P0224 — Throttle/Pedal Position Sensor/Switch B Circuit High Input
Drive with caution — fix soon.
What P0224 means
This code means the second throttle or pedal position sensor (sensor B) is sending a voltage signal that's too high for the conditions. It's commonly caused by a faulty sensor, a short in the wiring, or a bad connector that's pushing the signal voltage up. Fixing it usually means testing and replacing the sensor or repairing the wiring, and it's normally a straightforward repair.
Common symptoms
- Check engine light is on
- Engine enters reduced-power or limp mode
- Poor or delayed throttle response
- Rough idle or stalling
- Surging or uneven acceleration
Common causes
- Faulty throttle/pedal position sensor
- Short to voltage in the signal wiring
- Corroded or damaged sensor connector
- Wiring chafe or open circuit
- Faulty throttle control module
Typical repair cost
$120 – $400
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0224 code?
Short trips are usually fine, but the car may go into a reduced-power mode. Because throttle response can be affected, it's best to get it checked promptly instead of driving on it long-term.
How much does it cost to fix a P0224 code?
Repairs typically range from $120 to $400. Replacing the throttle position sensor is the most common fix, while wiring or connector repairs can vary the price.
Is a P0224 code serious?
It's moderately serious. The car may still drive, but unreliable throttle behavior is a safety concern, so don't leave it unaddressed.
What does 'high input' mean in this code?
It means the sensor's signal voltage is higher than the computer expects. This usually points to a short to power, a bad sensor, or a connector problem rather than a mechanical issue.