Cummins
    Cummins fault code
    SPN 703 / FMI 14

    Cummins Fault Code 2195: Auxiliary Equipment Sensor Input # 3 (OEM Switch) Engine Protection - Critical

    2195 on Cummins engines means: Auxiliary Equipment Sensor Input # 3 (OEM Switch) Engine Protection - Critical. The failure mode (FMI 14) is “special instructions”.

    Lamp: Red

    Stop engine now – damage imminent.

    Code details

    Manufacturer
    Cummins
    Applies to
    Cummins QS-series electronic engines
    Fault code
    2195
    J1939 SPN
    703
    FMI
    14 — Special instructions
    J1587 PID / SID
    S051
    Engine models
    QSB, QSC, QSL9

    What to do next

    • Treat this as a stop-level fault: shut down safely and get the truck checked before running it further.
    • Read active and inactive codes with the OEM service tool and note the occurrence count.
    • FMI 14 tells the shop the type of failure to test for: special instructions.
    • Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.

    Get this code diagnosed

    Send one request and nearby diesel shops and mobile mechanics can quote the repair.

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    Related fault codes

    Source: Cummins "Diagnostic Fault Codes For Cummins Engines", publication 80-1044 Rev 5/2013, page 25. Marked in the source as a CENSE fault code. See also OBD-II codes.