What causes a SPN 2588 code?

SPN 2588 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 2588 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 2588 active.

How do I fix SPN 2588?

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 2588

J1939 SPN 2588 — Aftertreatment/Emissions parameter

What it means

Relates to the Aftertreatment Regeneration High Exhaust System Temperature (HEST) Lamp circuit.

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

Log in Sign up free