Cobra 3rd brake light repair

Discussion in 'Electrical & Stereo' started by tizzle0469, Jun 15, 2015.

  1. tizzle0469

    tizzle0469 New Member

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    Is there any info out there on this? I can't find a replacement anywhere...wanna keep the factory wing and my 3rd brake light is shot...
     
  2. ttocs

    ttocs Legend

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    what is broken on the old one? I am about to remove my trunk lid for paint and will have to take all that out and could get a pic or two if it helps but not sure what is wrong.
     
  3. tizzle0469

    tizzle0469 New Member

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    Not sure, I got it removed, got the housing cut open and I can't get anything to light up, I put power to all the areas of the strip and got nothing...wondering if the circuit board itself is bad or something... I plan on just replacing the circuit board with individual 5mm LEDs [​IMG]
    this is it all stripped apart.
     
  4. lutter94

    lutter94 Well-Known Member

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    its like christmas lights, one dies they all die? lol. I'd guess a bad circuit. But if you are replacing with LED's it should be easy to put those in.....
     
  5. mcglsr2

    mcglsr2 Well-Known Member SN95 Supporter

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    That would be the case only if they are wired in series. Typically LEDs (I'm assuming the original is LEDs?) are wired in parallel with resistors. However, it's possible Ford used a single resistor and wired in series to try to save some money. You've confirmed that power is reaching the board? Do you have access to any of the traces on the board to confirm there is power? Try to see how it's wired (series or parallel) - a FSM may help here, not sure. Once we know how it's wired we can take it from there.
     
  6. ttocs

    ttocs Legend

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    is this the crab claw spoiler with the light in it?
     
  7. GregT94SCC

    GregT94SCC New Member

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    I noticed I had a few leds out back in the 90s and bought a replacement. Still new in package as I've never installed it. Saving it for the eventual restoration or to sell to send my kids to college in a decade or so (lol).

    I bet some led strip lighting would work fine as a repair.
     
  8. tizzle0469

    tizzle0469 New Member

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    Yes, it's one resistor inline with the power, and I do believe it's run parallel. i think the original LEDS are flux and kinda difficult to replace. I'm gonna give the 5mm LEDs a shot and see what happens..
     
  9. ttocs

    ttocs Legend

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    the 3mm are plenty bright enough if space is tight.
     
  10. Magic

    Magic Well-Known Member

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  11. tizzle0469

    tizzle0469 New Member

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    I've been reading up on that site too, it was just an old post so I was looking for more updated information. I'm currently replacing a quarter panel on the cobra so when I get back to repairing the brake light, I'll be sure to post progress.