I was wondering because when I troubleshoot tail lights and the blinkers work good it's not the blinker switch. All we can do is take Garz at his word that his blinkers work good and use this info for what it is worth. If your blinkers worked good and you had a bad switch then we really can't use the blinkers working good as an indicator of a good switch. It's been a useful 'tool' over the years at excluding the switch when the blinkers work good. But if you are saying that we can't use this tool......