Conditions for Setting the DTC
WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
The microprocessor sets this DTC if it cannot write to non volatile memory. The DTC is also sets if the microprocessor can not run an accurate check sum on the non volatile memory.