Wiper motor, function - GF82.30-P-4104-01S

Function 

The wiper motor (M6/1) is a DC motor with three brushes. Depending on which pair of brushes is energized, the wiper motor operates at different speeds.

Cam switch 

The cam switch is closed when the wiper is in the park position. With each wiping cycle the cam switch opens and closes when the non-actuated state is reached. This generates the signal c. 31b.

The circuit 31b signal is used to detect whether the wiper motor (M6/1)

• is operating correctly,
• locked up,
• or in the park position.