Escalade, Suburban, Tahoe, Yukon, Denali, DenaliXL, YukonXL 1999-2005

Removal & Installation

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  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect the electrical connector to the mode actuator that is located on the left side of the air distribution case.
  4.  
  5. Remove the screws.
  6.  
  7. Remove the adjuster links from the control lever.
  8.  
  9. Remove the mode actuator.
  10.  
  11. Adjust the mode actuator by completing the following steps:

    Connect the electrical connector to the actuator.
     
    Turn the ignition switch to the RUN position. Allow the self-positioning of the actuator.
     
    Turn the ignition switch to the OFF position.
     
    Remove the actuator from the electrical connection.

    Click image to see an enlarged view

    Fig. Location of actuator

     

  12.  

To install:

  1. Install the mode actuator.
  2.  
  3. Install the screws.
  4.  
  5. Install the adjuster links to the control lever.
  6.  
  7. Connect the electrical connector.
  8.  
  9. Connect the negative battery cable.
  10.  
  11. Test the circuit operation
  12.  

  1. Remove the floor air outlet duct extension from the floor duct.
  2.  
  3. Remove the center console, if equipped.
  4.  
  5. Remove the screws from the center console duct, if equipped.
  6.  
  7. Remove the center console duct, if equipped.
  8.  
  9. Disconnect the electrical connection at the mode actuator.
  10.  
  11. Remove the mode actuator mounting screws from the HVAC module.
  12.  
  13. Remove the mode actuator as an assembly with the actuator cam.

    Click image to see an enlarged view

    Fig. Mode actuator location

  14.  

To install:

  1. Install the mode actuator as an assembly with the actuator cam.
  2.  
  3. Line up the heater/defroster valve lever with the mode actuator cam slot.
  4.  
  5. Line up the A/C valve lever with the mode actuator cam.
  6.  
  7. Install the mode actuator mounting screw to the HVAC module and tighten to 14 inch lbs. (1.6 Nm).
  8.  
  9. Connect the electrical connection at the mode actuator.
  10.  
  11. Install the center console duct, if equipped.
  12.  
  13. Install the screws to the center console duct, if equipped, and tighten to 14 inch lbs. (1.6 Nm).
  14.  
  15. Install the center console, if equipped.
  16.  
  17. Install the floor air outlet duct extension to the floor air duct.
  18.  
  19. Calibrate the HVAC module actuators.
  20.  

 
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