no brake lights all of a sudden?

[growler]

Test light connected to (+) side of battery, then touched to black/white wire - Test light glows
Key off. Moved test light clip to (-) side of battery, then touched white wire - nothing, brown wire nothing.
Key on. With test clip still on (-) side of battery, touched white wire - test light glows, touched brown wire, test light glows.

Then I decided to test the rear brake switch. Using Steve's post, it didn't seem right that the white wire was working even though I wasn't using any brakes. So with the key off, I connected the test light to the (+) side of battery, then touching the soldered wires on top of the switch. Both of them made the test light glow. With the key still off I moved the test light clip to the (-) side of battery. Then neither wire made test light glow.

With the key on , and test clip connected to (+) side of battery, neither light up.
With the key on, and test clip connected to (-) side of battery, both light up.

Do I have a bad switch?
Could a bad spring be the culprit? Here is a short video of me actuating the rear brake lever.

https://youtu.be/aFWrFFUhBn0

This is where I was testing on the switch.

[Steve]

Check that the front switch is not stuck ON.

.

[growler]

Good call. I'll check on that tomorrow. Thanks, Steve.

[growler]

So I unscrewed the front brake switch a turn or two, and slid it back and forth as I was squeezing and releasing the brake lever. No change in the rear lights, both we constantly on from the moment I turned the key on.

Took lever out to inspect, and here are a couple photos. This master cylinder needs a rebuild for sure. However, the brake switch slides easily back and forth, and has spring in it (returns quickly.) How else can I test it?

Oh by the way, the wet area is not brake fluid. I had shot a little Deoxit in there.

[fastbysuzuki]

Check out this drawing to confirm the front switch is assembled ok
image.jpg

[growler]

Yes, it is.

[growler]

Alrighty, so I took apart the switch to see what was going on, and I'm pretty sure this isn't supposed to be bent up.

I cleaned everything up, and reassembled, and now it's working. Going to see if I can just order this one part and get it fixed. I probably damaged it when (incorrectly) installing my new brake lever. Derp.

[growler]

Is it item #8 on this parts diagram?

http://www.partsoutlaw.com/oemparts/a/suz/50d401d7f8700230d8b4e5ad/right-handle-switch

[cowboyup3371]

Yes but getting number 7 should include all of that.

[growler]

I got a new contact for 4 bucks shipped. Fixed!