What causes a SPN 7049 code?

SPN 7049 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 7049 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 7049 active.

How do I fix SPN 7049?

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 7049

Cummins fault code 7049

What it means

Particulate Matter Sensor - Data Valid but Above Normal Operating Range - Least Severe Level. This code indicates the PM sensor has detected higher than expected levels of soot in the exhaust stream.