What causes a SPN 4697 code?

SPN 4697 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 4697 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 4697 active.

How do I fix SPN 4697?

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 4697

Cummins fault code 4697

What it means

Aftertreatment SCR Purge Air Valve Control - Current Below Normal or Open Circuit. This fault indicates that the ECM cannot detect a circuit completed through the purge valve solenoid.