Hopelessly Lost: Brake Light Stuck On 2017 T100 Black

Did you pull apart the switch block ? , If so something has bridged across terminals.

 

Yup that's the switch block , one either side.
There or just under the base of the brake lever ! It can stick the switch down ...

 

Wish you well to sort
Advice for future is to take some pix on the mobile as you go, it really helps with reassembly.

 

Sounds a bit daft but I quite often take a time lapse when I'm doing stuff that has a lot of bits, saved my bacon when I was doing fork seals as I had a spare washer from the internals left over but seen it fall out in the time lapse.

Good luck with getting the switch back together, just take your time and think about what the switch is trying to do, you'll soon figure out the puzzle!

 

Also, another thing to do is get yourself a haynes manual for your bike, they are a god send

 

DC Rider
Welcome to the family. Yes it should be a simple fix. The front brake switch unit should be removable by just one Philips screw. May be best to remove the lever first and then rebuild it and make sure the switch is pushing and releasing as it should. Bu any good moto electrician should be able to help fairly easily. Lots of luck. When you get sorted do hit the upload a file button bottom right corner and send us all a picture of the bike.
Joe

 

I don't know if you have resolved your problem but I discovered recently that both brake light switches operate the opposite way to what you logically might think. That is, on is when the button is released not pressed if that makes sense. In this case the brake light is permanantly on because the brake switch is not being pushed in enough by the brake lever and needs adjusting.