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My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
Inspect the wiring that was done on the RV or vehicle and see if anything is shorted or incorrectly wired.I have seen issues with the wiring on the RV that can short out or corrode and cause this type of fault here at the trailer connection or running to the rear of the RV.I would have this inspected to see if any issues are found needing repaired or replaced.
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