Fail Safe Operation: Notes
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
Operation of vehicle systems depends on power mode. There is a fail-safe plan in place should PMM fail to send a power mode message. Fail-safe plan covers modules using exclusively serial data control of power mode and modules with discrete IGNITION signal inputs.