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MM2 EZ-V Lighting Issue

Discussion in 'Fisher Engineering Discussion' started by BigCountryBCE, Dec 4, 2013.

  1. BigCountryBCE

    BigCountryBCE Junior Member
    Messages: 21

    I have a 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?
  2. buddymanzpop

    buddymanzpop Senior Member
    Messages: 597

    What year and make truck?
  3. BigCountryBCE

    BigCountryBCE Junior Member
    Messages: 21

    2012 GMC Sierra