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Iso module difference

Discussion in 'Fisher Engineering Discussion' started by legendbridges, Jan 28, 2009.

  1. legendbridges

    legendbridges Junior Member
    Messages: 14

    I have a 2002 Chevy 2500HD and I'm trying to put a 3 plug MM1 on it. The Fisher website calls for a green label isolation module. On Ebay there is someone with a yellow label iso module and the wires I need to complete my plow. What is the difference in the two modules and can i use the yellow label or it just won't work? Any help would be great thanks...
  2. bad93blaster

    bad93blaster Member
    Messages: 70

    i know there is a 3 plug and 4 plug iso module
  3. legendbridges

    legendbridges Junior Member
    Messages: 14

    Both the green and yellow label are 4 port which is fine. But, from an electrical standpoint will the yellow not work, are they that vehicle specific? Thanks
  4. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Yes they are vehicle specific.