Throttle Position Sensor Circuit Malfunction
Verified1 source
1 source
- Official data (NHTSA)official_feed
What P0120 means
Caution — monitor closely
The throttle position sensor/switch circuit signal is out of range.
Driveability assessment not yet available. Get a personalized AI Second Opinion for your exact car.
General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- Throttle Position Sensor Circuit Malfunction
What to check first
- Scan-tool live throttle position check
- Inspect throttle body wiring
Cost data coming soonUpload your estimate to check if the price is fair