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Which Isolation module??

Discussion in 'Fisher Engineering Discussion' started by Riccas, Sep 16, 2008.

  1. Riccas

    Riccas Member
    Messages: 60

    I have been on ebay and saw some listings...

    is a 3 Isolation module for non-DRL trucks and a 4 isolation module for DRL trucks?

    I am in need of a truck side setup for MM1 i believe its 2 wire... might be 3 wire connection. I am going to check today. Could a 2 wire plow work with a 3 wire setup or no?
  2. basher

    basher PlowSite Fanatic
    from 19707
    Messages: 8,993

  3. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    The 4 port was the first generation Iso's. Then DD switched to the current 3 port.

    Can't run a 2 plug plow with a 3 plug truck, or vise versa....gotta change one or the other.