Safety function

The signal of the reset contact in the wiper modules is used as locking protection for the wiper drive. If the signal is not sent by the reset contact when the wiper motor is switched on, the wiper motor is switched off. Switching on the wiper motor again is only possible once. Thereafter, the wiper motor can only be switched on under the following conditions:

• 3 minutes have elapsed
• Terminal 30B OFF, terminal 30B ON

The wiper drive can only be switched on using the wash/wipe switch (not automatic due to danger of injury). With blocking protection detected, the wash pumps for the windscreen and the headlights can be activated another 3 times.