What are the four lines of the car wiper ?

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Scientific knowledge :

 

The wiper motor can be regarded as a gear motor with positive and negative rotation. Because there is positive and negative rotation, the circuit is three-phase, and it also involves the reverse position. Therefore, a set of positive and negative lines is added to make the switch, and most of them are electromagnetic. Three-phase power supply, two-phase switch .

 

 

According to the working principle of the automobile wiper motor, the motor wiper motor lines are :

 

1 . 12V power supply is positive .

 

2.  12V power supply negative (also called grounding) .

 

3.  high-speed files .

 

4.  Low speed gear .

 

5.  intermittent file.

 

 

 

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