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Thread: No brake lights

  1. #1
    Join Date
    Oct 2007
    Posts
    100

    Default No brake lights

    Hi Guys,
    I have an SP3 that currently has no brake lights. I have replaced the bulb. If I put the lights on, the rear lights up fine. If I use the front or rear brake levers, no brake lights.
    Any ideas on what to check next?
    Many thanks.

  2. #2
    Join Date
    Jun 2007
    Location
    Bris Vegas
    Posts
    3,370

    Default

    Jiggle the bulb with your foot on the brake, you may need to clean the contacts. Pull the plugs, look for furrys, reconnect. After that, multimeter or a light bulb and a couple of bits of wire and a power source. The circuit is power to both switch’s, both switch’s are to earth via the bulb. The earth at the bulb is good because tail light goes on.
    Griff
    To infinity and.......

  3. #3
    Join Date
    Oct 2007
    Posts
    100

    Default

    Thanks Griff. There's no fuses or relays in the path? Cheers

  4. #4
    Join Date
    Jun 2007
    Location
    Melbourne, Australia
    Posts
    1,220

    Default

    i often pull the globe and bend the tabs to give more loading. get a test light and see if there is power there.
    Brad The Bike Boy

    www.bikeboy.org

  5. #5
    Join Date
    Oct 2007
    Posts
    100

    Default

    Quote Originally Posted by brad black View Post
    i often pull the globe and bend the tabs to give more loading. get a test light and see if there is power there.
    Hi Brad, Tried that over the weekend. Checked everything I could, still no joy. Looks like I'll be seeing you soon...

  6. #6
    Join Date
    Oct 2013
    Location
    Belgium
    Posts
    585

    Default

    Had this a few times , first check the brake filament on the bulb that it is not broken , if o.k. then take 2 paperclips and bend to form a U shape. Take off both the 2 pin connectors for both brakes and insert the paperclips. Then move to the back of the bike and start fiddling (If a bulb is on it will be hot so use thick gloves)............chances are some fiddling will show something happening (Of course the bulb needs to be inserted in the correct way so that both the raised portions on the back of the bulb are in contact with the 2 copper connections (Make sure these are clean and apply pressure). If all of this still does not solve the problem them trace the wire back to the connection that should run on the LH side of the bike. Open and close this connection a few times to clean............after that it is something major. Personally it always seems to be either the bulb or the connection in the light unit. Good luck.

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