CONTROL UNITS/TIMERS
| Component | Location |
|---|---|
| Coolant Level Sensor Unit (Diesel) | Near brake pedal support. |
| Cruise Control Module | On parking brake bracket. |
| Electronic Control Module (Calif.) | Under driver's seat. (Scheme 2) |
| Electronic Spark Control (ESC) Unit | On brake pedal bracket. |
CONTROL UNITS/TIMERS LOCATION
BUZZERS & RELAYS
| Component | Location |
|---|---|
| A/C-Heater Blower Relay | On evaporator case near blower motor. (Scheme 1) |
| Air Diverter Relay | On firewall. (Scheme 4) |
| Choke Relay | In convenience center. (Scheme 3) |
| Diesel Wiring Relay | On left inner frame rail to rear of battery. |
| Glow Plug Relay | On left inner fender panel. |
| Hazard Flasher Relay | In convenience center. (Scheme 3) |
| Headlight/Seat Belt Warning Buzzer | In convenience center. (Scheme 3) |
| Horn Relay | In convenience center. (Scheme 3) |
| Power Door Lock Relay | Under left side of dash. |
| Turn Signal Flasher Relay | In convenience center. (Scheme 3) |
| Wide Open Throttle (WOT) Relay | On right side of firewall. |
BUZZERS & RELAYS LOCATION
MOTORS
| Component | Location |
|---|---|
| A/C-Heater Blower Motor | On right side of firewall. (Scheme 1) |
| Windshield Washer Motor | On washer reservoir. |
| Windshield Wiper Motor | On firewall. |
MOTORS LOCATION
SENDING UNITS/SENSOR
| Component | Location |
|---|---|
| Coolant Sensor | On front of engine. |
| Detonation Sensor | On lower left side of engine block behind starter. |
| Fuel Gauge Sending Unit | On top of fuel tank. |
| Oil Pressure Sensor (4.1L) | On engine above starter. |
| Oil Pressure Sensor (5.0 & 5.7L) | Behind distributor. |
| Oil Pressure Sensor (6.2L) | Or upper front of engine. |
| Oxygen Sensor (6-Cyl.) | In front exhaust pipe. (Scheme 4) |
| Oxygen Sensor (V8) | Or exhaust manifold. (Scheme 4) |
| Throttle Position Sensor | On carburetor. (Scheme 4) |
| Vacuum Sensor | On firewall. (Scheme 4) |
| Vehicle Speed Sensor | Under left side of dash. |
SENDING UNITS/SENSOR LOCATION
SOLENOIDS/SOLENOID VALVES
| Component | Location |
|---|---|
| Air Diverter Solenoid (6-Cyl.) | On front of intake manifold. (Scheme 4) |
| Canister Purge Solenoid | On vapor canister. |
| Cold Advance Solenoid (Diesel) | In fuel injection pump housing cover. |
| EGR Solenoid Valve (6-Cyl.) | On right rear corner. |
| EGR Solenoid Valve (V8) | Or front of engine. |
| Fuel Solenoid (Diesel) | In fuel injection pump housing cover. |
| Mixture Control Solenoid (Calif.) | On carburetor. (Scheme 4) |
| Vacuum Control Solenoid Valve | On intake manifold. |
| Torque Converter Clutch Solenoid | On left side of transmission. (Scheme 4) |
SOLENOIDS/SOLENOID VALVES LOCATION
SWITCHES
| Component | Location |
|---|---|
| A/C Pressure Cycling Switch | On accumulator drier. (Scheme 1) |
| Brake/Stop Light Switch | On brake pedal bracket. |
| Clutch Switch | On clutch pedal bracket. |
| Coolant Temperature Switch (6-Cyl.) | On water outlet. (Scheme 4) |
| Coolant Temperature Switch (V8) | Left rear corner of engine. (Scheme 4) |
| Engine Speed Switch (6-Cyl.) | On right side of engine. |
| Engine Speed Switch (V8) | On left valve cover. |
SWITCHES LOCATION
MISCELLANEOUS COMPONENTS
| Component | Location |
|---|---|
| A/C-Heater Blower Resistor | On evaporator case above relay. (Scheme 1) |
| Assembly Line Data Link | Under driver's seat. (Scheme 2) |
| "CHECK ENGINE" Light Driver | Under driver's seat. (Scheme 2) |
| Convenience Center | Under left side of dash. (Scheme 3) |
| Diagnostic Dwell Meter Connector | On left side of firewall near battery. |
| Fuse Block | Under left side of instrument panel. |
| Power Acc. Circuit Breaker | In fuse block. |
| Rear A/C Circuit Breaker | In fuse block. |
| Speed Control Servo | On bracket on right side of engine. |
MISCELLANEOUS COMPONENTS LOCATION
COMPONENT LOCATION GRAPHICS
Note. Figures may show multiple component locations. Refer to appropriate table for proper figure references.
