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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1484 (HVAC Systems - Automatic) >> Repair Instructions >> HVAC Control Module Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect the electrical connectors (1) to the HVAC control module (2).
  2. Important:  Ensure that the HVAC control module tabs (3) lock into place.
  3. Install the HVAC control module (2) into the IP (4).
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Install the HVAC control module screws.
  5. Tighten 
  6. Tighten the screws to 1.9 N.m (17 lb in).
  7. Install the IP accessory trim plate. Refer to TRIM PLATE REPLACEMENT - INSTRUMENT PANEL (I/P) ACCESSORY (CHEVROLET)  or TRIM PLATE REPLACEMENT - INSTRUMENT PANEL (I/P) ACCESSORY (OLDSMOBILE)  or BEZEL REPLACEMENT - INSTRUMENT PANEL (I/P) CLUSTER (CHEVROLET)  or BEZEL REPLACEMENT - INSTRUMENT PANEL (I/P) CLUSTER (GMC/OLDSMOBILE)  in Instrument Panel, Gages and Console.
    Fig 1: Installing HVAC Control Module To Instrument Panel
    G01596983Courtesy of GENERAL MOTORS CORP.