GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

  1. Disconnect the negative battery cable.

  2. Object Number: 1245836  Size: SH
  3. Locate the transmission control module (TCM) electrical connector next to the brake pedal assembly.
  4. Disconnect the TCM electrical connector.

  5. Object Number: 1245837  Size: SH
  6. Remove the TCM retaining bolts.
  7. Remove the TCM.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1245837  Size: SH
  1. Install the TCM.
  2. Install the TCM bolts and tighten to 5 N·m (44 lb in).

  3. Object Number: 1245836  Size: SH
  4. Connect the TCM electrical connector.
  5. Connect the negative battery cable.
  6. Refer to Control Module References for programming and setup information.