My brake light is on all the time? HELP
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Thread: My brake light is on all the time? HELP

  1. #1
    Member floridalawdog's Avatar
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    My brake light is on all the time? HELP

    My brake light was working fine. Then, for no reason, it stays lit all the time, so you cant see a difference when the brake is applied. I put a new bulb in, but that did not alleviate the problem. Could anyone point me in the right direction as to what i can check?

  2. #2
    Senior Member TW-Brian's Avatar
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    The rear brake light is activated by one of two switches, one is activated by the front brake lever and the other is activated by the rear brake pedal. Either one of these switches could be causing the problem you describe. I would check the rear brake switch first because it readily accessible and easy to adjust. The rear brake pedal is connected to a metal rod that is connected to a spring that is connected to the brake light switch. With your lights turned on, pull up on the spring and see if the bake light goes off. It it does, then this switch needs to be adjusted.

    Try this first and then report back.

  3. #3
    Member floridalawdog's Avatar
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    Thanks Brian. I moved that rod up and down, and there was no change. Does that mean that the switch is the problem?c

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    Senior Member Nicoradv's Avatar
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    Quote Originally Posted by TW-Brian View Post
    The rear brake light is activated by one of two switches, one is activated by the front brake lever and the other is activated by the rear brake pedal. Either one of these switches could be causing the problem you describe. I would check the rear brake switch first because it readily accessible and easy to adjust. The rear brake pedal is connected to a metal rod that is connected to a spring that is connected to the brake light switch. With your lights turned on, pull up on the spring and see if the bake light goes off. It it does, then this switch needs to be adjusted.

    Try this first and then report back.
    Quote Originally Posted by floridalawdog View Post
    Thanks Brian. I moved that rod up and down, and there was no change. Does that mean that the switch is the problem?c
    Like Brian stated, there are two switches. Now check the front one.

    At this time, that still does not eliminate the rear switch.

    have you disconnected and reconnected any wiring for whatever reason ?
    If a bike is plated, it's suppose to be ridden, not hauled on a trailer.
    2002 DR650SE, 2001 TW200

  6. #5
    Senior Member Fred's Avatar
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    Good idea r.e. wiring.
    I believe both those switches work by completing a circuit to ground. Thus any of the lead wires to those switches that get pinched and short to ground will create another way to inadvertently activate the brake light.
    I assume a proper 1157 class of bulb properly installed in a socket that is in good shape without any frayed terminal wires shorting across the terminals at socket's base. Don't want running light voltage crossing over to the brake filament side.
    2003 TW200 "Betty Boop"
    2006 TW200 "Nibbler", a.k.a. “Mr.Gizmo"
    Hidden Content All Things Considered I’ld Rather Be Motorcycling

  7. #6
    Member floridalawdog's Avatar
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    No rewiring whatsoever. I guess maybe one of the switches went bad.

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    Senior Member Nicoradv's Avatar
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    Those switches are in parallel.
    See if you can disconnect one a time.

    According the wiring diagram the wire colors are Brown and Green/Yellow that connect to the switches.

    Disconnect the wires to the rear and check light.
    Leaving those wires disconnected the front wires.
    If that light does not go out, then its a bad wiring somewhere.

    Whichever disconnect turn light off, that the bad switch.
    Lot of TW200 wiring diagrams on the internet. have a search for them and find your bike
    Dryden-Tdub likes this.
    If a bike is plated, it's suppose to be ridden, not hauled on a trailer.
    2002 DR650SE, 2001 TW200

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    Senior Member Trail Woman's Avatar
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    Jusride7 likes this.

  10. #9
    Member floridalawdog's Avatar
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    Thank you everyone

  11. #10
    Senior Member grewen's Avatar
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    let us know what the problem was
    Nicoradv and JerseyJeeper like this.
    Greg

    2019 honda cb500x
    2018 honda grom
    2018 suzuki dr200

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