GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the instrument panel accessory trim plate. Refer to in Instrument Panel Accessory Trim Plate Replacement Instrument Panel, Gauges and Console.
  2. Remove the HVAC control module mounting screws.

  3. Object Number: 233705  Size: SH
  4. Remove the screws from the HVAC control module.
  5. Disconnect the electrical connector from the HVAC control module.
  6. Remove the HVAC control module from the instrument panel.

Installation Procedure

  1. Connect the electrical connectors to the HVAC control module.

  2. Object Number: 233705  Size: SH
  3. Install the HVAC control module to the instrument panel.
  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.

  5. Install the screws to the HVAC control module.
  6. Tighten
    Tighten the HVAC control module screws to 2 N·m (18 lb ft).

  7. Install the instrument panel accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement in Instrument Panel, Gauges and Console.