Aurora 2001-2003

Ignition Lock Cylinder

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect battery negative cable from battery and properly isolate to prevent accidental reconnection.
    NOTE
    Always turn the ignition OFF when connecting or disconnecting battery cables, battery chargers, or jumper cables. Failing to do so may damage the Powertrain Control Module (PCM) or other electronic components.


    NOTE
    The battery is located beneath the rear seat cushion.

  4.  
  5. Disable the air bag system, as outlined in the Chassis Electrical Section.
  6.  
  7. Apply the parking brake.
  8.  
  9. Remove or disconnect the following:

    Cluster trim plate bezel
     
    Radio
     
    HVAC control module assembly
     

  10.  
  11. Insert the ignition key and turn the ignition switch to RUN.
    1. If the keys are unavailable or the ignition lock cylinder is seized proceed with the following:

      Remove the fasteners securing the ignition switch to the retainer.
       
      Push and release the retaining tab at the rear of the ignition switch.
       
      Remove the ignition switch through the radio opening in the retainer.
       
      Protect the immediate work area with suitable material such as clean shop towels or a clean fender cover.
       
      Locate the surface for the ignition switch lock cylinder release button on the plastic ignition switch housing and center punch a location on the "rib" approximately 3/8 inch rearward, toward the key entry end of the cylinder release button.
       
      Drill a pilot hole through the plastic housing with a 1/8 inch drill bit.
       
      Drill a larger hole at the pilot location, and slightly into the ignition switch lock cylinder surface to break the release button retaining spring using a 1/4 inch drill bit.
       
      Use a magnet and remove the retainer tab.
       
      Grasp the ignition switch lock cylinder and remove it from the switch housing.
       
      Remove any plastic "flash" from the drilling operation, and using compressed air blow out the ignition switch assembly.
       

    2.  

  12.  
  13. Look through the radio opening in the IP retainer and locate the release button on the side of the ignition switch.
  14.  
  15. Depress and hold the ignition lock cylinder retaining tab, located on the right lower side of the ignition switch, using a flat-bladed tool or other suitable tool.
  16.  
  17. Pull outward on the ignition cylinder in order to remove the cylinder from the ignition switch.
  18.  
  19. Remove the reader/exciter module from the ignition lock cylinder.

    Click image to see an enlarged view

    Fig. Orientation of ignition lock cylinder for removal and installation.

  20.  

To install:

  1. Install the reader/exciter module to the ignition lock cylinder.
  2.  
  3. Turn the new ignition lock cylinder to the run position.
  4.  
  5. Turn the ignition switch to the run position.
  6.  
  7. Slowly push the ignition lock cylinder into the ignition switch until fully seated. It may be necessary to slightly depress the release button as it passes by the 1/4 inch hole previously drill in the ignition switch housing.
  8.  
  9. Reinstall the ignition switch.
  10.  
  11. Position the ignition lock cylinder with the key installed into the opening in the ignition switch.
  12.  
  13. Press the ignition lock cylinder into place. The lock cylinder retaining tab will produce an audible click when fully seated.
  14.  
  15. Using light force, pull on the lock cylinder in order to ensure the lock cylinder is engaged and secured in place.
  16.  
  17. Install the HVAC control module assembly.
  18.  
  19. Install the radio.
  20.  
  21. Install the IP cluster trim plate bezel.
  22.  
  23. Install the IP center trim plate.
  24.  
  25. Connect the negative battery cable.
  26.  
  27. Inspect the ignition switch for proper operation in all positions.
  28.  
  29. Release the parking brake.
  30.  
  31. Enable the air bag system.
  32.  

 
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