P0120
WysokiThrottle Position Sensor (TPS) Circuit Malfunction
OBD-II (EN): Throttle/Pedal Position Sensor/Switch A Circuit
Code P0120 — Throttle Position Sensor (TPS) Circuit Malfunction. Symptoms: no response to accelerator. Possible cause: faulty TPS sensor. Professional diagnosis recommended.
Symptoms
No response to accelerator, jerking, unintended acceleration, limp mode
Possible causes
Faulty TPS sensor, worn potentiometer, corroded contacts, damaged wiring
Affected systems
Silnik spalinowyPrzepustnica
Manufacturer variants
Manufacturer variants (extensions):
Tags and synonyms
Does code P0120 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.