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Thread: Brake light help please

  1. #1
    Mark Eaton's Avatar
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    Brake light help please

    My brake lights are always on and when I push the pedal they go off. Seems like it should be a simple solution, probably a problem with how I wired the switch? I tried moving the leads on the switch to the position shown and I got no lights at all. I also switched their respective positions and nothing changed. Any ideas? Thanks!

    MK4 #9130 , complete kit, arrived 8/10/2017, Street Legal 2/14/2020.
    DART SHP 347, EFI, TKO600, IRS
    http://thefactoryfiveforum.com/showt...n-Build-Thread

  2. #2
    Papa's Avatar
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    Mark,

    I had a similar issue when I first wired my car; brake lights working opposite the way they should. Moving the wires to the set of connectors shown with your yellow arrow corrected that. If you've done that and the brake lights don't come on at all, be sure the switch is adjusted so that as the pedal is released the button fully extends. The other possibility is that the switch is bad.

    Dave
    My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
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    Delivered: 6/17/2017
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  4. #3
    Senior Member rich grsc's Avatar
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    Thats not a brake light switch, that's the clutch safety switch. Unless they changed switch design

  5. #4
    Papa's Avatar
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    Quote Originally Posted by rich grsc View Post
    Thats not a brake light switch, that's the clutch safety switch. Unless they changed switch design
    Rich,

    My kit shipped with two of the switches shown. One set of leads is used to operate as the clutch switch, and the other set as the brake light switch.

    My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
    (Most viewed Roadster build thread on this forum!)

    Delivered: 6/17/2017
    First Start: 12/30/2017
    Completed: 12/7/2019
    Legal: 1/30/2020

    Member of the Mile-Hi Cobra Club
    Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
    Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread

  6. #5

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    Mark
    Like Papa said; change to the other set of connectors. I had the same issue. The assembly manual is wrong.
    build thread: http://thefactoryfiveforum.com/showt...-USRRC-vspeeds

    Build School: July 14-16, 2017
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    First Start: December 22, 2018
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    Mk4 - 289 USRRC Roadster kit, Roush 427SR with Schneider Racing custom camshaft, Fitech EFI, TKO600 (.64-5th gear), 15" wheels, stock brake calipers, under car exhaust with Spintech 7000 muffler, no roll bar, Russ Thompson turn signal, removable steering wheel, and many other small upgrades and modifications

  7. #6
    Papa's Avatar
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    Quote Originally Posted by Vspeeds View Post
    Mark
    Like Papa said; change to the other set of connectors. I had the same issue. The assembly manual is wrong.
    Good point! I originally wired per the picture in my previous post, but that was not correct. After switching to the other set of connectors, the circuit worked as intended. I don't have my car here and couldn't recall which connectors worked, but it was opposite the on when the pedal was not pressed condition.

    Dave
    My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
    (Most viewed Roadster build thread on this forum!)

    Delivered: 6/17/2017
    First Start: 12/30/2017
    Completed: 12/7/2019
    Legal: 1/30/2020

    Member of the Mile-Hi Cobra Club
    Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
    Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread

  8. #7
    Mark Eaton's Avatar
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    thanks guys, switching to the other set of connectors worked!
    MK4 #9130 , complete kit, arrived 8/10/2017, Street Legal 2/14/2020.
    DART SHP 347, EFI, TKO600, IRS
    http://thefactoryfiveforum.com/showt...n-Build-Thread

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