GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 Body and Accessories 🢒 Body Control System 🢒 HVAC Control Module Replacement

Removal Procedure

    Object Number: 82150 Size: SH
  1. Remove the I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement in Instrument Panel, Gages and Console.
  2. Remove the HVAC control module retaining screws.
  3. Pull the HVAC control module out from the I/P center support bracket.

    4. Object Number: 296211 Size: SH
  4. Disconnect the electrical connector from the HVAC control module.
  5. Remove the HVAC control module from the vehicle.

Installation Procedure
  1. Install the HVAC control module to the vehicle.

    2. Important: The key should be in the off position when connecting the HVAC control module electrical connector to ensure proper calibration.


    Object Number: 296211 Size: SH
  2. Connect the electrical connector to the HVAC control module.

    3. Object Number: 82150 Size: SH
  3. Install the HVAC control module to the I/P center support bracket.

    4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the HVAC control module retaining screws.

    5. Tighten
    Tighten the screws to 1.9 N·m (17 lb in).

  5. Install the I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement in Instrument Panel, Gages and Console.

    6. Important: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result.

    The engine must be running for proper calibration to occur.

  6. Start and allow the engine to run for a least one minute.