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287b aux hydraulic not wokring

Discussion in 'Skid Steers' started by willowcreek, Feb 12, 2020.

  1. willowcreek

    willowcreek Member

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    I know this has been posted a lot in there but haven't found anything to help me out

    have a 287b and when I went to hook up grapple it wont function

    CAT0287BKZSA02223

    I have checked the switches in the joystick and they are working but not sure where to go from there

    also the speed control wont work (rabbit turtle switch)
     
  2. willowcreek

    willowcreek Member

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    IMG_20200212_103008615.jpg IMG_20200212_103002715.jpg
    The yellow light is always on and not sure if that is causing me issues or where to go from here
    All fuses and relays are good
     
  3. willowcreek

    willowcreek Member

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    This is probably the reason for all these problems
    Ecm
    IMG_20200212_115243595.jpg
     
  4. Nige

    Nige Senior Member

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    Do you have an electrical schematic.?
     
  5. barnfab

    barnfab Active Member

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    How did you test your switch ?
     
  6. willowcreek

    willowcreek Member

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    Yes I have schematics

    I tested them by continuity
    Also saw somewhere that if I test ecm from pin 3 to pin 60 I should get under 5ohms I had 28ohms
    So I'm assuming that that means the ecm is junk
     
  7. willowcreek

    willowcreek Member

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    so I got a new aux ecm and still not working
    the yellow light is now off but no aux function
    also no speed control
     
  8. Mark250

    Mark250 Senior Member

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    Tbe ECM needs to be programmed.to suit the joystick
    Either push button or Thum roller must be done with ET
     
  9. willowcreek

    willowcreek Member

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    so it will be a trip to the dealer then??
    wll that fix the speed control as well??
     
  10. Nige

    Nige Senior Member

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    You could ask the dealer Service Dept beforehand if they can flash the Aux ECM on the bench. You wouldn't have to take the machine to them in that case.

    The rabbit/turle switch problem is not likely to be fixed via the Aux ECM. If I was you I'd start looking at the control circuit for it. I sent you a copy of the electrical schematic. Check your PM's.
     
  11. willowcreek

    willowcreek Member

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    so after a trip to the dealer with the box its working
    there wasn't any programming in the box it as a 3000 dollar brick
    thanks for the help guys
     
    mikebramel likes this.
  12. Nige

    Nige Senior Member

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    All ECM's supplied via the Parts Dept are blank. The same ECM Part Number could possibly fit 100 different models and require a different Part Number of software to be installed for each one of them.