What causes a SPN 578 code?

SPN 578 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 578 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 578 active.

How do I fix SPN 578?

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 578

J1939 SPN 578 — Engine Management parameter

What it means

SPN 578 indicates an Engine Management Parameter Error. It suggests that the ECM has detected a configuration setting or a set of control parameters that are missing, invalid, or out of range.