What causes a SPN 11 code?

SPN 11 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 11 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 11 active.

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 11

Cylinder #11 Injector Driver

What it means

A generic J1939 fault for an electrical issue with the injector coil or circuit for cylinder 11.

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

Log in Sign up free