Courtesy Lamp: Description and Operation

Circuit Description
Battery voltage is applied at all times from fuse 25 to the map lamps, the trunk lamp the door ajar, the trunk ajar warning indicators and the room lamp (without sunroof/overhead console assembly (with sunroof). When the appropriate lamp switch is closed, a ground path is provided to the respective lamps through the ETACM and causing the lamps to go on.

The room lamp/overhead console assembly is controlled not only by a door switch (controlled by ETACM), but also by a room lamp switch in the room lamp/overhead console assembly. They are turned on and off manually. The room lamp can be turned on and off manually, depending on the position of the room lamp switch. The room lamp can also be turned off so it will not come on with the door open.