Problems with my turn signals staying on

Discussion in 'Freightliner Forum' started by Melvin1324, Feb 4, 2014.

  1. Melvin1324

    Melvin1324 Bobtail Member

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    Jan 24, 2014
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    Thank you everyone for the help and for those who may have this same issue down the road. It did turn out to be a bad ground. The electrical cord running from the truck to the trailer was bad and grounding out before it plugged into the trailer. Bought a new cord for 65.00 and it is working like a champ again.
     
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  3. GoodMark

    GoodMark Bobtail Member

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    Jun 28, 2011
    Grayson, Ga
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    Melvin when you say cord. did you mean pigtail cord? Im having the same issues.
     
  4. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
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    Jun 14, 2009
    romulus,mi
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    7 way truck to trailer electrical cord (usually green)
     
  5. Bigman58

    Bigman58 Light Load Member

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    Feb 12, 2014
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    It's the Turn Signal switch. Just replace it. Take about 5 minutes.
    I had weird stuff happening. I was splicing wires here and there and a guy on the forum suggested replacing the T/S switch. I forget how much it cost. Under $100 I think
     
    SavageChopper Thanks this.
  6. Bigman58

    Bigman58 Light Load Member

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    Feb 12, 2014
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    opps! Maybe I should work at the T/A :)
     
  7. FTL_patrick

    FTL_patrick Bobtail Member

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    Feb 19, 2013
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    Help. Need wiring diagram. With light switch off I turn on right turn signal and all lights blink. Inc. Head marker dash Everything. Can't figure it out. Need harness diagram for lights. If switch is on then all lights come on but then right turn signal just comes on it don't blink and brake lights are always on if switch is on. And to be clear I mean the bright brake lights not just my running lights
     
  8. Northeast Tom

    Northeast Tom Bobtail Member

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    Feb 28, 2015
    Maine
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    Having same problem eith my 2007 kenworth. On front right light. Just turning off snd on intermittently


    QUOTE="CondoCruiser, post: 3825904, member: 41921"]Your headlights run through your turn signal switch. There are little copper contacts in it and they can break and short across other contacts. That would be my guess.

    You can unplug the switch and ohm it out. I think the right side is the Light Green wire and the Headlight Hot is either the Red or White wire.

    The left side is the yellow wire. Your ohm check should be the same as the right side and show open.

    There's like 3 different switches. If you can get the model number off it I can get the exact wiring diagram.[/QUOTE]
     
  9. Glenn West

    Glenn West Light Load Member

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    Apr 22, 2016
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    Steering wheel come off? 5 minutes job?
     
  10. Niteshift

    Niteshift Bobtail Member

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    Aug 21, 2018
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    I have a 2017 cascadia, the original blinker bulbs stayed the amber color, now that I have replaced them after about 2 weeks the amber turns white, like a clear bulb, why is it doing this
     
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