GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the radio. Refer to Radio Replacement in Entertainment.

  2. Object Number: 651721  Size: SH
  3. Remove the heater control assembly (1).

  4. Object Number: 363022  Size: SH
  5. Disconnect the mode cable from the HVAC module.

  6. Object Number: 651719  Size: SH
  7. Remove the mode cable (2) from the heater control assembly (3).
  8. Remove the mode cable from the vehicle.

Installation Procedure

Important: Verify the following conditions before performing the installation procedure:

   • Ensure that the center and RH control knobs are fully rotated counterclockwise.
   • Ensure that the heater module large door is open.
   • Ensure that the heater module small door is closed.

  1. Install the mode cable to the IP carrier.

  2. Object Number: 651719  Size: SH
  3. Install the mode cable (2) to the heater control assembly (3).

  4. Object Number: 363022  Size: SH
  5. Connect the mode cable to the HVAC module.

  6. Object Number: 651721  Size: SH
  7. Install the heater control assembly (1).
  8. Install the radio. Refer to Radio Replacement in Entertainment.