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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 635 (Steering Wheel And Steering Column) >> Repair Instructions >> Electronic Column Lock Module Replacement (Floor Shift) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disable the SIR system. Refer to DISABLING & ACTIVATING AIR BAG SYSTEM .

    Important:  Remove the SIR coil from the steering shaft and let the SIR coil hang freely.

    Fig 1: Steering Column Lock Plate Compressor
    G01667206Courtesy of GENERAL MOTORS CORP.
  2. Remove the SIR coil. Refer to SIR COIL ASSEMBLY .
  3. Install the J 23653-SIR  to the steering shaft and compress the shaft lock shield.
  4. Remove the lock shield retainer from the steering column shaft.
  5. Remove the J 23653-SIR  from the steering shaft.
  6. Remove the following parts from the steering shaft:
    1. 6.1. The shaft lock shield (4)
    2. 6.2. The turn signal cancel cam (3)
    7. Fig 2: Steering Shaft Lock Shield & Turn Signal Cancel Cam
    G01667207Courtesy of GENERAL MOTORS CORP.
  7. Rotate the steering column lock cylinder to the OFF-LOCK position.
  8. Disconnect the electric park lock (1) electrical connector (2).
    Fig 3: Electric Park Lock Electrical Connector
    G01667208Courtesy of GENERAL MOTORS CORP.
  9. Unsnap the electric park lock (2) off of the electronic lock module (1).
    Fig 4: Electric Park Lock
    G01667209Courtesy of GENERAL MOTORS CORP.
  10. Rotate the key alarm switch connector from the electronic lock module.
  11. Disconnect the Passlock electrical connector from the electronic lock module.
    Fig 5: Passlock Electrical Connector
    G01667210Courtesy of GENERAL MOTORS CORP.
  12. Remove the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement - On Vehicle .
  13. Disconnect the ignition switch (2) from the electronic lock module using the J 42759  .
  14. Remove the ignition switch (2) from the electronic lock module (2).
  15. Let the ignition switch (2) hand freely.
    Fig 6: Ignition Switch
    G01667211Courtesy of GENERAL MOTORS CORP.
  16. Remove the electronic lock module (1) mounting screws (2).
  17. Remove the electronic lock module (1) from the steering column housing.
    Fig 7: Electronic Lock Module
    G01667212Courtesy of GENERAL MOTORS CORP.
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