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Thread: CM2350 Bench Connection

  1. #1
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    Default CM2350 Bench Connection

    Connecting with Cummins Software.

    J1939+ 21
    J1931- 45
    GND 49 & 50
    +12V 25 & 26
    IGN 5 (switched)

    Connecting With V2

    GND 49 & 50
    +12V 25 & 26
    IGN 5 (switched)

    Please Fill in the blank for CAN H&L and additional information if you have.

  2. #2
    Lifetime Member GMPX's Avatar
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    CAN + 22
    CAN - 46

    And like the J1939 port the 500K CAN bus requires a 120 Ohm load if you have the ECM on the bench.
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
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    Default


  4. #4
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    any tips on unlocking the ecm via bench harness. Have no issue connecting with v2. when I connect with a bd to unlock ecm I get an error. ((connecting unlock cable to j1939(yes can and j1939 have 120 Ohm resis.))

  5. #5
    Lifetime Member DURAtotheMAX's Avatar
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    Which connector is this on? J1 blue? or J2 green?

    Im guessing green, because pins 21/45 on the green connector had 120 ohms resistance across them, which would be terminated CAN ports.
    2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison
    12.9s @ 108 mph

    many thanks to Ross and Paul

  6. #6
    Lifetime Member GMPX's Avatar
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    Green (C2) is the connector that has all the necessary bench connections, C1 has the J1939 connections for the BD unlocker.
    I no longer monitor the forum, please either post your question or create a support ticket.

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