GMC Vandura Special G3500 1992 - ELECTRICAL COMPONENT LOCATOR 1992 ELECTRICAL COMPONENT LOCATIONS General Motors Corp. Electrical Components

GMC Vandura Special G3500 1992 - BUZZERS, RELAYS & TIMERS

GMC Vandura Special G3500 1992 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C-Heater Blower Relays	On evaporator case, in engine compartment.
Auxiliary Cooling Fan Relay
"G" Series	On radiator support panel.
"P" Series	On top of shipping panel.
Brake Warning Alarm Buzzer	Behind left side of dash.
Cold Advance Control Relay (6.2L Diesel)	On left front of engine compartment. See Fig. 1.
Daytime Running Lights (DRL) Relay	Behind left side of dash.
Fuel Pump Relay
"G" Series
4.3L (VIN Z)	At center of firewall. See Fig. 2.
5.0L (VIN H) & 5.7L (VIN K)	At center of firewall. See Fig. 3.
7.4L (VIN N)	At center of firewall. See Fig. 4.
"P" Series
4.3L (VIN Z)	On left frame rail, behind shipping panel. See Fig. 5.
5.7L (VIN K)	On left frame rail, behind shipping panel. See Fig. 6.
7.4L (VIN N)	On left frame rail, behind shipping panel. See Fig. 7.
Hazard Flasher
"G" Series	Near interior fuse block.
"P" Series	At top left side of shipping panel.
Horn Relay	Near interior fuse block.
Power Antenna Relay	On right side of steering column.
Power Door Lock Delay Relay	Behind left side of dash, above kick panel.
Power Door Lock Relay	Behind left side of dash, above kick panel.
Rear Defogger Relay	On brake pedal support bracket.
Turn Signal Flasher	On fuse block.

GMC Vandura Special G3500 1992 - CIRCUIT PROTECTION DEVICES

GMC Vandura Special G3500 1992 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Circuit Breakers
Power Window	On fuse block.
Power Accessory	On fuse block.
Fuse Block
4.3L (VIN Z)
"G" Series	Under left side of dash, above kick panel. See Fig. 2.
"P" Series	Under left side of dash, above kick panel. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	Under left side of dash, above kick panel. See Fig. 3.
5.7L (VIN K) "P" Series	Under left side of dash, above kick panel. See Fig. 6.
7.4L (VIN N)
"G" Series	Under left side of dash, above kick panel. See Fig. 4.
"P" Series	Under left side of dash, above kick panel. See Fig. 7.
Fusible Links
A/C-Heater (Rust)	At battery junction block rear unit).
Alternator (Rust)	At battery junction block.
Auxiliary Cooling Fan Relay (Rust)	At battery junction block.
Glow Plug Controller (Rust)	At battery junction block.
Ignition Switch (Rust)	At battery junction block (2 links).
Power Accessories (Rust)	At battery junction block.
In-Line Fuse (MT1 Trans.)	Behind left side of dash.

GMC Vandura Special G3500 1992 - CONTROL UNITS

GMC Vandura Special G3500 1992 CONTROL UNITS LOCATION

Component	Location
Audio Alarm Module	Behind dash, below fuse block.
Check Engine Light Driver Module	On left side of steering column.
Cruise Control Module	At rear of parking brake bracket.
Daytime Running Lights (DRL) Module	Behind left side of dash.
Diode Array Module	Behind left side of dash, in dash harness.
Electronic Control Module (ECM)
4.3L (VIN Z)
"G" Series	Under driver's seat. See Fig. 2.
"P" Series	Under driver's seat. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	Under driver's seat. See Fig. 3.
Electronic Control Module (ECM)
"P" Series 5.7L (VIN K)	Under driver's seat. See Fig. 6.
"G" Series 7.4L (VIN N)	Under driver's seat. See Fig. 4.
"P" Series 7.4L (VIN N)	Under driver's seat. See Fig. 7.
"G" & "P" Series 6.2L (Diesel)	Under driver's seat. See Fig. 1.
Electronic Delay Module	Behind left side of dash.
Elec. Spark Control (ESC) Module
4.3L (VIN Z)
"G" Series	Under driver's seat. See Fig. 2.
"P" Series	Under driver's seat. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	Under driver's seat. See Fig. 3.
"P" Series 5.7L (VIN K)	Under driver's seat. See Fig. 6.
Electronic Spark Timing Module	On distributor.
Glow Plug Controller
"G" Series	On left side of engine.
"P" Series	On top rear of engine.
Hot Fuel Module
5.0L (VIN H) & 5.7L (VIN K)	Under driver's seat. See Fig. 3.
7.4L (VIN N)
"G" Series	Under driver's seat. See Fig. 4.
"P" Series	Under driver's seat. See Fig. 7.
Keyless Entry Module	Behind right side of dash.
Low Coolant Warning Module	Behind left side of dash.
Power Door Lock Delay Module	To right of steering column.
Powertrain Control Module (PCM)
"G" Series	Under driver's seat.
"P" Series	Behind left side of shipping panel.
Rear ABS Module	On left side of engine compartment.
Transmission Control Module
"G" Series	Under driver's seat.
"P" Series	Behind left side of shipping panel.

GMC Vandura Special G3500 1992 - SENDING UNITS & SENSORS

GMC Vandura Special G3500 1992 SENDING UNITS & SENSORS LOCATION

Component	Location
Barometric Pressure Sensor	At center of shipping.
Coolant Level Sensor	In radiator.
Coolant Temp. Sending Unit	On left cylinder head.
Coolant Temperature Sensor
4.3L (VIN Z)
"G" Series	On front of intake manifold. See Fig. 2.
"P" Series 4.3L (VIN Z)	On front of intake manifold. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	On front of intake manifold. See Fig. 3.
"P" Series 5.7L (VIN K)	On front of intake manifold. See Fig. 6.
Coolant Temperature Sensor
"G" Series 7.4L (VIN N)	On front of intake manifold. See Fig. 4.
"P" Series 7.4L (VIN N)	On front of intake manifold. See Fig. 7.
Engine Speed Sensor
"G" Series	On left front of engine.
"P" Series 6.2L (Diesel)	On rear of engine. See Fig. 1.
Input Speed Sensor	On left side of transmission.
Knock Sensor
"G" Series 4.3L (VIN Z)	Under exhaust manifold. See Fig. 2.
"P" Series 4.3L (VIN Z)	Under exhaust manifold. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	Near starter. See Fig. 3.
"P" Series 5.7L (VIN K)	Near starter. See Fig. 6.
Low Coolant Warning Sensor (Diesel)	In right radiator tank.
Manifold Abs. Press. (MAP) Sensor
"G" & "P" Series 6.2L (Diesel)	On center of firewall. See Fig. 1.
Gas
"G" Series 4.3L (VIN Z)	At center of right valve cover. See Fig. 2.
"P" Series 4.3L (VIN Z)	At center of right valve cover. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	At center of right valve cover. See Fig. 3.
"P" Series 5.7L (VIN K)	At center of right valve cover. See Fig. 6.
"G" Series 7.4L (VIN N)	At center of right valve cover. See Fig. 4.
"P" Series 7.4L (VIN N)	At center of right valve cover. See Fig. 7.
Oil Pressure Sending Unit	On left rear of engine block.
Output Speed Sensor	On left side of transmission.
Throttle Position Sensor (TPS)
"G" Series 4.3L (VIN Z)	On throttle body (gas), or on injection pump (diesel). See Fig. 2.
"P" Series 4.3L (VIN Z)	On throttle body (gas), or on injection pump (diesel). See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	On throttle body (gas), or on injection pump (diesel). See Fig. 3.
"P" Series 5.7L (VIN K)	On throttle body (gas), or on injection pump (diesel). See Fig. 6.
"G" Series 7.4L (VIN N)	On throttle body (gas), or on injection pump (diesel). See Fig. 4.
"P" Series 7.4L (VIN N)	On throttle body (gas), or on injection pump (diesel). See Fig. 7.
"G" & "P" Series 6.2L (Diesel)	On throttle body (gas), or on injection pump (diesel). See Fig. 1.
Vehicle Speed Sensor (VSS)
"G" Series 4.3L (VIN Z)	On left rear of transmission. See Fig. 2.
"P" Series 4.3L (VIN Z)	On left rear of transmission. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	On left rear of transmission. See Fig. 3.
"P" Series 5.7L (VIN K)	On left rear of transmission. See Fig. 6.
"G" Series 7.4L (VIN N)	On left rear of transmission. See Fig. 4.
"P" Series 7.4L (VIN N)	On left rear of transmission. See Fig. 7.
"G" & "P" Series 6.2L (Diesel)	On left rear of transmission. See Fig. 1.
Water-In-Fuel Sensor (Diesel)	In fuel filter assembly.

GMC Vandura Special G3500 1992 - MOTORS

GMC Vandura Special G3500 1992 MOTORS LOCATION

Component	Location
Idle Air Control (IAC) Motor
4.3L (VIN Z)
"G" Series	On throttle body (gas). See Fig. 2.
"P" Series	On throttle body (gas). See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	On throttle body (gas). See Fig. 3.
"P" Series 5.7L (VIN K)	On throttle body (gas). See Fig. 6.
"G" Series 7.4L (VIN N)	On throttle body (gas). See Fig. 4.
Idle Air Control (IAC) Motor ("P" Series 7.4L VIN N)	On throttle body (gas). See Fig. 7.
Windshield Washer Pump Motor	On windshield washer reservoir.
Windshield Wiper Motor	On firewall.

GMC Vandura Special G3500 1992 - SOLENOIDS & SOLENOID VALVES

GMC Vandura Special G3500 1992 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Cold Advance Solenoid (Diesel)	On injection pump.
Electric Air Control (EAC) Solenoid ("G" Series 4.3L VIN Z)	On left rear of engine, on valve cover. See Fig. 2.
Elec. Vacuum Regulator Valve (EVRV)
5.0L (VIN H) & 5.7L (VIN K)	On top right side of engine. See Fig. 3.
"P" Series 5.7L (VIN K)	On top right side of engine. See Fig. 6.
"G" Series 7.4L (VIN N)	On top right side of engine. See Fig. 4.
"P" Series 7.4L (VIN N)	On top right side of engine. See Fig. 7.
EGR Vacuum Solenoid
"G" Series 4.3L (VIN Z)	On top right of engine. See Fig. 2.
"P" Series 4.3L (VIN Z)	On top right of engine. See Fig. 5.
"G" & "P" Series 6.2L (Diesel)	At left rear of engine. See Fig. 1.
Except 4.3L & Diesel	On left front of engine.
EGR Vent Solenoid (6.2L Diesel)	On top left rear of engine. See Fig. 1.
EPR Solenoids (6.2L Diesel)	On left front of engine. See Fig. 1.
Fast Idle Solenoid (6.2L Diesel)	On injection pump. See Fig. 1.
Fuel Shutoff Solenoid (Diesel)	At top center of engine, near intake plenum.
Torque Conv. Clutch (TCC) Solenoid
"G" Series 4.3L (VIN Z)	In transmission. See Fig. 2.
"P" Series 4.3L (VIN Z)	In transmission. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	In transmission. See Fig. 3.
"P" Series 5.7L (VIN K)	In transmission. See Fig. 6.
"G" Series 7.4L (VIN N)	In transmission. See Fig. 4.
"P" Series 7.4L (VIN N)	In transmission. See Fig. 7.
"G" & "P" Series 6.2L (Diesel)	In transmission. See Fig. 1.

GMC Vandura Special G3500 1992 - SWITCHES

GMC Vandura Special G3500 1992 SWITCHES LOCATION

Component	Location
A/C Clutch Cycling Press. Switch	On rear of accumulator.
A/C High Pressure Cut-Out Switch	On rear of compressor.
Aux. Cooling Fan Press. Switch	On right side of engine block, above starter.
Backup Light Switch (A/T)	At base of steering column.
Brake Pressure Warning Switch	On proportioning valve, at left frame rail.
Cold Advance Fast Idle Temp. Switch	On rear of right cylinder head.
Cold Advance Glow Plug Inhibit Relay	On right side of firewall.
Coolant Temperature Switch	In left cylinder head.
Engine Temperature Switch	On rear of right cylinder head.
Flow Switch	Near power steering pump.
Fuel Pump/Oil Press. Switch	Near distributor.
Low Coolant Warning Switch	On right side of radiator.
Neutral Safety Switch	On lower steering column.
Oil Pressure Switch
"G" Series 4.3L (VIN Z)	On top rear of engine. See Fig. 2.
"P" Series 4.3L (VIN Z)	On top rear of engine. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	On top rear of engine. See Fig. 3.
"P" Series 5.7L (VIN K)	On top rear of engine. See Fig. 6.
"G" Series 7.4L (VIN N)	On top rear of engine. See Fig. 4.
"P" Series 7.4L (VIN N)	On top rear of engine. See Fig. 7.
Stoplight Switch	On brake pedal bracket.

GMC Vandura Special G3500 1992 - MISCELLANEOUS

GMC Vandura Special G3500 1992 MISCELLANEOUS LOCATION

Component	Location
A/C-Heater Blower Resistors	On evaporator case, in engine compartment.
ALDL Diagnostic Connector
"G" Series 4.3L (VIN Z)	Under left side of dash. See Fig. 2.
"P" Series 4.3L (VIN Z)	Under left side of dash. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	Under left side of dash. See Fig. 3.
"P" Series 5.7L (VIN K)	Under left side of dash. See Fig. 6.
"G" Series 7.4L (VIN N)	Under left side of dash. See Fig. 4.
"P" Series 7.4L (VIN N)	Under left side of dash. See Fig. 7.
"G" & "P" Series 6.2L (Diesel)	Under left side of dash. See Fig. 1.
Fuel Heater (Diesel)	At fuel filter assembly.
Fuel Pump Prime/Test Connector
"G" Series 4.3L (VIN Z)	On firewall, next to fuel pump relay. See Fig. 2.
"P" Series 4.3L (VIN Z)	On firewall, next to fuel pump relay. See Fig. 5.
5.0L (VIN H) & 5.7L (VIN K)	On firewall, next to fuel pump relay. See Fig. 3.
"P" Series 5.7L (VIN K)	On firewall, next to fuel pump relay. See Fig. 6.
"G" Series 7.4L (VIN N)	On firewall, next to fuel pump relay. See Fig. 4.
"P" Series 7.4L (VIN N)	On firewall, next to fuel pump relay. See Fig. 7.
In-Line Diode
"G" Series	On top rear of engine.
"P" Series	Near A/C compressor.
Low Coolant Probe	On right side of radiator.
Rear Heater Blower Resistor	Behind driver's seat, on heater case.
Vehicle Speed Sensor (VSS) Buffer
"G" Series	Taped to harness, behind instrument panel.
"P" Series 5.7L (VIN K)	Inside left side of shipping panel. See Fig. 6.