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Western star 2003 multiplex wiring problems any help?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by auto172, Aug 24, 2019.

  1. Aug 24, 2019 #1
    auto172

    auto172 Bobtail Member

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    Aug 12, 2019
    0
    I am having a nightmare starting with headlights go completely out ,, all other lights work ..can anyone help
     
    auto172, Aug 24, 2019
    auto172, Aug 24, 2019
    #1
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  3. Aug 24, 2019 #2
    auto172

    auto172 Bobtail Member

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    Aug 12, 2019
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    thats just the beginning..
     
    auto172, Aug 24, 2019
    auto172, Aug 24, 2019
    #2
  4. Aug 24, 2019 #3
    swaan

    swaan Road Train Member

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    Jul 12, 2009
    BC canada
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    I'd start by replacing the relay for the headlights. Do they come back on by themself
     
    swaan, Aug 24, 2019
    swaan, Aug 24, 2019
    #3
    PE_T Thanks this.
  5. Aug 26, 2019 #4
    dustinbrock

    dustinbrock Road Train Member

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    Apr 19, 2012
    North Battleford, SK
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    A 2003 western star wont have any funky multiplexing that I know if.... on my 2006 it's normal fuse and relay easy to fix style.
     
    dustinbrock, Aug 26, 2019
    dustinbrock, Aug 26, 2019
    #4
    PE_T and swaan Thank this.
  7. Mar 5, 2020 #5
    trojanhorse

    trojanhorse Bobtail Member

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    Apr 14, 2015
    0
    I had trouble with my 2006 headlights. I removed all the wire covers that run from headlight to head light and found a noticeable green spot on the insulation right in the middle of the rad area. I have no idea how that happens on a wire that hasn't been disturbed by a kink or a hole poke but it was. So I spliced it and all was good.
     
    trojanhorse, Mar 5, 2020
    trojanhorse, Mar 5, 2020
    #5
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