GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Holden 🢒 2007 🢒 WM Sedan 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Ignition Lock Cylinder Replacement

Removal Procedure
  1. Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection .

    2. Caution: Refer to SIR Caution in the Preface section.

  2. Disable the SIR system. Refer to SIR Disabling and Enabling .
  3. Remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
  4. Remove the steering wheel. Refer to Steering Wheel Replacement .
  5. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  6. Remove the inflatable restraint steering wheel module coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .
  7. Remove the theft deterrent exciter module. Refer to Theft Deterrent Module Replacement .

    8. Object Number: 1959845 Size: SH
  8. Insert the ignition key (2) into the ignition lock cylinder (3), and turn to the ON position.

    9. Important: Insert a 2.5 mm pin (1) into the locking pin hole (4) to depress the spring loaded ignition lock cylinder locking latch in order to release the ignition lock cylinder from the ignition lock cylinder housing (5).

  9. Release the ignition lock cylinder locking latch.
  10. Remove the pin (1) from the locking pin hole (4).
  11. Remove the ignition lock cylinder (3) and ignition key (2) assembly from the ignition lock cylinder housing (5).
  12. Remove the ignition key (2) from the ignition lock cylinder (3).

Installation Procedure

    Object Number: 1959841 Size: SH
  1. Insert the ignition key (1) into the ignition lock cylinder (2) and turn to the ON position.

    2. Important: The ignition lock cylinder latch must fully engage and lock into the ignition lock cylinder housing (3).

  2. Install the ignition lock cylinder (2) and ignition key (1) assembly into the ignition lock cylinder housing (3).
  3. Turn the key to the OFF lock position.
  4. Remove the ignition key (1) from the ignition lock cylinder (2).
  5. Install the inflatable restraint steering wheel module coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .
  6. Install the theft deterrent exciter module. Refer to Theft Deterrent Module Replacement .
  7. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  8. Install the steering wheel. Refer to Steering Wheel Replacement .
  9. Install the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
  10. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection .
  11. Enable the SIR system. Refer to SIR Disabling and Enabling .