Backup light out.......

[Buckrub]

Wife's truck. ONLY the right (passenger) side. Took back lens out, all 3 lamps appear to be in good shape. Every plug tight. All connections solid.

B/U fuse is good.

Should be a bulb. If it is bad, I can't see it. Looks fine.

Wiring maybe??? I B Stumped.

[Thumper]

Because a bulb "looks" good, doesn't mean it is.

I say bulb.

[Nandy]

swap with good known bulb. First step in almost any type of equipment troubleshooting...

[Buckrub]

Dang. Thought it was an 1157, but it isn't. Thought I had a replacement bulb but don't. If it had been bad, I still couldn't have fixed it. I'll pick up a bulb tomorrow. Or Monday. Or a day that ends in Y.

If that doesn't fix it, I'll back it into a tree and call State Farm.

[Nandy]

That sounds good, however, if you swap with the driver side you would know for sure. If the driver side works I doubt I would be a fuse since they tend to be shared, the other thing would be a loose cable (unlikely) or a bad socket due to humidity. Either way, good luck!!!!

[Big Muddy]

Be sure and spit on the prong end of the bulb before you put it in the socket....provides a good connection, and good luck....sorta like spitting on you fishing hook, when you're doosocky fishing....or, spitting on your two fingers, when you're just doosocking. ;)