Windshield Header and Roof Rail Courtesy/Reading Lamps

These lamps have switches that allow the operator to turn them on when the courtesy lights are off. The switches, when on, provide ground to these lamps, turning them on. The switches obtain ground through circuit 350. Power to these lamps is provided by the Body Control Module (BCM) through circuit 1393, so that they are protected by the inadvertent load (battery rundown) protection in case they are left on.