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Home >> BMW >> 2012 >> 760Li >> Repair and Diagnosis >> Body & Frame >> Windows >> General Vehicle Electronics -- Overview >> Wiper/Washer System >> Functions >> Wiping >> Wash Functions >> Wash windscreen
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Wash windscreen

When the wiper switch on the steering column stalk is pulled, the washer fluid pump is first switched on, followed by the windscreen wiper. The washer fluid pump remains switched on for as long as the wiper switch on the steering column stalk is pulled.

The signal is routed from the steering column switch cluster via the FlexRay to the central gateway module. It is then transmitted from the central gateway module via the K-CAN2 to the junction box electronics. The junction box electronics actuate the washer fluid pump directly.

After the pump is switched off, the wipers continue to operate for several wipe cycles in order to wipe the windscreen dry.

The wipe function set before the windscreen wash cycle is continued after the windscreen has been washed.

The junction box electronics will no longer actuate the washer fluid pump if the fluid level in the washer fluid reservoir is too low. The junction box electronics receive the information necessary for this purpose from the washer fluid level sensor.