What causes a SPN 3061 code?

SPN 3061 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 3061 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 3061 active.

How do I fix SPN 3061?

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 3061

SPN 3061-FMI 3/4 Aftertreatment Intake NOx Sensor Heater Fault

What it means

This fault indicates the Electronic Control Unit has detected a voltage or current issue within the heater circuit of the inlet NOx sensor.