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Old Nov 21, 2016 | 12:26 PM
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GoFstTrnLft's Avatar
GoFstTrnLft
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Electrical Issues

I own a 2011 F350 dually with the 6.7 in it. It has 136000 on it and zero mods. I was driving over the weekend and the traction control light, brake light, and the ABS lights all came on and the information center displayed Check Brake System. We were towing our 5th wheel when this happened. The brakes on the pickup and trailer both work and we have no problems stopping. About every 15 minutes or so this message pops up and it chimes again. My insight is reading a U0418 code. We are stopped now and the code and alert message is still popping up without the trailer. All fluid levels are where they should be.

We are also getting a check engine light and my Insight is reading the codes P2020 and P20E8.

I can reset the codes dealing with the reductant leakage and low pressure, but not the codes dealing with the brake system.

I have had my pickup in to 2 different ford dealers for these issues and they cannot find anything wrong. I did notice that this time when the Check Brake system warning appeared that the pick up started lunging a bit, we lost power to the stereo and the windshield wipers came on. Our fuel mileage has remained the same and the pickup still tows like a beast.

Does anyone have any real life fixes for what I am experiencing? Any help or guidance is appreciated.
 
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Old Nov 23, 2016 | 01:35 PM
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Well I found on another site the answer. It ended up being a combination of the muti function switch and the rear speed sensor. Took it into Ford and they diagnosed it, agreed, replaced and so far so good.
 
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