Buick Skylark Custom 1994 - ELECTRICAL COMPONENT LOCATOR 1994 ELEC COMPONENT LOCATION General Motors Corp. - Electrical Component Location

Buick Skylark Custom 1994 - BUZZERS, RELAYS & TIMERS

Buick Skylark Custom 1994 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
ABS Relay	On firewall, near ABS control module.
A/C Compressor Relay
2.3L	On relay bracket, on right front strut tower. See Fig. 1.
3.1L	On relay bracket, on right front strut tower. See Fig. 2.
Automatic Door Lock Relay	Behind left side of dash, near steering column.
Blower Fan Relay	On relay bracket, on right front strut tower.
Cooling Fan Relay
2.3L	On relay bracket, on right front strut tower. See Fig. 1.
3.1L	On relay bracket, on right front strut tower. See Fig. 2.
Foglight Relay	On left inner fender panel.
Fuel Pump Relay
2.3L	On relay bracket, on right front strut tower. See Fig. 1.
3.1L	On relay bracket, on right front strut tower. See Fig. 2.
Hazard Flasher Relay
Achieva & Skylark	In convenience center, behind left side of dash.
Grand Am	Behind center of dash, behind radio.
Horn Relay	In convenience center, behind left side of dash.
Power Antenna Relay	On antenna motor, on right side of luggage compartment.
Rear Window Defogger Relay	Behind left side of dash, right of steering column.
Turn Signal Flasher Relay	Behind left side of dash, above and behind fuse panel, clipped to panel. See Fig. 3

Buick Skylark Custom 1994 - CIRCUIT PROTECTION DEVICES

Buick Skylark Custom 1994 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Circuit Breakers	On fuse block.
Convenience Center (Achieva & Skylark)	Behind left side of dash, above fuse block.
Fuse Block
2.3L	Under left side of dash, left of steering column. See Fig. 1.
3.1L	Under left side of dash, left of steering column. See Fig. 2.
Fusible Links	At starter solenoid.

Buick Skylark Custom 1994 - CONTROL UNITS

Buick Skylark Custom 1994 CONTROL UNITS LOCATION

Component	Location
ABS Control Module	On center of engine compartment firewall.
ABS Warning Light Module	Behind left side of dash, near fuse block.
Air Bag Control Module	Behind right kick panel.
Antenna/Rear Defogger Module	On top center of rear shelf.
Automatic Door Lock Control Module	Behind right side of dash, left of glove compartment.
Cruise Control Module	Behind right side of dash, above glove box.
Daytime Running Lights (DRL) Module	Behind right side of dash, above glove compartment.
Electronic Ignition (EI) Module
2.3L	Under rocker cover. See Fig. 1.
3.1L	On top of right rocker cover. See Fig. 2.
Light Dimmer Module	Behind left side of dash, on right side of steering column bracket.
Multi-Function Alarm Module	Behind left side of dash, on convenience center.
Power Window Control Module	Behind left side of dash, near steering column.
Powertrain Control Module (PCM)
2.3L	Behind right side of dash. See Fig. 1.
3.1L	Behind right side of dash. See Fig. 2.
PRNDL Control Module	Under center console, at gear selector.
Remote Keyless Entry Module	In luggage compartment, above left wheelwell.

Buick Skylark Custom 1994 - SENDING UNITS & SENSORS

Buick Skylark Custom 1994 SENDING UNITS & SENSORS LOCATION

Component	Location
ABS Wheel Speed Sensors	On each wheel hub assembly.
A/C Pressure Sensor
2.3L	On right front of engine compartment, on A/C line. See Fig. 1.
3.1L	On right front of engine compartment, on A/C line. See Fig. 2.
Air Bag System
Arming Sensor	Behind right side of dash.
Discriminating Sensors
Forward	On right front of engine compartment, near headlight.
Passenger Compartment	Under center console.
Camshaft Position Sensor (3.1L)	On upper left front of engine, behind alternator. See Fig. 2.
Crankshaft Position Sensor
2.3L	On left side of engine, near oil filter.
3.1L	On lower right of engine, under exhaust manifold. See Fig. 2.
Engine Coolant Temp. (ECT) Sensor
2.3L	At flywheel end of engine, near coolant outlet. See Fig. 1.
3.1L	On upper right rear of engine, near exhaust manifold. See Fig. 2.
Engine Coolant Temperature (ECT) Sending Unit	On left front side of engine, near ECT sensor.
Fuel Pump Switch/Oil Pressure Sender
2.3L	On left rear of cylinder head.
3.1L	On left front of cylinder block, near knock sensor.
Intake Air Temperature (IAT) Sensor
2.3L	On left rear of engine, near MAP sensor. See Fig. 1.
3.1L	On rear of engine, in fresh air intake tube. See Fig. 2.
Knock Sensor
2.3L	On left rear of cylinder block, near transaxle. See Fig. 1.
3.1L	On left front of engine, near fuel pump/oil pressure switch. See Fig. 2.
Manifold Absolute Pressure (MAP) Sensor
2.3L	On top right of engine. See Fig. 1.
3.1L	On top right of engine. See Fig. 2.
Throttle Position (TP) Sensor
2.3L	On throttle body assembly. See Fig. 1.
3.1L	On throttle body assembly. See Fig. 2.
Vehicle Speed Sensor (VSS)
2.3L	On top rear of transaxle housing. See Fig. 1.
3.1L	On top rear of transaxle housing. See Fig. 2.

Buick Skylark Custom 1994 - MOTORS

Buick Skylark Custom 1994 MOTORS LOCATION

Component	Location
ABS Actuator Motor	On left side of engine compartment, under master cylinder.
Blower Motor	At right side of firewall, in engine compartment.
Power Antenna Motor	At base of antenna, on right side of luggage compartment.
Power Door Lock Motor	One in each door.
Power Mirror Motor	In each mirror assembly.
Power Seat Motor	Under each front seat.
Power Window Motor	One in each door.
Windshield Washer Motor	On left front of engine compartment, behind headlight.
Windshield Wiper Motor	On left side of firewall, in engine compartment.

Buick Skylark Custom 1994 - SOLENOIDS & SOLENOID VALVES

Buick Skylark Custom 1994 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
ABS Solenoids (2)	On ABS unit, below brake master cylinder.
Brake-Transaxle Shift Interlock (BTSI) Solenoid	Behind left side of dash, left of steering column.
Canister Purge Solenoid
2.3L	On upper right front top of engine. See Fig. 1.
3.1L	On upper right front top of engine. See Fig. 2.
EGR Solenoid (3.1L)	On right rear of engine, near throttle body.
Torque Converter Clutch (TCC) Solenoid	In transaxle valve body.
Idle Air Control (IAC) Valve
2.3L	On throttle body assembly. See Fig. 1.
3.1L	On throttle body assembly. See Fig. 2.
Lap Belt Retractor Solenoid	Inside each front door.
Shoulder Belt Retractor Solenoid	Inside each front door.

Buick Skylark Custom 1994 - SWITCHES

Buick Skylark Custom 1994 SWITCHES LOCATION

Component	Location
Back-Up Light Switch	On top of transaxle.
Brake Fluid Level Switch	In brake master cylinder reservoir.
Brake/Stoplight Switch	On brake pedal support bracket.
Clutch/Cruise/Start Switch	On clutch pedal support.
Coolant Level Switch	In coolant reservoir.
Door Ajar Switch	One in each door jamb.
Fuel Pump Switch/Oil Pressure Sender
2.3L	On left rear of cylinder head.
3.1L	On left front of cylinder block, near knock sensor.
Gear Selector Switch (A/T)	In console, at base of shifter lever.
Oil Level Switch	In oil pan.
Park/Neutral (P/N) Switch
2.3L	On right rear of transaxle. See Fig. 1.
3.1L	On right rear of transaxle. See Fig. 2.
Parking Brake Switch	At base of parking brake pedal.
Power Steering Press. (PSP) Switch	On power steering pump.
Seat Belt Switch	In driver's seat belt buckle assembly.
Windshield Washer Fluid Level Switch	In windshield washer fluid reservoir.

Buick Skylark Custom 1994 - MISCELLANEOUS

Buick Skylark Custom 1994 MISCELLANEOUS LOCATION

Component	Location
A/C Clutch Diode
2.3L	In A/C compressor clutch harness connector, above oil filter.
3.1L	In wiring harness, above A/C compressor.
Blower Motor Resistor	On blower motor housing, near center of firewall.
Crankcase Ventilation Heater (2.3L)	On left rear of engine. See Fig. 1.
Data Link Connector (DLC)
2.3L	On left side of dash, below steering column. See Fig. 1.
3.1L	On left side of dash, below steering column. See Fig. 2.
DRL Photo Resistor	On center of dash pad.
Fuel Pump Prime/Test Connector
2.3L	Behind left shock tower, taped to wiring harness. See Fig. 1.
3.1L	Behind left shock tower, taped to wiring harness. See Fig. 2.