Hmm…the truck brake lights and turn signal does work. If its in the harness, can I buy a new one from BCB? Its a 2015 trailer and has the coiled wire, in other words no way to change the plug, Id need the entire harness, coiled wire and plug. Not sure where that coiled harness attaches to the trailer wires in the trailer tongue. I have ordered a new light, but I really doubt its the light. I have two spares(not Glo Lights) Ive plugged in and they dont work either.