P0222 Code: Throttle/Pedal Position Sensor/Switch B Circuit Low Input
🟠 Moderate severity · drivable
Drivable, but throttle response may be poor or erratic, so fix it soon.
What P0222 means
The secondary throttle or accelerator pedal position sensor (circuit B) is reporting voltage that's too low. Many vehicles use two position sensors for safety, and circuit B is the redundant one.
Symptoms
- Check engine light is on
- Reduced or erratic throttle response
- Possible limp mode
- Rough idle
Common causes
- most common: Faulty throttle or pedal position sensor
- common: Shorted or damaged sensor wiring
- less common: Corroded sensor connector
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Replace the throttle or pedal position sensor | Yes | $50–200 |
| Repair shorted sensor wiring | Mechanic | $50–150 |
Frequently asked questions
Can I drive with a P0222 code?
Yes, but throttle response may be poor or erratic. Fix it soon for safe driving.
What is the most common cause of P0222?
A faulty throttle or accelerator pedal position sensor.
How much does it cost to fix a P0222?
Typically $50–$200 for a new position sensor.
Related codes
P0221
P0221 Code: Throttle Position Sensor B Range/Performance
P0223P0223 Code: Throttle/Pedal Position Sensor/Switch B Circuit High Input
P0122P0122 Code: Throttle Position Sensor/Switch Circuit Low Input
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.