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Head light issues

Discussion in 'Fisher Engineering Discussion' started by SIWEL, Oct 10, 2010.

  1. SIWEL

    SIWEL Senior Member
    Messages: 129

    I have a 1997 f250 with a 8' fisher mm 3 plug. I will list some issues I am having right now, can someone help me out?

    - My high beam light is always on.
    - I turn my high beams on and one light goes completely out.
    - If I switch the location of headlights on the isolation module, the problem side switches.

    any help would be great.

    -Ryan
     
  2. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,138

    Check your configuration plug on the #2 harness,i've seen the pins back out and loose contact sometimes.It's a small plastic plug with a short jumper wire connecting 2 of the 3 pins.
     
  3. NHresident

    NHresident Senior Member
    Messages: 285

    dont u mean the #1 veh control harness
     
  4. brad96z28

    brad96z28 PlowSite.com Addict
    Messages: 1,526

    Definitly #1 harness
     
  5. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,138

    :dizzy: My fingers get ahead of my brain sometimes! Yes,the #1 harness
     
  6. SIWEL

    SIWEL Senior Member
    Messages: 129

    now that is the plug that plugs into the number 1 on the isolation module, I am lost on harness numbers... can someone help me out haha
     
  7. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,138

    Yes,#1 harness on the Isolation Module,right were it plugs into the box,follow it back maybe 8",the harness will split and you will see the configuration plug
     
  8. samjr

    samjr Senior Member
    Messages: 480

    is this it

    i think this is a pic of what u want :mechanic:

    IMG_12555.jpg
     
  9. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,138

    Alright,once again,i'm ahead of myself,is this a 3 port or 4 port module?
     
  10. samjr

    samjr Senior Member
    Messages: 480

    sorry my bad I missed read lol

    I missed read lol sorry Arc
     
  11. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,138

    LOL!,Hey,I've already mistyped,misthought! Hopefully we can figure his lights out though
     
  12. samjr

    samjr Senior Member
    Messages: 480

    Last edited: Oct 12, 2010
  13. SIWEL

    SIWEL Senior Member
    Messages: 129

    It is a 4 port module... I will look and see if I can see the problem tomorrow, thanks everyone i will let you know my findings