Courtesy Lamps

Voltage is applied at all times through I/P Fuse Block CTSY/PWR MIR Fuse to the Body Control Module (MALL). When a door is opened or the Interior Lamp Control is operated, the MALL Module provides a ground path to the Courtesy Lamps. The MALL Module supplies voltage to the Courtesy Lamps during Inadvertent Power (CKT 1732. The Courtesy lamps, which includes the Reading, Dome, and Rail Lamps (if equipped), then light. After the closing of all doors, the MALL Module will provide the Interior with a ground for about 25 seconds, provided no other inputs are received.