Exit Illumination
The courtesy lamps will also illuminate for approximately 40 seconds when the key is removed from the ignition prior to any door being opened. The courtesy lamps will remain illuminated for 5 seconds after the doors have been opened.The COURTESY fuse in the IP fuse block, supplies battery positive voltage to the Body Control Module (BCM). When the rear compartment or any door is opened, the door lock switch contacts close and a door ajar input is received by the BCM. The BCM will then supply battery positive voltage to all non dimming interior lamps. The BCM will also pull low the courtesy lamps control circuit, illuminating the courtesy lamps.
The courtesy lamps will normally turn off using the theater dimming feature. During theatre dimming, the BCM provides a pulse width modulated ground to all courtesy lamps that gradually dims the courtesy lamps. The BCM will immediately turn off the courtesy lamps if a door lock command is received with all the doors closed, or if the ignition switch is turned to either the ON or RUN position.
The courtesy lamps will also turn on after an air bag deployment for approximately 15 seconds.