Conditions for Clearing the MIL/DTC
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
The theft deterrent control module clears the current status of the DTC when it senses a valid, memorized, key code from the ignition key (transponder).