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.
2006 Pontiac Grand Prix BaseFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Blower Motor Control Processor | On lower right side of dash. See Figure . |
| Body Control Module | Behind left side of dash, left of steering column. See Figure . |
| Digital Radio Receiver | Left side of rear compartment. See Figure . |
| Electronic Brake Control Module | Left side of engine compartment, part of brake pressure modulator valve. See Figure . |
| Electronic Compass Module | Top left side of rear package shelf. See Figure . |
| Ignition Control Module (ICM) (3.8L) | Top left front of engine. See Figure . |
| Inflatable Restraint I/P Module | Behind right side of dash. See Figure . |
| Inflatable Restraint I/P Module Connector | Right side of dash. See Figure . |
| Inflatable Restraint Sensing & Diagnostic Module (SDM) | Under right front seat. See Figure . |
| Powertrain Control Module (3.8L) | Left front side of engine compartment, in air cleaner assembly. See Figure . |
| Powertrain Control Module (5.3L) | Left side of engine compartment, inside air cleaner assembly. See Figure . |
| Radio Antenna Module | Center rear of roof. See Figure . |
| Remote Control Door Lock Receiver (RCDLR) | Behind right side of dash. See Figure . |
| Roof Rail Module-Left | Left rear of passenger compartment. See Figure . |
| Roof Rail Module-Right | Right rear of passenger compartment. See Figure . |
| Sun Roof Module | Front center of sun roof module. See Figure . |
| Theft Deterrent Exciter Module | Part of ignition key cylinder. See Figure . |
| Throttle Actuator Control (TAC) Module (3.8L) | On throttle body. See Figure . |
| Throttle Actuator Control (TAC) Module (5.3L) | Top rear of engine. See Figure . |
| Transmission Control Module | Left side of engine compartment, inside air cleaner assembly. See Figure . |
| Vehicle Communications Interface Module (VCIM) | In trunk, on left wheelwell. See Figure . |
Factory Service Tools
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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.