What are the symptoms of a faulty electronic throttle?

[OZoe]

There are three main symptoms of a faulty electronic throttle: 1. If the electronic throttle pedal is damaged, the dashboard warning light will illuminate: The car's throttle pedal may become stiff, produce unusual noises when pressed, and may not return to its original position after being depressed; 2. A damaged electronic throttle pedal can cause the throttle pedal sensor to fail: The ECU will be unable to detect the throttle position, leading to unstable idling, throttle sticking, unresponsive acceleration, and making the car unusable; 3. If the throttle pedal data does not match the reference voltage, being either too high or too low, it indicates a possible fault in the electronic throttle pedal: The electronic throttle pedal contains two ICs, serving as the primary/secondary pedal sensors. When the pedal is not pressed, the primary IC reference voltage should be around 800mv, and when fully pressed, around 4900mv.