Electric brake wiring problem
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New User
Joined: Feb 2009
Posts: 3
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Electric brake wiring problem
I have purchased a used 2004 Ford F250 that came with a brake controller, the standard 7pin rv connector and a 6pin goose neck connector in the bed. When I tow using the 7pin to 4 flat adapter everything is fine. When I plug my RV in to the factory 7pin connector and press the brake my speedometer goes to 10mph and the doors lock as if I were moving but I'm not moving at all. It does this in any gear position except reverse. I have not tried anything yet hoping some has seen this issue and can tell me how to fix rather quickly. Any help would be greatly appreciated.
Thanks
Thanks
More Turbo
Joined: Aug 2006
Posts: 576
Likes: 6
From: midland, Ontario
There are two wiring patterns for the 7 pin connectors. One of the pins that changes is the brake power pin. I bet the truck is wired one pattern and the trailer is the second pattern therefore causing weird stuff to happen.
