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Enabling Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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 yellow 4-way connector (1) located behind the main I/P support.
    Fig 1: Installing The Connector Position Assurance (CPA) From The I/P Module Yellow 4-Way Connector - Zone 5
    GM748421Courtesy of GENERAL MOTORS CORP.
  3. Install the CPA to the I/P module yellow 4-way connector (1).
  4. Install the SIR fuse to the fuse block.
  5. Staying well away from all air bags, turn ON the ignition, with the engine OFF.
    1. The AIR BAG indicator will flash 7 times.
    2. The AIR BAG indicator will then turn OFF.
  6. Perform the Diagnostic System Check - SIR  if the AIR BAG indicator does not operate as described.
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