Tail Lamp: Description and Operation

PARK, TAIL, MARKER AND LICENSE LAMPS

The PARK LAMPS Fuse in the I/P fuse block applies battery positive voltage to both the coil and switch side of the PARK LAMP Relay in the I/P fuse block. When the headlamp switch is placed in either the PARK or HEAD position, ground is applied from G202 to the headlamp switch. The headlamp switch then applies the ground through the park lamp switch ON signal circuit to the BCM. The BCM then applies a ground to the PARK LAMP Relay enable circuit. This energizes the PARK LAMP Relay, applying battery positive voltage to all the park, tail, marker and license lamps The park, tail, marker and license lamps are also turned ON when the headlamps are commanded ON by the BCM for low light operation.