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

Buick Riviera 1993 - BUZZERS, RELAYS & TIMERS

Buick Riviera 1993 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
ABS System Relays	On left front corner of engine compartment, on ABS modulator.
A/C Clutch Control Relay	In engine compartment relay center.
Antenna Relay	On right side of luggage compartment, rear of wheelhouse.
Cooling Fan Relays (3)	In engine compartment relay center.
Courtesy Lights Relay (2)	In passenger compartment and micro relay center.
Daytime Running Lights (DRL) Relay	In engine compartment relay center.
Defogger Relay	In micro relay center.
Elec. Level Control (ELC) Relay	In micro relay center.
Fuel Pump Relay	In passenger compartment relay center. See Fig. 1 .
Hazard Flasher Relay	Under left side of dash, on right side of steering column support.
Headlight Relays	In front of console, taped to fuse block.
Horn Relay	In engine compartment relay center.
Park Lights Relay	In passenger compartment relay center.
Power Antenna Relay	In right side of trunk, on antenna assembly.
Power Door Lock Relay	Behind left kick panel.
Retained Accessory Power (RAP) Relays (2)	In passenger compartment relay center.
Starter Enable Relay	Under left side of dash, near steering column.
Sun Roof Relay	On center of header harness, near sun roof actuator assembly.
Theft Deterrent Relay	Under left side of dash, near passenger compartment relay center.
Turn Signal Flasher Relay	On right side of steering column support.
Twilight Sentinel Relays	In passenger compartment relay center.

Buick Riviera 1993 - CIRCUIT PROTECTION DEVICES

Buick Riviera 1993 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Battery Junction Block	On right side of engine compartment, behind battery.
Circuit Breakers	In fuse block.
Fuse Block	On left front of center console. See Fig. 1 .
Fusible Links	At battery junction block, on firewall, and at starter solenoid.
Relay Centers
Passenger Compartment	On center console. See Fig. 1 .
Engine Compartment	On left front of engine compartment, behind washer fluid reservoir. See Fig. 1 .
Micro Relay Center	In right front of luggage compartment.
Theft Deterrent In-Line Fuse	Below left side of steering column, in starter enable relay breakout.

Buick Riviera 1993 - CONTROL UNITS

Buick Riviera 1993 CONTROL UNITS LOCATION

Component	Location
ABS System
Control Module	In luggage compartment, on left rear wheelwell.
Modulator	Behind left upper radiator support.
Air Bag System
Initiator Module	In steering wheel pad assembly.
Resistor Module	Behind left side of dash, above parking brake.
Body Control Module (BCM)	Under right side of dash, behind glove compartment.
Chime Module	Behind left side of dash.
Diagnostic Energy Reserve Module (DERM)	Behind left side of dash, to right of steering column.
HVAC Power Module	In center front of dash, in A/C-heater module.
HVAC Programmer	Behind right side of dash, below BCM.
Headlight Door Control Module	In front left corner of engine compartment, behind headlight.
Heated Windshield
Control Module	Behind left side of dash, left of steering column.
Power Module	On right rear of engine compartment firewall.
Ignition Module & Coil Assembly	On right front of engine. See Fig. 1 .
Keyless Entry Module	Under center of rear package shelf, in luggage compartment.
PASS-Key II Module	Behind left side of dash, left of steering column. See Fig. 1 .
Power Window (Express Down) Module	On rear of left front door.
Powertrain Control Module (PCM)	Behind right side of dash, near glove compartment. See Fig. 1 .
Resistor Module	Under left side of dash, left of steering column.
Seat Control Module	In center console, near seat air pump assembly.
Theft Deterrent Module	Under left side of dash, left of steering column.

Buick Riviera 1993 - SENDING UNITS & SENSORS

Buick Riviera 1993 SENDING UNITS & SENSORS LOCATION

Component	Location
ABS Wheel Speed Sensor	On each wheel spindle.
A/C System
High Side Temperature Sensor	In A/C high side line, left of blower motor. See Fig. 1 .
In-Car Temperature Sensor	Behind top center of dash.
Low Side Temperature Sensor	In A/C low side line, on right side of firewall.
Outside Temperature Sensor	On bottom of upper radiator support.
Sunload Sensor	On top center of dash.
Air Bag System
Dual Sensor	Behind right side of dash, left of glove compartment.
Forward Discriminating Sensor	On front center of engine compartment, near hood latch.
Camshaft Position Sensor	On lower right front side of engine, below water pump. See Fig. 1 .
Coolant Temperature Sensor	On top rear of engine, under throttle body. See Fig. 1 .
Crankshaft Position Sensor	On lower right side of engine, right of crankshaft pulley. See Fig. 1 .
Elec. Level Control Height (ELC) Sensor	Under left rear of vehicle, on lower suspension arm.
Intake Air Temp. (IAT) Sensor	In air cleaner assembly. See Fig. 1 .
Knock Sensor	On lower right side of engine, above oil filter. See Fig. 1 .
Mass Airflow (MAF) Sensor	On front of throttle body. See Fig. 1 .
Oil Level Sensor	Lower left side of engine.
Oil Pressure Sensor/Switch	On lower right front side of engine, near oil filter. See Fig. 1 .
Throttle Position (TP) Sensor	On throttle body assembly. See Fig. 1 .
Vehicle Speed Sensor (VSS)	On lower right front side of engine, near oil filter. See Fig. 1 .

Buick Riviera 1993 - MOTORS

Buick Riviera 1993 MOTORS LOCATION

Component	Location
ABS Pump Motor	On left side of firewall.
Blower Motor	On right side of firewall, in engine compartment.
Elec. Level Control Compressor	Under rear of vehicle, at right rear crossmember.
Fuel Pump	In fuel tank.
Power Antenna Motor	On base of antenna, on right side of trunk.
Power Door Lock Motor	One at lower rear of each door.
Power Mirror Motor	Two in each outside mirror.
Power Seat Motor	Below front portion of front seats.
Power Window Motors	One in lower front portion of each door.
Sun Roof Motor	In center of windshield header area.
Trunk Pull-Down Motor	Near latch, at rear center of trunk.
Windshield Wiper Motor	On left side of firewall.

Buick Riviera 1993 - SOLENOIDS & SOLENOID VALVES

Buick Riviera 1993 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Canister Purge Solenoid	On vapor canister, in left front corner of engine compartment. See Fig. 1 .
Evaporative Emission Control Solenoid	On lower left front of engine compartment, top of vapor canister.
Fuel Filler Door Release Solenoid	In left side of luggage compartment, above wheelwell.
Idle Air Control (IAC) Valve	On throttle body assembly. See Fig. 1 .
TCC Solenoid	At rear of engine, on transaxle. See Fig. 1 .
Trunk Lid Release Solenoid	At rear center of trunk lid, on lock assembly.
Shift Interlock Solenoid	Under center console, near gear selector.

Buick Riviera 1993 - SWITCHES

Buick Riviera 1993 SWITCHES LOCATION

Component	Location
A/C Low Pressure Switch	On A/C line, at right side of firewall.
Brake/Cruise/Stoplight/TCC Switch	On brake pedal support.
Cooling Fan Temperature Switch	On top right side of engine, near alternator.
Door Ajar Switch	In respective doors, at end of door lock module assembly.
Low Brake Fluid Switch	In brake fluid reservoir.
Park/Neutral Switch	On top right of transaxle. See Fig. 1 .
Parking Brake Switch	On parking brake assembly.
Seat Belt Switch	Part of driver's seat belt assembly.
Transaxle Position Switch	On left rear of engine, top of transaxle.
Washer Fluid Level Switch	In windshield washer reservoir.

Buick Riviera 1993 - MISCELLANEOUS

Buick Riviera 1993 MISCELLANEOUS LOCATION

Component	Location
ABS Switch Capacitor	Behind left side of dash, in brake switch connector.
A/C Compressor Clutch Diode	Taped in engine harness, near A/C compressor clutch.
Brake Switch Capacitor	On brake switch harness connector.
Data Link Connector (DLC)	Behind left side of dash, above parking brake pedal. See Fig. 1 .
DRL Resistor	Near engine compartment relay center.
Fuel Pump Test Connector	Taped to harness, near engine comp. relay center or MAF sensor. See Fig. 1 .
Keyless Entry Vehicle Access Code Connector	Under center of rear shelf, below keyless entry module.
Power Seat Motor Capacitor	In left front seat electrical connector.
Lumbar Compressor Capacitor	Below each front seat, at lumbar support compressor.
Sound System (Delco-Bose) Diode	On wiring harness, on right front of trunk.
Theft Deterrent Diode	Behind left side of dash, left of steering column.
Twilight Sentinel Photocell	On top center of dash pad.