Trailer running lights question

[bassarama]

Thanks

The truck has an original towing package, so the trailer hitch and the connector plug were there form the manufacturer...which explains the way all the wiring is professionally done, ( neat work and shrink warp on each crimp)

Again, all lights on the truck work. For the towing plug, there's is only power for brakes and blinkers, not for running lights.

Joe