Buick LeSabre Limited 1994 - 1994 ELECTRICAL COMPONENT LOCATION Electrical Component Locator

Buick LeSabre Limited 1994 - BUZZERS, RELAYS & TIMERS

Buick LeSabre Limited 1994 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
ABS Main & Pump Relay	On engine compartment relay center, on right side of firewall.
A/C Compressor Relay
3.8L - VIN L	On engine compartment relay center, on right side of firewall. See Fig. 1 .
3.8L - VIN 1	On engine compartment relay center, on right side of firewall. See Fig. 2 .
Blower Motor Relay
3.8L - VIN L	On engine compartment relay center, on right side of firewall. See Fig. 1 .
3.8L - VIN 1	On engine compartment relay center, on right side of firewall. See Fig. 2 .
Cooling Fan Relays
3.8L - VIN L	On engine compartment relay center, on right side of firewall. See Fig. 1 .
3.8L - VIN 1	On engine compartment relay center, on right side of firewall. See Fig. 2 .
Elec. Level Control (ELC) Relay	On engine compartment relay center, on right side of firewall.
Elec. Level Control (ELC) Inflator Timer Relay	On right front of luggage compartment.
Foglight Relays	On passenger compartment relay center, behind right side of dash.
Fuel Door Lock Relay	Behind right side of dash, left of relay center.
Fuel Pump Relay	On passenger compartment relay center, behind right side of dash.
Hazard Flasher Relay	Under left side of dash, on right side of steering column brace.
Horn Relay	On engine compartment relay center, on right side of firewall. See Fig. 3 .
Interior Lights Relay	On passenger compartment relay center, behind right side of dash.
Luggage Compartment Release Relay	On passenger compartment relay center, behind right side of dash.
Main Relay	On engine compartment relay center, on right side of firewall.
Power Antenna Relay	In right side of trunk, attached to antenna mast.
Power Door Lock Relay	Under driver's seat.
Remote Keyless Entry Relay	On passenger compartment relay center, behind right side of dash.
Retained Accessory Power Relay	On passenger compartment relay center, behind right side of dash.
Starter Enable Relay	Behind left side of dash, left of steering column.
Turn Signal Flasher Relay	On left kick panel.

Buick LeSabre Limited 1994 - CIRCUIT PROTECTION DEVICES

Buick LeSabre Limited 1994 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Circuit Breakers	In passenger compartment fuse block.
Convenience Center	Behind left side of dash.
Fuse Block
3.8L - VIN L	Behind left side of dash. See Fig. 1 .
3.8L - VIN 1	Behind left side of dash. See Fig. 2 .
Maxi-Fuse Center
3.8L - VIN L	On engine compartment relay center, on right side of firewall. See Fig. 1 .
3.8L - VIN 1	On engine compartment relay center, on right side of firewall. See Fig. 2 .
Relay Centers
Engine Compartment	On right side of firewall.
Passenger Compartment
3.8L - VIN L	Behind right side of dash. See Fig. 1 .
3.8L - VIN 1	Behind right side of dash. See Fig. 2 .

Buick LeSabre Limited 1994 - CONTROL UNITS

Buick LeSabre Limited 1994 CONTROL UNITS LOCATION

Component	Location
ABS Control Module	Behind center of dash, right of steering column.
A/C-Heater Blower Control Module	On right side of firewall, near blower motor.
Adaptive Light Monitor Module	Behind left side of dash, right of steering column support.
Air Bag System
Inflator Module	In steering wheel pad.
Resistor Module	Behind right side of dash, above fuse/relay block.
Diag. Energy Reserve Module (DERM)	Behind center of I/P, on right side of accelerator pedal. See Fig. 4 .
Chime Module	Behind center of instrument panel, right of steering column.
Electronic Compass Module	Below rear deck shelf.
Headlight Washer Module	Behind washer fluid reservoir.
Head Up Display Control Module	Behind left side of dash.
Heated Windshield
Control Module	Behind right side of front bumper.
Power Module	Behind right of front bumper.
Ignition Module	On top right front of engine.
Lamp Control Module (Buick)	Behind right side of dash, left of glovebox.
Light Control Module (Ex. Buick)	Behind left side of dash, left of steering column.
Low Coolant Level Module	On right side of radiator.
Lumbar Control Module	Under passenger seat.
Multi-Function Chime Module	Behind center of dash.
Oil Level Module	Behind right side of dash.
PASS-Key Decoder Module	Behind right side of dash.
Powertrain Control Module (PCM)
3.8L - VIN L	Behind right side of dash. See Fig. 1 .
3.8L - VIN 1	Behind right side of dash. See Fig. 2 .
Power Seat Control Module	Under driver's seat.
Power Window (Express Down) Module	In center rear of left front door.
Remote Accessory Control Module	Behind right side of dash.
Sun Roof Control Module	On center rear of sun roof, next to sun roof motor.
Wiper Motor Module	On left rear of engine compartment, behind strut tower.

Buick LeSabre Limited 1994 - SENDING UNITS & SENSORS

Buick LeSabre Limited 1994 SENDING UNITS & SENSORS LOCATION

Component	Location
ABS Wheel Sensors	On each wheel hub assembly.
A/C System
Ambient Temperature Sensor	In front of engine compartment, on center of radiator support.
In-Car Temp. Sensor	Behind center of dash.
Pressure Sensor
High Pressure Side	In A/C discharge line, near right shock tower.
Low Pressure Side	In A/C suction line, at right side of firewall.
Sunload Sensor	Under top left of dash.
Air Bag System
Forward Sensor	On radiator top support bracket, in front center of vehicle.
Passenger Compartment	Behind center of dash.
Boost/MAP Sensor (VIN 1)	On rear left of engine, above valve cover.
Camshaft Position Sensor
3.8L - VIN L	On lower right of engine, above crank pulley. See Fig. 1 .
3.8L - VIN 1	On lower right of engine, above crank pulley. See Fig. 2 .
Crankshaft Position Sensor
3.8L - VIN L	Behind right side of crank pulley. See Fig. 1 .
3.8L - VIN 1	Behind right side of crank pulley. See Fig. 2 .
Dual Sensor	Behind center of instrument panel, above plenum.
ELC Height Sensor	Near right rear strut tower or above right rear suspension arm.
Engine Coolant Temp. Sending Unit	On top left rear of engine.
Engine Coolant Temp. (ECT) Sensor
VIN L	On top left rear of engine. See Fig. 1 .
VIN 1	On top rear of engine, beneath throttle body assembly. See Fig. 2 .
Intake Air Temp. (IAT) Sensor
3.8L - VIN L	In air intake duct, on left side of engine compartment. See Fig. 1 .
3.8L - VIN 1	In air intake duct, on left side of engine compartment. See Fig. 2 .
Knock Sensor
3.8L - VIN L	On lower right side of engine, near oil filter. See Fig. 1 .
3.8L - VIN 1	On lower right side of engine, near oil filter. See Fig. 2 .
Low Coolant Sensor	On right side of radiator.
Low Oil Level Sensor	In oil pan, near starter.
Mass Airflow (MAF) Sensor
3.8L - VIN L	In throttle body assembly. See Fig. 1 .
3.8L - VIN 1	In throttle body assembly. See Fig. 2 .
Oil Pressure Sending Unit
VIN L	On lower right front of engine, on oil filter adapter housing. See Fig. 1 .
VIN 1	On lower right rear of engine.
Throttle Position (TP) Sensor
3.8L - VIN L	On throttle body assembly. See Fig. 1 .
3.8L - VIN 1	On throttle body assembly. See Fig. 2 .
Vehicle Speed Sensor (VSS)
VIN L	On lower right front of engine, below oil filter. See Fig. 1 .
VIN 1	On lower right of engine. See Fig. 2 .

Buick LeSabre Limited 1994 - MOTORS

Buick LeSabre Limited 1994 MOTORS LOCATION

Component	Location
ABS Pump Motor	On bottom of master cylinder assembly.
Blower Motor	Near center of firewall, in engine compartment.
Cooling Fan Motor	In front of engine compartment.
Elec. Level Control Compressor	On left inner fender panel, behind headlights.
Fuel Door Lock Motor	On left side of luggage compartment, above wheel housing.
Power Antenna Motor	On right side of luggage compartment.
Power Door Lock Motor	In rear of each door.
Power Seat Motors	Below front portion of front seats.
Power Seat Recliner Motor	In seat bottom frame.
Power Window Motors	In lower center of each door.
Sun Roof Motor	On center rear of sun roof.
Windshield Wiper Motor	At left rear corner of engine compartment.

Buick LeSabre Limited 1994 - SOLENOIDS & SOLENOID VALVES

Buick LeSabre Limited 1994 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Canister Purge Solenoid
3.8L - VIN L	On vapor canister, on left front corner of engine compartment. See Fig. 1 .
3.8L - VIN 1	On vapor canister, on left front corner of engine compartment. See Fig. 2 .
Boost Control Solenoid (VIN 1)	On top rear left of engine. See Fig. 2 .
Elec. Level Control Inflator Solenoid	In right front corner of luggage compartment.
Electronic Power Steering Sol. (VIN 1)	On lower right rear of engine.
EGR Solenoid	On top left rear of engine. See Fig. 2 .
Fuel Door Release Solenoid	In left side of luggage compartment, near fuel door.
Idle Air Control (IAC) Valve
3.8L - VIN L	On throttle body assembly. See Fig. 1 .
3.8L - VIN 1	On throttle body assembly. See Fig. 2 .
Luggage Compartment Lid Release Solenoid	Under side of luggage compartment lid, near latch.
Power Seat Solenoid	Under each front seat.
Shift Interlock Solenoid
Column Shifter	On underside of steering column, near mounting bracket.
Console Shifter	Under center console, behind shift lever base.
TFE Steering Solenoid	On lower right rear of engine, above oil filter.

Buick LeSabre Limited 1994 - SWITCHES

Buick LeSabre Limited 1994 SWITCHES LOCATION

Component	Location
A/C Pressure Cycling Switch	On A/C accumulator.
A/C Pressure Switch
3.8L - VIN L	On A/C line, behind A/C compressor. See Fig. 1 .
3.8L - VIN 1	On A/C line, behind A/C compressor. See Fig. 2 .
Brake Fluid Level Switch	In master cylinder fluid reservoir.
Brake/Cruise/Shift Interlock Switch	On brake pedal support.
Ignition Key Warning Switch	On top of steering column, below turn switch.
Parking Brake Switch	On top of parking brake pedal assembly.
Power Steering Pressure Switch	On power steering rack.
Safety Belt Switch	In base of left center pillar.
Transaxle Fluid Temp. Switch	On left side of engine, in transaxle assembly.
Transaxle Position Switch
3.8L - VIN L	On top right side of transaxle. See Fig. 1 .
3.8L - VIN 1	On top right side of transaxle. See Fig. 2 .
Washer Fluid Level Switch	In washer fluid reservoir.

Buick LeSabre Limited 1994 - MISCELLANEOUS

Buick LeSabre Limited 1994 MISCELLANEOUS LOCATION

Component	Location
ABS Diode	In ABS wiring harness, near ABS control module.
A/C Compressor Clutch Diode	On wiring harness, near A/C compressor.
Blower Motor Resistors	On right side of engine compartment, in blower housing.
Brake Warning Diode	On wiring harness, behind center of dash.
Cooling Fan Resistors	On fan support frame, behind radiator.
Data Link Connector (DLC)
3.8L - VIN L	Under left side of dash, to right of steering column. See Fig. 1 .
3.8L - VIN 1	Under left side of dash, to right of steering column. See Fig. 2 .
DRL Resistor	On left front inner fender panel.
Fuel Pump Test Connector
3.8L - VIN L	Taped to wiring harness, on right front of engine compartment. See Fig. 1 .
3.8L - VIN 1	Taped to wiring harness, on right front of engine compartment. See Fig. 2 .
Twilight Sentinel/DRL Photocell	On top left of dash.