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Old 07-30-2021, 01:46 PM   #1
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Trailer Disconnect message

I have a new 2021 Ford F150 and my TT is a 2021.5 GeoPro 19fbs. When I connect my GeoPro to the truck and drive about 5 miles I get a message, Trailer Disconnected. My trailer lights and trailer brakes still work. I took the F150 to the Ford dealer and they said that there were no issues. We have set up the TT to the trucks system. Any ideas?
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Old 07-30-2021, 02:29 PM   #2
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Hi ! Welcome to IRV2! We're sure glad you joined us!

Good luck, happy trails, and God bless!
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Old 07-30-2021, 03:17 PM   #3
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Doesn’t sound right. Sure you’ve got the trailer connector in all the way? Maybe there is a loose wire on the truck or trailer side of the connector.
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Old 07-30-2021, 03:25 PM   #4
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Check ground. That's probably 99% of all power issues I see. You may have lights but then the first time you use the trailer brakes "BAM" you get that message.
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Old 07-30-2021, 05:32 PM   #5
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Quote:
Originally Posted by kimanderson View Post
... I took the F150 to the Ford dealer and they said that there were no issues. We have set up the TT to the trucks system. Any ideas?

Wait, you brought the truck and trailer to the dealer who said that there were no issues? Did the message displayed?
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Old 07-30-2021, 07:48 PM   #6
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Welcome to the forum. Sorry I can't help as we travel in a Motorhome.

You are joining a good group of friends here with good information to share. Read the various threads here and ask questions as they come up or add information if you can.

Good luck and enjoy the adventure!
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Old 07-30-2021, 07:53 PM   #7
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When I had intermittent issues similar to yours I discovered a loose ground wire on the trailer. The wire bundle looked good until I wiggled it and the ground wire slipped out of the wire nut.
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Old 07-30-2021, 08:01 PM   #8
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I had the same issue with my 2015 F150 pulling a 12ft utility trailer. Dealership said no issue with factory controller. Only way to check was to take in the trailer for them to diagnose. Too much trouble. I bought an aftermarket brake controller and used that without any further issues. I have since replaced my F150 with a 2021 F250 and have not had any issues towing the same trailer.

When setting up the F250 trailer settings, I started to think about one of the options. You can change the default brake signal to higher. Without proof, I think maybe the F150 was not sending enough electrical signal to the trailer brakes???
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