GM Service Manual Online
For 1990-2009 cars only

Auxiliary Heater and Air Conditioning Control Replacement CJ4

Removal Procedure


    Object Number: 478637  Size: SH

    Important: Pull upward on sides of trim plate to release retaining clips.

  1. Remove the front floor console rear accessory trim plate.

  2. Object Number: 478645  Size: SH
  3. Disconnect the rear control module electrical connector (1).
  4. Remove the rear control module (2) from the front of the rear accessory trim plate by pressing in the four retaining tabs.

Installation Procedure


    Object Number: 478645  Size: SH
  1. Install the rear control module (2) by pressing into place until fully seated into the rear accessory trim plate.
  2. Connect the rear control module electrical connector (1).

  3. Object Number: 478640  Size: SH
  4. Install the front floor console rear accessory trim plate onto front floor console.