WIRING FAULT ON TRAILER? ANYONE? - Ford Powerstroke Diesel Forum
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Old 01-09-2011, 03:20 PM
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WIRING FAULT ON TRAILER? ANYONE?

so i was pulling my 2 place sled trailer and all of a sudden i hit the brake and it beeeeeeeeeps and tells me there is a wiring fault on trailer. i thought ok, that sucks, but thats cool my truck knows that......
well i unhooked that trailer later that day, hoped in the truck and pulled out the drive way, hit the brake and the it beeeeeeeped and told me the same thing, now after 50 days of intermittent beeeeeeps when i hit the brake, im about to run it into a telephone pole lol.
the cazy thing is that it dosnt happen all the time it doest matter if the trailer is there or not. driving me nuts

pleeeeeaaassseeeee tell me what i should do.

btw, there is nothing wrong with my trailer lights lol
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Old 01-09-2011, 04:05 PM
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Method of trailer hook-up / where are you plugging it in / 4 pin or seven pin plug.

If I am guessing about your setup correctly, sounds to me like you've got some gunk or something in the backside of your seven pin connector thats mounted to the truck under the rear bumper. They get gunked up rather easy, but they come apart rather easy too and not hard to clean. Hope this helps.
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Old 01-09-2011, 04:06 PM
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Send a message via Yahoo to Dave
Clean the gunk of the connector
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Old 01-09-2011, 07:36 PM
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hey your trailer ***** might be loose happen to me a few times every time i hit a bump it would go off
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Old 01-09-2011, 07:36 PM
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can say wire?
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Old 01-09-2011, 08:37 PM
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Check the connection where the truck wire harness plugs into the back of your 7/4pin plug under you bumper. This is a problem connection on these trucks water gets in there and causes problems. I had this very problem and ended up replacing the plug after repeated cleanings and no problems sense. Good Luck
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Old 01-10-2011, 04:52 AM
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Have you had snow lately? The reason I am asking is my truck has done this also. What the culprit was the salt the DOT uses gets in the plug causing a slight short making the the system think it has a trailer fault. Hope this helps.
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