Courtesy Lights: Notes
The courtesy lighting is located along the bottom edge of the front doors. If the ignition switch is in the OFF position (key withdrawn), the lamps come on when one of the front doors is opened. The courtesy lighting stays on for 20 minutes (if a door is left open), after which it is turned off automatically. The lamps go out if the doors are closed.
If the ignition switch is in the ON position (+15 or +54), the courtesy lighting remains on until both front doors are closed.
The DICE is fed with +30 for the courtesy lighting. When the DICE is notified by the bus, it switches the courtesy lighting on or off. I.e. the DICE supplies +30 or cuts the feed from pin 1 on the control module to the bulbs for the courtesy lighting.