What causes a P041A2A code?

P041A2A 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 P041A2A code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P041A2A active.

How do I fix P041A2A?

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

Log in Sign up

OBD-II

P041A2A

Temperature sensor circuit "B" of the exhaust gas recirculation system

What it means

Stuck signal in the range

Sign in to view symptoms, probable causes, diagnostic steps, severity, and related codes

Log in Sign up free