Yes it is a new truck . Headed to Newfoundland this summer , so a diesel was in order for my summer truck.. These trailers tow nice with a 1500 , but I figure , go big or go home ....plus its easier on fuel .
Hope you figure out the problem .Also check how tightly the wire is strapped to the motor. They have a tendency to just pull it over and tie it to the frame where ever it ends up . I loosened mine and found that the rubber boot that is supposed to waterproof the motor was cracked....silicone time.
You can buy spray that waterproofs electrical components ('fluid film' rings a bell) to spray on the back of the switch ...I'll be doing that soon.
It was a rainy few days at Algonquin Prov park...tarps kept us dry.
Wayne --Belle River (Windsor), Ontario
2013 Sunset Trail Reserve 25RB..
2015 White Chev Silverado 2500HD 4x4 (6.0 l gasser)
2003 Mountain Star 890SBRX Truck Camper