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help with scematic

Discussion in 'Fisher Engineering Discussion' started by jtdeveau, Jan 3, 2009.

  1. jtdeveau

    jtdeveau Junior Member
    from Canada
    Messages: 3

    Does anyone have the schematics of the 26400 iso module?
     
  2. usedcarsinri

    usedcarsinri Junior Member
    Messages: 13

  3. jtdeveau

    jtdeveau Junior Member
    from Canada
    Messages: 3

    it doesn't show the circuit board of the module, and that is what i would like. My plow lights only work on one side and i would like to be able to open the module and fix it but i would need the schematics of the module only. Does anyone know where i can get some information?
     
    Last edited: Jan 3, 2009
  4. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    The internal schematics are not available. Even the dealers dont have them because the iso is considered a Non-servicable part. And you will likely do more damage trying to open it up.

    Is this a new install or existing?
     
  5. jtdeveau

    jtdeveau Junior Member
    from Canada
    Messages: 3

    i know the dealers have them i've talk to them but they want a good price for it and everything they make they have a schematic. I have already opened it and did not damage it more, i know what i'm doing.
     
  6. elite1msmith

    elite1msmith 2000 Club Member
    from chicago
    Messages: 2,762

    ok i have come across this problem many times


    If you unplug your plow , do your lights on your truck work properly?

    did u test for a feed from the truck side harness, to the iso mod?

    did u test for a return from the iso to the truck lights(if they dontwork)

    did u test for a return from the iso to the plow.... tested at the iso, not at the plug

    then test the wire for a break in it

    each light is run independently. so if your not getting a feed from the driverside... the passenger side on the plow may light up , but not the drivers...

    i know... they were better jsut using the relays
     
  7. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    I
    Dealer was blowing smoke up your backside! There is no schematic of the ISPs available to or for the dealers. I tried several times while at tech school only to be told by westerns techs (in private) that we will never see schematics for the ISO.

    o
     
  8. Plowfast9957

    Plowfast9957 Senior Member
    Messages: 280

    I dont get to spend much time on plowsite but I dont think I would mess with Crash on electrical stuff...