What causes a SPN 520296 code?

SPN 520296 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 SPN 520296 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 520296 active.

How do I fix SPN 520296?

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

J1939 SPN

SPN 520296

EGR Valve Actuator, Error

What it means

EGR Valve Actuator Position Error or Internal Failure. The MCM detects that the EGR valve is not reaching the commanded position or there is an internal circuit fault within the actuator.