GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Rendezvous - FWD 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Transmission Control Module Replacement

Removal Procedure
  1. Turn the ignition OFF.

    2. Object Number: 1404634 Size: SH
  2. Remove the air cleaner upper cover. Refer to Air Cleaner Assembly Replacement for the 3.6L (LY7) engine.

    3. Object Number: 1395508 Size: SH
  3. Remove the transmission control module (TCM) from the air cleaner.
  4. Disconnect the TCM electrical connectors from the TCM.

Installation Procedure

    Object Number: 1395508 Size: SH
  1. Connect the TCM electrical connectors to the TCM.
  2. Install the TCM to the air cleaner.

    3. Object Number: 1404634 Size: SH
  3. Install the air cleaner upper cover. Refer to Air Cleaner Assembly Replacement for the 3.6L (LY7) engine.
  4. Program the TCM. Refer to Control Module References .

    5. 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 ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  5. Reset the TAP values. Refer to Transmission Adaptive Functions .
  6. Refer to Control Module References for programming and setup information.