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Old 06-05-2015, 05:01 PM   #1
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Join Date: Mar 2014
Location: Northern Colorado
Posts: 244
Trailer Wiring Fault

Drove to the local campground today in heavy rain & just as we pulled on to our site the TV display said we had a 'wiring fault on trailer' . Truck display gives no additional info on the problem & I could find nothing wrong with the light operations on the trailer. Trailer brakes seemed to be working fine on the drive over too.

Any idea where I should start to isolate the cause? Or should we just chalk it up to something (the 7-pin plug perhaps) got wet? I had left the 7-pin harness laying in the truck bed overnight & we had heavy rain then too.

2014 Wildcat 312QBX
2014 Ford F350 SD 4X4 CC LB 6.7L PSD
Bob & Debbie, USAF Retired
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Old 06-05-2015, 05:49 PM   #2
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Location: greensburg pa
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Might be water causing the problem - I think a little dielectric grease would help that.


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Old 06-05-2015, 05:52 PM   #3
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Location: Minnesota
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That is usually just a connection problem. Water or the plug came a bit loose from trailer to truck.
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trailer, wiring

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