Park Lamps

The park lamps system includes the headlamp switch on the instrument panel and the BCM. The LED front park lamp and LED unit marker lamps each have a path to ground at all times through their connection to the headlamp and dash wire harness. The headlamp and dash wire harness has takeouts with eyelet terminals that are secured to the body sheet metal. The LED rear park/tail lamp and side marker LED units and the license plate lamp bulbs each have a path to ground at all times through a takeout and eyelet terminal of the body wire harness that is secured by a ground screw to the body sheet metal.

The BCM monitors a hard wired multiplex input from the headlamp switch. The BCM responds to this input by controlling a battery voltage output to the appropriate lamps through high side drivers on the front and rear, right and left lamp driver and control circuits.

The BCM provides a battery saver (load shedding) feature for the park lamps, which will turn these lamps OFF if they are left ON for more than about eight minutes with the ignition switch in the LOCK position. The BCM also provides a fail-safe feature for the park lamps, which will turn the park lamps and low beam headlamps ON automatically if there is no input available from the headlamp switch. The BCM also provides a fail-safe feature for the park lamps that will turn the park lamps and low beam headlamps ON automatically whenever a loss of CAN bus communication is detected with the ignition switch in the ON position.