Conditions For Setting DTC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 GMC C3500 HD, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC sets when restraints identification stored in SDM does not match restraints identification stored in BCM or when VIN stored in SDM does not match VIN stored in BCM.