Connect with us

12V Dual intensity LED problem

Discussion in 'LEDs and Optoelectronics' started by Racso, Apr 14, 2011.

Scroll to continue with content
  1. Racso


    Apr 14, 2011
    Hi All
    I hope someone can help me out here. I am installing Dual intensity LED lights on my wife's motorcycle. When I tested them from a battery they work fine.
    Yellow = Running
    Blue = Brake
    I hooked up black and yellow and the light came on, I then added blue to positive and light got brighter. Good so far!
    When I hooked them up to the bike using the same colour combo I had no lights at all. If I swithced yellow and blue I would get runnung lights but nothing on the brake circut. I put a meter on the bike and found out that the running lights are at 12V (key on,not running) and the brake wire has .1 volt. I think that this .1 volt is screwing things up for me. Is there any way I can remove the .1 volt from the brake wire using a resistor,doide??? anything?
    The bike is Fuel Injected so I hope the computer doesn't need that .1 volt to work.

    I really don't know anything about electronics and have basic knowledge on wiring 12 Volt systems. If you can help please make the answer as simple as possible.
    Thanks Racso
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    It sounds to me that your bike may be switching a ground rather than a +12V signal to the brake light.

    I wouldn't have thought that overly likely, but I'm no auto-electrician.
  3. jcurrie


    Feb 22, 2011
    your right Steve all of the modern automotive brake circuits as do most of the other circuits are a groung interupt type .
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day