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6.7L Power Stroke Engine and Drivetrain Discussion of the 6.7L Power Stroke diesel engine and drivetrain in the 2011-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.7L Power Stroke engine.

Thread: '2012 F250 Trailer Issues Reply to Thread
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  Topic Review (Newest First)
10-10-2018 05:55 PM
HeavyAssault The four wire plug is not going to trigger a status change with the truck.

There may be a harness issue on the trailer. Maybe try another 7-way style trailer to see if it's the trailer or the truck.
10-08-2018 06:16 PM
Bobcat Rod
'2012 F250 Trailer Issues

I have an F250 2012, TCB is factory installed. With a gooseneck trailer fully connected, all lights work, the truck still shows that the trailer is disconnected. If I move the truck and trailer and apply the brakes the trailer brakes instantly lock up. All the fuses are good. I have even replaced the connector on the trailer. I have also hooked up my 4 wire trailer plug, truck still says trailer not connected. Obviously electrical issues are not my strong point. Any ideas?

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