CABLE AS.
W
D-6
BB
NN
AA
WIRE AS.
V
T
S
R
K
J
H
F
D
B
A
HARNESS AS.
LOCPART NO.IDENT
UU
FF
G
E
X
U
Q
P
C
ATCH
ATCH
TT
ATCH
B-8
SS
008W-8354QQQ
B-8
L
M
B-201
007I-4744PPP
B-6/B-701102-8644MMM
A-400
D-5
NOTE E: WITHOUT ARC CONTROL, TAPE BACK WIRES D985-BR, D986-PK
AND 202-BK.
2A-7018LLL
02
JJ
02
01
01
2A-7015
02
JJJ
KK
GG
D-1
E-10
C-4
D-13
A-4
B-12
B-11
E-3
E-3
00104-2779
06
04
B-15
B-10
A-3
C-8
8C-9677
CCC
00
108-2232
00
2A-7012
2A-7017
125-7862
8X-1203
2A-7016
8X-8318
01
108-4531
8X-1209
2A-7114
01
025T-5141
EE
YY
ZZ
Y
N
119-6278
108-6564
HH
6D-1126
4E-0718
026G-9462
NOTE A: NORMALLY OPEN BEFORE REFRIGERANT CHARGE
UNLESS OTHERWISE SPECIFIED: ALL WIRE IS 16 GAGE
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF
AND THE XMSN SHIFTER IN NEUTRAL.
THIS SCHEMATIC IS FOR THE 777C TRUCK (9X-1128 CHG 01)
NOTE
NOTE F: NOT USED ON THIS MACHINE, TAPE BACK TO HARNESS UUU
NOTE B: NOT USED ON MACHINES WITH AIR START
NOTE C: USED ON MACHINES WITH AIR START ONLY
XXX
1
2
H
419-YL
472-OR
472-OR
2
1
L66
L66
L26
L26
L26
L26
L26
L60
L60
113-OR
113-OR
L32
L15
L15
TTT
B
L15
200-BK
10
9
8
7
6
4
3
2
A747-GY
993-BR
997-OR
C
B
A
H
L3
403-GN
L20
H
L34
2
L48
L48
L3
L3
1
L25
L25
L22
L23
L20
L3
L46
L57
L44
L49
L33
L49
201-BK
408-WH
201-BK
201-BK-14
J
D
311-WH
L65
727-GN
L65
BBB
4
314-PU
313-GY
311-WH
304-WH
302-OR
203-BK
207-BK
450-YL
727-GN
7
D
P
513-OR-14
522-WH-14
109-OR-4
521-YL-14
513-OR-14
L45
L45
L45
113-OR
728-BU
521-YL-14
522-WH-14
450-YL
A
5
4
3
2
1
P
14
403-GN
481-GN
201-BK
426-BR
407-PK
446-PU
419-YL
472-OR
481-GN
419-YL472-OR
201-BK
426-BR
446-PU
481-GN
407-PK
LLL
1
202-BK
207-BK
203-BK
314-PU
313-GY
306-GN
304-WH
302-OR
BRAKE
RETRACT
8C-9514
MOTOR
777-PU-10
J
H
799-WH
707-PU
818-BR
819-GY
250-BK
820-BU
NNN
E
D
C
B
A
2
BU
PU
4
3
L
2
1
L34
310-PU
1
B
109-OR-4
5
H
A
13
19
16
22
21
8
7
18
15
9
6
4
3
2
12
25
10
11
17
23
20
14
24
1
777-PU-10
203-BK
727-GN
113-OR
462-YL
200-BK-8
101-RD-4
5
614-PU
3
606-GY
605-YL
604-OR
6
L50
J
321-BR
11
12
4
18
2
6
20
16
1
15
9
19
8
7
5
10
17
3
13
462-YL
A
207-BK
122-BU
101-RD-4
J
522-WH-14
A
200-BK-10
481-GN
L2
BRAKE MASTER
CYLINDER
OVERSTROKE SW
7V-5647
BBB
L33
BODY
RAISE SW
8C-5681
BK
C
PU
NOT USED
403-GN
521-YL-14
CONN7
CONN9
CONN8
CONN10
CONN11
CONN12
CONN13
CONN14
CONN15
CONN18
CONN25 CONN26
CONN19
CONN20
CONN21
CONN22
CONN22
CONN23
CONN27
RD
RD
2
1
CCC
CCC
1
3
2
GROUND
+V
SIGNAL
BK-18
WH-18
RD-18
311-WH
B926-GY
311-WH
B926-GY
310-PU
RESISTOR
9X-9584
CONTROL GP
9X-3207
ELEV LOW
M
306-GN
200-BK
BK-00
Q
200-BK
113-OR
WITH SHUTTER CONTROL,
CONNECT HARNESS AS. LLL
BETWEEN HARNESS AS.
C AND K
K
C
LLL
LLL
2
1
2
2
1
L19
BK
BK
1
L24
L24
C
L18
L54
L14
L54
L21
AIR
START
SOLENOID
5T-4434
XX
306-GN GN
BK
NOTE C
1
2
5
4
3
1
2
306-GN
306-GN
XX
306-GN
306-GN
BB
BB
XX
XX
NN
XX
AAA
MM
GGG
JJ
HH
XXXX
XX
PP
FF
GG
GG
AAA
EE
NN
2
L19L19
L19
799-WH
799-WH
251-BK 251-BK
BK-18
B
200-BK
DDD
K
C
DDD
DDD
DDD
DDD
998-BR
C940-GN
C972-YL
1
2
THROTTLE
POSITION
SENSOR
110-8190
A983-BU
998-BR
A700-OR
998-BR
C915-GY
C972-YL
C940-GN
B M
M
DDD
START AID
SW
3E-7298
998-BR
C940-GN
C972-YL
C915-GY
7
5
4
8
6
3
1
2 998-BR
DIAG ENABLE/ THROTTLE
OVERRIDE SW
8C-9685
3
1
C915-GY
C972-YL
C915-GY
C940-GN
998-BR
5
998-BR
4
1
3
WH-18
BK-18
RD-18
SIGNAL
+V
GROUND
2
3
L16
2
1
C
L20
BULB
7N-9943
MMM
BK
BK
CC
EE
A
A
W
W
W
A510-OR
112-PU-12
BK-18
930-BR
VVV
FAN CLUTCH
JACKET WATER
TEMP SENSOR/
SOL DRIVER
100-8099
VVV
VVV
VVV
VVV
L30
FAN CLUTCH
SOLENOID
101-0329
°T
C
AFTERCOOLER
TEMP SW
7N-7848
200-BK
200-BK
4
OR-14
3
2
1
YL-14
BK-14
A510-OR
200-BK
BK/WH-14
B
J
A
2
112-PU-12
IDLE ENABLE SW
6T-3990
(101-RD-10)
(314-PU-10)
(313-GY)
(101-RD-10)
(304-WH-10)
(302-OR)
(312-PK)
(314-PU)
(306-GN)
(306-GN)
(200-BK)
(301-BU)
(304-WH)
(306-GN)
BRAKE
RETRACT
RELAY
3E-7279
1
2
Q
(306-GN)
(200-BK)
L24
B
A
BK
L24
BK
L24
L24
103-YL-14
200-BK
A
A
BK-00
AUX START
RECEPTACLE
B770-YL
B771-BR
YL-18
BR-18
VLV
MOD
E
D
B771-BR
C
B
BK-18
WH-18
A
2
1
450-YL
200-BK
ENGINE
SPEED
PICKUP
3E-7886
BK
2
BU BU
313-GY
BK
GN
GN
GN
GN
H
H
200-BK
DISCONNECT SW
7N-0718
XX
XX
GRD
RESISTOR
6T-2217
NOTE B
RESISTOR
6T-2217
NOTE B
302-OR
304-WH
OR
WH
OR
6
L17
VV
OVR
NN
314-PU
200-BK
306-GN
2
1
3
4
5
200-BK
306-GN
2
1
3
4
5
WH
+ BAT
2
1 1
STARTER
1W-6363
NOTE B
STARTER
1W-6363
NOTE B
PP
MM
RD-18
RD-00
RD-00
RD-10
RD-10
WH/BK-10
WH/BK-10
BK-000
START RELAY
3E-0256
NOTE B
START
RELAY
3E-0256
NOTE B
BK-00
G S
MTR BAT
MOTOR
G S
MTR BAT
MOTOR
BK-18
ALTERNATOR
9X-7803
OR-18
B770-YL
635-BU
M
200-BK
103-YL-14
602-WH
DOME
LAMP
8C-9678
3
WW
2
OPERATOR STATION
1
DOOR
COURTESY
LAMP SW
9D-4068
BK-18
Q
Q
Q
Q
Q
AAA
A510-OR
403-GN
200-BK
C
RD-18
WH-18
113-OR
Q
B994-GN-14
513-OR
REFRIGERANT SW
8T-8639
RD-00
START AID
SOLENOID
9X-7137
YY
103-YL-14
403-GN
200-BK-14
311-WH
192-GN-10
101-RD
RD-00
192-GN-10
20A
15A 10A
DOME & STOP
LAMP
BREAKER
6N-8589
112-PU-12
ALT BREAKER
3E-7294
101-RD-10
ALT
136-GN
R
105A
310-PU
L21
+
BRAKE RETRACT
BREAKER
3T-8728
101-RD-4
101-RD-10
109-OR-6
NN
L21
C
A/C
CLUTCH
SOLENOID
7N-4287
450-YL
101-RD-10
112-PU-10
SS
SS
RIGHT FRONT
STRUT SENSOR
124-0328
LEFT FRONT
STRUT SENSOR
124-0328
858-GY
859-YL
251-BK
251-BK
799-WH
799-WH
1
2
3
GROUND
+V
SIGNAL
GN
GY
YL
1
2
3
GROUND
+V
SIGNAL
GN
GY
YL
522-WH-14
513-0R-14
109-OR-4
PAYLOAD
MONITOR
GREEN
LAMP
8T-9684
BULB
8T-9749
PAYLOAD
MONITOR
RED
LAMP
8T-9683
BULB
8T-9749
635-BU
799-WH
799-WH
636-GN
2
2
1
1
BK
BK
RD
RD
SS
SS
BK-4
522-WH
BK-4
109-OR-4
XX
XX
BK-00
BK-00
BK-00
BK-00
203-BK
207-BK
TO ENG
BLOCK
TO
FRAME
BU310-PU
522-WH-14
513-OR-14
L21
CCC
K
T °
B926-GY
311-WH
200-BK-14
BK
1
2
799-WH
636-GN
858-GY
251-BK
859-YL
858-GY
CCC
C
2
1
310-PU
311-WH
311-WH
START AID
CONN28
CONN29
CONN31
L24
F721-GY
2
122-BU
L918-YL
GN
GN
1
BK
L918-YL
J
J
1
2
°T
BRAKE OIL
DIVERTER
TEMP SW
3E-6449
207-BK
BRAKE OIL
DIVERTER
SOLENOID
101-3430
BK
893-GN
892-BR
998-BR
150-OR-14
893-GN
892-BR
799-WH
799-WH
636-GN
635-BU
636-GN
635-BU
799-WH
799-WH
251-BK 251-BK
251-BK
L64
L60
L60
L24
WITHOUT A/C
PLUG QQQ INTO
HARNESS AS. LLL
B994-GN-14
SHUTTER
SOLENOID
9X-9482
QQQ
BK
L3
1
3
4
2
1
2
1
PPP
PPP
COOLANT
TEMP SW
7N-7849
PPP LLL
BK
BK
914-YL
200-BK
914-YL
°T
A/C PRESSURE
SW
7X-2013
522-WH
2
200-BK-14
MMM
LLL
B994-GN-14
914-YL
913-BU
522-WH
BK/WH-14
OR-14
YL-14
BK-14
LLL
2
4
3
1
LLL
113-OR
2A
4A
3A
913-BU
1A
L54
L54
L15
L14
L14
L14
L9
L9
RD-00
200-BK
BUS BAR
8C-6358
NOTE B
BUS BAR
8C-6358
NOTE B
QQ
RR
GG
GG
DD
DD
LL
CC
KK
AA
RD-00
RD-00
RD-000
L48
L52
15
D
D
D
D
D
D
D
998-BR
37
38
22
36
18
27
25
35
310-PU
311-WH
481-GN
998-BR
998-BR
998-BR
403-GN
32
39
993-BR
997-OR
A747-GY
430-BU
C
B
105-BR
21 B948-BR
GGG
200-BK
113-OR
892-BR
893-GN893-GN
892-BR
201-BK
B948-BR
C972-YL
998-BR
105-BR
G
F
E
D
J
H
C
B
A
A430-OR
B
150-OR-14
P
C940-GN
A700-OR
A983-BU
998-BR
B
201-BK
10
9
2
405-GY
413-BR
406-PU
437-BR
412-BU
441-OR
8
5
6
7
203-BK
2
B948-BR
441-OR
412-BU
437-BR
406-PU
413-BR
405-GY
9
10
8
16
1
L66
L66
VV
L22
L22
L3
L3
L28
L19
L19L28
L18
L53
L53
L53
L48
L52
L52
29
XXX
727-GN
462-YL
1
3
J
J
H
31
H
33
VV
VV
J
J
TO
FRAME
L9
L23
L23
VVV
TORQUE CONVERTER
TEMP SW
3E-7504
1
2BK-18
FAN CLUTCH
A/C PRESS. SW
101-0912
T °
200-BK
BK-18 200-BK
A510-OR
L30
L
137-OR-12
VV
1
3
2A
4
4A
3A
20
200-BK
STEERING SW
109-4215
BK-18
200-BK-8
450-YL
200-BK-10
6
BK-18
1
2
122-BU
728-BU
200-BK
AIR DRYER
2G-2159
407-PK481-GN
BRAKE SW
7N-7854
T °
1A
H
7
11
867-PU
866-PK
865-GY
864-BR
863-BU
251-BK
NNN
12
40
2
B948-BR
313-GY
201-BK
L3
304-WH
314-PU
306-GN
207-BK
302-OR
306-GN
799-WH
867-PU
866-PK
865-GY
PU-18
864-BR
1
2
3
4
5
6
7
GROUND
+ BATTERY
GN-18
BK-18
863-BU
138-GN
8
WH-18
BU-18
BR-18
GY-18
PK-18
MODE
TEST/SET
LCD LATCH
LCD CLOCK
TX LCD OUT
28
23
799-WH
891-BU
707-PU
799-WH
635-BU
636-GN
200-BK-14
RD-00
VV
12V BATTERY
9G-2648 STD
12V BATTERY
9G-2648 STD
STEERING
116-4531
AA
JJ
BK-00
BK-00
NEGPOS
FUSE
3K-8782
10A
12V BATTERY
9G-2648 STD
NOTE B
12V BATTERY
9G-2648 STD
NOTE B
CC
QQ
RR
KK
LL
AA HH
STEERING
MOTOR
RELAY
3E-0154
RD-00
BK-00
MOTOR
NEGPOSNEGPOSNEGPOS
+24V (OUT)
C915-GY
A983-BU
A700-OR
C940-GN
251-BK
C972-YL
17
RD-00
13
14
24
513-OR-14
521-YL-14
RD-00
H
26
L51
ENGINE SERVICE
CONNECTOR
251-BK
L54
A430-OR
SS
SSS
799-WH
B948-BR
430-BU
893-GN
892-BR
799-WH
860-PK
861-PU
251-BK
858-GY
859-YL
799-WH
138-GN
707-PU
891-BU
251-BK
635-BU
636-GN
799-WH
251-BK
19
794-YL
138-GN
C915-GY
3
6
5
4
3
2
1
1
30
2
3
4
799-WH
635-BU
636-GN
522-WH-14
34
521-YL-14
4
794-YL
PAYLOAD MONITOR
OPERATOR DISPLAY
9X-6847
5
200-BK
200-BK
J
446-PU
426-BR
426-BR
°T
201-BK
XMSN OIL SW
9G-3341
XMSN
FILTER SW
3E-7868
BRAKE OIL
SENDER
8N-3844
201-BK
°T
859-YL
858-GY
861-PU
860-PK
863-BU
864-BR
865-GY
NNN
NNN
251-BK
101-RD-4
866-PK
101-RD-4
RD-00
462-YL
AA
LL
867-PU
203-BK
BK-00
H
727-GN
203-BK
SECONDARY
1
2
6
UUU
A218-BK
A231-BK
A215-BK
A217-BK
UUU
L6
L6
L6
L6
7
1
8
5
4
2
4
TO MANUAL
RETARD
PRESS SW
AUTO
RETARD
PRESS SW
9W-0263
TO
RETARDER
LAMP
ARC
SUPPLY
VALVE
3E-8691
ARC
CONTROL
VALVE
3E-8691
D994-BU
D993-YL 202-BK
202-BK
202-BK
D988-WH
D989-BU
D992-PU
202-BK
202-BK
202-BK
202-BK
454-GN
202-BK
1
2
1
6
2
1
2
UUU
UUU
UUU
UUU
UUU
UUU
UUU
UUU
UUU
UUU
450-YL
A216-BK
1
UUU
A
2
3
FF
5
L57
L39
5
202-BK
ZZ
113-OR
N
N
N
N
N
ZZ
200-BK
893-GN
892-BR
321-BR
202-BK
450-YL
L61
L44
176-OR
D985-BR
L1
L43
L42
L45
L58
L44
L61
L61
L49
L1
L1
L2
L58
L40
L39
L35
L35
L39
L40
L40
L39
L46
L47
L50
L67
L67
202-BK
A
P
A
NNN
N
N
N
A
202-BK
D986-PK
N N
A
200-BK 200-BK
A
522-WH-14
200-BK-14
521-YL-14
124-GN-14
517-BU-14
516-GN-14
515-GY-14
MOTOR
521-YL-14
MOTOR
124-GN-14
2
200-BK
614-PU
1
1
2
OR
GN
BU
BK
RD
WH/RD-14
WH/RD-14
3
BK-14
4
BK-14
5
200-BK-14
2
200-BK-14
1
515-GY-14
515-GY-14
200-BK-14
BLOWER
9G-8697
PANEL LAMP
7N-5876
THERMOSTAT
3E-5464
BLOWER SW
6P-3236
BLOWER
9G-8697
522-WH-14
614-PU
2
1
2
P
TACHOGRAPH
7D-1513
123-WH
614-PU
3
2
1
728-BU
307-OR
306-GN
L43
200-BK-14
3
1
4
200-BK-14
310-PU
462-YL
251-BK
202-BK
202-BK
202-BK
202-BK
521-YL-14
522-WH-14
200-BK-8
201-BK-14
A
202-BK
4
L
777-PU-10
101-RD-4
109-OR-4
L42
L41
L58
L57
310-PU
L43
L59
L55
A
L
FFF
202-BK
202-BK
737-GN
736-YL
735-OR
734-WH
733-BR
202-BK
126-PK
FRONT GR 4
TRANSMISSION
GEAR INDICATOR
8C-9609
FRONT GR 5
GN-18
RD-18
BU-18
PU-18
GY-18
BR-18
7
6
3
FRONT GR 3
OR-18
+ BATTERY
FRONT GR 2
GROUND
ID CODE 1
3
2
4
1
FRONT GR 1
YL-18
BK-18
WH-18
2
1
5
ID CODE 3
ID CODE 2
L
200-BK
14
13
12
11
SHIFT
LEVER SW
126-7896
711-BR-18
712-WH-18
713-OR-18
714-YL-18
715-GN-18
716-BU-18
202-BK-18
470-PU-18
3
4
5
8
9
1
2
10
7
6
LEVER 1
LEVER 2
LEVER 3
LEVER 4
LEVER 5
GND VERIFY
GROUND
NEUTRAL
711-BR
712-WH
713-OR
714-YL
715-GN
716-BU
202-BK
470-PU
121-YL
321-BR
321-BR
1
2
3
4
5
6
9
7
10
8
CAB GND
SERVICE CLEAR SW
9D-3721
SERVICE SET SW
9D-3721
310-PU
16
11
5
19
18
17
15
14
6
3
7
13
20
9
4
8
10
2
1
12
DIAGNOSTIC CONNECTOR
311-WH
203-BK
207-BK
308-YL
105-BR
109-OR
112-PU
101-RD
314-PU
307-OR
304-WH
302-OR
313-GY
L35
L40
BACKUP
ALARM SW
9G-7204
L46
ZZ ZZ
RESISTOR
9G-1950
L42
L45
515-GY-14
CONN10
709-OR308-YL-18
+BAT.
GN-18
GN-18
GN-18
GN-18
GN-18
GN-18
767-WH
202-BK
202-BK
767-WH
202-BK
767-WH
202-BK
767-WH
202-BK
251-BK
L27
L27
L27
215-BK
227-BK
202-BK
202-BK
L33
L34
L32
L48
L31 L31
L37
L28
L29
L29
202-BK
L27
201-BK
LEFT LAMP
RIGHT LAMP
614-PU
604-OR
640-GN
BK-18
BK-18
472-OR201-BK
201-BK
16
18
408-WH
E
E
E
E
E
E
799-WH
E
NNN
202-BK
202-BK
202-BK
L36
L29
773-GY
V
R
767-WH
202-BK
767-WH
770-GN
769-BU
775-BR
774-YL
212-BK
213-BK
OR
216-BK
11
1
2
8
9
4
14
5
7
6
10
13
1
2
200-BK-14
639-WH 3
4
2 TAIL IN
WH
BK
WH
BK
(L)
S-2
(R)
S-1
PROPORTIONAL
SOLENOID
3T-0062
767-WH
202-BK
5
6
2
1
3
4
767-WH
202-BK
769-BU
770-GN
V
3
2
1
BK
WH
GROUND
SIGNAL
+V
C
B
A
GROUND
SIGNAL
+V
C
B
A
L60
OPERATOR STATION
P
799-WH
867-PU
866-PK
865-GY
891-BU
864-BR
863-BU
860-PK
861-PU
858-GY
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
11
BED RAISE
TEST/SET
RX IN
TX KEY OUT
TX OUT
TX LCD OUT
R REAR PR
R FRONT PR
LINK GND
GREEN LAMP
RED LAMP
GROUND
+24V (IN)
L REAR PR
XMSN SPD
LCD CLOCK
LCD LATCH
L FRONT PR
NEUTRAL
MODE
707-PU
250-BK
818-BR
820-BU
819-GY
859-YL
794-YL
636-GN
635-BU
251-BK
799-WH
PARKING
BRAKE SW
3E-2033
201-BK
BRAKE
AIR SW
8T-9792
3
2
1
202-BK
202-BK
408-WH
BU
799-WH
819-GY
820-BU
818-BR
250-BK
L31
17
P
RD
BK
774-YL
775-BR
773-GY
L65
STOP IN
12
202-BK
202-BK
Y
L
231-BK
709-OR
710-GN
721-BR
722-WH
723-OR
724-YL
725-GN
726-BU
705-PK
704-GY
703-BU
709-OR
710-GN
721-BR
722-WH
723-OR
724-YL
725-GN
726-BU
705-PK
704-GY
703-BU
280-BK
218-BK
217-BK
219-BK
202-BK
202-BK
12
9
7
8
11
13
14
15
6
5
4
3
2
1
10
19
20
202-BK
3
LOCKUP
SOLENOID
7X-1120
DOWN SHIFT
SOLENOID
7X-1120
GROUND
SIGNAL
+V
C
B
A
TRANSMISSION SW
118-8471
721-BR-18
722-WH-18
723-OR-18
724-YL-18
725-GN-18
726-BU-18
231-BK-18
GROUND
GND VERIFY
GEAR 5
GEAR 4
GEAR 3
GEAR 2
GEAR 1
10
9
8
7
6
5
4
3
2
1
UP SHIFT
SOLENOID
7X-1120
2
2
2
1
1
1
Z Z Y
Y
Y
YY
XMSN
SPEED
SENDER
3E-6955
705-PK
704-GY
202-BK
202-BK
202-BK
703-BU
J
H
A
B
C
D
E
I
F
G 231-BK
709-OR
710-GN
705-PK
704-GY
703-BU
721-BR
722-WH
723-OR
724-YL
725-GN
726-BU
202-BK
X
V
V
4
1
2
3
WHEEL SPEED
SENDER
3T-2469
WHEEL SPEED
SENDER
3T-2469
X
X
SSS
SSS
RIGHT REAR
STRUT SENSOR
124-0328
LEFT REAR
STRUT SENSOR
124-0328
860-PK
861-PU
251-BK
799-WH
YL
GY
GN
SIGNAL
+V
GROUND
3
2
1
YL
GY
GN
SIGNAL
+V
GROUND
3
2
WH
GN
PU
STOP/TAIL
LAMP MODULE
7X-1670
E
4 WAY
SOLENOID
9G-9988
767-WH
202-BK
769-BU
202-BK
767-WH
770-GN
1
799-WH
799-WH
251-BK
251-BK
861-PU
860-PK
774-YL
775-BR
202-BK
202-BK
202-BK
773-GY
1
2
BULB
7G-9319
BULB
7G-9319
1
6
4
3
5
E
J
605-YL
614-PU
200-BK-14
321-BR
321-BR
604-OR
606-GY
BACK-UP
ALARM
3T-1815
BACK-UP
LAMP
8C-5582
STOP/
TAIL
LAMP
7X-6219
BULB
7X-6220
STOP/
TAIL
LAMP
7X-6219
BULB
7X-6220
TURN
LAMP
3T-3968
TURN
LAMP
3T-3968
321-BR
640-GN
606-GY
321-BR
639-WH
605-YL
PAYLOAD
MONITOR
CONTROL
9X-6846
CONN2
CONN1
CONN4
CONN6
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
TO MACHINE STRUCTURETO MACHINE STRUCTURE
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
GAUGE CIRCUIT.
MONITOR CIRCUIT.
PANEL LAMP CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
TURN SIGNAL CIRCUIT.
ENGINE CONTROL CIRCUIT.
PAYLOAD MONITOR CIRCUIT.
START AID CIRCUIT.
TRANSMISSION CONTROL CIRCUIT.
ARC CONTROL.
TRACTION AID.
ALL DASHED LINES ARE ATTACHMENTS.
