Third brake light mind blower

Discussion in 'Generation 4 - General Discusson' started by 6500rpm, Aug 15, 2019.

  1. 6500rpm

    6500rpm Quality Always Shoots Straight

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    So I take my 13 for it's first state inspection since I've owned it, and it's a perfect car right, so I just drive it to the shop and have the inspection done without looking at it. FAILED-third brake light inoperative. I take it home and pop it off (easy task, two clips and a connector to the glass that resembles a 9v battery connector except 2 male on the glass, 2 female on the light harness). Take my jumper box to the light, and it shines nice and bright one way, not at all the other (led's so its normal and good and now I know what terminal is positive + now). Lights good, so I take my power probe to the glass terminals-ground on the terminal closest to center, and a good B+ on the other when the brake is pushed. So I snap it back on thinking it was a poor connection or something from when the windows were tinted-with it hanging down I hit the pedal and they work fine...Yea! Nope, I went to snap the cover back in place and the damn retainers won't make it to the slots because the harness is too short. I'm like WTF. Luckily I have Taurus in the fleet and it's a 30 second deal to drop the light and verify the glass terminal closest to the center is ground, and terminal to the left of it is B+ w/ brake applied just like mine. This car is 6 years old, I've had it for three and the 3rd brake light has never worked since day 1 and I never had a clue. They soldered the two wires to the led board in reverse orientation. Quick hit with the soldering iron to un-solder, reverse the wires and re-solder to the board and all is well! Just thought I'd throw this out there because it's $100 part. A new light would have fixed it too, but the issue in my case was that the board was made wrong. Can't help but wonder how many are out there, mine was a very early 13 production.
     
  2. krewat

    krewat SHO Member

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    That's ... odd. I had an early 2013, made I think in April 2012. It was REALLY early, one of the first 2013's most likely. Now you got me wondering if the Cyclops light ever worked - LMFAO.

    I wonder if it's a real Ford part, or the original went bad and someone replaced it with an El-Cheapo and it didn't work, so they figured it was wiring somewhere else, and gave up.
     
  3. 6500rpm

    6500rpm Quality Always Shoots Straight

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    OEM part and I purchased it off a 3 year lease, I'm a Fleet Tech w/ full access to all Fords records in PTS Oasis. Prior owner/lease holder took it in regularly for oil changes, recalls, and maintenance-everyone missed it. Thankfully it was an easy fix. Real world I would have verified power and ground at the glass terminals and just ordered a light.
     
  4. Lostneye

    Lostneye SHO Member

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    Third brake light is pretty common. Mine was out for I don't know how long before someone pointed it out to me.
     
  5. 13TTPI

    13TTPI New Member

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    Here’s what I did for mine, they do a triple flash then solid when the brake is applied.




    Sent from my iPhone using Tapatalk
     
  6. krewat

    krewat SHO Member

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    Sorry, pet peeve - that triple flash is annoying as F. Makes it look like a cop car out of the corner of my eye. ;)
     
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  7. Totaled TL

    Totaled TL Member

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    Is it flashing red and blue or is that an illusion?
     

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