P0222 Audi Throttle Pedal Position Sensor/Switch B Circuit Low

P0222 Audi Throttle Pedal Position Sensor/Switch B Circuit Low

Possible causes

– Faulty Throttle position sensor
– Throttle position sensor harness is open or shorted
– Throttle position sensor poor electrical connection

What about the obd code?

An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– No throttle response

P0222 Audi Description

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor (TPS), etc. The throttle position sensor responds to the throttle valve movement.

The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM) In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.

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