GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the instrument panel (I/P) center trim panel. Refer to Instrument Panel Center Trim Panel Replacement .
  2. Remove the HVAC control module screws.

  3. Object Number: 1203599  Size: SH
  4. Remove the HVAC control module.
  5. Remove the HVAC control module wire harness connectors.

Installation Procedure

    Important: The key should be in the OFF position when connecting the electrical connectors to ensure proper calibration.

  1. Install the HVAC control module wire harness connectors.

  2. Object Number: 1203599  Size: SH
  3. Install the HVAC control module.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Tighten the HVAC control module screws.
  6. Tighten
    Tighten the screws to 2.5 N·m (22 lb in).

  7. Install the I/P center trim panel. Refer to Instrument Panel Center Trim Panel Replacement .
  8. Calibrate the actuator. Refer to Actuator Recalibration .
  9. Refer to Control Module References for programming and setup information.