What causes a SPN 4725 code?

SPN 4725 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a SPN 4725 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 4725 active.

How do I fix SPN 4725?

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

J1939 SPN

SPN 4725

Cummins fault code 4725

What it means

Particulate Matter Sensor - Data Valid But Above Normal Operating Range - Least Severe Level. This code indicates the Cummins Aftertreatment Soot Sensor has detected excessive soot or an internal electrical failure.