GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 42640 Steering Column Lock Pin

Removal Procedure


    Object Number: 333146  Size: SH

    Note:  If the steering column connectors are disconnected with the ignition in the ON position, the body control module (BCM) will enter a fail enable mode and prevent steering column lock operations. The PCM will also inhibit vehicle motion by disabling fuel. To clear the BCM fail enable mode, disconnect the BCM #25 for 15 seconds.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling.
  2. Disconnect the battery. Refer to Battery Negative Cable Disconnection and Connection.
  3. Caution: The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the SIR coil assembly to become uncentered, which may cause damage to the coil assembly.

  4. Insert the J 42640 .
  5. Remove the knee bolster panel. Refer to Driver Knee Bolster Bracket Replacement.
  6. Caution: Avoid damaging the steering column electronic lock harness by gently removing the plugs installed in the I/P beam. Do NOT twist, pull, bend, cut, or incorrectly route the harness. Damage to the harness will require replacement of the entire electronic lock.

  7. Disconnect the steering column electrical connectors.
  8. Remove the lower steering column shroud. Refer to Steering Column Trim Cover Replacement.
  9. Remove the heater duct.
  10. Remove the telescoping motor. Refer to Telescope Actuator Assembly Replacement.
  11. Remove the tilt motor and bracket assembly. Refer to Tilt Actuator Assembly Replacement.
  12. Remove the intermediate shaft to column through bolt.

  13. Object Number: 1551471  Size: SH
  14. Remove the mounting bolts (1, 2,  3,  4) from the steering column.
  15. Caution: Once the steering column is removed from the vehicle, the column is extremely susceptible to damage. Dropping the column assembly on the end could collapse the steering shaft or loosen the plastic injections, which maintain column rigidity. Leaning on the column assembly could cause the jacket to bend or deform. Any of the above damage could impair the columns collapsible design. Do NOT hammer on the end of the shaft, because hammering could loosen the plastic injections, which maintain column rigidity. If you need to remove the steering wheel, refer to the Steering Wheel Replacement procedure in this section.

  16. With the aid of an assistant, remove the steering column.

Installation Procedure


    Object Number: 333146  Size: SH
  1. With the aid of an assistant, install the steering column.
  2. Install the 2 of the steering column mounting bolts.
  3. Install the pinch bolt for the intermediate shaft to steering column. Finger tighten the bolt only.
  4. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1551471  Size: SH
  5. Install the reminding steering column bolts and tighten in sequence to 24 N·m (18 lb ft).
  6. Tighten the pinch bolt to specifications to 48 N·m (35 lb ft).
  7. Install the tilt motor and bracket assembly. Refer to Tilt Actuator Assembly Replacement.
  8. Install the telescoping motor. Refer to Telescope Actuator Assembly Replacement.
  9. Reconnect the steering column electrical connectors.
  10. Install the heater duct.
  11. Install the lower steering column shroud. Refer to Steering Column Trim Cover Replacement.
  12. Install the knee bolster panel. Refer to Driver Knee Bolster Bracket Replacement.
  13. Remove the J 42640 .
  14. Reconnect the battery. Refer to Battery Negative Cable Disconnection and Connection.
  15. Enable the SIR system. Refer to SIR Disabling and Enabling.