What causes a P2424 code?

P2424 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 P2424 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P2424 active.

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

OBD-II

P2424

Particulate Matter Sensor Regeneration Time Too Long

What it means

The P2424 code indicates that the engine control module (ECM) has detected the Particulate Matter (PM) sensor's internal heating element is taking longer than the calibrated time to complete its self-cleaning (regeneration) cycle.