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.
2009 Chevrolet Impala SSFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Blower Motor Control Processor | Right side of dash. See Figure. |
| Body Control Module (BCM) | Left side of dash. See Figure. |
| Electronic Brake Control Module (EBCM) | In brake pressure modulator valve. See Figure. |
| Engine Control Module (ECM) | Inside air cleaner assembly. See Figure. |
| Headlamp Flasher Module | Right headlight assembly. See Figure. |
| Heated Seat Control Module | Under driver's seat. See Figure. |
| HVAC Module | Center of dash. See Figure. |
| Ignition Control Module (ICM) | Top center rear of engine. See Figure. |
| Inflatable Restraint Front Passenger Presence System (PPS) Module | Under front passenger's seat. See Figure. |
| Inflatable Restraint I/P Module | Right side of dash. See Figure. |
| Inflatable Restraint Sensing & Diagnostic Module (SDM) | Under front passenger's seat. See Figure. |
| Inflatable Restraint Side Impact Module - Left (5) | Left side of driver's seat back. See Figure. |
| Inflatable Restraint Side Impact Module - Right (8) | Right side of front passenger's seat back. See Figure. |
| Inflatable Restraint Steering Wheel Module | In steering wheel. See Figure. |
| Radio Antenna Module | Left side of back window. See Figure. |
| Remote Control Door Lock Receiver (RCDLR) | Under defroster grill panel. See Figure. |
| Roof Rail Module - Left | Left "C" pillar. See Figure. |
| Roof Rail Module - Right | Right "C" pillar. See Figure. |
| Theft Deterrent Exciter Module | On ignition key cylinder housing. See Figure. |
| Transmission Control Module (TCM) | Left side of engine compartment. See Figure. |
| Vehicle Communication Interface Module (VCIM) | Left side of trunk. 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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