What causes a P2464 code?

P2464 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 P2464 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P2464 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

P2464

DPF Restriction - Excessive Soot Accumulation (Bank 2)

What it means

The Engine Control Module has detected that the Diesel Particulate Filter (DPF) for Bank 2 is heavily restricted by soot, exceeding its maximum storage capacity.