Most likely it's an open, not a short. Sounds like bad grounds to me. Make sure bed is grounded to frame, light housings are grounded to bed, light sockets are clean and grounded to housings.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.