GM Service Manual Online
For 1990-2009 cars
Makes 🢒 Chevrolet 🢒 2004 🢒 C-Series Medium Duty Truck C6/7/8 - Mexico 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 HVAC Control Module Replacement

Removal Procedure

    Object Number: 219949 Size: SH
  1. Remove the IP bezel assembly screws.
  2. Remove the IP bezel assembly.
  3. Remove the radio. Refer to Radio Replacement in Entertainment.

    4. Object Number: 585404 Size: SH
  4. Remove the HVAC control module screws.
  5. Remove the HVAC control module from the instrument panel.
  6. Disconnect the electrical connectors.

Installation Procedure

    Object Number: 585404 Size: SH
  1. Connect the electrical connectors.
  2. Install the HVAC control module to 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 HVAC control module screws.

    4. Tighten
    Tighten the screws to 2 N·m (18 lb in).

  4. Install the radio. Refer to Radio Replacement in Entertainment.

    5. Object Number: 219949 Size: SH
  5. Install the IP bezel assembly.
  6. Install the IP bezel assembly screws.

    7. Tighten
    Tighten the screws to 2 N·m (18 lb in).