What causes a P2230 code?

P2230 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 P2230 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P2230 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

OBD-II

P2230

Barometric Pressure Sensor Intermittent Circuit Fault

What it means

The Engine Control Module (ECM) detects an erratic or intermittent voltage signal from the barometric pressure sensor, which is critical for calculating altitude-based air density and fueling.