Express, Savana, G1500, G2500, G3500, 1998-2005

Ignition Lock Cylinder

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Removal & Installation



  1. Disable the SIR (airbag) system, as outlined in the Chassis Electrical Section.
  2.  
  3. Remove the knee bolster.
  4.  
  5. Remove the steering column trim covers from the steering column.
  6.  
  7. Disconnect the steering column electrical connectors.
  8.  
  9. Remove the wire harness assembly from the steering column and the wire harness strap.
  10.  
  11. Slide the 2 connectors of the turn signal and multifunction switch assembly out of the bulkhead connector.
  12.  
  13. Remove the key alarm connector (1) from the lock module assembly (2) in the following way:
    1. Rotate the key alarm connector (1) 90 degrees.
    2.  
    3. Pull the key alarm connector (1) out of the lock module assembly (2).

      Click image to see an enlarged view

      Fig. Remove the key alarm connector (1) from the lock module assembly (2)

    4.  

  14.  
  15. Remove the passkey connector from the lock module assembly (2).
  16.  
  17. Remove the connector (2) from the electric park lock (1), for vehicles equipped with floor shifters.

    Click image to see an enlarged view

    Fig. Remove the connector (2) from the electric park lock (1)-for vehicles with floor shifters

  18.  
  19. Remove the ignition switch from the lock module using the J 42759.
  20.  

To install:

  1. Install the ignition switch to the lock module.
  2.  
  3. Install the key alarm connector into the lock module assembly.
    1. Push the key alarm connector into the lock module assembly.
    2.  
    3. Rotate the key alarm connector 90 degrees so that the key alarm connector locks into place.
    4.  

  4.  
  5. Install the passkey connector into the lock module assembly.
  6.  
  7. Install the connector (2) to the electric park lock (1) for vehicles equipped with floor shifters.

    Click image to see an enlarged view

    Fig. Connect the connector (2) from the electric park lock (1)-for vehicles with floor shifters

  8.  
  9. Slide the 2 connectors of the turn signal and multifunction switch into the bulkhead connector.
  10.  
  11. Attach the wire harness assembly to the steering column wire harness strap.
  12.  
  13. Connect the steering column electrical connectors to the vehicle.
  14.  
  15. Install the trim covers to the column.
  16.  
  17. Install the knee bolster.
  18.  
  19. Enable the SIR system.
    NOTE
    It may be necessary to reprogram the theft deterrent system if the module was replaced.

  20.  

Refer to the Ignition Switch procedure in this section for servicing the Ignition Lock Cylinder.

Refer to the Ignition Switch procedure in this section for servicing the Ignition Lock Cylinder.

 
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