GM Service Manual Online
For 1990-2009 cars only

Special Tools

J-42759 Ignition Switch Connector Release Tool

Removal Procedure

    Warning: Refer to SIR Warning in the Preface section.

  1. Remove the driver knee bolster. Refer to Driver Knee Bolster Replacement.
  2. Remove the theft deterrent module. Refer to Theft Deterrent Module Replacement.
  3. Remove the steering wheel theft deterrent lock. Refer to Steering Wheel Theft Deterrent Lock Replacement.
  4. Disconnect the key buzzer from the ignition lock cylinder case.

  5. Object Number: 1413831  Size: SH
  6. Insert release tool J-42759 into the ignition lock cylinder case to release the tabs on the ignition/start switch.
  7. Pull the ignition/start switch out of the ignition lock cylinder case.
  8. Disconnect the electrical connector from the ignition/start switch.

Installation Procedure


    Object Number: 1413832  Size: SH

    Note: The gears between the ignition/start switch and the ignition lock cylinder case must be in the correct position. Failure to do so will cause a misalignment of the gears in the ignition/start switch and the ignition lock cylinder case , which may result in a NO START or BATTERY DRAIN.

  1. Verify the alignment of the gear (1) in the ignition/start switch (2). If the gear (1) is not in the position shown then turn the gear in the ignition/start switch (2) until you reach the correct position.

  2. Object Number: 1413833  Size: SH

    Note: In order to reach a stop while rotating the ignition lock cylinder case gear you MUST push and hold in the solenoid on the electric park lock.

  3. Use a screwdriver to rotate the ignition lock cylinder case gear counterclockwise until it hits the stop.
  4. Connect the electrical connector to the ignition/start switch.

  5. Object Number: 1413834  Size: SH
  6. Insert the ignition/start switch into the ignition lock cylinder case. The tabs (2) on the ignition/start switch MUST be seated inside the ignition lock cylinder case (1) for proper installation.

  7. Object Number: 1413835  Size: SH
  8. Use a screwdriver to rotate the ignition lock cylinder case gear clockwise to the START position allowing it to spring return into the RUN position.
  9. Connect the key buzzer to the ignition lock cylinder case.
  10. Install the steering wheel theft deterrent lock. Refer to Steering Wheel Theft Deterrent Lock Replacement.
  11. Install the theft deterrent module. Refer to Theft Deterrent Module Replacement.
  12. Install the knee bolster. Refer to Driver Knee Bolster Replacement.