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.
2008 Pontiac Wave (CANADA) L4-1.6LFACTORY OEM SERVICE PROCEDURE
Control Module: Service and Repair
Transmission Control Module Replacement
Removal Procedure
Caution: Refer to Battery Disconnect Caution (Battery Disconnect Caution).
1. Disconnect the negative battery cable.
2. Locate the transmission control module (TCM) electrical connector next to the brake pedal assembly.
3. Disconnect the TCM electrical connector.
4. Remove the TCM retaining bolts.
5. Remove the TCM.
Installation Procedure
1. Connect the negative battery cable.
Notice: Refer to Fastener Notice (Fastener Notice).
2. Install the TCM and retaining bolts.
Tighten the TCM retaining bolts to 5 N.m (44 lb in).
3. Connect the TCM electrical connector.
4. Connect the negative battery cable.
5. Refer to Control Module References (Programming and Relearning) for programming and setup information.
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.