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.
2004 Pontiac Sunfire AutomaticFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Body Control Module (BCM) | Behind lower left side of dash. See Figure . |
| Cruise Control Module (CCM) | On rear right side of engine compartment. See Figure . |
| EBCM/BPMV Assembly | Next to master cylinder. See Figure . |
| Electronic Brake Control Module (EBCM) | Next to master cylinder. See Figure . |
| Ignition Control Module (ICM) | On top left of engine. See Figure . |
| Inflatable Restraint I/P Module | Above glove box. See Figure . |
| Inflatable Restraint Side Impact Module - LF (RF Similar) | On driver seat side. See Figure . |
| Inflatable Restraint Steering Wheel Module | Under horn pad. See Figure . |
| I/P Module | Behind right side of dash. See Figure . |
| Powertrain Control Module (PCM) | On right rear of engine compartment. See Figure . |
| Sensing And Diagnostic Module (SDM) | Under right front seat. See Figure . |
| Side Impact Module (Driver) | In driver seat back. See Figure . |
| Side Impact Module (Passenger) | In passenger seat back. See Figure . |
| Steering Wheel Module | On steering wheel. See Figure . |
| Sunroof Control Module | At front of sunroof. See Figure . |
| Vehicle Communication Interface Module (VCIM) | At top of right kick panel. See Figure . |
Factory Service Tools
Use the Manual With the Right Hardware
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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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