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.
1992 Buick Roadmaster BaseFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location | |
|---|---|---|
| ABS System Module | Behind left side of dash, above convenience center. | |
| Air Bag System | ||
| Inflator Module | At center of steering wheel. | |
| Resistor Module | Behind left side of dash, above parking brake pedal. | |
| Audio Alarm Module | On convenience center, near parking brake pedal. | |
| Cruise Control Module | On left rear of inner fender panel, near master cylinder. | |
| Daytime Running Lights (DRL) Module | Above base of steering column. | |
| Diagnostic Energy Reserve Module (DERM) | Behind left side of dash, above convenience center. | |
| Electronic Control Module (ECM) | ||
| 4.3L (VIN Z) | Behind right kick panel. See Figure . | |
| 5.0L & 5.7L (VIN E & 7) | Behind right kick panel. See Figure . | |
| Elect. Spark Control (ESC) Module | ||
| 4.3L (VIN Z) | On relay bracket, on right rear of engine compartment. See Figure . | |
| 5.0L & 5.7L (VIN E & 7) | On relay bracket, on right rear of engine compartment. See Figure . | |
| Keyless Entry Module | In luggage compartment, attached to rear shelf. | |
| Low Coolant Warning Module | Behind right side of dash, below glove compartment. | |
| Low Oil Warning Module | Behind right side of dash, below glove compartment. | |
| Twilight Sentinel Module | Above base of steering column. | |
| Vehicle Speed Sensor Module | Behind left side of dash, above convenience center. | |
| Windshield Wiper Module | Attached to wiper motor assembly. See Figure . | |
Factory Service Tools
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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.
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