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General Category >> Rubber Side Down! >> brake light allways on
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Message started by Kaffe on 06/09/25 at 14:13:01

Title: brake light allways on
Post by Kaffe on 06/09/25 at 14:13:01

Hi, family

I installed new brake switches, and while testing them, I noticed that they didn't affect the brake light (it remained on even when no brakes were pressed). So, I unplugged both switches, and the brake light stayed on, even when neither switch was connected to the electrical system. If I remember correctly, if I remove both switches, the brake light should remain off. For me to turn off the brake light, I have to unplug it or power off the bike. I checked the connections and wires, and they appear to be fine. Besides the switches, what else and where should I look to find what's wrong?

Thanks Ya'll! :)

Title: Re: brake light allways on
Post by ThumperPaul on 06/09/25 at 18:27:53

Are you sure it's not the "tail light"? The tail light should turn on/off with the ignition (some gov't safety requirement or something). The brake light portion of the bulb should only illuminate when a brake lever/pedal is applied.

It a "combination lamp". 12V 21/5W

https://www.partzilla.com/product/suzuki/09471-12128?ref=886b7cc0d62e0d38e409c6e330753e899dbdbfb4

Title: Re: brake light allways on
Post by Kaffe on 06/09/25 at 20:01:38

You think it might be the bulb itself? I'll give it a try. However, the bike has the stock turn signals and stop light, and if I remember correctly, the turn signals and running lights are the same as the front, and the stop light only turns on when the brakes are activated. Also, the running lights are only working when using the turn signals. I attached a photo of the bike in idle and the lights on, and the right turn signal active.

Getting the bulb tomorrow and trying it out, will update!

Title: Re: brake light allways on
Post by verslagen1 on 06/09/25 at 21:41:25

2903040407620 wrote:

correct, turn off both brake switches and the brake light is off.
1st thing I'd check is if the brake light is wired correctly. early bikes have bullet connectors and you can wire them wrong.
take off the pillion and you'll find 3 connectors that head to the tail light.
if is possible to wire the running light to the brake switches and vice versa.
the dimmer of the 2 is the running light and should be on all the time.
the brighter is the stop light and should be connected to the brake lights.