Circuit/System Description
WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
When the roof rail reading lamps switches are in the OFF position, the body control module (BCM) supplies the roof rail reading lamps park lamps with voltage and ground. The BCM maintains voltage and ground for a set amount of time for the illuminated entry option. When the roof rail reading lamp switch is in the ON position the BCM only supplies the voltage for the roof rail lamps