Chevrolet Cavalier VL 1990 - ELECTRICAL COMPONENT LOCATOR 1990 ELECTRICAL COMPONENT LOCATOR General Motors Corp. - Electrical Component Locations

Chevrolet Cavalier VL 1990 - BUZZERS, RELAYS & TIMERS

Chevrolet Cavalier VL 1990 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
Compressor Relay
2.0L (VIN K) Sunbird	On right front fender panel, behind strut tower. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On right front fender panel, behind strut tower. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	On right front fender panel, behind strut tower. See Fig. 3 .
3.1L (VIN T) Cavalier	On right front fender panel, behind strut tower. See Fig. 4 .
Firewall View: Cavalier & Sunbird	On right front fender panel, behind strut tower. See Fig. 5 .
A/C-Heater Blower Motor Relay
Cavalier
Left Side of Firewall	On left side of firewall, on relay bracket. See Fig. 6 .
Firewall View	On left side of firewall, on relay bracket. See Fig. 5 .
Sunbird	On right front fender panel, on relay block. See Fig. 5 .
Cooling Fan Relay
2.2L (VIN G) Cavalier & Sunbird	On left front of engine compartment, behind battery. See Fig. 3 .
3.1L (VIN T) Cavalier	On left front of engine compartment, behind battery. See Fig. 4 .
2.0L (VIN K) Sunbird	On left side of firewall, behind power brake booster. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On left side of firewall, behind power brake booster. See Fig. 2 .
EGR Relay (VIN M)	On right side of engine, near intake plenum. See Fig. 2 .
Fog Light Relay	Behind left side of dash, above fuse block.
Fuel Pump Relay
2.2L (VIN G) Cavalier & Sunbird	On left side of firewall, on relay bracket. See Fig. 3 .
3.1L (VIN T) Cavalier	On left side of firewall, on relay bracket. See Fig. 4 .
Fuel Pump Relay View	On left side of firewall, on relay bracket. See Fig. 5 & 6.
2.0L (VIN K) Sunbird	On right front fender panel, behind strut tower. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On right front fender panel, behind strut tower. See Fig. 2 .
Horn Relay	On convenience center, under lower left side of dash.
Luggage Compartment (Trunk) Release Relay	Behind center of dash, taped to instrument panel harness.
Power Door Lock Relay	Behind upper left side of dash.
Turn Signal/Hazard Flasher Relay	Behind dash, on right side of steering column support.

Chevrolet Cavalier VL 1990 - CIRCUIT PROTECTION DEVICES

Chevrolet Cavalier VL 1990 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Circuit Breakers	On fuse block.
ECM Fuse (VIN G)	On left side of firewall, on relay bracket. See Fig. 3 .
ECM/Fuel Pump Fuse (VIN T)	On left side of firewall, on relay bracket. See Fig. 4 .
Fuse Block
2.0L (VIN K) Sunbird	Behind lower left side of dash. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	Behind lower left side of dash. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	Behind lowerr left side of dash. See Fig. 3 .
3.1L (VIN T) Cavalier	Behind lower left side of dash. See Fig. 4 .
Fusible Links
Charging System (Gray & Rust)	Near starter solenoid.
Cooling Fan (Gray)	Between battery junction block and cooling fan relay. See Fig. 6 .
ECM (Gray)	In left front of engine compartment, behind battery.
Headlight Door Module (Gray)	In headlight door module harness before connector.
Headlight Switch (Rust)	Near starter solenoid.

Chevrolet Cavalier VL 1990 - CONTROL UNITS

Chevrolet Cavalier VL 1990 CONTROL UNITS LOCATION

Component	Location
Audio Alarm Module	Integral with convenience center.
Cruise Control Module	Behind bottom center of dash, below heater and A/C control assembly.
Distributorless Ignition Module (DIS)
2.2L (VIN G) Cavalier & Sunbird	On top right rear of engine. See Fig. 3 .
3.1L (VIN T) Cavalier	On left side of engine. See Fig. 4 .
3.1 (VIN T) Cavalier View	On left side of engine. See Fig. 7 .
Electronic Control Module (ECM)
2.0L (VIN K) Sunbird	Behind right side of dash, near glove box. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	Behind right side of dash, near glove box. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	Behind right side of dash, near glove box. See Fig. 3 .
3.1L (VIN T) Cavalier	Behind right side of dash, near glove box. See Fig. 4 .
Headlight Door Module	On left rear of engine compartment, on left front strut tower.
Light Dimmer Module	Behind dash, left of steering column.

Chevrolet Cavalier VL 1990 - SENDING UNITS & SENSORS

Chevrolet Cavalier VL 1990 SENDING UNITS & SENSORS LOCATION

Component	Location
A/C Refrigerant Pressure Sensor (VIN T)	On refrigerant line, on right front of engine compartment.
Coolant Temp. Sending Unit/Switch
VIN G	On left side of engine, behind coolant outlet.
VINs K & M	On top left side of engine, under distributor.
VIN T	On Left rear of engine, above exhaust manifold. See Fig. 4 .
Coolant Temperature Sensor (CTS)
2.2L (VIN G) Cavalier & Sunbird	On left side of engine, behind coolant outlet. See Fig. 3 .
3.1L (VIN T) Cavalier	On left side of engine, behind coolant outlet. See Fig. 4 .
2.0L (VIN K) Sunbird	On right front of engine, on coolant outlet. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On right front of engine, on coolant outlet. See Fig. 2 .
Crankshaft Sensor
VIN G	On right side of block, below DIS module.
VIN T	On right rear of engine, below exhaust manifold. See Fig. 4 .
Fuel Pump/Oil Pressure Sending Unit/Switch
Cavalier	On right rear of engine, below intake manifold.
Sunbird	On lower right side of engine, near oil filter.
Knock Sensor
VIN M	On right side of block, below starter solenoid. See Fig. 2 .
VIN T	On right side of block, below exhaust manifold. See Fig. 4 .
Manifold Absolute Press. (MAP) Sensor
2.2L (VIN G) Cavalier & Sunbird	On right of firewall, left of bllower motor. See Fig. 3 .
3.1L (VIN T) Cavalier	On right of firewall, left of blower motor. See Fig. 4 .
2.0L (VIN K) Sunbird	On side of air cleaner assembly. See Fig. 1 .
2.0L (VIN K) Sunbird Firewall View	On side of air cleaner assembly. See Fig. 5 .
2.0L Turbo (VIN M) Sunbird	On top of engine, left of alternator. See Fig. 2 .
2.0L Turbo (VIN M) Sunbird View	On top of engine, left of alternator. See Fig. 8 .
2.0L Turbo (VIN M) Sunbird Firewall View	On top of engine, left of alternator. See Fig. 5 .
Manifold Air Temp. (MAT) Sensor
2.0L (VIN K) Sunbird	On right side of engine, on intake plenum. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On right side of engine, on intake plenum. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	On right side of engine, on intake plenum. See Fig. 3 .
2.0L Turbo (VIN M) Sunbird View	On right side of engine, on intake plenum. See Fig. 8 .
Firewall View Cavalier & Sunbird	On right side of engine, on intake plenum. See Fig. 5 .
Oxygen (O2) Sensor
2.0L (VIN K) Sunbird	On exhaust manifold. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On exhaust manifold. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	On exhaust manifold. See Fig. 3 .
3.1L (VIN T) Cavalier	On exhaust manifold. See Fig. 4 .
Throttle Position Sensor (TPS)
2.0L (VIN K) Sunbird	On throttle body. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On throttle body. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	On throttle body. See Fig. 3 .
3.1L (VIN T) Cavalier	On throttle body. See Fig. 4 .
2.0L Turbo (VIN M) Sunbird View	On throttle body. See Fig. 8 .
Vehicle Speed Sensor (VSS)
2.0L (VIN K) Sunbird	On top right of transaxle. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On top right of transaxle. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	On top right of transaxle. See Fig. 3 .
3.1L (VIN T) Cavalier	On top right of transaxle. See Fig. 4 .
Automatic Transaxle View	On top right of transaxle. See Fig. 9 .

Chevrolet Cavalier VL 1990 - MOTORS

Chevrolet Cavalier VL 1990 MOTORS LOCATION

Component	Location
A/C-Heater Blower Motor	On right side of firewall. See Fig. 5 .
Fuel Pump Motor	In fuel tank.
Headlight Door Motor	Behind respective headlight assembly.
Idle Air Control (IAC) Motor	On throttle body.
Power Antenna Motor	In right front fender, behind wheelwell.
Windshield Wiper Motor	On center of firewall.

Chevrolet Cavalier VL 1990 - SOLENOIDS & SOLENOID VALVES

Chevrolet Cavalier VL 1990 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Canister Purge Solenoid (VIN T)	On vapor canister, behind right headlight. See Fig. 4 .
EGR Valve Solenoid (VIN M)	In vacuum line, below intake manifold.
Elect. Vacuum Reg. Valve (EVRV)	On right side of engine, above starter solenoid.
Idle Air Control (IAC) Valve
2.0L (VIN K) Sunbird	On throttle body assembly. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On throttle body assembly. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	On throttle body assembly. See Fig. 3 .
3.1L (VIN T) Cavalier	On throttle body assembly. See Fig. 4 .
2.0L Turbo (VIN M) Sunbird View	On throttle body assembly. See Fig. 8 .
Lugg. Comp. Release Solenoid
Coupe, Sedan & Convertible	Underneath luggage compartment lid, near lock mechanism.
Station Wagon	Below right side of tailgate window.
Seat Belt Lap Retractor Solenoid	In lower rear of each front door.
Seat Belt Shoulder Retractor Solenoid	In upper rear of each front door.
Torque Converter Clutch (TCC) Solenoid
2.0L (VIN K) Sunbird	Inside transmission. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	Inside transmission. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	Inside transmission. See Fig. 3 .
3.1L (VIN T) Cavalier	Inside transmission. See Fig. 4 .
Wastegate Solenoid
2.0L Turbo (VIN M) Sunbird	At top center of engine, behind valve cover. See Fig. 2 .
2.0L Turbo (VIN M) Sunbird View	At top center of engine, behind valve cover. See Fig. 8 .

Chevrolet Cavalier VL 1990 - SWITCHES

Chevrolet Cavalier VL 1990 SWITCHES LOCATION

Component	Location
A/C High Pressure Cut-Out Switch
VINs K & M	On left side of A/C compressor.
VIN T	On right front of engine, below alternator. See Fig. 4 .
A/C Low Pressure Cut-Out Switch
VINs G, K & M	On left side of A/C compressor.
A/C Pressure Cycling Switch	Behind right front strut tower, in A/C hose.
Back-Up Light Switch	On top rear of manual transaxle.
Brake Fluid Level Switch	On master cylinder.
Brake/Stoplight Switch	On upper brake pedal support.
Clutch Start Switch	Behind dash, below clutch pedal support.
Coolant Level Switch	In coolant reservoir.
Front Door Handle Switch	In respective front door latch assembly.
Fuel Pump/Oil Pressure Sending Unit/Switch
VINs K & M	Lower right rear of engine, near oil filter.
VIN T	On right front of engine, above oil filter. See Fig. 8 .
Headlight Dimmer Switch	Behind dash, on left side of steering column.
Oil Pressure Switch (VIN T)	On left lower side of engine block.
Power Steering Pressure Switch	On left side of firewall, left of brake booster. See Fig. 4 .
Seat Belt Switch	On driver's seat belt assembly.
Transaxle Position Switch
2.2L (VIN G) Cavalier & Sunbird	On left rear of engine, on left side of transaxle. See Fig. 3 .
3.1L (VIN T) Cavalier	On left rear of engine, on left side of transaxle. See Fig. 4 .
2.0L (VIN K) Sunbird	On left rear of engine, on top of transaxle. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	On left rear of engine, on top of transaxle. See Fig. 2 .

Chevrolet Cavalier VL 1990 - MISCELLANEOUS

Chevrolet Cavalier VL 1990 MISCELLANEOUS LOCATION

Component	Location
A/C Compressor Clutch Diode	In A/C compressor clutch connector. See Fig. 7 .
A/C-Heater Blower Resistor	On center of firewall.
ALDL Diagnostic Connector
2.0L (VIN K) Sunbird	Behind left side of dash, on right side of fuse block. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	Behind left side of dash, on right side of fuse block. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	Behind left side of dash, on right side of fuse block. See Fig. 3 .
3.1L (VIN T) Cavalier	Behind left side of dash, on right side of fuse block. See Fig. 4 .
Convenience Center	Behind dash, left of steering column.
Fuel Pump Test Connector
2.0L (VIN K) Sunbird	Taped to harness on left side of firewall, behind strut tower. See Fig. 1 .
2.0L Turbo (VIN M) Sunbird	Taped to harness on left side of firewall, behind strut tower. See Fig. 2 .
2.2L (VIN G) Cavalier & Sunbird	Taped to harness on left side of firewall, behind strut tower. See Fig. 3 .
3.1L (VIN T) Cavalier	Taped to harness on left side of firewall, behind strut tower. See Fig. 4 .