P0121Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance

The throttle or pedal position 'A' signal is present but its value does not match what the computer expects, for example it does not agree with airflow, a second sensor, or known idle/wide-open positions. The signal is out of range or tracks poorly. The computer cannot fully trust the throttle reading.

ყველაზე გავრცელებული მიზეზებია: Faulty or worn throttle position sensor (TPS), Dirty or carboned throttle body affecting throttle plate position, Wiring or connector resistance/intermittent contact, Mechanical throttle linkage or throttle body wear, Sensor not correctly calibrated/relearned after service.

ჩვეულებრივ უსაფრთხოა მცირე მანძილზე მგზავრობა, მაგრამ მალე გადაამოწმებინეთ.

Generally drivable for short trips but it may go into limp mode, so have it checked soon. A technician should compare the sensor signal to expected values and inspect wiring and the throttle body. Cleaning or replacing the throttle body/sensor and performing any required relearn often resolves it.