Already checked all fuses. It was factory wired,truck lights and trailer lights run seperate to front of truck. Traced wires to circuit breaker beside fuse box under hood.truck lights and trailer lights both go to breaker butthere is no power on trailer wires coming out of circuit breaker.

 

I'm not sure what you're asking. If you're looking for 12v at the trailer plug then it's only hot when the key is on. The trailer tow pkg has 2 30a fuses and 2 relays under the hood. One for brakes and one for 12v power.

 

Found a blown fuse in the engine fuse block behind the power distribution box on left inner fenderwell. Problem solved.