Troubleshooting Trailer Wiring that Works with One Truck But Not Another
Updated 03/15/2016 | Published 03/13/2016
Question:
Okay so my 07 Silverado will not work with my boat trailer. We hooked up my trailer to a s10 and they worked fine. We hooked up my Silverado to a different boat trailer and they worked fine. I dont know why my truck wont work with my trailer. The ground was fine with no issues and everything is new so no corrosion problems.
asked by: Danny
Expert Reply:
It could be a somewhat weak ground on the trailer that allows the lights to work with one vehicle but not with another. What you can try doing is running a ground wire from each of the light assemblies back to the main ground of the trailer. That should help especially if you have a fold away style coupler on your boat trailer.
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