Why is there an electric current sound when stepping on the car accelerator?

[Angelina]

It is normal for a car to produce an electric current sound when stepping on the accelerator. If the sound is too loud, you can have it inspected at a 4S shop. Here is some relevant information about electronic throttles: 1. An electronic throttle uses wiring harnesses to replace cables or rods. The other side of the throttle is equipped with a micro generator, and an electric motor is used to control the throttle opening. Traditional internal combustion engine throttle control technology lacks precision, and the emergence of electronic throttles has solved this problem. 2. The components of an electronic throttle include a pedal displacement sensor, an electronic control unit, a data bus, a throttle actuator, a servo motor, and an accelerator pedal. The electronic throttle control system mainly has two functions: traction control system and speed control system.