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D side hedlight out... iso module?

Discussion in 'Fisher Engineering Discussion' started by gtmustang00, Jul 14, 2013.

  1. gtmustang00

    gtmustang00 Senior Member
    from Berlin
    Messages: 747

    2006 f350. I noticed the other day i have a low beam headlight out on the plow on the drivers side. Other side and both high beams work fine. I hooked up to my friends plow and same thing. He hooked up to it and the lights work fine. I checked the 2 big fuses and 2 mini fuses and they are good. I have a 4 port module and i am wired for straight blade and multiplex wiring. Connectors are in great shape. No frayed wires and no "green" corrosion. Is there a way to test the isomodule?
     
    Last edited: Jul 14, 2013
  2. 1olddogtwo

    1olddogtwo PlowSite Fanatic
    Messages: 11,535

    Most good dealers can run a diagnostic test If they have the eqm.
     
  3. gtmustang00

    gtmustang00 Senior Member
    from Berlin
    Messages: 747

    I swapped iso modules and same problem. Hmm...
     
  4. unhcp

    unhcp PlowSite.com Addict
    Messages: 1,244

    sounds like the configuration plug is not installed correctly.
     
  5. gtmustang00

    gtmustang00 Senior Member
    from Berlin
    Messages: 747

    Which plug? I don't remember ever having a problem with the straight blade. Maybe i did something wrong when i did the multiplex wiring. Everything else works. Turn signals, high beams, and low beam passenger side. The v plow operates as it should.
     
  6. unhcp

    unhcp PlowSite.com Addict
    Messages: 1,244

  7. gtmustang00

    gtmustang00 Senior Member
    from Berlin
    Messages: 747

    Yea there is none plugged in. No one told me i'd need it. Donovans didn't mention it. Do i switch it from the other spot (on the other harness), or do i have to get a new one?
     
  8. unhcp

    unhcp PlowSite.com Addict
    Messages: 1,244

    well you should have 1 in each harness
     
  9. gtmustang00

    gtmustang00 Senior Member
    from Berlin
    Messages: 747

    I put the plug in the other harness and i have both low beams now.