P0223 — Throttle/Pedal Position Sensor "B" Circuit High Input
Drive with caution — fix soon.
What P0223 means
P0223 means the 'B' throttle or pedal position sensor is reading a higher-than-expected voltage. Modern throttle systems use two sensors that must agree, so a high reading on one can trip this code. Causes typically include a faulty sensor, wiring shorts, or connector problems.
Common symptoms
- Check engine light is on
- Reduced engine power or limp mode
- Hesitation or surging during acceleration
- Rough or fluctuating idle
- Poor throttle response
Common causes
- Faulty throttle/pedal position sensor B
- Short to voltage in the sensor wiring
- Corroded or damaged connector
- Dirty or worn throttle body
- Reference voltage or ground circuit fault
Typical repair cost
$100 – $500
Varies by vehicle and root cause.
Frequently asked questions
Can I drive with a P0223 code?
Short distances may be okay, but the car can enter limp mode and respond unpredictably. If it feels unsafe, hold off until it's repaired.
How much does it cost to fix P0223?
Generally $100 to $500, depending on whether it's a sensor, wiring, or a throttle body replacement.
Is P0223 serious?
It's moderate. The main concern is reduced power and inconsistent acceleration, so it's best not to delay the repair.
What does 'high input' mean in this code?
It means the sensor's voltage signal is higher than the computer expects, often pointing to a short or a failing sensor.