Century V6-3.1L VIN J (2005)
Vanity Lamp: Description and Operation
INSIDE REAR VIEW MIRROR LAMP
The inside rear view mirror lamp is turned ON by the I/P dimmer switch, the inside rear view mirror 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 lamp low control circuit low, providing ground to the inside rear view mirror lamp and all
courtesy lamps.
The inside rear view mirror lamp can be turned on from the inside rear view mirror switch. The BCM supplies voltage through the courtesy lamps supply
voltage circuit when the BCM is awake. Manually turning on the inside rear view mirror switch provides a ground path.
