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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1502 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)REPAIR INSTRUCTIONSSIR DISABLING AND ENABLING ZONE 3DISABLING PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Disabling Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Disabling Procedure
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: I/P Fuse Block & SDM Fuse
    GM68610Courtesy of GENERAL MOTORS CORP.
  1. Turn the steering wheel so that the vehicle's wheels are pointing straight ahead.
  2. Turn the ignition switch to the OFF position.
  3. Remove the key from the ignition.
  4. Remove the front floor kick-up panel. Refer to Kick-Up Panel Replacement - Front Floor in Interior Trim.
    IMPORTANT: With the SDM Fuse removed and the ignition switch in the ON position, the AIR BAG indicator illuminates. This is normal operation and does not indicate an SIR system malfunction.
  5. Remove the SDM Fuse from the I/P fuse block.
    6. Fig 2: Steering Wheel Module Coil & CPA
    GM68613Courtesy of GENERAL MOTORS CORP.
  6. Remove the left sound insulator. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gages, and Console.
  7. Remove the connector position assurance (CPA) from the inflatable restraint steering wheel module coil connector located at the base of the steering column.
    8. Fig 3: Steering Wheel Module Coil Connector Removed
    GM68614Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the steering wheel module coil connector located at the base of the steering column.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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.