What causes a SPN 3273 code?

SPN 3273 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 3273 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 3273 active.

How do I fix SPN 3273?

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 3273

SPN 3273 - Exhaust Gas Recirculation (EGR) Cooler Bypass Valve Control Circuit High

What it means

The engine control module (ECM) has detected a short to a voltage source or high current on the EGR cooler bypass solenoid control circuit.