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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 681 (STEERING WHEEL & STEERING COLUMN)REPAIR INSTRUCTIONSELECTRONIC COLUMN LOCK MODULE REPLACEMENT (FLOOR SHIFT)INSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Electronic Lock Module & Mounting Screws
    GM306295Courtesy of GENERAL MOTORS CORP.
  1. Install the electronic lock module (1) to the steering column housing.
  2. Install the electronic lock module (1) mounting screws (2).
    3. Fig 2: Ignition Switch, Electronic Lock Module & J 42759
    GM664261Courtesy of GENERAL MOTORS CORP.
  3. Install the ignition switch (2) to the electronic lock module (2).
  4. Install the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement - On Vehicle .
    5. Fig 3: Identifying Key Alarm Connector At Ignition Lock Cylinder Case
    GM306267Courtesy of GENERAL MOTORS CORP.
  5. Connect the passlock electrical connector (1) from the lock module
  6. Rotate the key alarm switch connector to the electronic lock module.
    7. Fig 4: View Of Electric Park Lock & Ignition Lock Cylinder Case Assembly
    GM368489Courtesy of GENERAL MOTORS CORP.
  7. Snap the electric park lock (2) onto the electronic lock module (1).
    8. Fig 5: Electric Park Lock & Connector
    GM389654Courtesy of GENERAL MOTORS CORP.
  8. Connect the electric park lock (1) electrical connector (2).
    9. Fig 6: Shaft Lock Shield & Turn Signal Cancel Cam
    GM389656Courtesy of GENERAL MOTORS CORP.
  9. Install the following parts to the steering shaft:
    1. The turn signal cancel cam (3)
    2. The shaft lock shield (4)
    10. Fig 7: View Of Bearing Retainer
    GM330127Courtesy of GENERAL MOTORS CORP.
  10. Install the J 23653-SIR to the steering shaft and compress the shaft lock shield.
  11. Install the lock shield retainer to the steering column shaft.
  12. Remove the J 23653-SIR from the steering column shaft.
  13. Install the SIR coil. Refer to SIR COIL ASSEMBLY .
  14. Enable the SIR system. Refer to ACTIVATING SYSTEM in SIR.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.