Conditions for Setting the DTC
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The restraints ID that is stored in the SDM does not match the restraints ID that is stored in the BCM and/or the VIN that is stored in the SDM does not match the VIN that is stored in the PCM.