Wiper, function - GF82.30-P-3004GH

MODEL 163 

The function wiping windshield is switched in three stages with the combination switch (S4) 

• One-touch wiping - press  switch lever upward to first catch position (t). The switch lever returns to the basic position after being released.
• Wiping stage 1  - press switch lever upward beyond first catch position (1).
• Wiping stage 2  - press switch lever upward beyond second catch point (2).

A connector of the wiper motor (M6/1)  is connected to circuit 15. The motor starts operating. When stage 2 is switched on the other motor connection is switched. The motor operates with higher speed.

When switched back to the basic setting the motor is supplied with power by c. 15 via the non-actuated contact of relay F1k17  (b) until the wiper arm has reached its park position. In this position, the cam switch brakes the motor by short-circuiting (eddy-current brake)

Fig 1: Identifying Wiper Function