Self-Test At Initial Ignition On
WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
The system undergoes a power-up self-test when the vehicle has its initial ignition turn-on. The power-up self-tests are abbreviated if the vehicle ignition switch is turned from some other position to RUN, as might occur in restarting a stalled engine with a vehicle rolling.