Interior Lamps Entry Illumination

When the driver uses the door key in order to unlock the doors, the Body Control Module (BCM) receives a door unlock signal. The BCM must have inputs that indicate that the ignition switch is OFF, the courtesy lamp switch is OFF and all the doors are closed. The BCM will then activate the interior lamps. The courtesy lamps will remain on, approximately 20 seconds after the door is closed. If the ignition switch is turned to either the RUN or START position the courtesy lamps will turn off immediately.

When the driver uses the remote function accouter transmitter to unlock the doors, the BCM will keep the courtesy lamps on approximately 20 seconds. If the ignition switch is turned to either the RUN or START position the courtesy lamps will turn off immediately. When a door is opened and closed with the ignition not in RUN or START the courtesy lamps will illuminate for 20 seconds.

The [body control module (BCM)] module processes the inputs and the controls. The ambient light sensor supplies the BCM with a signal for daytime conditions or for low light conditions.
^ The ambient light sensor
^ The Body Control Module (BCM)
^ The Instrument Panel Cluster (IPC)

Driver controls include the following components.
^ The emergency flasher switch
^ The fog lamp switch
^ The headlamp switch
^ The interior lamp switch
^ The IP dimmer switch
^ The stoplamp switch
^ The turn signal switch