Components

Component Location Connector
* Denotes Information Not Available

4x2 Center Axle Disconnect Solenoid Right side of engine compartment C181
4X4 Low Indicator Switch Left side of transmission C189
4X4 Center Axle Disconnect Solenoid Right side of engine compartment C180
4R7OW Transmission Mounted under center of vehicle C183
4 Wheel Anti-Lock Brake System
Module Left side of engine compartment C146, C147
4 Wheel Drive Mode Switch Center of Instrument Panel (I/P) C230
Accessory Delay Relay In junction box fuse/relay panel *
A/C Clutch Diode Taped in harness, near A/C compressor *
A/C Clutch Cycling Pressure Switch Right rear corner of engine compartment C139
A/C Compressor Clutch Solenoid Left side of engine compartment C106
A/C Pressure Cutoff Switch Right side of engine compartment C170
Air Bag Delete Base of steering column C269
Air Bag Diagnostic Monitor Behind right side of I/P C208, C209
All Lock Relay In lock relays *
All Unlock Relay In lock relays *
Ashtray Illumination Top side of ashtray bracket C212
Autolamp Module Behind center of I/P C216
Auxiliary Power Socket Behind center of I/P C223
Backup Lamp Switch Left side of transmission C188
Battery Right side of engine compartment *
Battery Saver Relay In junction box fuse/relay panel *
Blend Door Actuator Behind center of I/P C229
Blower/Flasher Relay Block Behind center of I/P *
Blower Motor Right side of engine compartment C190
Blower Motor Resistor Near blower motor C191
Blower Relay In blower/flasher relay *
Brake Fluid Level Indicator Switch Mounted on master cylinder C162
Brake Pedal Position Switch Behind left side of I/P C252
Brake Pressure Switch Left rear corner of engine compartment C151
Brake Warning Diode In power distribution box *
Brake Warning Resistor Assembly In power distribution box *
Brake Warning Resistor/Diode
Assembly In power distribution box *
Camshaft Position Sensor Front of engine C100
Canister Vent Solenoid Rear of body, near fuel tank C413
Compact Disc Changer Left rear of cab C266
Center High Mount Stop Lamp Rear top center of cab C911
Central Timer Module Behind center of I/P C239, C267
Central Timer Module
Diagnostic Connector Behind center of I/P C205
Cigar Lighter Behind center of I/P C226, C227
Clockspring Assembly Base of steering column C233, C234
Clutch Pedal Position Switch On clutch pedal arm C231
Clutch Pedal Position Switch Jumper Behind left side of I/P C231
Crankshaft Position Sensor Lower front of engine C102
Cylinder Head Temperature Sensor Top front of engine C179
Data Link Connector Behind center of I/P C228
Daytime Running Lamps Module Left front of engine compartment C142
Differential Pressure Feedback
EGR Sensor Right side of engine C122
Differential Speed Sensor On rear axle C414
Differential Speed Sensor
Data Link Connector Left side of l/P panel C163
Digital Transmission Range Sensor Left side of automatic transmission C182
Dome Lamp Assembly Center of cab, in roof panel C306, C307
Driver's Air Bag Center of steering wheel hub C272
Driver's Unlock Relay In lock relays *
E4OD Transmission Center of vehicle, behind engine C193
EGR Vacuum Regulator Solenoid Left side of engine C121
Engine Compartment Lamp Attached to underside of hood C161
Engine Coolant Temperature Sender Left front corner of engine C105
Engine Coolant Temperature Sensor Front of engine C104
Engine Fuel Temperature (EFT-A) Sensor On top of engine C155
Engine Fuse Module Near power distribution box
Engine Oil Pressure Switch Left front of engine C101
Flasher Relay In blower/flasher relay block *
Fog Lamp Relay In power distribution relay box C175
Forward In-Bed Fuel Tank Valve At fuel tank C425
Fuel Injector #1 Top of cylinder #1 C125
Fuel Injector #2 Top of cylinder #2 C126
Fuel Injector #3 Top of cylinder #3 C127
Fuel Injector #4 Top of cylinder #4 C128
Fuel Injector #5 Top of cylinder #5 C129
Fuel Injector #6 Top of cylinder #6 C130
Fuel Injector #7 Top of cylinder #7 C131
Fuel Injector #8 Top of cylinder #8 C132
Fuel Pump Assembly Center of vehicle, at fuel tank C415
Fuel Pump Relay In power distribution box C175
Fuel Rail Cut off Valve Top of engine, on fuel rail C168
Fuel Tank Pressure Sensor Part of fuel pump assembly C301
Function Selector Switch
(Blend Door Potentiometer) Center of I/P near radio C220
Function Selector Switch
(Blower Motor Switch) Center of I/P near radio C218
Function Selector Switch
(Illumination) Center of I/P near radio C219
Function Selector Switch
(Mode Selector Switch) Center of I/P near radio C217
Generator/Voltage Regulator Right front of engine compartment C176, C177
C178
Generic Electronic Module Behind center of I/P C239, C240
C241, C267
Glove Compartment Lamp Right side of I/P behind glove box C211
Headlamp Relay In Regular Production Option (RPO) relay block *
Heated Oxygen Sensor #11 On exhaust pipe of engine C109
Heated Oxygen Sensor #12 On exhaust pipe of engine C184
Heated Oxygen Sensor #21 On exhaust pipe of engine C108
Heated Oxygen Sensor #22 On exhaust pipe of engine C185
High Pitch Horn On right radiator support C136
Horn Relay In power distribution box C175
Idle Air Control Valve Left side of intake manifold C110
Ignition Coil Top of engine C111
Ignition Coil on Plug #1 Near its fuel injector C1011
Ignition Coil on Plug #2 Near its fuel injector C1012
Ignition Coil on Plug #3 Near its fuel injector C1013
Ignition Coil on Plug #4 Near its fuel injector C1014
Ignition Coil on Plug #5 Near its fuel injector C1015
Ignition Coil on Plug #6 Near its fuel injector C1016
Ignition Coil on Plug #7 Near its fuel injector C1017
Ignition Coil on Plug #8 Near its fuel injector C1018
Ignition Coils 1 and 2 Top right side of engine C116
Ignition Coils 3 and 4 Top left side of engine C117
Ignition Cylinder Tamper Switch Inside steering column C235
Ignition Switch Mounted in steering column C250
Inertia Fuel Shut-off Behind right side of I/P C204
Injection Pressure Sensor On top of engine C195
Inline Mini Fuse (2OA) Near generator/voltage regulator *
Instrument Cluster Left side of I/P C236, C237
C238
Intake Air Temperature Sensor On intake manifold C107
Intake Manifold Communicator Control Right side of engine C118
Intake Manifold Runner Control Left side of engine C198
Intake Manifold Runner Position #1 Left side of engine C113
Intake Manifold Runner Position #2 Rear of engine C112
Interior Lamp Relay In junction box fuse/relay panel *
Junction Box Fuse/Relay Panel Under left side of I/P C242, C243
Knock Sensor Right side of engine C103
Left Backup Lamp Left rear corner of vehicle C406
Left Cargo Lamp Rear of vehicle C912
Left Door Ajar Switch Rear of left door C501
Left Door Anti-Theft Switch In left door C505
Left Door Courtesy Lamp In left door interior door panel C502
Left Door Lock Motor Bottom rear of left door C504
Left Door Speaker Front of left door C500
Left Fog Lamp Left front of vehicle C144
Left Front Park/Turn Left front of vehicle C145
Left Front Wheel 4WABS Sensor Left side of engine compartment C153
Left Headlamp Left front corner of vehicle C143
Left License Lamp Rear of vehicle C401
Left Power Door Lock Switch In armrest of left interior door panel C508
Left Power/Signal Mirror Left side of vehicle, on door C507
Left Power Window Motor In left door C506
Left Power Window Switch In armrest of left interior door panel C509, C510
Left Primary Crash Sensor Left front of engine compartment C141
Left Rear Air Spring Solenoid Left rear of vehicle above axle C420
Left Rear Height Sensor Left rear of vehicle C422
Left Rear Speaker Left rear of cab C303
Left Stop/Park/Turn Lamp Left rear corner of vehicle C404
Left Tail/Side Marker Lamp Left rear corner of vehicle C408
Lock Relays Behind right side of I/P *
Low Pitch Horn On right radiator support C137
M5R2 Transmission Under center of vehicle *
Main Light Switch Lower left side of I/P C244, C245
C246
Mass Air Flow Sensor In air cleaner assembly C156
Mega Fuse (Alternator) Right rear of engine compartment,
upper right cowl panel *
Mega Fuse (PDB) Right rear of engine compartment,
upper right cowl panel *
Midship Fuel Tank Valve At mid fuel tank C426
Multi-Function Switch Left side of steering column C258, C259
Natural Gas Vehicle Fuel Tank
Pressure Sensor At fuel tank C418
Natural Gas Vehicle Module Front of engine C197
Natural Gas Vehicle Fuel Tank
Temperature Sensor At fuel tank C417
Natural Gas Vehicle Timer Left rear of engine compartment C196
Octane Adjust (Shorting Bar) Right rear corner of engine C173
One Touch Down Relay In junction box fuse/relay panel *
Output Shaft Speed Sensor Left side of transmission C187
Park Brake Switch Right side of parking brake lever C254
Park Lamp Relay In RPO relay block *
Passenger Air Bag Behind right side of I/P C215
Passenger Air Bag Delete Connector In 14401, near take out to ashtray illumination C255
Passive De-Activation Module Behind right side of I/P C213, C214
Powertrain Control Module Power Diode In power distribution box C175
Powertrain Control Module Power Relay In power distribution box C175
Power Distribution Box Left side of engine compartment C175
Power Distribution Relay Box Left side of engine compartment *
Power Mirror Switch In armrest of left interior door panel C511
Power Seat Control Switch Left side of driver's seat C311
Power Seat Motor Assembly Under driver's seat C308
Powertrain Control Module Right side of engine compartment C174
Premium Sound Amplifier Behind center of I/P C263, C264
Rear Anti-Lock Brake System Data Link
Connector Behind right side of I/P C207
Radio (AM/FM WITH CASSETTE) Behind center of I/P C224, C225
Radio Noise Capacitor #1 Top of engine C115
Radio Noise Capacitor #2 Right front of engine C114
Radio (Premium Sound) Behind center of I/P C261, C262
Rear Air Suspension Compressor
Motor and Vent Solenoid Right front of engine compartment C194
Rear Air Suspension Compressor Relay Left side of engine compartment in the power distribution relay box C175
Rear Air Suspension Data Link
Connector Behind right side of I/P C285
Rear Air Suspension Module Behind center of I/P C276, C277
Rear Air Suspension Service Switch Behind right side of I/P C284
Rear Anti-Lock Brake System Module Behind right side of I/P C222
Rear Anti-Lock Brake System
Proportioning Valve Switch Assembly Left side of engine compartment C152
Rear In-Bed Fuel Tank Valve At fuel tank C424
Red Brake Lamp Warning Relay In power distribution relay box C175
Regular Production Option
(RPO) Relay Block Behind right side of I/P *
Remote Anti-Theft Personality Module Behind left side of I/P C256, C257
Right Air Spring Solenoid Right rear of vehicle C419
Right Backup Lamp Right rear corner of vehicle C407
Right Cargo Lamp Rear top center of cab C913
Right Door Ajar Switch Rear of right door C601
Right Door Anti-Theft Switch In right door C605
Right Door Courtesy Lamp In right door interior door panel C602
Right Door Lock Motor Bottom rear of right door C604
Right Door Speaker Front of right door C600
Right Fog Lamp Right front of vehicle C134
Right Front Park/Turn Lamp Right front of vehicle C135
Right Front Wheel 4WABS Sensor At right front wheel C154
Right Headlamp Right front corner of vehicle C133
Right License Lamp Rear of vehicle C402
Right Power Door Lock Switch In armrest of right interior door panel C608
Right Power/Signal Mirror Right side of vehicle, on door C607
Right Power Window Motor In right door C606
Right Power Window Switch In armrest of right interior door panel C609
Right Primary Crash Sensor Right front of engine compartment C140
Right Rear Door Speaker In right rear door C800
Right Rear Height Sensor Right rear of vehicle C423
Right Rear Air Spring Solenoid Right rear of vehicle C419
Right Rear Speaker Right rear of cab C302
Right Stop/Park/Turn Lamp Right rear corner of vehicle C405
Right Tail/Side Marker Lamp Right rear corner of vehicle C409
Seat Belt Warning Switch In driver's seat belt buckle C304
Shift Lock Actuator In steering column C249
Shift On The Fly Relay In RPO relay block *
Speed Control Servo/Amplifier
Assembly Left side of engine compartment C157
Starter Interrupt Relay In RPO relay block *
Starter Motor Lower right side of engine *
Starter Motor Relay Right rear of engine compartment C166, C167
Throttle Position Sensor Attached to throttle body C123
Trailer Electronic Brake Control Behind left side of I/P C232
Trailer Tow Backup Lamp Relay in power distribution relay box *
Trailer Tow Battery Charge Relay In power distribution relay box C175
Trailer Tow Connector In rear of vehicle C410
Trailer Tow Left Turn Relay In power distribution relay box C175
Trailer Tow Right Turn Relay In power distribution relay box C175
Trailer Tow Running Lamp Relay In power distribution relay box C175
Transfer Case Assembly (Electronic) Mounted on rear of transmission C201
Transfer Case Assembly (Mechanical) Mounted on rear of transmission C260
Transfer Case Electric Clutch Relay In RPO relay block *
Transfer Case Shift Relay Module Behind center of I/P C221
Transmission Control Switch End of transmission selector level C251
Vapor Management Valve Left rear corner of engine compartment C164
Vehicle Speed Sensor Left rear of transmission C186
Washer Pump Assembly In washer reservoir C138
Washer Pump Relay In power distribution box C175
Windshield Wiper Motor Behind center of cowl panel C165
Wiper High/Low Relay In power distribution box C175
Wiper Run/Park Relay In power distribution box C175