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Trailer tail light plug has 0V.

Discussion in 'Towing & Hauling' started by rockydog, Apr 10, 2021.

  1. Apr 10, 2021 at 2:18 PM
    #1
    rockydog

    #1
    rockydog [OP] New Member

    Joined:
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    Male
    First Name:
    Dennis
    Vehicle:
    2013 Tundra 5.7L
    My trailer tail lights don't work on either the seven pin or 4 pin connector. Having trouble finding a 2013 wiring diagram to trace the fault. Continuity check of the last harness shows open is earlier. Any common problems?
     
    rockydog, Apr 10, 2021
    #1
  2. Apr 10, 2021 at 2:47 PM
    #2
    ColoradoTJ

    #2
    ColoradoTJ Certified tow LEO Staff Member

    Joined:
    Feb 24, 2016
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    Colorado
    Vehicle:
    LML 3500HD
    Calibrated Power 5 Tune pack, Allison 1000 tune, PPE deep trans pan, Cold/Hot CAC pipes, Banks CAI, PCV reroute, resonator delete, S&B 62 gal fuel tank, B&W GN hitch
    ColoradoTJ, Apr 10, 2021
    #2
  3. Apr 10, 2021 at 2:47 PM
    #3
    ColoradoTJ

    #3
    ColoradoTJ Certified tow LEO Staff Member

    Joined:
    Feb 24, 2016
    Member:
    #2766
    Messages:
    35,912
    Gender:
    Male
    Colorado
    Vehicle:
    LML 3500HD
    Calibrated Power 5 Tune pack, Allison 1000 tune, PPE deep trans pan, Cold/Hot CAC pipes, Banks CAI, PCV reroute, resonator delete, S&B 62 gal fuel tank, B&W GN hitch
    welcome to the site.

    Checked all fuses in cab and the PDC under the hood right?
     
    ColoradoTJ, Apr 10, 2021
    #3
  4. Apr 10, 2021 at 3:09 PM
    #4
    Charvonia Design

    #4
    Charvonia Design Enthusiast-Owned Small Business Vendor

    Joined:
    Feb 18, 2019
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    Keith
    Huntersville, NC
    Vehicle:
    2024 Tacoma TRD OffRoad Bronze Oxide
    Check fuses first
     
    Charvonia Design, Apr 10, 2021
    #4
  5. Apr 10, 2021 at 4:24 PM
    #5
    empty_lord

    #5
    empty_lord They see me rollin'

    Joined:
    Feb 1, 2019
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    #25441
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    First Name:
    Dan
    Indiana, Chicagoland
    Vehicle:
    05 rollover special
    custom body work, Billies with taco ARB springs, Icon AAL, TRD FJ trail team wheels, 2019 Toyota 86 radio, Blacked out interior, Added factory power everything, heater mirrors, ETC
    Check the fuses. When I get home I’ll dig up the diagram for you
     
    empty_lord, Apr 10, 2021
    #5
  6. Apr 10, 2021 at 5:06 PM
    #6
    ATHiker

    #6
    ATHiker New Member

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    Tom
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    2015 DC SR5TRD 5.7L 4X4
    When I had issues with trailer lights, I had to clean the contacts on the plugs. Last year I had to replace the plug on the trailer as I was not getting a tight fit.
     
    ATHiker, Apr 10, 2021
    #6
  7. Apr 10, 2021 at 5:09 PM
    #7
    TRDFerguson

    #7
    TRDFerguson SSEM #99/RGBA #8-ish?/It’s a funny name.

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    Southeast Greater Basin, AZ
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    TRDFerguson, Apr 10, 2021
    #7
  8. Apr 10, 2021 at 5:20 PM
    #8
    empty_lord

    #8
    empty_lord They see me rollin'

    Joined:
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    Messages:
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    Gender:
    Male
    First Name:
    Dan
    Indiana, Chicagoland
    Vehicle:
    05 rollover special
    custom body work, Billies with taco ARB springs, Icon AAL, TRD FJ trail team wheels, 2019 Toyota 86 radio, Blacked out interior, Added factory power everything, heater mirrors, ETC
    empty_lord, Apr 10, 2021
    #8
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