P0227 Code: Throttle/Pedal Position Sensor C Circuit Low Input
🟠 Moderate severity · drivable
Drivable, but throttle response may be limited or erratic, so fix it soon.
What P0227 means
The third throttle or accelerator pedal position sensor (circuit C) is sending voltage that's too low. The computer reads this as the pedal being in an unexpected position, which can reduce throttle response or trigger limp mode.
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: Wiring shorted to ground in the sensor circuit
- less common: Poor ground or corroded connector
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Replace the throttle or pedal position sensor | Yes | $50–200 |
| Repair wiring shorted to ground | Mechanic | $50–150 |
| Clean and re-seat the sensor connector | Yes | $0–50 |
Frequently asked questions
Can I drive with a P0227 code?
Yes, but throttle response may be poor or the car may enter limp mode. Fix it soon.
What is the most common cause of P0227?
A faulty throttle or accelerator pedal position sensor sending too-low voltage.
How much does it cost to fix a P0227?
Typically $50–200 for a new sensor, or $50–150 for wiring repairs.
Related codes
P0225
P0225 Code: Throttle/Pedal Position Sensor C Circuit Malfunction
P0226P0226 Code: Throttle/Pedal Position Sensor C Circuit Range/Performance
P0228P0228 Code: Throttle/Pedal Position Sensor C Circuit High Input
Related guide: The 10 Most Common Check Engine Codes →
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.