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P0120: Throttle/Pedal Position Sensor/Switch A Circuit
Severity: Medium Drive gently and get it diagnosed soon.
What does P0120 mean?
There is a fault in the throttle position sensor (TPS) A circuit.
Generic OBD-II definition: Throttle/Pedal Position Sensor/Switch A Circuit. Confirm applicability in your vehicle service information.
Common causes
- Faulty TPS
- Wiring or connector problem
- Failing electronic throttle body
Symptoms
- Reduced power mode
- Hesitation
- Erratic idle
Can I keep driving with P0120?
Severity: Medium Drive gently and get it diagnosed soon.
If the check engine light is flashing or the car runs badly, stop driving and have it checked.
Typical fixes
- Inspect wiring
- Test TPS signal sweep
- Replace sensor or throttle body