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Discussion Starter · #1 ·
Well, I just picked my truck up from the dealer. Everytime I pull a trailer with brakes, it says trailer disconected on my dash. Now I have 3 Ford trucks. We have a 96 350 2wd dually, an 01 350 4wd flatbed dually, and an 08 250 FX4. The exact same trailers with the exact same adapter plugs work on the two F-350's, but not my 250. The service tech told me that I should rewire my trailers from 6pin connectors to 7 pin connectors that the Tow Command system is not designed for an adapter. Now, the lights work and if I pull the brake lever on the command unit, the trailer brakes will work; as it says trailer disconnected on the dash. Has anyone else had this problem? Does it make sense that this should be happening to anyone?

BTW, I have tried 2 different styles of adapter plugs. 1 from U-haul with their label on it and another from tractor supply that has lights on it showing power to everything.
 

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Grumpy Non-Socialist
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Well, I just picked my truck up from the dealer. Everytime I pull a trailer with brakes, it says trailer disconected on my dash. Now I have 3 Ford trucks. We have a 96 350 2wd dually, an 01 350 4wd flatbed dually, and an 08 250 FX4. The exact same trailers with the exact same adapter plugs work on the two F-350's, but not my 250. The service tech told me that I should rewire my trailers from 6pin connectors to 7 pin connectors that the Tow Command system is not designed for an adapter. Now, the lights work and if I pull the brake lever on the command unit, the trailer brakes will work; as it says trailer disconnected on the dash. Has anyone else had this problem? Does it make sense that this should be happening to anyone?

BTW, I have tried 2 different styles of adapter plugs. 1 from U-haul with their label on it and another from tractor supply that has lights on it showing power to everything.
I haven't had the problem you describe, but I immediately rewired my trailer for the 7-pin RV type plug as soon as I got this truck. I figured I'd probably
never tow the trailer with another truck. It works flawlessly. Something I
really like about the '08 integrated controller is it actually modulates the
trailer brake pressure according to pedal pressure. The add-on controller
in my other truck didn't do that.
 

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duct tape & zip ties
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Just an idea for you. But you can wire a pigtail off the wiring harness. Then you have two plugs one 6 pin and one 7 pin. I did this with my trailer. I have it wired for my F-250 and I have the old standard 4 prong plug on it with no brakes. I have it wired like this because I loan out my trailer to my buddy who does not have a brake controller. All you need to do is wire in a 12inch pig tail off the wiring harness. Then you have the trailer wired up for all your trucks.
 

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sounds like a controller fault the only difference is th 6 pin does not have a reverse light circuit but that should not affect the operation
 

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Discussion Starter · #5 ·
Does anyone else use an adapter plug or am I the only one?
 

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I am getting the deeping with the trailer disconnected on my dash on my 06, very very annoying. I hoped to find a solution here.
 
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