Door/Trunk Ajar Indicator/Lamp: Description and Operation
DOOR WARNING LAMPDoor warning lamp is controlled by the BCM.
When one of the doors is opened, ground is supplied to the BCM terminals 10, 11, 14 or 54. The BCM then signals the combination meter (unified meter control unit) via the CAN lines and ground is provided to the door warning lamp.
When power and ground are supplied, the door warning lamp illuminates.