Why does the wiper move by itself without turning on the switch?

[VanAlejandro]

The wiper moves by itself without turning on the switch because the control switch is broken. Solution: Send it to a repair shop for fixing. The structure of the wiper is quite simple, mainly consisting of a brush and a motor, so failures are relatively rare. Even if the wiper malfunctions and stops moving, it is mostly due to a blown fuse. Simply open the fuse box, locate the wiper's fuse, pull it out, and replace it to continue using the wiper. Introduction to wipers: The wiper is an important accessory installed on the windshield, and its function is to clear rain, snow, and dust that obstruct the view on the windshield. Therefore, it plays a crucial role in driving safety. Wipers generally come in three types: vacuum wipers, electric wipers, and wipers with electronic control units. The drawback of vacuum wipers is that the speed of the wiper blade is unstable. When the engine's vacuum level decreases (for example, when the car is climbing a hill), the wiper blade may stop, blurring the driver's vision. Vacuum wipers were phased out in 1972 and replaced by electric wipers.