What causes a SPN 717 code?

SPN 717 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 717 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 717 active.

How do I fix SPN 717?

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 717

J1939 SPN 717 — Engine Management parameter

What it means

J1939 SPN 717 indicates a failure or loss of data regarding the Engine Management parameters. This is typically a communication fault indicating that the instrument cluster or body controller is not receiving essential operating data from the engine controller.