I would think the switch, or a leg of it is shorted to ground.
2018 Ram 3500 Crew Cab Laramie 6.7L, Aisin, air ride, Ram puck prep, SuperGlide 20K auto slide.
2018 Bighorn Traveler 4 slide w/Apt.
It’s not what you’ve done that commands respect, it’s what you do.
Happy Campin’