License Plate Lamp: Description and Operation

The front park lamps are made up of the front park/turn signal lamps and the front sidemarker lamps. The rear park lamps are made up of the rear tail/turn signal lamps, rear park lamps, rear sidemarker lamps, and license lamps.

The headlamp switch is used to operate the park lamps and license lamps. Turning the headlamp switch to the park position will turn ON the park lamps. The park lamps can also be illuminated by the BCM during Daytime Running Lamp operation in low light mode.

When the headlamp switch placed in the PARK position battery voltage is supplied through the headlamp switch to both the TAILLAMPS fuse and the FRT PARK LPS fuse. Battery voltage is then applied through the TAILLAMPS fuse and the FRT PARK LPS fuse to the front and rear park lamps and the license lamps illuminating the lamps. The rear park lamps and license lamps receive ground at all times from G302. The front park lamps receive ground from G101.

The park lamps can also be controlled by the park lamp relay during DRL operation in low light mode. Both the coil and the switched sides of the park lamp relay receive battery voltage at all times. When the BCM is in Daytime Running Lamps low light mode, the BCM then applies a ground through the park lamp relay coil control circuit to the park lamp relay. This energizes the relay closing the switch contact and applies battery voltage to both the TAILLAMPS fuse and the FRT PARK LPS fuse. Battery voltage is then applied through the TAILLAMPS fuse and the FRT PARK LPS fuse to the front and rear park lamps and the license lamps illuminating the lamps. The park rear lamps and license lamps receive ground at all times from G302. The front park lamps receive ground from G101.