Chevrolet Astro 1992 - ELECTRICAL COMPONENT LOCATOR 1992 GENERAL MOTORS TRUCKS General Motors Corp. - Electrical Component Location

Chevrolet Astro 1992 - BUZZERS, RELAYS & TIMERS

Chevrolet Astro 1992 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Clutch Control Relay	On relay bracket, at right rear of engine compartment.
A/C Control Relay	In convenience center.
Blower Relay (High)	On relay bracket, at right side of engine compartment.
Daytime Running Lights (DRL) Relay	On left rear corner of engine compartment, on firewall.
Foglight Relay	Behind left side of dash.
Fuel Pump Relay
4.3L (VIN W)	On firewall, above blower motor. See Fig. 1 .
4.3L (VIN Z)	On firewall, above blower motor. See Fig. 2 .
Hazard Flasher Relay	In convenience center.
Horn Relay	In convenience center.
Power Door Lock Delay Relay	Behind right side of dash, on firewall.
Power Door Lock Relay	Behind right side of dash, on firewall.
PRNDL Light Relay	Behind right side of dash, right of steering column.
Rear Window Defogger Timer Relay	Behind left side of dash, near heater control.
Seat Belt Alarm Buzzer	Behind convenience center.
Turn Signal Flasher Relay	In fuse block.
Intake Manifold Variable Tuning Control Relay	On right side of firewall.

Chevrolet Astro 1992 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Battery Junction Block	On left side of firewall.
Circuit Breakers
Auxiliary A/C	In convenience center.
Auxiliary Heater	In convenience center.
Foglight Relay	In convenience center.
Power Accessories	In fuse block.
Power Seats	In convenience center.
Power Window	In fuse block.
Convenience Center	Under left side of dash, left of steering column.
Fuse Block
4.3L (VIN W)	Behind left side of dash. See Fig. 1 .
4.3L (VIN Z)	Behind left side of dash. See Fig. 2 .
Fusible Links
A/C Clutch Control Relay (Gray)	At battery junction block.
Alternator (Rust)	At starter solenoid (2 links).
Ignition Switch/Fuse Block (Black)	At battery junction block (2 links).
In-Line Fuses
Foglights	Taped to wiring harness, near fuse block.
Power Mirror	Taped to wiring harness, above fuse block.
Trailer	Tapede to harness, above left kick panel.

Chevrolet Astro 1992 CONTROL UNITS LOCATION

Component	Location
ABS Module	On master cylinder.
Audio Alarm Module	Behind left side of dash, at convenience center.
Cruise Control Module	Under left side of dash, right of steering column.
Daytime Running Lights (DRL) Module	Behind left side of dash.
Electronic Control Module (ECM)
4.3L (VIN W)	Behind right kick panel. See Fig. 1 .
4.3L (VIN Z)	Behind right kick panel. See Fig. 2 .
Elec. Spark Control (ESC) Module (4.3L VIN Z)	On right rear of engine, behind cylinder head. See Fig. 2 .
Power Door Lock Delay Module	Behind right side of dash, on firewall.
Power Door Lock Module	Behind right kick panel.

Chevrolet Astro 1992 SENDING UNITS & SENSORS LOCATION

Component	Location
ABS Wheel Speed Sensors	On each wheel hub.
Coolant Temp. Sending Unit/Switch	On left side of engine.
Coolant Temperature Sensor
4.3L (VIN W)	On top front of engine. See Fig. 1 .
4.3L (VIN Z)	On top front of engine. See Fig. 2 .
Knock Sensor
4.3L (VIN W)	On top left rear & lower right side of engine. See Fig. 1 .
4.3L (VIN Z)	On left rear of engine, under exhaust manifold. See Fig. 2 .
Manifold Absolute Pressure (MAP) Sensor
4.3L (VIN W)	On left front of intake plenum. See Fig. 1 .
4.3L (VIN Z)	On right of engine, on valve cover. See Fig. 2 .
Manifold Air Temperature (MAT) Sensor
4.3L (VIN W)	On top front of intake manifold. See Fig. 1 .
Throttle Position Sensor (TPS)
4.3L (VIN W)	On throttle body assembly. See Fig. 1 .
4.3L (VIN Z)	On throttle body assembly. See Fig. 2 .
Vehicle Speed Sensor (VSS)
4.3L (VIN W)	On rear of transmission or transfer case. See Fig. 1 .
4.3L (VIN Z)	On rear of transmission or transfer case. See Fig. 2 .

Chevrolet Astro 1992 MOTORS LOCATION

Component	Location
Blower Motor
Auxiliary	Behind driver's seat, on side panel.
Main	On right side of firewall.
Fuel Pump	On sending unit, in fuel tank.
Idle Air Control (IAC) Motor
4.3L (VIN W)	On throttle body assembly. See Fig. 1 .
4.3L (VIN Z)	On throttle body assembly. See Fig. 2 .
Power Door Lock Motor	In bottom of each door.
Power Seat Motor	Under each front seat.
Power Window Motor	Inside respective doors.
Windshield Washer Motor	In washer fluid reservoir.
Windshield Wiper Motor
Front	On center of firewall, in engine compartment.
Rear	In rear liftgate.

Chevrolet Astro 1992 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
EGR Vacuum Solenoid (4.3L VIN Z)	On top right of engine, on valve cover. See Fig. 2 .
Intake Manifold Variable Tuning Control Valve (4.3L VIN W)	On right side of firewall. See Fig. 1 .
Liftgate Release Solenoid	On rear liftgate.
Torque Converter Clutch (TCC) Solenoid	On left side of transmission.

Chevrolet Astro 1992 SWITCHES LOCATION

Component	Location
A/C Pressure Cycling Switch	On A/C accumulator.
Back-Up Light/Transmission Position Switch	On lower section of steering column.
Brakelight Switch	On brake pedal bracket.
Clutch Start Switch (M/T)	On clutch pedal bracket.
Oil Pressure Switch
4.3L (VIN W)	On top rear of engine. See Fig. 1 .
4.3L (VIN Z)	On top rear of engine. See Fig. 2 .
Park/Neutral (P/N) Switch	On lower section of steering column.
Parking Brake Switch	On parking brake lever assembly.
Power Steering Pressure Switch (PSPS)	In steering pressure hose, near steering gear.

Chevrolet Astro 1992 MISCELLANEOUS LOCATION

Component	Location
ALDL Diagnostic Connector
4.3L (VIN W)	Under left side of dash, at convenience center. See Fig. 1 .
4.3L (VIN Z)	Under left side of dash, at convenience center. See Fig. 2 .
Blower Resistor	In each blower motor housing, near motor.
Fuel Pump Prime/Test Connector
4.3L (VIN W)	In wiring harness, on right side of firewall. See Fig. 1 .
4.3L (VIN Z)	In wiring harness, on right side of firewall. See Fig. 2 .
Set Timing Connector	On top rear of engine, near distributor.
Tachometer Connector	In harness, next to ignition coil.
Vehicle Speed Sensor Buffer	Behind left side of dash, right of steering column.