Need to locate the fuse that controls my trailer running lights on my 2008 F 350 Diesel

sounds like the plugin may be your problem,if it had a blown fuse nothing would work.

Thanks for the reply but on another site I got my answer-- is was Fuse #42 under the hood. I changed it and now my running lights also work. But again thanks for the reply. I knew it must have been a fuse because when I connected the trailer to my sons truck all the lights worked including the running, but on mine only the brake and signal lights worked.

glad you got it fixed,

hey there i was gonna ask the same question but before i did that i read replys below and i believe i got answer to my question thanks all. IBO MUSA TRUCKING,LLC

I hade the same problem and the fues is good but all my lights work on the truck but I still can get the running lights to work on the trailer when its hooked up but my brakes and blinkers work when the trailer is hooked up just no running lights

but I have a 2011 ford 350 super duty

Mine was same #42 30 amp cube fuse idk why it blew was able to piece together for running lights . wish Ford would label the fuse cover.

Thanks by the way your question answer saved the night. It's nice to have brake & turn lights at least but sucks looking back in dark an seeing a trailer with no lights on.

2011 F 350 HAS NO POWER AT 7 WIRE PLUG IN FOR TRAILER BRAKES. I HAVE ALL LIGHTS AND PU SHOWS NO TRAILER CONNECTED.

There's a cold air intake where the fuse box is suppose to be, and I can't find it. Welp

Need to find fuse that controls running lights and master tow hookup for 2005 Ford Econoline 350 RV Chateau Sport This is a question

so would it be the cube fuse also if i only have 1 side of brake and turn signal and no running lights

My tail lights work on my 2015 f250 work but can't get the lights to work on my trailer.If my truck light works ,then why can't my trailer lights work .They are connected together

Try 25 AMP fuse number 100. It controls brake lights and turn signals. Running lights are usually Number 26

Got no left turn signal for trailer from my 2015 Ford f350 super duty what fuse do I look for

Can any one help me I have a 09 F350 heavy duty but my running lights doesn’t work everything else does work

I have a 2019 F350. The right side of my boat trailer lites do not work. Left is fine all lites on truck work . What fuse works right side of a trailer

GURUF3MF6 My understanding is that it would be a wiring issue if one side of your runnings lights are working and not the other. Either the main power wire (brown) or the ground wire (white). if they are on their own set of white wire it might not be properly grounded. If they all ground right to the trailer itself then most likely it's a break in your brown power wire.

I have a question I have a 2006 f350 I have running lights and no turn or brakes

#42 is not used on my truck, so no idea.