Where Are The Trailer Light Fuses On A 2011 Ford F-250 Lariat

Updated 04/20/2018 | Published 04/19/2018

Question:

The last time I had my trailer hooked up all lights on trailer worked fine. When getting ready for spring outing I noticed that the left turn/brake and flasher was not working on the trailer. Right side works flawlessly. All lights on truck work as they are required. Can't find my owner's manual to determine which fuse and or relay I need to check. Can you help?

asked by: Tom. B

Expert Reply:

I would start by checking location 74 which is the relay for the trailer tow left-hand stop/turn function. Another place to check is location 100 which is the trailer tow turn signal function. You could also check location 70 which is the trailer tow backup lamp function.

If these locations seem to be fine, then the problem may be with the actual wiring somewhere. Trace the wiring and look for and repair any damage you find. A circuit tester like Item # PTW2993 can be really helpful when you do this.

I have attached a video for you to check out.

expert reply by: Brint H