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Old 07-28-2016, 08:26 PM   #1
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Trailer Brake Issues

Yesterday my F250 gave an error message stating a wiring fault on trailer. My F250 has the integrated trailer brake controller. At that time, the trailer brakes did not work. Nothing like towing 12,000 +#'s with no brakes.
I bought some electrical contact cleaner and used it on the connector cord. Try as I might, no brakes. I also used a file to ensure good electrical contact. No help.
After reading about the error message in the truck manual there was a comment about the safety break away switch. Today, I pulled the safety break away pin and the brakes locked up tight as they should. I replaced the break away pin and now the brakes operate normally.
What???
Any ideas anyone?


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Old 07-29-2016, 09:38 AM   #2
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Sounds like a poor contact inside break away switch which you corrected be operating the switch. You may want to cycle a few more times to be sure a good contact is made. Glad you posted this because I'm having weak braking issues on my 26RR. Tow vehicle is 2012 F150 factory brake controller. That's one thing I didn't do yet that's next on the list.
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Old 08-16-2016, 09:44 PM   #3
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These 7 pin connectors leak. The water shorts/corrodes inside the back of the connector. Fix is less than $100 if you DIY! I


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Old 08-16-2016, 10:17 PM   #4
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Your story sounds quite a bit like the one in this thread that's ongoing, although it's for a Chevy.

He has it at the dealer now (7th time, I believe) so we don't yet know if he has a fix, but reading all the responses, it kind of sounds like his emergency brake may have gotten turned on and fed voltage backwards into the brake controller, which doesn't like it.

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Old 08-17-2016, 07:46 AM   #5
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I will not leave Goshen until it is fixed. Lippert and Wildcat are pointing fingers at each other. I will get both of them together and tell them to just get it fixed, and don't put me in the middle.


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Old 08-17-2016, 08:04 AM   #6
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If possible you should try plugging your truck into another trailer and your trailer into another truck. Might help narrow down where the problem lies.
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Old 08-17-2016, 08:30 AM   #7
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Issue is in the trailer. 100% sure of that. Axels are Dexter, not slippery. On my way to ring their bell.


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Old 08-17-2016, 09:23 AM   #8
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Do you still have the molded on 7-way connector on the umbilical? If so, I recommend changing it to an aftermarket plug.

If you haven't opened up the junction box that the umbilical goes into, I suggest doing that as well and remaking all the connections. Or getting the mfg. to do it.
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Old 08-17-2016, 12:14 PM   #9
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Just had a face to face discussion the Dexter service guy. He will have his technicians here to do an electrical test on the system. I suspect an intermittent ground is the issue. Finding it may be difficult but that is their job. He has assured me the problem will be resolved by Friday.


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Old 08-18-2016, 11:34 AM   #10
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Dexter is replacing all the brakes and power lines to them. They found a worn wire that was coming in contact with the axel and grounding out the power to the brakes. Click image for larger version

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