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Thread: brake light not coming on - wiring schematic needed

  1. #1
    jid
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    brake light not coming on - wiring schematic needed

    Does anyone happen to have a wiring schematic for the A2? Over the weekend i learned by brake lights aren't coming on when i hit the pedal. I would love to trace out the wires but thought i'd start here first. some of you have forgotten more about the A2 than i'll ever learn... just hoping this isn't in that category of things that have been forgotten!

    J

  2. #2
    Neutron
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    Probably need a new brake light sensor. the cable with the red end on attached to the master cylinder under the dash. Ill search for a part number. I believe you need to bleed the brakes to replace it



    This thing:

    David Wilson likes this.
    the high profile toy thrower

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    Lepton Positron's Avatar
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    Brakes? they only slow you down.. and ruin your track times..

    Pretty common failure.

    I never could find the short one but, some trimming required. Don't forget the washers and carry one for spare.
    https://www.pegasusautoracing.com/pr...asp?RecID=5028
    AtomII #73 for sale, PM for details.

    Turning money into smoke and noise since 2006.
    Member "I drove the Brammo mule with Tom S." club.


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    Proton DarthChicken's Avatar
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    jid, unplug the connector that plugs into the sensor shown in the above post and short the two wires together with a jumper wire. I bet the brake lights turn on.

    I know the bulbes aren't loose, I hardwired in some LEDs.

  5. #5
    jid
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    Aha! I'll give it a try! Is there an in-line fuse somewhere in there for the LEDs also? Just curious. Can always order a replacement part but i do hope it is a simple fix!

    Quote Originally Posted by DarthChicken View Post
    jid, unplug the connector that plugs into the sensor shown in the above post and short the two wires together with a jumper wire. I bet the brake lights turn on.

    I know the bulbes aren't loose, I hardwired in some LEDs.

  6. #6
    Proton DarthChicken's Avatar
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    no inline fuse that I put in.

  7. #7
    jid
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    Quote Originally Posted by DarthChicken View Post
    no inline fuse that I put in.
    Cool. So the wires are hot and ground? Is that how the two wires work?

  8. #8
    Neutron
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    There is a fuse for the brake light in the first fuse box. That would be the best to check first

    the high profile toy thrower

  9. #9
    Lepton
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    I got it!

    Should you have this issue, and want the part, it's a "Goodridge BL Banjo Bolt 3/8-24 Zinc". Part # 03-6036.

    And BEST of all, should you be on the road somewhere and have one fail, you can get them at your local Harley Davidson dealer.

  10. #10
    Proton DarthChicken's Avatar
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    The switch is just closing the circuit, its not a ground. So its either all hot or all ground, I'm not sure. Which is why I said jumper, and not ground

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