What causes a P0224 code?

P0224 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 P0224 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0224 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

P0224

Throttle/Pedal Position Sensor 'B' Circuit Intermittent

What it means

The Engine Control Module (ECM) detects an erratic or intermittent voltage signal from the secondary channel of the accelerator pedal position sensor.