GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Optra 🢒 Transmission/Transaxle 🢒 Automatic Transmission - ZF 4HP 16 🢒 Transmission Control Module Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution 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

    Important: After replacing the TCM, refer to Service Programming System (SPS) 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.