Parking Lamp: Description and Operation

CIRCUIT OPERATION
Power for the parking lamp portion of the headlamp switch is provided on circuit F33. Circuit A13 in the Power Distribution Center (PDC) powers a 15 Amp fuse located in cavity 9 of the junction block. The A13 circuit is protected by a 20 Amp fuse located in cavity F of the PDC. Circuit F33, which connects to the other side of the fuse in the junction block, connects to the headlamp switch and is spliced to provide power for the instrument cluster.

when the headlamp switch is in the PARK or ON position, it connects circuit F33 to circuit L7. From the headlamp switch, circuit L7 splices to power the front parking lamps, rear tail lamps, and the license lamp. It also provides an input to the Body Control Module (BCM) indicating the lamps are ON, to the radio for illumination, and to the dimmer switch.

Grounding for the lamps is provided in two different locations. The left front lamp is grounded at the left front frame rail. Grounding for the right front lamp is provided at the right front frame rail.