1999 w900 turn signal issue

Discussion in 'Kenworth Forum' started by Links56, May 15, 2016.

  1. Links56

    Links56 Bobtail Member

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    Dec 31, 2015
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    Hello, I have a 1999 w900 I've been fighting a intermittent turn signal issue. The turn signal flasher has 3 wires on it, a ground, a hot, then the wire out should be the one that flashes. I have 12 volts going in and when you actuate the signals or hazards it does click like it should but no lights flash on the truck or the dash. So that would usually tell me the flasher is bad, but when I bypass the flasher with a jumper the lights still don't come on at all. Is there a fuse or reply after the signal flasher? I guess I am questioning the actual turn signal switch it must run back through the switch to determine which lights flash since there is only one flasher. Thanks in advance.
     
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  3. W900AOwner

    W900AOwner Heavy Load Member

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    Quick question; did you recently change from incandescent lights to led by any chance?
     
  4. Superhauler

    Superhauler TEACHER OF MEN

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    keep stroking.
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    That won't matter on a 99. I had the same issue changed the turn switch on steer column and cured it.
     
    BoxCarKidd Thanks this.
  5. Links56

    Links56 Bobtail Member

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    Dec 31, 2015
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    No change to the lights. So you guys think the switch also?
     
  6. W900AOwner

    W900AOwner Heavy Load Member

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    If no change in lights, then yes...

    I'm due for one (switch) in my 2000 right now as well. Going to try and get a shorter stemmed Signal Stat switch, because I've hooked my shirt/jacket onto mine so many hundreds of times, I'm amazed I never ripped it completely off the column yet.
     
    Last edited: May 15, 2016
  7. Tim Marshall

    Tim Marshall Bobtail Member

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    Jun 29, 2019
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    Well on my t 800 I had about the same thing I have changed the switch the flasher the lights will come on but will not flash it's just about to drive to to drinking any help would be appreciated
     
  8. spsauerland

    spsauerland Road Train Member

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    West Harrison, In
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    You replace electronic flasher. What year we talking about?
     
  9. Icedragon74

    Icedragon74 Bobtail Member

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    Jun 14, 2023
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    1977 kenworth w900 I have no hazards or turn signals unless I hook my test light to the negative side of batter then touch the 2 prong 4 way led flasher then my lights work is there a way I could fix that or is there another flasher for that module of truck that I'm missing and where exactly is it located
     
  10. Icedragon74

    Icedragon74 Bobtail Member

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    Jun 14, 2023
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    And also I have no clicking sound until I ground out with my test light then everything works please tell me what I'm missing
     
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