Why Won't the Car Wiper Stop?

[SanCamille]

Here are the reasons why the car wiper won't stop: 1. The wiper keeps running continuously, which may be a wiring issue; 2. It could be due to a damaged combination switch; 3. There might be a break in the wiring that causes the wiper's negative terminal to connect with the car body. Additional information: 1. The power source of the wiper comes from the motor, which is the core of the entire wiper system. The quality requirements for the wiper motor are very high. It uses a DC permanent magnet motor, and the wiper motor installed on the front windshield is usually integrated with the worm gear mechanical part. 2. The worm gear mechanism serves to reduce speed and increase torque. Its output shaft drives a four-bar linkage mechanism, which converts continuous rotational motion into a left-right oscillating motion. The working principle of the wiper circuit is different from other electrical circuits. Other electrical appliances turn off the positive terminal (commonly known as the live wire).