Really Jammed up Bad! 25K paperweight Cummins ISX Replacement

Discussion in 'Trucks [ Eighteen Wheelers ]' started by newskate, May 27, 2024.

  1. Deezl Smoke

    Deezl Smoke Medium Load Member

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    Feb 12, 2011
    Hillsboro Oregon
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    Do you have access to the donor ecm harness?
     
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  3. newskate

    newskate Bobtail Member

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    Jun 13, 2012
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  4. Deezl Smoke

    Deezl Smoke Medium Load Member

    386
    228
    Feb 12, 2011
    Hillsboro Oregon
    0
    At the ecm, peel back the protective loom cover and take a few pictures of the wire layout.
    Do the same at the receiver truck's loom.

    Also "supermiller" . com has lots of wiring diagrams. Check them out too.

    If when you turn the key on, the system goes through self diagnostics properly, but the dash just isn't lighting up, it's likely a simple pin swap. Truck options difference may dictate this inconsistency.
     
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