GMC Sonoma Syclone 1992 - ELECTRICAL COMPONENT LOCATOR 1992 ELEC COMPONENT LOCATION General Motors Trucks

GMC Sonoma Syclone 1992 - BUZZERS, RELAYS & TIMERS

GMC Sonoma Syclone 1992 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Clutch Control Relay
2.5L (VIN A)	Far left side of firewall. See Fig. 1 .
2.8L (VIN R)	Center of left side inner fender. See Fig. 2 .
4.3L (VIN Z)	Far left side of firewall. See Fig. 3 .
A/C High Blower Relay	Between blower motor and A/C accumulator.
Daytime Running Lights (DRL) Relay	On right side of steering column.
Foglight Relay	Above interior fuse block.
Fuel Pump Relay
2.5L (VIN A)	On firewall, left of brake booster. See Fig. 1 .
2.8L (VIN R)	On firewall, left of brake booster. See Fig. 2 .
4.3L (VIN Z)	On firewall, left of brake booster. See Fig. 3 .
4.3L HP (VIN W)	On firewall, left of brake booster. See Fig. 4 .
Hazard Flasher
Digital Cluster	On convenience center.
Standard Cluster	On interior fuse block.
Horn Relay	On convenience center.
Power Door Lock Relay	On right side of steering column.
Rear Window Defogger Relay	On right side of brake pedal support.
Rear Window Release Relay	Near interior fuse block.
Turn Signal Flasher
Digital Cluster	On fuse block.
Standard Cluster	At convenience center.
Variable Tuning Relay (4.3L HP)	On left side of firewall.

GMC Sonoma Syclone 1992 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Circuit Breakers
Power Accessories	At top of fuse block.
Power Windows	At bottom of fuse block.
Convenience Center	Left of steering column, at lower edge of dash.
Fuse Block
2.5L (VIN A)	Below left side of dash. See Fig. 1 .
2.8L (VIN R)	Below left side of dash. See Fig. 2 .
4.3L (VIN Z)	Below left side of dash. See Fig. 3 .
4.3L HP (VIN W)	Below left side of dash. See Fig. 4 .
Fusible Links
Power Distribution (2.5L & 4.3L)	At rear of alternator (2 links).
Power Distribution (2.8L)	At starter solenoid.
Interior Lights In-line Fuse	On center of firewall.

GMC Sonoma Syclone 1992 CONTROL UNITS LOCATION

Component	Location
ABS Module
Rear ABS (RABS)	Near master cylinder.
4WD ABS	On left front fender.
Audio Alarm Module	On convenience center.
Cruise Control Module	On left side of steering column.
Daytime Running Lights (DRL) Module	Above interior fuse block.
Diode Module	Above fuse block.
Elapsed Timer Module (2.8L)	Under right side of dash, next to ECM. See Fig. 2 .
Electronic Control Module (ECM)
2.5L (VIN A)	Under right side of dash. See Fig. 1 .
2.8L (VIN R)	Under right side of dash. See Fig. 2 .
4.3L (VIN Z)	Under right side of dash. See Fig. 3 .
4.3L HP (VIN W)	Under right side of dash. See Fig. 4 .
Elec. Spark Control (ESC) Module
2.8L (VIN R)	On center of firewall. See Fig. 2 .
4.3L (VIN Z)	On center of firewall. See Fig. 3 .
4.3L HP (VIN W)	On center of firewall. See Fig. 4 .
Elec. Spark Timing (EST) Module	At distributor.
Elec. Transfer Case Module	Near ECM.
Variable Tuning Controller (4.3L HP)	On top of intake manifold.
Windshield Wiper Module	On center of firewall .

GMC Sonoma Syclone 1992 SENDING UNITS & SENSORS LOCATION

Component	Location
Coolant Temperature Sensor
2.5L	On top rear of engine. See Fig. 1 .
2.8L (VIN R)	On top front of engine. See Fig. 2 .
4.3L (VIN Z)	On top front of engine. See Fig. 3 .
4.3L HP	On lower right side of engine. See Fig. 4 .
Knock Sensor
2.8L	On right side of engine. See Fig. 2 .
4.3L	Near distributor. See Fig. 3 .
4.3L HP	On lower left & on top rear of engine. See Fig. 4 .
Manifold Absolute Pressure (MAP) Sensor (Except 4.3L HP)
2.5L (VIN A)	On top right side of engine. See Fig. 1 .
2.8L (VIN R)	On top right side of engine. See Fig. 2 .
4.3L (VIN Z)	On top right side of engine. See Fig. 3 .
4.3L HP	Near A/C compressor. See Fig. 4 .
Manifold Air Temp. (MAT) Sensor
2.5L (VIN A)	On right side of engine, near alternator. See Fig. 1 .
4.3L HP (VIN W)	On right side of engine, near alternator. See Fig. 4 .
Throttle Position Sensor (TPS)
2.5L (VIN A)	On throttle body assembly. See Fig. 1 .
2.8L (VIN R)	On throttle body assembly. See Fig. 2 .
4.3L (VIN Z)	On throttle body assembly. See Fig. 3 .
4.3L HP (VIN W)	On throttle body assembly. See Fig. 4 .
Transfer Case Speed Sensor	On right rear of transfer case.
Vehicle Speed Sensor (VSS)
2.5L (VIN A)	On left rear of transmission. See Fig. 1 .
2.8L (VIN R)	On left rear of transmission. See Fig. 2 .
4.3L (VIN Z)	On left rear of transmission. See Fig. 3 .
4.3L HP (VIN W)	On left rear of transmission. See Fig. 4 .

GMC Sonoma Syclone 1992 MOTORS LOCATION

Component	Location
A/C-Heater Blower Motor	In evaporator housing, in engine compartment.
Idle Air Control (IAC) Motor
2.5L (VIN A)	On throttle body. See Fig. 1 .
2.8L (VIN R)	On throttle body. See Fig. 2 .
4.3L (VIN Z)	On throttle body. See Fig. 3 .
4.3L HP (VIN W)	On throttle body. See Fig. 5 .
Power Door Lock Motor	In bottom rear of each door.
Power Window Motor	In each door.
Windshield Washer Motor	On side of washer reservoir.
Windshield Wiper Motor	On center of firewall.

GMC Sonoma Syclone 1992 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
EGR Vacuum Solenoid
2.5L	Near A/C compressor. See Fig. 1 .
2.8L	Near distributor. See Fig. 2 .
Elec. Air Control (EAC) Sol. (2.8L)	On bracket, at right front of engine. See Fig. 2 .
Elec. Vacuum Regulator Valve (EVRV) (4.3L)	On right valve cover.
Torque Converter Clutch Sol. (TCC)	On left side of transmission.

GMC Sonoma Syclone 1992 SWITCHES LOCATION

Component	Location
A/C Cycling Pressure Switch	On accumulator.
A/C Low Charge Protection Switch	On rear of A/C compressor.
Back-Up Light Switch	On left side of transmission.
Brake Pressure Switch	On master cylinder.
Brake/Stoplight Switch	On brake pedal support bracket.
Brake/Cruise Switch	On brake pedal support bracket.
Coolant Temperature Switch
4.3L HP	Near A/C compressor.
Except 4.3L HP	Lower right side of engine.
Clutch/Cruise Switch	On clutch pedal support bracket.
Front Axle Lock Switch	On front axle, near steering gear.
Fuel Pump/Oil Pressure Switch
4.3L HP	Near distributor.
Except 4.3L HP	Near distributor.
Neutral Safety Switch	On top of steering column.
Oil Pressure Switch
2.5L	On right rear of engine. See Fig. 1 .
2.8L	On left side of engine. See Fig. 2 .
4.3L (VIN Z)	On top rear of engine. See Fig. 3 .
4.3L HP (VIN W)	On top rear of engine. See Fig. 4 .
Parking Brake Switch	On base of parking brake assembly.
Power Steering Press. Switch (PSPS)	In power steering pressure hose, near steering gear. See Fig. 1 .
Starter Lock-Out Switch (M/T)	On clutch pedal bracket.
Starter Lock-Out Switch (A/T)	Base of steering column.
Transmission Position Switch	On steering column.
4WD Indicator Switch	On front drive axle.

GMC Sonoma Syclone 1992 MISCELLANEOUS LOCATION

Component	Location
A/C-Heater Blower Motor Resistor	On blower motor housing.
ALDL Diagnostic Connector
2.5L (VIN A)	Under left side of dash, to right of steering column. See Fig. 1 .
2.8L (VIN R)	Under left side of dash, to right of steering column. See Fig. 2 .
4.3L (VIN Z)	Under left side of dash, to right of steering column. See Fig. 3 .
4.3L HP (VIN W)	Under left side of dash, to right of steering column. See Fig. 4 .
Fuel Pump Prime/Test Connector
2.5L (VIN A)	On center of firewall. See Fig. 1 .
2.8L (VIN R)	On center of firewall. See Fig. 2 .
4.3L (VIN Z)	On center of firewall. See Fig. 3 .
4.3L HP (VIN W)	On center of firewall. See Fig. 4 .
Vehicle Speed Sensor Buffer	Near ECM.