2003 kenworth no turn signal

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Adamali21, Sep 13, 2021.

  1. Adamali21

    Adamali21 Light Load Member

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    Jul 24, 2018
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    I changed out the flasher and turn signal and it still doesn’t work but whenever I hit a pothole it starts working again, then stops working.
     
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  3. AModelCat

    AModelCat Road Train Member

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    Canuckistan
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    Sounds like you've got a loose connection somewhere. Those fuse panels behind the clutch pedal are known to corrode over time if the windshield leaks.
     
    Adamali21 Thanks this.
  4. Adamali21

    Adamali21 Light Load Member

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    Jul 24, 2018
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    Yup I need a diagram and start tracing the wires, I have to figure out the concept of the turn signal switch and how it functions. A pain in the whole.
     
  5. Lester Hon

    Lester Hon Bobtail Member

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    Dec 30, 2017
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  6. Lester Hon

    Lester Hon Bobtail Member

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    Dec 30, 2017
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    Sounds like the flasher.
     
  7. noriega trucking sd

    noriega trucking sd Bobtail Member

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    Jan 12, 2022
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    hi sorry im new so i cant post anything i was wondering if you guys could help i have a 2012 kenworth t600 and all the lights going to the trailer work but when you turn on the righht signal it doesnt work on the trailer side the truck does if anyone can help thank you
     
  8. BoxCarKidd

    BoxCarKidd Road Train Member

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    Unplug the light cord from the trailer and use a test light. Then do the same where the cord plugs to the truck. Then check the turn signal switch at the harness connector.
     
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