It's the number 14 Fuse.
The bulbs on trailer look good.Lights on truck work.Might be ground not sure.Looks ok.
It has a separate fuse .I bet you have a trailer connection. The correct fuse is noted in the owners manual.
Does it have trailer light wiring also? check that too.
I have a 2004 Ford truck F150 V8 5.4 L .. do I need to replace the PCV valve that is causing bad back up condensation
location of flasher relay ford 150 2004
1998 ford f150 5.4 liter v8 triton 4x4 20 amp fuse is not blown but has no power to it for the trailer stop & turn but has running lights
Check the trailer light connections.
lower the tailgate, remove the 2 screws on the side when you lower the tailgate, pull assembly out and replace
Check the fuse panel under the hood and not there the fuse panel under driver-side dash or on the in that area
How do I replace the block heater in my 1998 F150 4.6L?
Need more info. Which lights are you refering too.
There is a video on youtube that will show you. Just search for "Ford F150 dome light" and there will be a video showing you how to. Oh my god it was Soooo easy! I was thinking it would be hard myself.