7 pin wiring issues

[ChaseMosby]

Hey guys I recently bought a 2019 and tow with it 2-3 times a week. Since I bought it I have to unplug my trailer every time I shut the truck off. This trailer works fine with my 24 f250 never had any light issues but it stays on constantly even if the truck is off on my ram. I checked at the plug with a meter and have a constant 12vdc on + and checked it with a trailer pin tester and it read 12vdc constant as well. I read somewhere online that on ram trucks they always have 12vdc but why is this and if that’s true than it would make sense trailer lights are on all the time ???

Need advice.


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