On my T3, the 2 mid field flashers were always off. I checked the bulbs and they were burned out. Since I didn’t have any replacement 12v leds, I put in the ones from the front two flashers. When I ran the flasher diagnostics, those two flashers were constantly on (which I’m guessing is why they burned out)
This machine is a HUO, but has a rottendog power supply and led ocd, but otherwise has no other mods. Any suggestions on what might cause these flashers to be always on?