What causes a SPN 568 code?

SPN 568 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 568 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 568 active.

How do I fix SPN 568?

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 568

J1939 SPN 568 — Engine Management parameter

What it means

J1939 SPN 568 refers to an error or invalid state in the Engine Management Parameters. This is a configuration/software fault rather than a physical sensor failure.