Trunk Lamp: Description and Operation

Voltage is present at the Luggage Compartment Lamp Switch at all times through the ROOM Fuse and the Luggage Compartment Lamp bulb.

Opening the liftgate causes the Luggage Compartment Lamp Switch contacts to close, allowing current to flow through the ROOM Fuse, the Luggage Compartment Lamp, and the Luggage Compartment Lamp Switch to ground. The Luggage Compartment Lamp illuminates.

The Central Processing Unit can also ground circuit 333 (GN) to turn on the courtesy lights when circuit 300 (R/W) to the Door Courtesy Lamp Switches is grounded. The Keyless Entry Module also grounds circuit 333 (GN) to illuminate the cars interior when activated.