No signal light on right side

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Craig_2815, Sep 12, 2020.

  1. Craig_2815

    Craig_2815 Bobtail Member

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    Sep 2, 2017
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    I've a peterbilt 379 that dont have signal light r flasher working on right side. And brake light dont work on right. Good on left and marker light and tail light work on both side
     
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  3. kemosabi49

    kemosabi49 Trucker Forum STAFF Staff Member

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    Tractor only or both tractor and trailer?
     
  4. Craig_2815

    Craig_2815 Bobtail Member

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    Sep 2, 2017
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    Tractor only i have my trailer unplug
     
  5. AModelCat

    AModelCat Road Train Member

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  6. Craig_2815

    Craig_2815 Bobtail Member

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    Sep 2, 2017
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    No i ck all of them
     
  7. 062

    062 Road Train Member

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    If it’s only the right rear that’s not working, then I would suspect that the plug or wires leading to it are the problem.
     
  8. stillwurkin

    stillwurkin Road Train Member

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    Is it bulb type? Or led plug and play unit?. Could also be the contacts in the bulb socket if lts bulb. Or did someone rewire for a different than stock set up? ( the old wire spaghetti kind)I replace my tail lights with led units that use the same plug as stock. Just mount and plug in. Or could well be something else wrong.
     
  9. 5K trucker

    5K trucker Bobtail Member

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    Sep 19, 2020
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    Hi,Craig,you have right side positive wiring touching your grounds wire,that is not letting flasher work on right,5k
     
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