P0225
Throttle/Pedal Position Sensor/Switch C Circuit
Generic electrical fault on throttle/pedal position sensor C (third sensor in some redundant designs).
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Common causes
Ordered by how often each turns out to be the cause.
- Sensor failedCommon
Parts involved
- Throttle Position Sensor C
- Sensor Wiring
P0225 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.