F 350 2WD Super Duty V8-5.4L VIN 5 (2006)
R1-R2
Normal Operation
When the headlamp switch is placed in the parking lamps ON position, voltage is routed to the cab marker lamps through circuit 14 (BN). The cab
marker lamps receive ground through circuit 57 (BK).
Possible Causes
-
Circuit 14 (BN) open
-
Cab marker lamp