All rear lights are currently not working though I will say the reverse lights do come on but are very diminished. The reverse bulbs are LEDs that I replaced about 3 years ago but have had no issues with them ever. The other bulbs are regulars.

I did add a pop a lock to the tailgate 2 years ago that I tied into the factory lock/unlock wiring. I also added new headlight assemblies with LEDs 3 months ago. They are still working perfectly as they should.

I have had issues with my backup camera for years now. It comes and goes but 95% of the time it does not work. I have noticed when the lights started messing up my backup mirror also kept turning blue like it was trying to get signal from the backup cam.

Not sure where to start but hoping someone would have an idea. Thanks for any help.

 

Start by adding a description of your vehicle !
Year, engine, trim, ect.... look at my signature for reference

 

2010 XLT 5.4L 4x4 SCREW 5.5ft bed

 

Sounds like a major grounding problem to me @ the rear ??
No regular bulbs light up but led bulbs only appear to work...(leds will power dim or brite because they can power thru another small ground source)
Tipically fords ground wires are black wires...you can trace back from a tailight etc to probably a common ground attached to the frame or to your box....All ground connections will have to be checked & cleaned for proper grounding ....I believe there is also a ground strap box to frame also...
If you have long booster cables (or long piece of wire) connect to ground @ battery & then run to the back & try to hook up directly to a known ground wire for any light & see what lites uo...(it probably will cross ground other lites also)....First this will prove you have a grd. issue........Tedious for sure but that is what you'll have to do until you clean the connection that's causing your problem !!
Your camera may or not be related to above fix ??

 

Thanks for the response. I guess tomorrow ill just play around and try and find connection points and follow wiring. Any recommendations on what to clean connections with?

I will also note that I've always felt like this truck had lots of "soot" build up. I wonder if this is a contributing factor with something not grounding properly. Either way, ill give it a day myself and hopefully I can find it. Thanks again.