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.
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HOMESERVICE MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 318 (ENGINE CONTROL SYSTEM - 3.8L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSPOWERTRAIN CONTROL MODULE (PCM) REPLACEMENTREMOVAL PROCEDURE
2006 Pontiac G6 GTP, 2D Coupe, Standard
Removal Procedure
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Removal Procedure
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (L26) or Battery Negative Cable Disconnect/Connect Procedure (LY7) in Engine Electrical.
- Remove the left front inner fender brace. Refer to Brace Replacement - Front Fender Upper Diagonal in Body Front End.
- Remove the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement .
- Remove the air cleaner housing cover screws (2).
- Remove the air cleaner housing cover (1).
- Without disconnecting the PCM electrical connectors, remove the PCM and the wiring harness from the air cleaner housing assembly (3).
- Disconnect the PCM electrical connectors and remove the PCM (4).
IMPORTANT:
It is necessary to record the remaining engine oil life. If the replacement module is not programed with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5 000 km (3,000 mi) from the last engine oil change.
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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.