What causes a SPN 2038 code?

SPN 2038 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 2038 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 2038 active.

How do I fix SPN 2038?

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

Log in Sign up

J1939 SPN

SPN 2038

ABS Fully Operational

What it means

Status message regarding whether the ABS unit is fully capable of all safety functions or in a degraded mode.

Sign in to view symptoms, probable causes, diagnostic steps, severity, and related codes

Log in Sign up free