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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1527 (HVAC Systems - Automatic) >> Repair Instructions >> Mode Actuator Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Steering Column Bracket, IPC & Screws
    GM95727Courtesy of GENERAL MOTORS CORP.
  1. Remove the I/P upper trim pad. Refer to Trim Pad Replacement - Instrument Panel (I/P) Upper in Instrument Panel, Gages and Console.
  2. Remove the instrument panel cluster (IPC) to steering column bracket retaining screws.
  3. Reposition the IPC to better access the inside air temperature sensor duct.
    4. Fig 2: Inside Air Temperature Sensor Aspirator Duct
    GM95661Courtesy of GENERAL MOTORS CORP.
  4. Remove the inside air temperature sensor aspirator duct.
    1. Depress the duct retaining tab and remove the duct from the ignition switch housing bracket.
    2. Use a twisting motion to release the duct from the duct muffler.
    5. Fig 3: Ignition Switch Lock Cylinder Electrical Connector
    GM95718Courtesy of GENERAL MOTORS CORP.
  5. Remove the driver knee bolster bracket. Refer to Trim Panel Replacement - Knee Bolster in Instrument Panel, Gages and Console.
  6. Disconnect the ignition switch lock cylinder electrical connector from the retaining tab on the side of the ignition switch.
    7. Fig 4: Lock Cylinder Electrical Connector & Ignition Switch Bezel
    GM95717Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the lock cylinder electrical connector.
    8. IMPORTANT: Take note of how the ignition switch lock cylinder wire is wrapped around the base of the ignition switch bezel.
  8. Remove the ignition switch bezel.

    Carefully pull to unsnap.

    9. Fig 5: Ignition Switch Retainer & Hazard Warning Switch Wiring Harness
    GM95710Courtesy of GENERAL MOTORS CORP.
  9. Remove the hazard warning switch wiring harness from the ignition switch retainer.
    10. Fig 6: Ignition Switch Retaining Bolts
    GM95715Courtesy of GENERAL MOTORS CORP.
  10. Remove the ignition switch retaining bolts.
  11. Reposition the ignition switch downward.
    12. Fig 7: Mode Actuator & Vacuum Harness Connectors
    GM295281Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the vacuum harness connectors from the mode actuator.
  13. Cut and remove the adjustable plastic tie strap (1) from the base of the mode actuator.
    14. Fig 8: Steering Column Bracket & Mode Actuator
    GM295288Courtesy of GENERAL MOTORS CORP.
  14. Lift to release the mode actuator retaining tab and just begin to slide the actuator toward the steering column bracket.
  15. Remove the air distribution case cover screws.
  16. Remove the air distribution case cover with the mode actuator attached.
  17. Remove the mode actuator from the mode door lever.
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