Conditions for Setting the DTC
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The microprocessor sets this DTC if it can not write to non volatile memory. The DTC is also set if the microprocessor can not run an accurate check sum on the non volatile memory.