running lights ok but no brake or turn signals
Where do I look first...the running lights work but no brake or turn signals....lights work on truck but not trailer
Forum Discussion
Had the same thing happen once, it was the trailer fuses on the truck. I was away and used some fuses I knew I didn't need at the time (seat heaters etc.) The only thing I found that may have caused this was the under bumper 7-way plug got water in it driving in heavy rain while we were not towing? I sealed up the back side of the plug and never had another problem.
