GF82.30-P-2200MCU Rear Window Wiper System, Function

GF82.30-P-2200MCU Rear Window Wiper System, Function







1 Wiper switch position
2 Actuation of windshield washer fluid pump
3 Rear-end door wiper motor actuation
4 Status of reverse gear
5 Rear-end door wiper motor position feedback
6 Ambient temperature
A1 Instrument cluster
M5/1 Windshield washer fluid pump
M6/4 Tailgate wiper motor
N10/10 SAM control unit
N15/6 Automated manual transmission control unit
S4/4 Right wiper switch
CAN Controller Area Network (data bus/CAN bus) (CAN)

Function requirements:
Circuit 15 On

Functions
^ Intermittent wipe
^ Wiping with washer fluid
^ Automatic wiping when reverse gear engaged

Intermittent wiping
Rear window intermittent wiping is activated by pushing the wiper switch forwards past the detent point. The request is read in by the SAM control unit, which actuates the wiper motor directly. Wiper arm park position feedback is provided by the signal contact that is integrated in the rear-end door wiper motor.

Wiping with washer fluid
The window washer fluid pump is actuated directly by pushing the wiper switch forwards and holding it in position. At the same time, the SAM control unit actuates the rear-end door wiper motor with a time delay of approx. 0.2 s. Three additional wiping cycles are performed after the wiper switch has been released.

Automatic wiping when reverse gear is engaged
If the windshield wiper system is active and the outside temperature is above 5 °C, the rear-end door wiper motor is actuated automatically by the SAM control unit for one wiping cycle when the reverse gear is engaged.