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Home >> Cadillac >> 2004 >> Escalade EXT >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC Systems - Manual >> Repair Instructions >> HVAC Control Module Replacement >> Installation Procedure

Installation Procedure

    IMPORTANT: The Key should be in the off position when connecting the electrical connectors to ensure proper calibration.
    Fig 1: View Of HVAC Control Assembly
    GM363018Courtesy of GENERAL MOTORS CORP.
  1. Connect the electrical connectors to the HVAC control assembly.
  2. Install the HVAC control assembly.
  3. Install the accessory switch assembly to the instrument panel. Refer to Accessory Switch Replacement in Instrument Panel, Gages, and Console.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the screws from the HVAC control assembly.

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

  5. Install the instrument panel storage tray.
  6. Install the instrument cluster trim plate bezel. Refer to Bezel Replacement - Instrument Panel (I/P) Cluster in Instrument Panel, Gages, and Console.
    7. IMPORTANT: Do not adjust any controls on the HVAC control module while the HVAC control module is calibrating.
    If interrupted improper HVAC performance will result.
  7. Start the vehicle and let run for one minute.
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