What causes a SPN 524284 code?

SPN 524284 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 524284 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 524284 active.

How do I fix SPN 524284?

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 524284

PMC Level 2 fault

What it means

PMC (Progressive Motor Control) Level 2 fault indicates a diagnostic check failed within the MCM software regarding engine torque monitoring and control safety.