P0120
Throttle/Pedal Position Sensor/Switch A Circuit
Generic code
Fuel and Air Metering
High severity
Moderate repair
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What P0120 means
- The fault code P0120 indicates an issue with the circuit that controls the throttle or pedal position sensor/switch 'A'. This malfunction may cause poor engine performance or stalling.
Possible symptoms
- Reduced engine power or acceleration
- Illuminated check engine light
- Stalling or difficulty starting the engine
- Poor engine performance or rough idling
Possible causes
- A faulty throttle/pedal position sensor or switch 'A'
- Wiring or connections in the circuit may be damaged or faulty
- Loose or corroded electrical connections
- Failed engine control module (ECM)
Related parts
- Throttle Position Sensor: Throttle position sensor generally denotes the position of the accelerator pedal. Problems lead to poor acceleration
Possible solutions
- Replace the throttle/pedal position sensor or switch 'A'
- Check and repair any damaged wiring or connections
- Clean any loose or corroded electrical connections
- Replace the engine control module (ECM) if necessary
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P0120 on OBD DashX
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