OBD-II code · Powertrain (generic)
P0223 Throttle/Pedal Position Sensor/Switch "B" Circuit High Input
The B channel voltage is above the upper diagnostic threshold, typically caused by a short to supply voltage or a defective sensor.
Is it safe to drive with P0223?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyTPS B circuit shorted to supply voltage
- PossibleTPS B element failed
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–2 h
- Emissions test
- Likely to fail
- Parts involved
- Throttle Position Sensor B, Tps Wiring
Related codes
- P0220Throttle/Pedal Position Sensor/Switch "B" Circuit
- P0221Throttle/Pedal Position Sensor/Switch "B" Range/Performance
- P0222Throttle/Pedal Position Sensor/Switch "B" Circuit Low Input
- P0224Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
- P0225Throttle/Pedal Position Sensor/Switch C Circuit
- P0226Throttle/Pedal Position Sensor C Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.