What causes a P2213 code?

P2213 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 P2213 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P2213 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

P2213

NOx Sensor Circuit Bank 1 Sensor 2 Malfunction

What it means

The Engine Control Module (ECM) has detected a voltage or signal frequency discrepancy from the downstream Nitrogen Oxide (NOx) sensor located after the Selective Catalytic Reduction (SCR) catalyst.