Courtesy Lamp: Description and Operation

COURTESY LAMPS

The courtesy lamps include the reading lamps, footwell lamps, and dome lamps. The cargo lamp, footwell lamps, and dome lamp may be manually turned ON or OFF by placing the interior lamp switch in the ON or OFF position. When the driver places the dome lamp defeat switch in the OFF position, these courtesy lamps will be disabled. If a door is opened, the courtesy lamps will illuminate. After all the doors have been closed, the courtesy lamps will remain illuminated approximately 15 seconds after the last door closes. The courtesy lamps will also turn ON prior to any door being opened and will remain illuminated approximately 40 seconds when the driver removes the ignition key. The body control module (BCM) will immediately turn OFF the courtesy lamps if a door lock command is received with all of the doors closed, or if the ignition switch is turned to either the ON or RUN position. Individual power and ground circuits to each lamp are supplied by the BCM except for the reading and vanity mirror lamps which are grounded at G106.

The reading and vanity mirror lamps can be activated individually by the switches integrated within the dome/reading lamp, and vanity mirror. Voltage is supplied by the BCM through the dome lamp circuit with the lamps being grounded at G106.