What causes a SPN 517 code?

SPN 517 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 517 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 517 active.

How do I fix SPN 517?

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 517

J1939 SPN 517 — Engine Management parameter

What it means

The Engine Management Parameter code indicates that the ECM has detected an invalid or out-of-range configuration parameter received over the J1939 network, or a prerequisite configuration bit is missing.