Brake Switch Working BACKWARDS???? By dhull (Read 1,708 times)

[dhull]

I have a 2008 MC-54-250B with a strange problem. Both brake switches failed last week, which is not that strange for these bikes. I've replaced the rear brake switch twice already because they apparently are known to fail. The strange part came after the replacement switch had been installed for the rear brake.

When I got home after my ride to work last night, I discovered that my brake lights were on constantly. I pulled the left brake handle and they turned OFF. The new switch is working BACKWARDS--the brake lights stay on until the brake handle is pulled.

Even though I figured that this is just a dumb switch, I pulled the two wires off and switched each one to the other terminal, but got the same result.

Any idea why I would get this result?

[Bashan]

The first thing to do is get your multimeter out and set it for continuity. Then test both switches and see what they're doing. You should have no continuity through the switch until you pull the handle. Do that and tell us the result.

[dhull]

Problem solved. My scoot needs Normally Open (NO) switches that close the circuit when activated. The switches that I received were Normally CLosed (NC) switches, so the circuit was closed until the switch was activated, making the brake lights operate backwards.

[cyborg]

It's a crazy mixed up world