What causes a P2416 code?

P2416 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 P2416 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P2416 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

P2416

O2 Sensor Signals Swapped Bank 1 Sensor 2 / Bank 1 Sensor 3

What it means

The Engine Control Module (ECM) detects that the connectors for the downstream oxygen (O2) sensors or NOx sensors have been swapped or are providing cross-correlated feedback that doesn't match exhaust flow logic.