P0224high severityPowertrain
Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
on 2003 Audi A6 3.0L V6 · AWD
What this code means
The B throttle or pedal position signal is cutting in and out intermittently. This can trigger reduced power mode when detected.
Symptoms
- Check engine light on
- Intermittent limp mode
- Erratic throttle response
Common causes
- Loose or corroded connector
- Damaged sensor wiring
- Failing throttle position sensor
- Faulty PCM
Diagnostic steps
- Scan for stored codes
- Inspect TPS connector and wiring
- Wiggle-test harness while watching signal
- Replace sensor if signal drops out
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