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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 5ENABLING PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Enabling Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Enabling 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.
  1. Remove the key from the ignition.
  2. Connect the I/P module connector (1).
  3. Install the CPA (2) from the inflatable restraint I/P module connector (1) located behind the RH insulator panel.
    4. Fig 1: Identifying Inflatable Restraint IP Module Connector
    GM262989Courtesy of GENERAL MOTORS CORP.
  4. Install the RH insulator panel.
    5. Fig 2: Locating SIR Fuse
    GM628316Courtesy of GENERAL MOTORS CORP.
  5. Install the SIR Fuse.
  6. Install the console accessory wiring junction block access hole cover.
  7. Staying well away from all inflator modules and pretensioners, turn ON the ignition.
    1. The AIR BAG indicator will flash 7 times.
    2. The AIR BAG Indicator will then turn OFF.
  8. Perform Diagnostic System Check - SIR  if the AIR BAG indicator does not operate as described.
RENDER: 1.0x

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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.