LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2002 >> Aztek AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 935 (HVAC Systems - Automatic) >> Repair Instructions >> HVAC Control Module Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: The Key should be in the off position when connecting the electrical connectors to ensure proper calibration.
    Fig 1: HVAC Control Module
    GM659558Courtesy of GENERAL MOTORS CORP.
  1. Connect the electrical connectors to the HVAC control module.
  2. Install the HVAC control module into the instrument panel, ensuring that the HVAC control module retaining tabs lock into place.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the screws from the HVAC control module.

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

  4. Install the instrument panel accessory trim plate. Refer to Bezel Replacement - Instrument Panel (I/P) Cluster in Instrument Panel, Gages and Console.
    5. 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.
  5. Start the vehicle and let run for one minute.
scientia non olet · About LEMON Manuals