P0228high severityPowertrain
Throttle/Pedal Position Sensor/Switch C Circuit High
on 2009 Audi A3 2.0L TDI · FWD
What this code means
The C throttle or pedal position sensor is reporting an abnormally high voltage. This usually points to an open circuit or a failed sensor.
Symptoms
- Check engine light on
- Reduced power mode
- Erratic throttle response
Common causes
- Open circuit in wiring
- Failed sensor C
- Corroded connector
- Faulty PCM
Diagnostic steps
- Retrieve trouble codes
- Measure signal voltage at sensor
- Check wiring for open circuit
- Replace sensor if faulty
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