What causes a SPN 5628 code?

SPN 5628 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 5628 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 5628 active.

How do I fix SPN 5628?

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

J1939 SPN

SPN 5628

Cummins fault code 5628

What it means

EGR Valve Actuator Installation Position - Mechanical System Not Responding or Out of Adjustment.

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

Log in Sign up free