Dome Lamp: Description and Operation

DOME LAMP

The dome lamp is turned ON by the I/P dimmer switch or during illuminated entry.

During illuminated entry or when the I/P dimmer switch is ON the BCM wakes up and then energizes the courtesy lamps supply voltage circuit, suppling voltage to all interior lamps. The BCM pulls the courtesy lamps low control circuit low, providing ground to the dome lamp and all courtesy lamps.