Car Trailer Wiring What Could Be Wrong With My Car Wiring That My Blinkers And Break Lights No Longer Work On My Boat Trailer?

What could be wrong with my car wiring that my blinkers and break lights no longer work on my boat trailer? - car trailer wiring

First I had to brake and tail lights. Then the fuse blew on my tail lights in an attempt to go blinders. Replace the fuse for tail lights of cars and now have only the tail lights of the trailer after 10 hours of research on this problem. Have you replaced the connectors on the car and boat trailer, without success. All lights on the car work. 2003 Honda Element.