What causes a P2412 code?

P2412 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 P2412 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P2412 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

P2412

P2412 Exhaust Gas Temperature Sensor Circuit Intermittent

What it means

The Engine Control Module (ECM) has detected an irregular signal from the Exhaust Gas Temperature (EGT) sensor circuit, typically Bank 1 Sensor 4. This indicates the sensor is sending data that is out of range or inconsistent with operating conditions.