Trailer electrical

[pecgary]

I’m new here so if in wrong place I apologize. Now my problem
I have a 2000 3500 Dually have owned couple years. I found a flatbed and installed ( live on farm more functional) cut wires to the trailer plug as had already been butchered installed plug and started tracing with test light have power to plug and external ground. Nothing works
It worked before did swap backed another truck up to it plugged it everything worked fine sorry so long any thoughts would be appreciated

 

[GTyankee]

So your issue is just with the trailer plug ?

all of the rest of your rear lights work ?

You can buy a trailer plug tester

Amazon.com: Ram Pro RV Trailer Plug Light Circuit Tester Adapter 7 Way Blade & 4 Pin Trailer Wiring Tester Trailer Light Wire Circuit Tester for Boat SUV Truck : Tools & Home Improvement

Buy Ram Pro RV Trailer Plug Light Circuit Tester Adapter 7 Way Blade & 4 Pin Trailer Wiring Tester Trailer Light Wire Circuit Tester for Boat SUV Truck: Circuit Testers - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com