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.
1997 Oldsmobile RegencyFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Adaptive Lamp Monitor Control Module | Behind dash, right of steering column support. |
| Backlight Antenna Module | On left rear sail panel. |
| Blower Control Module | On right side of firewall, near blower motor. |
| Body Control Module (MALL) | Behind right side of dash, on multi-use bracket. |
| Bose Amplifier | Behind dash, near radio. |
| Computer Command Ride (CCR) Controller | Below left front seat. |
| Cruise Control Module | On left side of firewall. |
| Electronic Brake (& Traction) Control Module (EBCM/EBTCM) | On left front of engine compartment. |
| Electronic Compass Module | Below rear deck shelf. |
| Fuel Level Module | Behind right side of dash, on multi-use bracket. |
| Fuel Pump Control Module (3.8L VIN 1) | On left side of luggage compartment. |
| Head-Up Display (HUD) Control Module (Pontiac) | On top left side of dash. |
| Ignition Control Module (ICM) (3.8L VIN K) | On top right front of engine. See Figure . |
| Ignition Control Module (ICM) (3.8L VIN 1) | On top right front of engine. See Figure . |
| Lamp Control Module (LCM) | Behind center of dash. |
| Lamp Driver Module (LDM) | Behind right side of dash. |
| Memory Seat/Memory Mirror Control Module | Under driver's seat. |
| Panel Dimmer Module (Oldsmobile) | On driver's knee bolster. |
| PASS-Key Decoder Module | Behind right side of dash. |
| Powertrain Control Module (PCM) (3.8L VIN K) | On left front corner of engine compartment. See Figure . |
| Powertrain Control Module (PCM) (3.8L VIN 1) | On left front corner of engine compartment. See Figure . |
| Pneumatic Seat Control Module | Under driver's seat. |
| Remote Dimmer Module | Behind left side of dash. |
| Remote Function Actuator (RFA) Module | Behind right side of dash. |
| Seat Control Module | Under left front seat. |
| Sensing & Diagnostic Module (SDM) | Under right front seat. |
| Sun Roof Control Module | On center rear of sun roof, next to sun roof motor. |
| Transaxle Control Indicator Decoder Module (Oldsmobile & Pontiac) | Below center console. |
| Window Module (Express Down) | In center rear of left front door. |
| Wiper/Washer Motor Module | On left rear of engine compartment, behind strut tower. |
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.