P0120Severity: Medium
P0120 – Throttle/Pedal Position Sensor A Circuit
A fault in the throttle/pedal position sensor A circuit.
What it means
There's a problem in the electrical circuit of the throttle or pedal position sensor (A). The ECU can't read throttle demand correctly; power loss and limp mode can occur.
Symptoms
- Loss of power
- Erratic throttle response
- Limp mode
- Check-engine light
Common causes
- Faulty TPS/pedal sensor
- Wiring/connector issue
- Dirty throttle body
- Supply/ground fault
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Frequently asked questions
What does trouble code P0120 mean?
P0120 – Throttle/Pedal Position Sensor A Circuit. There's a problem in the electrical circuit of the throttle or pedal position sensor (A). The ECU can't read throttle demand correctly; power loss and limp mode can occur.
Can I drive with a P0120 code?
You can usually drive short distances, but it's best to have it checked before it gets worse.