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Thread: 2011 grand marquis brake lights out

  1. #1

    Default 2011 grand marquis brake lights out

    My brake lights arenít working. Itís something to do with a switch connected to the pedal but Iíve found two switches. I wiggles around a few wires and I got brake lights for a morning but now theyíre not working again. I have no idea which thing connected to the brake pedal is what I should be looking at!

  2. #2
    Road Warrior Kodachrome Wolf's Avatar
    Join Date
    Nov 2014
    Evans, GA


    Sounds like the brake light switch has gotten flaky. Iíd try swapping that out.

    I donít know about the later cars, but the earlier ones just had two wires running to the switch.

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 POTM Winner
    -1989 Sable LS Wagon (88,710 Miles) - Sold
    -1997 Grand Marquis LS (210K Miles) - The Daily Workhorse & March 2015 + January 2019 POTM Winner

  3. #3
    Stow It! GM_Guy's Avatar
    Join Date
    Sep 2008
    Ontario, Canada


    5 wires on the later ones. Two internal switches.

  4. #4
    Fastest Box In South Jersey 86VickyLX's Avatar
    Join Date
    Jan 2007
    Westmont, New Jersey


    Do those go through the LCM? Pretty sure that's a common issue with the later ones too.
    "Vicky" 1986 Ford LTD Crown Victoria LX ..................................."Blue" 1992 Mercury Grand Marquis LS

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