LuckyLucOnBass
XS650 Member
View attachment 91205 Yes disconnect the yellow wire at the fuse box. Check for continuity from that wire to the frame. If you get a reading other than "I"(nfinity) disconnect the wire from the switch to the to the tail light. Then check the wire from the fuse box to the switch again. If you now get an "I" then you are good for that section. Check the wire from the switch to the light. I think you may be grounded at the fixture.
So I checked for continuity from the brake switch. It's definitely working properly. But you are right, the actual brake light fixture is grounding out at the frame. So I need to figure out how to shield the actual plate/brake-light fixture from grounding out. Plastic screws? I don't know.