Buick Century Limited 1993 - ELECTRICAL COMPONENT LOCATOR 1993 ELECTRICAL COMPONENT LOCATIONS General Motors Co. - Electrical Components

Buick Century Limited 1993 - BUZZERS, RELAYS & TIMERS

Buick Century Limited 1993 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Compressor Relay
2.2L (VIN 4)	In right front corner of engine compartment, on relay bracket. See Fig. 1 .
3.3L (VIN N)	In right front corner of engine compartment, on relay bracket. See Fig. 2 .
Antenna Relay	Behind dash, above glove box.
Blower Motor Relay	In right front corner of engine compartment, on relay bracket. See Fig. 2 .
Cooling Fan Relay
2.2L (VIN 4)	In right front corner of engine compartment, on relay bracket. See Fig. 1 .
3.3L (VIN N)	In right front corner of engine compartment, on relay bracket. See Fig. 2 .
Fuel Pump Relay
2.2L (VIN 4)	In right front corner of engine compartment, on relay bracket. See Fig. 1 .
3.3L (VIN N)	In right front corner of engine compartment, on relay bracket. See Fig. 2 .
Hazard Flasher Relay	On convenience center.
Horn Relay	On convenience center.
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
Century	On accelerator pedal bracket.
Cutlass Ciera & Cutlass Cruiser	Behind right side of dash, behind fuse block.

Buick Century Limited 1993 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Convenience Center
Century	Near left kick panel.
Cutlass Ciera & Cutlass Cruiser	Near right kick panel.
ECM/Fuel Pump Fuse
2.2L (VIN 4)	In right front corner of engine compartment, on relay bracket. See Fig. 1 .
3.3L (VIN N)	In right front corner of engine compartment, on relay bracket. See Fig. 2 .
Fuse Block
2.2L (VIN 4)	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	At starter solenoid, or battery positive terminal pigtail.
Multi-Function Alarm In-Line Fuse	Near fuse block, taped to harness.
Power Accessory Circuit Breaker	In fuse block.
Power Window Circuit Breaker	In fuse block.

Buick Century Limited 1993 CONTROL UNITS LOCATION

Component	Location
Cruise Control Module	Behind dash, above accelerator pedal.
Daytime Running Lights (DRL) Module	Behind left side of dash, below speaker.
Ignition Module
2.2L	On right side of cylinder block, under intake manifold. See Fig. 1 .
3.3L	At timing chain end of left cylinder head. See Fig. 2 .
Engine Control Module (ECM)
2.2L (VIN 4)	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.
Remote Dimmer Module	Behind dash, near left kick panel.
Remote Keyless Entry Module	Above left rear wheelwell.
Steering Wheel Controls
Switch & Electronics Module	Attached to underside of steering column.
Translator Module	Attached to underside of steering column.

Buick Century Limited 1993 SENDING UNITS & SENSORS LOCATION

Component	Location
A/C Pressure Sensor (2.2L)	In right front corner of engine compartment. See Fig. 1 .
Air Bag System
Arming Sensor	Behind dash, to right of heater case, near top of dash.
Discriminating Sensor
Forward	Forward of engine compartment, on hood latch support.
Passenger Compartment	Behind dash, forward of center console.
Coolant Temperature Sending Unit
2.2L	On cylinder head, on coolant outlet (part of ECT sensor).
3.3L	Under alternator.
Crankshaft Position Sens. (3.3L)	At crankshaft pulley. See Fig. 2 .
Engine Coolant Temp. (ECT) Sensor
2.2L	At flywheel end of cylinder head, on coolant outlet. See Fig. 1 .
3.3L	Under alternator. See Fig. 2 .
Intake Air Temp. (IAT) Sens. (2.2L)	On air intake tube, or on intake manifold.
Knock Sensor (3.3L)	On right side of cylinder block. See Fig. 2 .
Manifold Absolute Pressure (MAP) Sensor (2.2L)	On right side of air cleaner assembly.
Mass Airflow (MAF) Sensor (3.3L)	On throttle body assembly. See Fig. 1 .
Oil Pressure Sender/Switch	On right side of cylinder block. See Fig. 2 .
Throttle Position (TP) Sensor
2.2L (VIN 4)	On throttle body assembly. See Fig. 1 .
3.3L (VIN N)	On throttle body assembly. See Fig. 2 .
Vehicle Speed Sensor (VSS)
2.2L (VIN 4)	On transaxle, where right axle exits transaxle. See Fig. 1 .
3.3L (VIN N)	On transaxle, where right axle exits transaxle. See Fig. 2 .

Buick Century Limited 1993 MOTORS LOCATION

Component	Location
Blower Motor	On right end of engine compartment firewall.
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	On left side of engine compartment, in washer fluid reservoir.
Rear	On right side of engine compartment, in washer fluid reservoir.

Buick Century Limited 1993 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
2.2L	On upper intake plenum, facing firewall. See Fig. 1 .
3.3L	In right front corner of engine compartment, on canister. See Fig. 2 .
EGR Control Solenoid (2.2L)	On top of intake manifold. See Fig. 1 .
Idle Air Control (IAC) Valve
2.2L (VIN 4)	On throttle body assembly. See Fig. 1 .
3.3L (VIN N)	On throttle body assembly. See Fig. 2 .
Tailgate Release Solenoid (Wagon)	In lower left side of tailgate.
Trunk Lid Release Solenoid	On trunk lid latch assembly.

Buick Century Limited 1993 SWITCHES LOCATION

Component	Location
A/C High-Pressure Cut-Out Switch	On rear of compressor. See Fig. 2 .
A/C Pressure Cycling Sw. (3.3L)	Near 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 Switch	On right side of cylinder block. See Fig. 2 .
Parking Brake Switch	On parking brake assembly.
Park/Neutral (P/N) Switch
2.2L (VIN 4)	On top of transaxle. See Fig. 1 .
3.3L (VIN N)	On top of transaxle. See Fig. 2 .
Power Steering Pressure Switch	Near firewall, in power steering line. See Fig. 2 .
Seat Belt Switch	On driver seat belt assembly.
Tailgate Ajar Switch (Wagon)	Bottom center of tailgate.

Buick Century Limited 1993 MISCELLANEOUS LOCATION

Component	Location
A/C Compressor Diode
2.2L	In compressor wiring connector, below alternator.
3.3L	In compressor wiring, below A/C compressor.
Blower Motor Resistors	In engine compartment, on blower fan housing.
Data Link Connector (DLC)
2.2L (VIN 4)	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 .
Diode Assembly	On center of engine compartment firewall.
DRL Diode	Behind center of dash, above A/C control.
DRL Photoresistor	On top center of dash.
Fuel Pump Test Connector
2.2L (VIN 4)	In right front or left rear corner of engine compartment. See Fig. 1 .
3.3L (VIN N)	In right front or left rear corner of engine compartment. See Fig. 2 .
Power Seat Capacitors	Under each front seat, in wiring harness.