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Plow wont work (Fisher 8 ft)

Discussion in 'Fisher Engineering Discussion' started by Tumas, Jan 4, 2015.

  1. Tumas

    Tumas Member
    from NFLD
    Messages: 51

    Hello and thanks for any help in advance.
    I am trying to put a Minute mount I with a 4 port isolation module on a 2003 GMC Sierra 2500HD.

    My problem is, I have no headlights, only park and turn signals.
    The plow will also not move at all. I have power on the fishstik, but when i turn it on, and press a button, I hear a click, and the power light goes off.
    I think I may have the wrong harness. I know everything on the plow works, because I tried it on a different truck. What I am looking for is part numbers for the truck side headlight harness and control harness to confirm if I have the right wiring. I cannot find it online anywhere. Ematch does not seem to go back this far. I should also add that this minute mount I has intensifier headlights. Thanks again.
     
  2. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,672

    With ematch on the last page with part numbers uncheck fleet flex and check 4 port. This should give you harness numbers.
     
  3. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    My 2006 Chevy Silverado 2500HD has the following

    4 port isolation module green label-27781
    Port 1-26345 control harness 3 pin
    Port 2-26357 light harness 11 pin
    Port 3-26351 HB3 & HB4 short harness
    Port 4-26352 HB3 & HB4 long harness
     
  4. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    Hope this helps
     
  5. Tumas

    Tumas Member
    from NFLD
    Messages: 51

    Yes thanks that helps. What is the difference between the label colours on the ISO module? Mine is a 4 port white label p/n 28400.
    Will this still work?
     
  6. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    Does it say on the white tag in the lower left corner 26134?
     
  7. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    I'm not 100% sure but I think you might have a ford/dodge hb1 & hb5 isolation module.Your headlights are hb4 which is probably why your headlights aren't working
     
  8. NHresident

    NHresident Senior Member
    Messages: 285

    u have a dodge/ford 4 port non drl module u need to get ur self a yll or grn 4 port
     
  9. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    I was going to say never heard of a white label on a GM truck.
     
  10. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    eBay has a bunch of them
     
  11. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

  12. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    Sell the white module when you get the right one
     
  13. NHresident

    NHresident Senior Member
    Messages: 285

    they did use them from 88-98 on gm's and some 99-01 models with a configuration plug
     
  14. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    Of all the GM trucks I've seen personally they have 3 port yellow label, or 4 port green label
     
  15. Going forward from here you will be seeing 3 port violet label iso mods for the GM trucks with projector headlamps.
     
  16. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    Ah good to know
     
  17. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    How come GM went from a 3 port to a 4 port, back to a 3 port?
     
  18. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    My 4th port on my isolation module is for the passenger side headlight
     
  19. NHresident

    NHresident Senior Member
    Messages: 285

    fisher never made a yll label 3 port module maybe u meant 4 port ?
     
  20. NHresident

    NHresident Senior Member
    Messages: 285

    they didn't but u can use either