What causes a SPN 782 code?

SPN 782 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 782 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 782 active.

How do I fix SPN 782?

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 782

J1939 SPN 782 — Engine Management parameter

What it means

SPN 782 indicates an internal Engine Management Parameter error. It suggests that the ECM has detected a configuration setting or a set of parameters that are invalid or out of range for the current engine hardware.