What causes a SPN 5782 code?

SPN 5782 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 5782 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 5782 active.

How do I fix SPN 5782?

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 5782

Cummins fault code 5782

What it means

Diagnostic Runtime Excessive - Logic Error. This is an internal proprietary Cummins diagnostic code indicating the ECM task manager has detected a process or diagnostic monitor that is taking too long to complete.