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How do you tell if it's the trailer or the pigtail?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Russian Rabbit, Dec 1, 2017.

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  1. Dec 1, 2017 #1
    Russian Rabbit

    Russian Rabbit Road Train Member

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    So last week during a pre-trip, i noticed that one side of the trailer lights were not working. i jiggled the pigtail and then they started working.

    How do you determine if it's something to do with the trailer/light receptacle or the light cord pigtail/tractor issue?

    Also, i have a test light and multimeter and know how to use them (i think?)
     
    Russian Rabbit, Dec 1, 2017
    Russian Rabbit, Dec 1, 2017
    #1
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  3. Dec 1, 2017 #2
    okiedokie

    okiedokie Road Train Member

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    Start on 1 end and work to the other. Lol
     
    okiedokie, Dec 1, 2017
    okiedokie, Dec 1, 2017
    #2
  4. Dec 1, 2017 #3
    DoubleO7

    DoubleO7 Road Train Member

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    You need a pinot diagram to start.
     
    DoubleO7, Dec 1, 2017
    DoubleO7, Dec 1, 2017
    #3
  5. Dec 1, 2017 #4
    Ezrider_48501

    Ezrider_48501 Road Train Member

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    qu26365_800.jpg test light is how you determine if its the light cord or the trailer.

    if its just one side of the trailer its probably a broken off corroded wire on the back side of the plug on the trailer
     
    Last edited: Dec 1, 2017
    Ezrider_48501, Dec 1, 2017
    Ezrider_48501, Dec 1, 2017
    #4
    Oxbow, x1Heavy and JReding Thank this.
  7. Dec 1, 2017 #5
    HotH2o

    HotH2o Road Train Member

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    [​IMG]

    Get a light tester
     
    HotH2o, Dec 1, 2017
    HotH2o, Dec 1, 2017
    #5
    Hardlyevr, Jazz1, x1Heavy and 1 other person Thank this.
  8. Dec 1, 2017 #6
    loudtom

    loudtom Road Train Member

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    Hook up to multiple trailers and see if it gives you problems while jiggling it. I've got the same problem, so I just use zip ties to keep the plug tight.
     
    loudtom, Dec 1, 2017
    loudtom, Dec 1, 2017
    #6
    bowhunter67 Thanks this.
  9. Dec 1, 2017 #7
    fortycalglock

    fortycalglock Road Train Member

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    It takes like 10 minutes to put a new plug on. They’re cheap too.
     
    fortycalglock, Dec 1, 2017
    fortycalglock, Dec 1, 2017
    #7
    spyder7723 and tinytim Thank this.
  10. Dec 1, 2017 #8
    NightWind

    NightWind Road Train Member

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    I try plugging into another trailer that I know doesn't have any issues. That's the lazy woman's way to exclude the cord.
     
    NightWind, Dec 1, 2017
    NightWind, Dec 1, 2017
    #8
  11. Dec 1, 2017 #9
    cnsper

    cnsper Road Train Member

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    Or spread the pins on the trailer.
     
    cnsper, Dec 1, 2017
    cnsper, Dec 1, 2017
    #9
    mitmaks, lester and bowhunter67 Thank this.
  12. Dec 1, 2017 #10
    cnsper

    cnsper Road Train Member

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    If everything else fails to work, get a new truck and trailer. Lo l
     
    cnsper, Dec 1, 2017
    cnsper, Dec 1, 2017
    #10
    Blackshack46, okiedokie, bigguns and 3 others Thank this.
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