2013 Freightliner Cascadia No trailer left turn signal light

Discussion in 'Freightliner Forum' started by Thunder King, Sep 4, 2018.

  1. Thunder King

    Thunder King Bobtail Member

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    Sep 4, 2018
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    Trailer all lights are working but the left turn signal won't blink, either when with 4 ways. Checked fuse and relay at SAM chassis, checked light cord. The SAM chassis module have been replace by the dealer when I bought the truck due to a trailer right turn signal light always on not blink. Anyone can help?
     
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  3. truckdriver31

    truckdriver31 Road Train Member

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    test it out on other trailer.
     
  4. Thunder King

    Thunder King Bobtail Member

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    Sep 4, 2018
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    I checked the light cord, both side, is no power to the trailer on the left turn signal. If it just the trailer, I don't need to post here.
     
  5. truckdriver31

    truckdriver31 Road Train Member

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    did u check your set up with a other trailer to rule out the trailer
     
  6. Thunder King

    Thunder King Bobtail Member

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    Sep 4, 2018
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    I did, I bought a 7 way test light for it too.
     
  7. Buckeye 60

    Buckeye 60 Road Train Member

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    could very well be in the pigtail which is an easy change and a good place to start. .... if it's your truck spend a little more on a good one instead of a junk truck stop one
     
  8. mhyn

    mhyn Road Train Member

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    small Chinese relay in sam chassis..
     
  9. Thunder King

    Thunder King Bobtail Member

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    Sep 4, 2018
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    I tested it before the pigtail, it is not that.
     
  10. Thunder King

    Thunder King Bobtail Member

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    Sep 4, 2018
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    I swapped the right turn signal relay, is not the relay.
     
  11. mhyn

    mhyn Road Train Member

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    you must have fault code on dash. what is it ?
     
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