Buick Century Custom 1992 - ELECTRICAL COMPONENT LOCATOR 1992 GENERAL MOTORS General Motors Corp. - Electrical Component Location

Buick Century Custom 1992 - BUZZERS, RELAYS & TIMERS

Buick Century Custom 1992 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Compressor Relay
2.5L (VIN R)	On relay bracket, at right front corner of engine compartment. See Fig. 1 .
3.3L (VIN N)	On relay bracket, at right front corner of engine compartment. See Fig. 2 .
Blower Motor Relay (3.3L VIN N)	On relay bracket, at right front corner of engine compartment. See Fig. 2 .
Cooling Fan Relay
2.5L (VIN R)	On relay bracket, at right front corner of engine compartment. See Fig. 1 .
3.3L (VIN N)	On relay bracket, at right front corner of engine compartment. See Fig. 2 .
Fuel Pump Relay
2.5L (VIN R)	On relay bracket, at right front corner of engine compartment. See Fig. 1 .
3.3L (VIN N)	On relay bracket, at right front corner of engine compartment. See Fig. 2 .
Hazard Flasher Relay	On convenience center.
Horn Relay	On convenience center.
Power Antenna Relay	Behind right side of dash, above glove compartment.
Power Door Lock Relay	At top of right kick panel.
Tailgate Release Relay	Behind right side of dash, at center of glove box.
Turn Signal Flasher Relay	Behind right side of dash, behind fuse block.

Buick Century Custom 1992 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Auto. Seat Belt In-Line Fuse	Behind right side of dash, taped on harness, near fuse block.
Convenience Center	Behind right side of dash.
ECM/Fuel Pump Fuse
2.5L (VIN R)	On relay bracket, at right front corner of engine compartment. See Fig. 1 .
3.3L (VIN N)	On relay bracket, at right front corner of engine compartment. See Fig. 2 .
Fuse Block
2.5L (VIN R)	Behind right side of dash, to left of glove box. See Fig. 1 .
3.3L (VIN N)	Behind right side of dash, to left of glove box. See Fig. 2 .
Fusible Links
2.5L
"A" (Rust) Blower & Cooling Fan	At starter solenoid.
"B" (Rust) Accessories/Fuse Block	On battery positive terminal pigtail.
"C" (Black) Ignition	On battery positive terminal pigtail.
"D" (Rust) Fuel Pump In-Line Fuse	At starter solenoid.
"E" (Blue) Alternator	At starter solenoid.
3.3L
"A" (Rust) Blower & Cooling Fan	At starter solenoid.
"B" (Rust) Accessories/Fuse Block	On battery positive terminal pigtail.
"C" (Black) Fuse Block	On battery positive terminal pigtail.
"D" (Rust) Alternator & Fuel Pump	At starter solenoid.
"E" (Blue) Alternator	At starter solenoid.
Multi-Function Alarm In-Line Fuse	Behind fuse block.
Power Accessory Circuit Breaker	In fuse block.
Power Window Circuit Breaker	In fuse block.

Buick Century Custom 1992 CONTROL UNITS LOCATION

Component	Location
Cruise Control Module	Behind dash, above accelerator pedal.
C(3)I Ignition Module (3.3L VIN N)	On top right front of engine, on valve cover. See Fig. 2 .
Daytime Running Lights (DRL) Module	Behind left side of dash, below speaker.
DIS Ignition Module (2.5L VIN R)	On left rear of engine, above transaxle. See Fig. 1 .
Electronic Control Module (ECM)
2.5L (VIN R)	Behind right side of dash, behind glove box. See Fig. 1 .
3.3L (VIN N)	Behind right side of dash, behind glove box. See Fig. 2 .
Multi-Function Alarm Module	In convenience center.
Power Window Control Module	Behind left side of dash, above kick panel.
Remote Keyless Entry Module	On left front of luggage compartment, above wheelwell.
Steering Wheel Controls
Switch & Electronics Module	Attached to underside of steering column.
Translator Module	Attached to underside of steering column.

Buick Century Custom 1992 SENDING UNITS & SENSORS LOCATION

Component	Location
Coolant Temperature Sending Unit
2.5L	In cylinder head, in front of coolant outlet.
3.3L	Under alternator, to left of coolant temperature sensor.
Coolant Temperature Sensor (CTS)
2.5L (VIN R)	On left rear of engine, below coolant outlet. See Fig. 1 .
3.3L (VIN N)	On right side of engine, under alternator. See Fig. 2 .
Dual Crank Sensor (3.3L VIN N)	On right side of engine block. See Fig. 2 .
Knock Sensor (3.3L VIN N)	At lower right rear of engine block. See Fig. 2 .
Man. Absolute Press. (MAP) Sensor
2.5L (VIN R)	On air cleaner assembly. See Fig. 1 .
2.5L (VIN R)	In intake runner, in front of throttle body. See Fig. 1 .
Mass Airflow (MAF) Sensor (3.3L VIN N)	On throttle body assembly. See Fig. 2 .
Throttle Position Sensor (TPS)
2.5L (VIN R)	On throttle body assembly. See Fig. 1 .
3.3L (VIN N)	On throttle body assembly. See Fig. 2 .
Vehicle Speed Sensor (VSS)
2.5L (VIN R)	On top right side of transaxle. See Fig. 1 .
3.3L (VIN N)	On top right side of transaxle. See Fig. 2 .

Buick Century Custom 1992 MOTORS LOCATION

Component	Location
Blower Motor	On right side of firewall.
Idle Air Control (IAC) Motor
2.5L (VIN R)	On throttle body assembly. See Fig. 1 .
3.3L (VIN N)	On throttle body assembly. See Fig. 2 .
Power Antenna Motor	At base of antenna assembly.
Power Door Lock Motor	Near lower rear portion of each door.
Power Mirror Motor	In each mirror assembly.
Power Seat Motor	Under seat assembly.
Power Window Motor	In each door.
Windshield Washer Motor (Front & Rear)	In washer fluid reservoir.
Windshield Wiper Motor
Front	On left rear of engine compartment, near brake master cylinder.
Rear	On top center of tailgate.

Buick Century Custom 1992 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Automatic Seat Belt
Lap Retractor Release Solenoid	In lower rear of respective front door.
Shoulder Retractor Release Solenoid	In lower rear of respective front door.
Canister Purge Solenoid (3.3L VIN N)	On vapor canister. See Fig. 2 .
Tailgate Release Solenoid (Wagon)	In lower left side of tailgate.
Trunk Lid Release Solenoid	On trunk lid latch assembly.

Buick Century Custom 1992 SWITCHES LOCATION

Component	Location
A/C High Pressure Cut-Out Switch (2.5L VIN R)	At rear of compressor. See Fig. 1 .
A/C Low Pressure Cut-Out Switch
2.5L (VIN R)	At rear of compressor. See Fig. 1 .
3.3L (VIN N)	On A/C accumulator. See Fig. 2 .
Brake/Cruise/TCC Switch	On brake pedal support bracket.
Brake Fluid Level Switch	In brake fluid reservoir.
Fuel Pump/Oil Pressure Sender Switch
2.5L	On rear of engine, to right of DIS module.
3.3L	On lower left rear of engine, above oil filter.
Park/Neutral (P/N) Switch
2.5L (VIN R)	On top left side of transaxle. See Fig. 1 .
3.3L (VIN N)	On top left side of transaxle. See Fig. 2 .
Parking Brake Switch	On parking brake assembly.
Power Steering Pressure Switch (PSPS)
2.5L (VIN R)	On lower right rear of engine, in power steering line. See Fig. 1 .
3.3L (VIN N)	On lower right rear of engine, in power steering line. See Fig. 2 .
Seat Belt Switch	On driver's seat belt assembly.
Tailgate Ajar Switch (Wagon)	Bottom center of tailgate.
Transaxle Position Switch	On top rear left of transaxle.

Buick Century Custom 1992 MISCELLANEOUS LOCATION

Component	Location
A/C Compressor Diode
2.5L	In compressor wiring connector, below alternator.
3.3L	In compressor wiring, below A/C compressor.
ALDL Diagnostic Connector
2.5L (VIN R)	Under left side of dash, near steering column. See Fig. 1 .
3.3L (VIN N)	Under left side of dash, near steering column. See Fig. 2 .
Blower Motor Resistors	In blower fan housing, in engine compartment.
DRL Diode	Behind center of dash, above A/C control.
DRL Photoresistor	On top center of dash.
Fuel Pump Prime/Test Connector
2.5L (VIN R)	On relay bracket, on right side of engine compartment. See Fig. 1 .
3.3L (VIN N)	On relay bracket, on right side of engine compartment. See Fig. 2 .
Power Seat Capacitors	In wiring harness, under respective front seats.