Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1993ASTRO VAN PASSENGER EXTENDED, 4.3 ZREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCOMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORCONTROL UNITS
1993 Chevrolet Astro Van Passenger Extended, 4.3 Z
Control Units
1993 Chevrolet Astro Van Passenger Extended, 4.3 ZSECTION Control Units
CONTROL UNITS LOCATION
| Component | Location | |
|---|---|---|
| ABS Module | Mounted on brake master cylinder. | |
| Air Bag Arming Sensor Module | Above transmission, center of crossmember. | |
| Air Bag Diag. Energy Reserve Module | Above left kick panel. | |
| 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. | |
| Ignition Control Module | Inside distributor assembly. | |
| Intake Manifold Tuning Valve (IMTV) Controller (VIN W) | On top center of engine. | |
| Liftgate Lock/Latch Module | Near right rear "D" pillar. | |
| Power Door Lock Delay Module | ||
| W/Rear Dutch Door | Behind right side of dash, on firewall. | |
| W/O Rear Dutch Door | Behind right kick panel. | |
| Powertrain Control Module (PCM) | ||
| "L" & "M" Series (4.3L VIN W) | Behind right kick panel. See Figure . | |
| "M" Series 4.3L (VIN Z - Calif.) | Behind right kick panel. See Figure . | |
| "M" Series 4.3L (VIN Z - Fed.) | Behind right kick panel. See Figure . | |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.