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Fisher EZ-V Wiring Issues

Discussion in 'Truck & Equipment Repair' started by BigCountryBCE, Dec 11, 2013.

  1. BigCountryBCE

    BigCountryBCE Junior Member
    Messages: 21

    I have a Fisher MM2 EZ-V. I just changed the plow lights to intensifires. On the old lights and the new ones I didn't have low beams on driver side. I tried changing the A/B B/C ports on the isolation module. (3 port) I reversed the wire harness on the low beam driver side and now all lights work correctly on high beam but on low beam all plow and front truck lights flash. The C port on the isolation module keeps clicking. Port C clicks with the wires from port c and port b. I am thinking the module is bad? The Truck is a 2012 GMC Sierra.
    Thanks in advance for any advice
  2. LON

    LON Senior Member
    Messages: 749

    plug in at back of headlamp is reversed.
  3. BigCountryBCE

    BigCountryBCE Junior Member
    Messages: 21

    I will try reversing the harness tomorrow, thanks