Roof Rail Reading Lamps

These lamps have switches that allow the operator to turn them on. The switches, when on, provide ground to these lamps, turning them on. The switches obtain ground through circuit 650. The BCM does not turn on these lamps with the rest of the interior courtesy lights. Power to these lamps is provided by the BCM through circuit 328, so that they are protected by the inadvertent load (battery rundown) protection in case they are left on.