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Can a Junction Box on a Trailer Short Out?  

Question:

Can a junction box on RV short out

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Expert Reply:

Junction boxes like # 3375601101 have independent terminals for each function that don't connect to each other. It would be very possible for a connection to go bad or lose connection, but it is not normal for an entire junction box with all its functions to go bad. I've attached a trailer wiring diagram to assist.

It sounds like you may have lost multiple functions, so I recommend checking your ground connection as that could absolutely impact multiple functions and then check vehicle fuses if the vehicle side trailer connector is not working.

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Jason S

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