Envoy, Rainer, Trailblazer 2006-2007

Ignition Switch

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Removal & Installation



  1. Disconnect the negative battery cable.
  2.  
  3. Disable the airbag system, as outlined in the Chassis Electrical Section.
  4.  
  5. Remove the hush and knee bolster.
  6.  
  7. Remove the steering column trim covers.
  8.  
  9. With the key installed, turn the key to the RUN position.
  10.  
  11. Install a hex wrench into the hole on top of the lock cylinder housing. Push down on the hex wrench to release the tab on the lock cylinder inside the lock cylinder housing.

    Click image to see an enlarged view

    Fig. Push down on the hex wrench to release the tab on the lock cylinder inside the lock cylinder housing

  12.  
  13. Slide the lock cylinder out of the lock cylinder housing.
  14.  
  15. Disconnect the passlock and key buzzer from the lock cylinder housing.
  16.  
  17. Insert into the lock cylinder housing

    Click image to see an enlarged view

    Fig. Release the tabs on the ignition switch using ignition switch connector release tool J 42759

  18.  
  19. Pull the ignition switch out of the lock cylinder housing.
  20.  
  21. Disconnect the connector from the ignition switch.
  22.  

To install:

  1. Verify the alignment of the gear in the ignition switch. If gear is not in position shown, turn gear in ignition switch until you reach the correct position.
  2.  
  3. Use a screwdriver to rotate the lock cylinder housing gear counterclockwise until it hits a stop. In order to reach a stop while rotating the lock cylinder housing gear you MUST push and hold in the solenoid on the electric park lock.
  4.  
  5. Connect the connector to the ignition switch.
  6.  
  7. Insert the ignition switch into the lock cylinder housing. The tabs on the ignition switch MUST be seated inside the lock cylinder housing for proper installation.
  8.  
  9. Use a screwdriver to rotate the lock cylinder housing gear clockwise to the start position-allowing it to spring return into the RUN position.

    Click image to see an enlarged view

    Fig. Use a screwdriver to rotate the lock cylinder housing gear clockwise to the START position

  10.  
  11. Align the lock cylinder and install the lock cylinder into the lock cylinder housing.
  12.  
  13. Connect the passlock and key buzzer into the lock housing.
  14.  
  15. Install the steering column trim covers.
  16.  
  17. Install the hush and knee bolster.
  18.  
  19. Enable the airbag system, as outlined in the Chassis Electrical Section.
  20.  
  21. Connect the negative battery cable.
  22.  

 
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