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trailer computer in productivity screen not working

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Old May 26, 2015 | 06:48 PM
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trailer computer in productivity screen not working

Hi guys,

Got a 2015 f350 lariat, and have noticed that the productivity screen's trailer computer doesn't count milage when I tell it the trailer is connected. When I tell it the trailer is connected, the trailer name in the list turns orange.

I've taken it to the dealer for this and something else, was there for 5 days and they never even looked at the trailer issue. I've also called the Ford number and they won't troubleshoot over the phone.

Anyone have any idea what is wrong with this?
 
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Old May 26, 2015 | 07:57 PM
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Trailer was hooked up? What kind of trailer? Was it connected via the 7 pin or the 4 pin connector?
 
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Old May 27, 2015 | 06:54 AM
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trailer computer

The only trailer that I have right now is a utility trailer with a 4 pin connector. I have plugged it straight into the Ford block and have also used 7 pin adapters in between. no change though, still doesn't count miles.
 
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Old May 27, 2015 | 08:32 AM
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It is not going to on the 4 pin.
 
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Old May 27, 2015 | 02:01 PM
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Originally Posted by senix
It is not going to on the 4 pin.
Thanks for the quick reply's, Senix.

The animations show the 4 pin connectors, and I'm sure it's a similar program running in the F150's if not the same. Not everyone uses trailers with 7 pin plugs... just doesn't make sense why they would restrict this to the bigger trailers...

Do you know how it gets triggered, if it takes a brake control loop? I wouldn't mind hacking into one of my 7-4 pin adapters, adding a resistor, to make this work.
 
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Old May 27, 2015 | 04:52 PM
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Good question, not sure how it recognizes it exactly. Brakes makes the most sense though.
 
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Old May 28, 2015 | 10:35 AM
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Sounds like you would have to get a wiring diagram for your vehicle to figure it out.
 
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Old May 28, 2015 | 02:58 PM
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It is indeed triggered by the brakes being hooked up so the 4 pin won't do it. It's not about the size of the trailer, it only matters if it has electric brakes.
 
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Old May 28, 2015 | 05:41 PM
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This sparked my curiosity again, so I went looking for a trailer brake emulator and found a Tekonsha 6562 on amazon. I guess I'll order one and see what happens. Will be interesting to see if I can leave it plugged into the 7 pin and also have the 4 pin plugged in next to it.
 
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Old May 28, 2015 | 05:47 PM
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Originally Posted by epsail
This sparked my curiosity again, so I went looking for a trailer brake emulator and found a Tekonsha 6562 on amazon. I guess I'll order one and see what happens. Will be interesting to see if I can leave it plugged into the 7 pin and also have the 4 pin plugged in next to it.

Cool find! Since the 4 and 7 ways are wired in parallel it should do the trick. I may buy one myself for testing. I have a more basic one somewhere but this one does a lot more.
 
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Old Jun 1, 2015 | 07:20 PM
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it works! counting miles just like I hoped! thanks guys for helping me find the answer
 
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Old Jun 1, 2015 | 07:27 PM
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Excellent! Good info for others in the future...
 
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