P0120

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2017-10-10

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Description:

• 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