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Home >> GMC >> 2003 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Supplemental Inflatable Restraint System) >> Repair Instructions >> SIR Disabling and Enabling Zone 5 >> Disabling Procedure

Disabling 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. Turn the steering wheel until the vehicle's wheels are pointing straight ahead.
  2. Turn OFF the ignition.
  3. Remove the key from the ignition.
    4. 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.
  4. Remove the SIR fuse from the fuse block.
    5. Fig 1: Removing The Connector Position Assurance (CPA) From The I/P Module Yellow 4-Way Connector - Zone 5
    GM748421Courtesy of GENERAL MOTORS CORP.
  5. Remove the connector position assurance (CPA) from the I/P module yellow 4-way connector (1) located behind the I/P support.
  6. Disconnect the I/P module yellow 4-way connector (1).
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