2012 F350 6.7L Dually. .. No Right Turn/stop lights.

Lobo2012 · #1 (**permalink**) 02-06-2013, 07:23 AM

First to clarify things.. I do have turn/flasher on front of truck. Just no turn/flasher/ brake lights on rear of truck nor trailer if one is connected. Checked all fuses and bulbs.. Even replaced the fuses just in case. Replaced both left and right relays (75 - 76) under hood. Left relay does click when flashers or turn signals are on.. Right relay never does click. This is my work vehicle (CMV) I pull a gooseneck trailer and must have signals and brake lights to be DOT compliant. Like I stated this is with or without trailer connected and doesnt affect front right turn signal. Please help !!

Black2012 · #2 (**permalink**) 02-06-2013, 07:56 AM

Get a tester and start testing

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sox3 · #3 (**permalink**) 02-06-2013, 12:30 PM

Just wondering, Has anything been done to the truck prior to this happening? Worked on, added or removed accessories etc?

**dfuzz78** · #4 (**permalink**) 02-06-2013, 12:41 PM

Drive it right back to Ford and have them worry about it under warranty!

gr8white · #5 (**permalink**) 02-06-2013, 04:37 PM

I had the same problem once.It was one of the square fuses.I don't remember the fuse # but I believe it is a 25 amp fuse.

C130 · #6 (**permalink**) 02-07-2013, 04:10 AM

I had the same issue and it was a fuse underneath the hood. I carry spare ones now.

**mor4wd** · #7 (**permalink**) 02-10-2013, 03:25 PM

Had the same problem. Like everyone else is saying, it was a 25 amp fuse under the hood labeled "Trailer" or something like that.

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