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Taillight wiring

Discussion in 'Volvo Forum' started by Helowrenchturn2, Feb 22, 2014.

  1. Feb 22, 2014 #1
    Helowrenchturn2

    Helowrenchturn2 Medium Load Member

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    Apr 23, 2013
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    Does anyone know which wire coming through the firewall Is for the tractor tail lights?? I don't really feel like inspecting the entire harness so I'll just run a new wire
     
    Helowrenchturn2, Feb 22, 2014
    Helowrenchturn2, Feb 22, 2014
    #1
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  3. Feb 22, 2014 #2
    baha

    baha Road Train Member

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    Wire at pigtail at back of cab should be hot.
     
    baha, Feb 22, 2014
    baha, Feb 22, 2014
    #2
  4. Feb 22, 2014 #3
    Helowrenchturn2

    Helowrenchturn2 Medium Load Member

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    Ok. Thx. I didn't know there was one there
     
    Helowrenchturn2, Feb 22, 2014
    Helowrenchturn2, Feb 22, 2014
    #3
  5. Mar 2, 2014 #4
    MICH 6.0

    MICH 6.0 Bobtail Member

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    Mar 1, 2014
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    Check the wiring harness on the back frame rail right under the angled metal piece and just ahead of the brake lights , mine has chaffed and had to splice a section in. I think the wiring harness is about $100 or less.
     
    MICH 6.0, Mar 2, 2014
    MICH 6.0, Mar 2, 2014
    #4
  7. Mar 5, 2014 #5
    brianw123

    brianw123 Bobtail Member

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    Oct 29, 2013
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    Most of the trailer wiring issues we have had has either been in the pigtail from the tractor to the trailer or underneath the cab, there is a spot not that far from the back of the cab where there are several harness connections, the wires seem to chafe right around those connections. I'll try to get a picture later.
     
    brianw123, Mar 5, 2014
    brianw123, Mar 5, 2014
    #5
  8. Mar 5, 2014 #6
    Helowrenchturn2

    Helowrenchturn2 Medium Load Member

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    Apr 23, 2013
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    Actually figured it out a cpl days ago. Turned out to be a bad butt connector at the rear
     
    Helowrenchturn2, Mar 5, 2014
    Helowrenchturn2, Mar 5, 2014
    #6
  9. Mar 5, 2014 #7
    d281833

    d281833 Heavy Load Member

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    May 15, 2012
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    No pun intended.
     
    d281833, Mar 5, 2014
    d281833, Mar 5, 2014
    #7
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