What causes a SPN 537 code?

SPN 537 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 537 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 537 active.

How do I fix SPN 537?

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 537

J1939 SPN 537 — Engine Management parameter

What it means

J1939 Engine Management Parameter: Indicates a communication or logic error regarding parameters shared between the Engine Control Module (ECM) and other vehicle subsystems.