What causes a SPN 3245 code?

SPN 3245 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 3245 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 3245 active.

How do I fix SPN 3245?

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 3245

Exhaust Gas Temperature (EGT) Bank 1, Sensor 3 High

What it means

This fault indicates that the Exhaust Gas Temperature Sensor at the inlet of the Diesel Particulate Filter (DPF) is reading a temperature level above the permissible engine protection limits.