Operation CHARM: Car repair manuals for everyone.

Battery Run Down Protection

The battery run down protection system provides protection against parasitic loads, excessive battery drain, and high current loads related to the courtesy lamp circuit. The battery run down protection system also protects the battery against run-down from the courtesy lamp circuit to the level which prevents the vehicle from starting. The BCM turns OFF the courtesy lamp circuit after the ignition switch is turned from the RUN position to the OFF position and 20 minutes (1216 seconds) have elapsed without a lamp request Input. You must perform one of the following actions in order to return the BCM to normal operation once the battery run down protection has shut the interior lamps OFF.
^ Shut OFF all lamps and close all doors.
^ Turn the ignition switch from the OFF position to the ON position.