2012 F250 Trailer Light issues
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Mountain Pass
Joined: Feb 2023
Posts: 122
Likes: 34
From: AL
2012 F250 Trailer Light issues
Have a 2012 F250 that is my daily/work truck. I noticed that the running lights on the trailer will work as they should, but nothing else. (Brake, Signal, Hazards). Doesn’t even flash the brakes when i lock/unlock the truck. It is not a trailer issue because they work fine with my dads F150. Any ideas??
Moderator
Joined: Dec 2005
Posts: 2,813
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From: Billings, Montana
Have a 2012 F250 that is my daily/work truck. I noticed that the running lights on the trailer will work as they should, but nothing else. (Brake, Signal, Hazards). Doesn’t even flash the brakes when i lock/unlock the truck. It is not a trailer issue because they work fine with my dads F150. Any ideas??
Logistics Pro
Joined: Jan 2010
Posts: 4,100
Likes: 1,635
Check the trailer wiring fuses in the under hood fuse box. See your owners manual starting on page 321. If you don’t have an owners manual, you can find it here. https://www.fordservicecontent.com/F.../12f23og4e.pdf
Cargo Master
Joined: Feb 2010
Posts: 2,298
Likes: 94
From: Delta, CO
My truck had the factory plug on the bumper & one in the bed, the 1st time I tried to use the one on the bumper I wasn't getting anything but the plug in the bed worked fine.
I ended up pulling the plug apart & giving it a good spray of brake clean & put it back together & everything worked great. Looked like the factory grease on the pins was dried & crusty not letting the pins make contact.
I ended up pulling the plug apart & giving it a good spray of brake clean & put it back together & everything worked great. Looked like the factory grease on the pins was dried & crusty not letting the pins make contact.
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