I've read most of the posts on the bad tailgate switches & have not replaced it yet. I first checked my fuse (#4) & found the fuse is good but there is no power to the fuse. I took the side panels off ,unbolted the fuse panel,pulled it out & checked the wires on the back side to make sure nothing came unplugged. It all looks good ,but no power @ fuse. Is there another fuse or relay that powers fuse#4???