Keyless Entry Interior 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 all of the interior courtesy lamps. All of the courtesy lamps will remain on approximately 20 seconds after the door is closed. If the door locks are activated to the LOCK position, or if the ignition switch is turned to either the RUN or START position, all of the courtesy lamps will turn off immediately.

When the driver uses the remote function actuator transmitter to unlock the doors or presses the panic button, the BCM will keep the courtesy lamps on approximately 20 seconds. If the door locks are activated to the UNLOCK or LOCK position, or if the ignition switch is turned to either the RUN or START position, the courtesy lamps will turn off immediately. The BCM will also keep the courtesy lamps on approximately 40 seconds after an alarm event is completed.