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 MANUALSBUICK1987REGAL GRAND NATIONALREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSELECTRICAL COMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORCONTROL UNITS
1987 Buick Regal Grand National
Control Units
1987 Buick Regal Grand NationalSECTION Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Cruise Control Module | Under left side of dash, above accelerator pedal. |
| Electronic A/C Module | To left of blower motor on right side of firewall. |
| Electronic Control Module (ECM) | Behind right kick panel. |
| Electr. Spark Control (ESC) Module | On bracket at top of right front wheelwell. See Figure & 6. |
| Multi-Function Chime Module | Behind left side of dash, at convenience center. |
| Theft Deterrent Controller | Under left side of dash, near kick panel. |
| Wiper/Washer Motor Module | On upper left corner of firewall in engine compartment. See Figure. |
RENDER: 1.0x
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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.