GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2002 🢒 Avalanche - 4WD 🢒 Body and Accessories 🢒 Body Control System 🢒 HVAC Control Module Replacement

Removal Procedure

    Object Number: 659558 Size: SH
  1. Remove the instrument panel accessory trim plate. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in Instrument Panel, Gages and Console.
  2. Remove the accessory switch from the instrument panel. Refer to Accessory Switch Replacement in Instrument Panel, Gages and Console.
  3. Remove the screws from the HVAC control module.
  4. Depress the control assembly retaining tabs and remove the HVAC control module from the instrument panel.
  5. Disconnect the electrical connectors from the HVAC control module.

Installation Procedure

    Object Number: 659558 Size: SH
  1. Connect the electrical connectors to the HVAC control module.
  2. Install the HVAC control module into the instrument panel.

    3. 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.

  3. Install the screws to the HVAC control module.

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

  4. Install the accessory switch to the instrument panel. Refer to Accessory Switch Replacement in Instrument Panel, Gages and Console.
  5. Install the instrument panel accessory trim plate. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in Instrument Panel, Gages and Console.