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 Pontiac G5 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Body Control Module | Under center of dash. See Figure. |
| Digital Radio Receiver | Center of rear shelf, under trim pad. See Figure. |
| Electronic Brake Control Module (EBCM) | Near underhood fuse block. See Figure. |
| Electronic Power Steering (EPS) Control Module | Under dash, near base of steering column. |
| Engine Control Module (ECM) | Left side of engine compartment. See Figure. |
| Heated Seat Control Module (Driver) | Under front center of driver seat. See Figure. |
| Heated Seat Module (Passenger) | Under front center of front passenger's seat. See Figure. |
| HVAC Control Module | Center of dash, below radio. See Figure. |
| Ignition Coil Module 1 | Top of engine, under cover at cylinder No. 1. |
| Ignition Coil Module 2 | Top of engine, under cover at cylinder No. 2. |
| Ignition Coil Module 3 | Top of engine, under cover at cylinder No. 3. |
| Ignition Coil Module 4 | Top of engine, under cover at cylinder No. 4. |
| Ignition Control Module | Top of engine. See Figure. |
| Inflatable Restraint Front Passenger Presence System Module | Under passenger seat cushion. See Figure. |
| Inflatable Restraint Sensing & Diagnostic Module | Under center console. See Figure. |
| Remote Control Door Lock Receiver | Under right dash trim panel. See Figure. |
| Theft Deterrent Module | Steering column, near ignition switch. See Figure. |
| Throttle Actuator Control (TAC) Module | Intake manifold assembly. |
| Transmission Control Module (TCM) | Left rear of engine compartment. See Figure. |
| Vehicle Communication Interface Module (VCIM) | Under rear, shelf between speakers. 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.