Cummins
    Cummins fault code
    SPN 1333 / FMI 0

    Cummins Fault Code 715: High #5 RB Cylinder Power

    715 on Cummins engines means: High #5 RB Cylinder Power. The failure mode (FMI 0) is “data valid but above normal operating range (most severe)”.

    Lamp: Yellow

    Engine may continue to run, but must be repaired the same day.

    Code details

    Manufacturer
    Cummins
    Applies to
    Cummins QS-series electronic engines
    Fault code
    715
    J1939 SPN
    1333
    FMI
    0 — Data valid but above normal operating range (most severe)
    Engine models
    QST30

    What to do next

    • Read active and inactive codes with the OEM service tool and note the occurrence count.
    • FMI 0 tells the shop the type of failure to test for: data valid but above normal operating range (most severe).
    • 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.

    Owner-Operator

    Run your own truck?

    Log maintenance, track fault codes, and get roadside breakdown dispatch.

    $39.99/mo

    Add this truck & start trial

    Cancel anytime

    More ways Repairius keeps vehicles running

    Tools for owner-operators, shops, fleets and drivers — all in one place.

    Auto & Truck Shop OS

    From $99.99/mo
    • Work orders & job management
    • Digital vehicle inspections
    • Parts lookup & inventory
    • Estimates, invoices & payments
    Try freeLearn more

    Fleet Maintenance

    From $129/mo
    • Preventive maintenance schedules
    • Driver DVIRs & defect reports
    • Safety & compliance clearance
    • Preferred shop dispatch & approvals
    Try freeLearn more

    My Garage

    100% free
    • Digital glovebox for your vehicles
    • Maintenance history & reminders
    • Recall alerts
    • Book verified local shops
    Join freeLearn more

    Owner-Operator? Track this truck for $39.99/mo

    Start

    Fix these trucks? Get your shop listed free·Find a diesel shop

    Related fault codes

    Source: Cummins "Diagnostic Fault Codes For Cummins Engines", publication 80-1044 Rev 5/2013, page 22. Marked in the source as a CENSE fault code. See also OBD-II codes.