GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1290879  Size: SH
  1. Disconnect the negative battery cable.
  2. Disconnect the wiring connectors.
  3. Remove the transaxle control module (TCM) from the bracket.

Installation Procedure

    Note: After replacing the TCM, refer to Transmission Control Module Programming and Setup to ensure the module has the latest calibrations.


    Object Number: 1290879  Size: SH
  1. Install the TCM to the bracket.
  2. Connect the wiring connectors.
  3. Connect the negative battery cable.
  4. Refer to Control Module References for programming and setup information.