P0122Severity: Medium
P0122 – Throttle Position Sensor (TPS) Low Input
The throttle/pedal position sensor reports a low signal.
What it means
The TPS voltage is lower than expected. The ECU can't read throttle position correctly; power loss and limp mode can occur.
Symptoms
- Loss of power
- Erratic throttle response
- Limp mode
- Check-engine light
Common causes
- Faulty TPS sensor
- Short/open wiring
- Connector issue
- Dirty throttle body
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Frequently asked questions
What does trouble code P0122 mean?
P0122 – Throttle Position Sensor (TPS) Low Input. The TPS voltage is lower than expected. The ECU can't read throttle position correctly; power loss and limp mode can occur.
Can I drive with a P0122 code?
You can usually drive short distances, but it's best to have it checked before it gets worse.