What causes a P2461 code?

P2461 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 P2461 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P2461 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

P2461

P2461 Diesel Particulate Filter Pressure Sensor B Circuit High

What it means

The Engine Control Module (ECM) has detected an abnormally high voltage signal from the Diesel Particulate Filter (DPF) differential pressure sensor circuit 'B', typically exceeding 4.75 volts.