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Which isolation module do I need?

Discussion in 'Chevy Trucks' started by CutnLawns, Jan 30, 2009.

  1. CutnLawns

    CutnLawns Junior Member
    Messages: 15

    I have a 2003 2500HD and bought a slightly used ultramount poly plow for it that may have came of a newer model truck than mine. The isolation module that came with the plow is a YELLOW label # 26401. I see all the talk about the white and green label but not the yellow. My problem is a relay in the module keeps sticking and locking up my plow and shutting everything down. Come back out in the morning and it will work fine. Should be just a problem with the module BUT since I bought this used do I have the wrong module to start? Was going to replace it but don't know if I need the white #26400 or this yellow which I can not find any info on. Thanks!