Control Module: Service and Repair

Transmission Control Module (TCM) Replacement

Removal Procedure

Important:
^ Remove any debris from the transmission control module (TCM) connector surfaces before servicing the TCM. Inspect the TCM module connector gaskets when diagnosing or replacing the TCM. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant intrusion into the TCM.
^ The ignition must be OFF when disconnecting or reconnecting power to the TCM.





1. Disconnect the negative battery cable.
2. Remove the TCM cover bolts (1) located on the left side of the radiator shroud.
3. Pull the cover and TCM up and away from the radiator shroud.





4. Push up on the retainers (1) in order to remove the TCM from the cover.
5. Disconnect the TCM electrical connectors (2) and remove the TCM from the vehicle.

Installation Procedure





1. Connect the TCM electrical connectors (2) to the TCM.
2. Install the TCM to the cover.





3. Using the alignment tabs (1), install the cover and module to the radiator shroud.





4. Install the TCM cover bolts (1) to the radiator shroud.
^ Tighten the bolts to 9 Nm (80 inch lbs.).

Notice:
Refer to Fastener Notice in Service Precautions.

5. Connect the negative battery cable.
6. Reprogram the TCM. Refer to Control Module References in Computer/Integrating Systems. Programming and Relearning