Circuit Description
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 Body Control Module (BCM) controls the inadvertent load battery rundown protection feature. The BCM de-energizes the courtesy lamps supply voltage circuit ten minutes after the ignition switch has been turned from the ACC position of the RUN position to the LOCK position of the OFF position.
The BCM restores power to the courtesy lamps supply voltage circuit when the following actions occur:
- The ignition switch is turned from the LOCK position of the OFF position to the ACC position or the RUN position.
- The key is removed from the ignition.
- Any vehicle door is opened.
- The dimmer switch is turned to the DOME position.
- Any interior courtesy light connected to the courtesy lamps supply voltage circuit is turned on.
- The BCM receives a message to unlock the doors from the Remote Control Door Lock Receiver (BCM type 3 or type 4 only).
- A door is unlocked using a key (BCM type 4 only).
The inadvertent load battery rundown protection feature is mileage-sensitive. Vehicles with less than 15 total driven miles have a time-out of 162-198 seconds instead of 10 minutes.