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.
Module, Transmission Control (TCM): Removal
If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to align the PROXI configuration data into the new ECU. Follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under Body Control Module (BCM) Miscellaneous Functions menu.
- Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
- Remove the left front wheel and tire assembly. Refer to REMOVAL
.
- Remove the lower Transmission Control Module (TCM) mounting fasteners (1).
- Remove the support and lower the vehicle.
- Disconnect the TCM wire harness connector (1).
- Remove the upper TCM mounting fasteners (1a).
- Remove the TCM (1b) from the vehicle.
NO RELATED
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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.