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 Cadillac Seville BaseFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location | |
|---|---|---|
| ABS Control Module | Behind rear seat area. | |
| Air Bag System | ||
| Initiator Module | On center of steering wheel. | |
| Resistor Module | Behind left side of dash, left of steering column. | |
| Sensor Module | Behind left side of dash, left of steering column. | |
| Catalytic Converter Temperature Alarm Module/Speaker | Under right side of dash, above kick panel. | |
| Chime Module | Under right side of dash, above glove box. | |
| Computer Command Ride (CCR) Module | On right side of luggage compartment. | |
| DRL/Twilight Sentinel Module | Behind left side of dash. | |
| Diagnostic Energy Reserve Module (DERM) | Behind left side of dash, on brake pedal support bracket. | |
| HVAC Power Module | On center of firewall. | |
| HVAC Programmer | Behind right side of dash, near PCM. | |
| Hazard Module | Behind left side of dash, left of steering column. | |
| Headlight Washer Module | Taped to wiring harness, 1" from rear edge of left rocker panel channel. | |
| Heated Seat Relay Modules | Under respective front seats. | |
| Heated Windshield Module | On center of firewall. | |
| Keyless entry Module | On left side of luggage compartment. | |
| Pass Key Decoder Module | On right side of luggage compartment. | |
| Power Window (Express Down) Module | In left door window switch unit. | |
| Powertrain Control Module (PCM) | Above right kick panel. See Figure . | |
| Overspeed Alert Module | Under right side of dash, above kick panel. | |
| RAP/Illuminated Entry Module | On right hand Electronics Bay, inside of luggage compartment. | |
| Theft Deterrent Module | On left side of luggage compartment. | |
| Turn Signal Flasher Module | Behind right side of dash, near glove box. | |
| Wiper/Washer Motor Module | On left side of firewall, in engine compartment. | |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.