Running lights but no brake or turn signal
I've hooked up to other trailers and I have the same problems. It really seems to be in my vehicle. Any suggestions.
Forum Discussion
I carry one of these 7-way test adapters in my RV tool box... This adapter has the built-in LED lights to show the truck is provide the correct signals needed.. Takes the guessing out of which blades do what...
Roy Ken
Roy Ken
