A-Z Component List

Component Location Connector
* Denotes Information Not Available

4R44E/5R55E LH side of transmission C1OO6
4 Wheel Anti-Lock Brake System
Hydraulic Unit LH side of engine compartment C145, C146
4 Wheel Anti-Lock Brake System
Main Relay In relay box #3 *
4 Wheel Anti-Lock Brake System
Module LH front of engine compartment C154
4 Wheel Anti-Lock Brake System
Pump Motor Relay In relay box #3 *
4 Wheel Anti-Lock Brake System
Diode In engine compartment fuse/relay box *
4WD Mode Switch Center of I/P C225 *
4x4 Indicator Switch Top front of transfer case assembly C1313
A/C Clutch Cycling Pressure Switch RH rear of engine compartment, on A/C
accumulator C162
A/C Clutch Diode LH front of engine compartment, taped
in harness, near A/C clutch field coil *
A/C Clutch Field Coil Top LH front of engine, part of A/C
compressor assembly C166
A/C Pressure Cutoff Switch LH front of engine, on A/C line C167
A/C-Heater Control Assembly Center of I/P, above ashtray assembly C231, C234
Acceleration Sensor Underside of vehicle, on inside of left
frame rail C1008
Air Bag Diagnostic Monitor Behind RH side of cowl panel C250, C251
All Lock Relay In relay box #1 *
All Unlock Relay In relay *
Amplifier RH rear of cab C414, C415
Anti-Theft Hood Switch RH side of engine compartment, on upper
fender apron C160
Auxiliary Power Socket #1 Under center of Instrument Panel (I/P) C235
Auxiliary Power Socket #2 Near Take Out (T/O) to rear anti-lock brake system C248
module
Backup Lamp Switch Top LH side of transmission C1012
Battery LH front of engine compartment *
Battery Saver Relay In relay box #1 *
Blend Door Actuator Behind RH side of I/P C240
Blower Motor RH rear of engine compartment, on safety
wall C161
Blower Motor Relay In relay box #2 *
Blower Motor Resistor Assembly RH rear of engine compartment, near
blower motor C163
Brake Fluid Level Switch LH rear of engine compartment, on brake
fluid reservoir C137
Brake On/Off Switch Behind LH side of I/P, on brake pedal
support C210
Brake Pressure Switch LH side of engine compartment C138
Camshaft Position Sensor
(2.3L) LH front of engine, behind oil pump pulley C123
Camshaft Position Sensor
(3.0L,4.0L) Top rear of engine C123
Central Timer Module Behind center of I/P C221, C224
Central Timer Module
Diagnostic Connector Behind I/P, bottom of steering wheel C220
Compact Disc Changer Rear of cab C413
Cigar Lighter Behind lower center of I/P, in ashtray
assembly C226, C227
Clockspring Assembly Top of steering column C218, C219.
Clutch Pedal Position Switch Behind LH side of I/P, top of clutch
pedal support C206
Clutch Pedal Position Switch
Jumper Behind LH side of I/P, left of steering
column C206
Crankshaft Position Sensor
(2.3L) Lower RH front of engine C100
Crankshaft Position (CKP) Sensor
(3.0L,4.0L) Lower front of engine C100
Data Link Connector
(2.3L) Fastened to bottom of I/P, near steering
column C209
Data Link Connector
(3.0L,4.0L) Fastened to bottom of I/P right of
steering column C209
Daytime Running Lamps (DRL) Module LH side of lower radiator support C150
Differential Pressure Feedback EGR
Sensor (2.3L) RH rear of engine, on lifting eye
Differential Pressure Feedback EGR
Sensor (3.0L,4.0L) LH side of engine C108
Digital Transmission Range
Sensor LH side of transmission C1005
Dome Lamp Center of rear window header C902
Dome/Map Lamp Center of rear window header C901
Driver's Air Bag In center of steering wheel
Driver's Unlock Relay Behind RH side of I/P C237
EGR Vacuum Regulator Solenoid
(2.3L,3.0L) RH side of engine C104
EGR Vacuum Regulator Solenoid
(4.0L) LH rear of engine C104
Electric Shift Control Module Behind center of I/P C230
Electric Shift Relay In relay box #1
Engine Compartment Fuse/Relay Box LH rear of engine compartment C173
Engine Compartment Lamp LH under side of hood C133
Engine Coolant Temperature
Sensor(2.3L) Top RH front of engine, in water outlet tube C101
Engine Coolant Temperature
Sensor (3.0L,4.0L) Top front of engine C101
Engine Coolant Temperature Sender
(2.3L) LH rear of engine, below oil pressure
sender C170
Engine Coolant Temperature Sender
(3.0L) Top RH front of engine, near thermostat
housing C170
Engine Coolant Temperature Sender
(4.0L) Top LH front of engine C170
Engine Oil Pressure Switch (2.3L) LH rear of cylinder head C171
Engine Oil Pressure Switch (3.0L) RH rear of engine C171
Engine Oil Pressure Switch (4.0L) Lower LH front of engine C171
Evaporative Emissions Canister
Purge Solenoid LH front of engine compartment C142
Flasher Behind LH side of I/P, on fuse panel C211
Fog Lamp Relay (3.0L,4.0L) In engine compartment fuse/relay box *
Fog Lamp Switch LH side of I/P C236
Fuel Injector #1 Top of no. 1 cylinder C117
Fuel Injector #2 Top of no. 2 cylinder C118
Fuel Injector #3 Top of no. 3 cylinder C119
Fuel Injector #4 Top of no. 4 cylinder C120
Fuel Injector #5 (3.0L,4.0L) Top of no. 5 cylinder C121
Fuel Injector #6 (3.0L,4.0L) Top of no. 6 cylinder C122
Fuel Pump Module Below rear of vehicle, top center of
fuel tank C1009
Fuel Pump Relay In engine compartment fuse/relay box *
Fuse Link A LH fender apron, at starter relay *
Generator/Voltage Regulator RH front of engine C168, C169,
C177
Generic Electronic Module Behind center of I/P, C221, C222,
C223, C224
Glove Box Lamp And Switch Behind RH side of I/P, in glove box C241
Heated Oxygen Sensor #1
(2.3L) Lower RH side of engine, in exhaust pipe,
before catalytic converter C113
Heated Oxygen Sensor #1
(3.0L) Lower RH rear of engine compartment,
in exhaust C126
Heated Oxygen Sensor #1
(4.0L) Lower RH rear of engine, in exhaust C126
Heated Oxygen Sensor (HO2S) #2
(2.3L) Lower RH side of engine, in exhaust pipe,
beyond catalytic converter C1003
Heated Oxygen Sensor #2
(3.0L) Lower LH rear of engine compartment,
in exhaust C1003
Heated Oxygen Sensor #2
(4.0L) Lower LH rear of engine, in exhaust C1003
Heated Oxygen Sensor #3
(3.0L,4.0L) Near RH side of transmission, in exhaust C1004
Heater Control Assembly Center of I/P, above ashtray assembly C232, C234
High Pitch Horn Lower LH front corner of engine compartment C149
Horn Relay In engine compartment fuse/relay box *
Horn Switches On steering wheel *
Instrument Panel Fuse Panel Behind LH side of I/P *
Idle Air Control Valve (2.3L) Top RH rear of engine C109
Idle Air Control Valve (3.0L) Top LH front of engine C109
Idle Air Control Valve (4.0L) Top LH rear of engine C109
Ignition Coil (3.0L) Top RH side of engine C127
Ignition Coil (4.0L) Top RH rear of engine C127
Ignition Key Warning Switch Top of steering column, part of ignition
switch assembly *
Ignition Switch LH side of steering column C213
Ignition Tamper Switch On steering column, at ignition switch C217
Inertia Fuel Shut-Off Below RH side of I/P, below glove box C249
Instrument Cluster Top LH side of I/P C214, C216
Instrument Illumination Dimming Module Top LH side of I/P C204
Intake Air Temperature Sensor
(2.3L,3.0L) RH side of engine compartment, on air
intake assembly C106
Intake Air Temperature Sensor
(4.0L) Front of engine, on air intake assembly C106
Interior Lamp Relay In relay box #1 *
Left Backup Lamp LH rear of vehicle C401
Left Door Ajar Switch In rear of LH door C506
Left Door Disarm Switch In rear of LH door C507
Left Door Lock Motor In rear of LH door C505
Left Door Lock Switch Center of LH door C503
Left Door Speaker Front of LH door C501
Left Fog Lamp (3.0L,4.0L) LH front of vehicle C152
Left Front Park/Turn Lamp Front of vehicle, on left side C148
Left Front Wheel Speed Sensor At left front wheel C151
Left Headlamp Front of vehicle, on left side C147
Left Illuminated entry Switch Rear of LH door C508
Left License Lamp Center rear of vehicle C411
Left Power Lumbar Motor Under front of LH front seat assembly C306
Left Power Lumbar Switch LH side of driver's front seat C305
Left Power Mirror On front of left door C500
Left Power Window Motor Lower center of LH door C504
Left Primary Crash Sensor Left front of vehicle, on LH front of
lower radiator support C153
Left Rear Park/Stop Lamp LH rear of vehicle C400
Left Rear Speaker (Regular Cab) Behind LH front seat C407
Left Rear Speaker (Supercab) LH rear of cab C407
Left Rear Turn Lamp LH rear of vehicle C402
Left Seat Control Switch LH side of driver's seat C310
Low Pitch Horn Lower LH front corner of engine compartment C125
Main Light Switch LH side of I/P C205
Mass Air Flow Sensor RH side of engine compartment, within air
cleaner assembly C105
Master Window Control Switch Center of LH door C502
Multi-Function Switch Top LH side of steering column C253, C254
Octane Adjust (Shorting Bar) Center of engine compartment, near Powertrain
Control Module C110
One Touch Down Relay Module In relay box #1
Output Shaft Speed Sensor Near digital transmission sensor C176
Outside Cargo/High Mount Stop Lamp Top center of rear window header C900
Overdrive Drum Speed Sensor Near digital transmission sensor C175
Park Brake Switch Below LH side of I/P on park brake
assembly C202
Park Lamps Relay In relay box #1 *
Passive De-activation (PAD) Module Behind center of I/P C256, C257
Passenger's Air Bag Behind RH side of I/P C242
Powertrain Control Module
Power Diode In engine compartment fuse/relay box *
Powertrain Control Module Power
Relay In engine compartment fuse/relay box *
Power Mirror Switch In left door panel C509
Power Seat Motor Underside of driver's seat C311
Power Steering Pressure Switch LH front of engine compartment C144
Power Steering Pressure Switch
Jumper LH front of engine compartment C144
Power Window Relay Under RH side of I/P C239
Powertrain Control Module RH Rear of engine compartment, through
safety wall C111
Primary Coil Top RH side of engine C107
Purge Flow Sensor (2.3L) LH front of engine compartment C143
Rear Anti-Lock Brake System
Diode (2.3L,3.0L) In engine compartment fuse/relay box *
Rear Anti-Lock Brake System Test
Connector (2.3L,3.0L) LH rear of engine compartment, on rear
of engine compartment fuse/relay box C141
Rear Anti-Lock Brake System Test
Connector Behind RH side of I/P C244
Rear Anti-Lock Brake System Resistor
(2.3L,3.0L) In engine compartment fuse/relay box *
Radio Center of I/P C228, C229,
C243
Radio Noise Capacitor (2.3L) Top RH front of engine, near secondary
coil (RH) C103
Radio Noise Capacitor (3.0L,4.0L) RH side of engine, near ignition coil C103
Rear Anti-Lock Brake System
Module Behind lower center of I/P, LH side
of ashtray assembly C238
Rear Anti-Lock Brake System
Proportioning Valve Switch Assembly Below LH side of vehicle, on inside
of LH frame rail C1011
Rear Axle Sensor Top of rear differential C1010
Relay Box #1 Behind I/P, right of steering column *
Relay Box #2 RH front of engine compartment *
Relay Box #3 LH rear of engine compartment *
Remote Anti-Theft Personality
Module LH rear corner of cab C409, C410
Right Backup Lamp RH rear of vehicle C405
Right Door Ajar Switch In rear of RH door C606
Right Door Disarm Switch In rear of RH door C607
Right Door Lock Motor In rear of RH door C605
Right Door Lock Switch Center of RH door C603
Right Door Speaker Front of RH door C601
Right Fog Lamp (3.0L,4.0L) RH front of vehicle C159
Right Front Park/Turn Lamp Front of vehicle, on right side C156
Right Front Wheel Speed Sensor At RH front wheel C158
Right Headlamp Front of vehicle, on right side C155
Right Illuminated Entry Switch Rear of RH door C608
Right License Lamp Center rear of vehicle C412
Right Power Lumbar Motor Under front of RH front seat assembly C308
Right Power Lumbar Switch On lower RH side of RH front seat C307
Right Power Mirror On front of right door C600
Right Power Window Motor In lower center of RH door C604
Right Primary Crash Sensor Right front of vehicle, on RH front
side of lower radiator support C157
Right Rear Park/Stop Lamp RH rear of vehicle, on right side C404
Right Rear Speaker (Regular Cab) Behind RH front seat *
Right Rear Speaker (Super cab) RH rear of cab *
Right Rear Turn Lamp RH rear of vehicle, on right side C406
Right Window Switch Center of RH door C602
Seat Belt Switch Inside LH front seat belt buckle assembly C303
Secondary Coil Top RH front of engine C102
Shift Lock Actuator On upper steering column C212
Speed Control Servo/Amplifier Assembly RH rear of engine compartment C165
Speed Control Switch Assembly On steering wheel *
Starter Interrupt Relay In relay box #1 *
Starter Motor/Solenoid Lower RH rear of engine *
Starter Relay LH fender apron, near battery C174, C178
Tachometer Test Connector LH rear of engine compartment, on engine
compartment fuse/relay box C140
Throttle Position Sensor (2.3L) Top RH side of engine, on throttle body C112
Throttle Position Sensor (3.0L,4.0L) Top LH front of engine, on throttle
body C112
Transfer Case Assembly Below vehicle, behind transmission C1001
Transmission Control Switch On end of transmission selector lever C207
Vehicle Speed Sensor (4X2) LH rear of transmission C1002
Vehicle Speed Sensor (4x4) LH rear of transfer case C1002
Washer Pump Relay In relay box #2 *
Wide Open Throttle A/C Cutoff Relay In engine compartment fuse/relay box *
Windshield Washer Pump RH rear of engine compartment, on windshield
washer fluid reservoir C164
Windshield Wiper Motor Top LH center of safety wall C131
Wiper High-Low Relay In engine compartment fuse/relay box *
Wiper Run/Park Relay In engine compartment fuse/relay box *