Has anyone heard of needing a heavy duty flasher after getting your vehicle wired up for a trailer harness? Last fall my buddy took his 2000 Chevy s10 to uhaul to get a reciever hitch and wiring harness installed. Well a few weeks later I was following him and noticed he was signaling the wrong way and when he hit the breaks his reverse lights would come on. He just finally took it back to uhaul about two weeks ago and the told him there was nothing they would do since it was past 90 days and the problem was that he needed a heavy duty flasher.
I personally have never heard of someone needing this for a trailer harness and would have thought they would have tested it and told him at the time he got it installed. I’ve wired up a few of my trucks before and never had an issue. What do you guys think?