Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1848 (HVAC System - Manual) >> Repair Instructions >> Defroster Actuator Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Defrost Actuator, Screws & Evaporator Case Assembly
    GM1284981Courtesy of GENERAL MOTORS CORP.
  1. Align the defroster actuator with the defroster door shaft and rotate into position.
    2. NOTE: Refer to Fastener Notice .
  2. Install the defroster actuator screws to the HVAC module.

    Tighten:  Tighten the screws to 1 N.m (9 lb in).

  3. Connect the electrical connector to the defroster actuator.
  4. Install the communication interface module, if equipped. Refer to Communication Interface Module Replacement .
  5. Install the left side insulator/closeout panel. Refer to Instrument Panel Insulator Panel Replacement - Left Side .
    6. IMPORTANT: Any time a mode actuator or the HVAC control module is replaced, the HVAC control module must be calibrated to ensure proper air distribution.
  6. Calibrate the mode actuators by simultaneously pushing the A/C and RECIRC buttons on the HVAC control module 3 times each, within 2 seconds of initial push.
    • The A/C and RECIRC button LED's will flash while this calibration is taking place.
    • The calibration will take anywhere between 10-30 seconds depending on battery voltage.
    • The LED's will quit flashing when the calibration is complete.
  7. Cycle the ignition and verify proper operation.
scientia non olet · About Mike's Workshop Manuals