For 1990-2009 cars only
Removal Procedure
- Unlock the transmission control module (TCM) electrical connector by pulling the retainer (2) away from the electrical connector (1).
- Carefully disconnect the electrical connector (1) from the TCM.
- Remove the TCM from the mounting bracket by pulling back on the retaining tabs (1) to release the control module .
Important: Twisting or tilting of the TCM electrical connector while disconnecting may result in bent or misaligned electrical terminal pins.
Installation Procedure
- Align the TCM with the locating pins (2) on the module mounting bracket.
- Install the TCM by seating it fully into the bracket until all of the retaining tabs (1) have engaged the edge of the module edge.
- Carefully connect the TCM electrical connector (1) to the TCM.
- Lock the TCM electrical connector securely to the TCM by pushing the retainer (2) toward the electrical connector (1) until fully seated.
- A replacement TCM must be programmed with the proper software/calibrations. Refer to Control Module References .
- Reset the TAP values. Refer to Transmission Adaptive Functions .
Important: Twisting or tilting of the TCM electrical connector while connecting may result in bent or misaligned electrical terminal pins.
Important: It is recommended that transmission adaptive pressure (TAP) information be reset.
Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the engine control module (ECM), powertrain control module (PCM) or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.