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Help break lights on trailer dont work red wire has power

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Adamprov3nch3r, Jan 18, 2021.

  1. Jan 18, 2021 #1
    Adamprov3nch3r

    Adamprov3nch3r Light Load Member

    62
    14
    Dec 26, 2020
    0
    All my lights work on tractor and all myights work on trailer except break lights and when i hit the beaks i have power to red wire what do i check next how do i trouble shoot plz help im driving around like this right now!!!!
     
    Adamprov3nch3r, Jan 18, 2021
    Adamprov3nch3r, Jan 18, 2021
    #1
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  3. Jan 18, 2021 #2
    D.Tibbitt

    D.Tibbitt Road Train Member

    19,660
    130,560
    Apr 26, 2013
    Gettin' down westbound
    0
    Put a new bulb in.
     
    D.Tibbitt, Jan 18, 2021
    D.Tibbitt, Jan 18, 2021
    #2
    Caterpillar Cowboy Thanks this.
  4. Jan 18, 2021 #3
    kemosabi49

    kemosabi49 Trucker Forum STAFF Staff Member

    10,007
    41,472
    Jan 13, 2013
    SW Arkansas
    0
    Have you checked for power at the plug that goes into your brake light at the rear of your trailer?
     
    kemosabi49, Jan 18, 2021
    kemosabi49, Jan 18, 2021
    #3
    Caterpillar Cowboy Thanks this.
  5. Jan 23, 2021 #4
    xsetra

    xsetra Road Train Member

    4,925
    6,583
    Aug 21, 2011
    0
    If you have power to the light, either your light is broke or your light needs a proper ground connection.
     
    xsetra, Jan 23, 2021
    xsetra, Jan 23, 2021
    #4
  7. Jan 23, 2021 #5
    clausland

    clausland Road Train Member

    1,933
    11,066
    Dec 5, 2014
    North Woods
    0
    Best way I've found is to start at the bulb and trace it back to the power source. Many times it turns out to be a bad ground connection...
     
    clausland, Jan 23, 2021
    clausland, Jan 23, 2021
    #5
  8. Jan 23, 2021 #6
    Adamprov3nch3r

    Adamprov3nch3r Light Load Member

    62
    14
    Dec 26, 2020
    0
    Theres a stupid plug right behind the liecence plate that was bearly plugged in
     
    Adamprov3nch3r, Jan 23, 2021
    Adamprov3nch3r, Jan 23, 2021
    #6
    Badmon Thanks this.
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