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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1097 (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 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Refer to SIR Service Precautions .
    Fig 1: Locating SIR Fuse
    GM628316Courtesy of GENERAL MOTORS CORP.
  1. Turn the steering wheel so that the vehicle's wheels are pointing straight ahead.
  2. Turn OFF the ignition.
  3. Remove the key from the ignition switch.
  4. Remove the console accessory wiring junction block access hole cover.
    IMPORTANT: With the SIR Fuse removed and the ignition ON, the AIR BAG indicator illuminates. This is normal operation, and does not indicate an SIR system malfunction.
  5. Remove the SIR Fuse.
    6. Fig 2: Locating Inflatable Restraint Steering Wheel Module Coil Connector
    GM628317Courtesy of GENERAL MOTORS CORP.
  6. Remove the LH insulator panel.
  7. Remove the connector position assurance (CPA) from the inflatable restraint steering wheel module coil connector (1) located at the base of the steering column.
  8. Disconnect the steering wheel module coil connector.
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.