What causes a P0225 code?

P0225 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 P0225 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0225 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

P0225

Throttle/Pedal Position Sensor/Switch 'C' Circuit Malfunction

What it means

A failure in the third potentiometer/hall effect sensor of the accelerator pedal position (APP) assembly, indicating a voltage discrepancy or loss of signal to the ECM.