After my Great Wall M4 cleaned the electronic throttle, the fault light came on and the idle speed was unstable. The fault code is P0 122?

The Great Wall M4 cleans the electronic throttle, the fault light is on, and the idle speed is unstable. The fault code is P0 122. Analysis: P0 122: The signal circuit of electronic throttle sensor is too low. Cause of failure: open circuit of sensor signal circuit, short circuit of sensor signal circuit to ground, open circuit of sensor reference voltage, failure of sensor itself or failure of electronic module (PCM or ECM). If all the above are normal, use the car computer detector.