Envoy, Rainer, Trailblazer 2006-2007

Removal & Installation

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  1. Remove the I/P accessory trim plate.
  2.  
  3. Remove the control module retaining screws.
  4.  
  5. Depress the HVAC control module retaining tabs and remove the HVAC control module from the instrument panel.
  6.  
  7. Disconnect the electrical connectors from the HVAC control module.
  8.  

To install:


NOTE
The key should be in the OFF position when connecting the electrical connectors to ensure proper calibration.

  1. Connect the electrical connectors to the HVAC control module.
  2.  
  3. Install the HVAC control module to the instrument panel, ensuring that the HVAC control module retaining tabs lock into place.
  4.  
  5. Install the HVAC control module retaining screws and tighten to 1.7 inch lbs. (1.9 Nm).
  6.  
  7. Install the I/P accessory trim plate.
    NOTE
    Do not adjust any controls on the HVAC control module while the HVAC control module is calibrating.

  8.  
  9. Re-calibrate the actuators, as outlined in this section. If interrupted, improper HVAC performance will result.
  10.  
  11. Start the engine and let run for 1 minute .
  12.  

 
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