Courtesy Lamps

The courtesy lamps include the instrument panel courtesy lamps, the rear compartment courtesy lamps, and the rear view mirror lamps. Turn the courtesy lamps ON manually by placing the interior lamp switch in the DOME position, by opening a door or opening the trunk. 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 remain illuminated approximately 30 seconds after the driver removes the ignition key.

The C/LALDL fuse in the instrument panel electrical center supplies battery positive voltage to the coil and switch side of the CTSY LP relay 42. The BCM controls the ground to the CTSY LP relay 42 coil side. When any door or if the trunk is opened, the jam switch contacts close and the BCM receives a door-open or trunk open input. If the BCM receives a door lock or unlock input or an trunk open input, the BCM will activate the CTS LP 42 relay providing battery positive voltage to all of the interior courtesy lamps. You may use some of the courtesy lamps as reading lamps by placing the lamp switch in the ON position.

The courtesy lamps will normally turn OFF using the theater dimming feature. The BCM provides a pulse width modulated ground to all courtesy/reading, dome and inside rear view mirror lamps for the theater dimming feature. The BCM turns OFF the courtesy lamps if a door lock command is received after all of the doors are 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.