GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the center console trim bezel. Refer to Instrument Panel Center Trim Panel Replacement in Instrument Panel, Gauges and Console.

  2. Object Number: 683118  Size: SH
  3. Remove the 2 screws and pull the HVAC control unit forward.
  4. Remove the 2 screws and the fresh/recirc switch.
  5. Disconnect the blower speed selector switch electrical connector.
  6. Disconnect the A/C switch electrical connector.
  7. Remove the following from the HVAC control unit:
  8. • The temperature control cable
    • The mode control cable
  9. Remove the HVAC control unit.

Installation Procedure

  1. Install the following to the HVAC control unit:
  2. • The temperature control cable
    • The mode control cable
  3. Connect the blower speed selector switch electrical connector.
  4. Connect the A/C switch electrical connector.

  5. Object Number: 683118  Size: SH
  6. Install the fresh/recirc switch. Secure with the 2 screws.
  7. Install the HVAC control unit to the instrument panel. Secure with the 2 screws.
  8. Install the center console trim bezel. Refer to Instrument Panel Center Trim Panel Replacement in Instrument Panel, Gauges and Console.
  9. Adjust the cables as necessary, refer to the following:
  10. •  Temperature Control Cable Adjustment
    •  Mode Control Cable Adjustment