What causes a P1497 code?

P1497 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 P1497 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P1497 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

P1497

EGR position fault in SCR heating mode

What it means

The engine control module (ECM) has detected that the Exhaust Gas Recirculation (EGR) valve is not tracking its target position correctly while the engine is trying to increase exhaust temperatures for SCR catalyst efficiency.