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2009 prostar turn signals

Discussion in 'International Forum' started by big ron, May 8, 2015.

  1. May 8, 2015 #1
    big ron

    big ron Bobtail Member

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    May 8, 2015
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    What is to be done? Turn signals/hazzards work on tractor and drivers side of trailer but the passenger side of the trailer are intermittent. Traced back to harness going into firewall. wondering if it is the harness or the signal switch on the column?
     
    big ron, May 8, 2015
    big ron, May 8, 2015
    #1
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  3. May 8, 2015 #2
    Heavyd

    Heavyd Road Train Member

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    Your turn signal is fine if it works ok on the truck. The body controller turns on the trailer turn relay in the fuse panel. Make sure the relays and breakers are good.
     
    Heavyd, May 8, 2015
    Heavyd, May 8, 2015
    #2
  4. Dec 5, 2016 #4
    Dwayne Walker

    Dwayne Walker Bobtail Member

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    Dec 5, 2016
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    Which relay would that be?
     
    Dwayne Walker, Dec 5, 2016
    Dwayne Walker, Dec 5, 2016
    #4
  5. Dec 5, 2016 #4
    Heavyd

    Heavyd Road Train Member

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    They will be labeled on the back of panel.
     
    Heavyd, Dec 5, 2016
    Heavyd, Dec 5, 2016
    #4
  7. Feb 11, 2023 #5
    Catdog1235

    Catdog1235 Bobtail Member

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    Feb 11, 2023
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    2009 pro star trailer, turning signals power is on all the time
    Relays are brand. New fuses are good.
    Any thoughts what to do?
     
    Catdog1235, Feb 11, 2023
    Catdog1235, Feb 11, 2023
    #5
  8. Feb 11, 2023 #6
    Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    Body controller could be locked up, try a cold boot. To perform this, disconnect batteries for 1 minute and reconnect. If they are still on, remove the left kick panel next to the clutch pedal to access the body controller. Disconnect blue connector. If they stop, then something is wrong with the body controller and further diag is needed. Are both left and right turn stuck on? Do they flash or on solid?
     
    Heavyd, Feb 11, 2023
    Heavyd, Feb 11, 2023
    #6
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