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Windshield wiper, function - GF82.30-P-3004R

MODEL 230 

Fig 1: Windshield Wiper - Communication Diagram
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Operating prerequisite 

Automatic control 

Automatic wiper control (rain sensor mode) is activated by turning the combination switch (S4) to position "I".

The wiper motor (M6/1) is actuated depending on

The rain sensor (B38) or rain/light sensor (B38/2) and the overhead control panel control unit (N70) evaluate the signals that are relayed to the driver-side SAM control unit (N10/10) via the Controller Area Network bus class B (interior) (CAN-B). The driver-side SAM control unit (N10/10) then directly actuates the wiper motor (M6/1).

Possible wiper levels 

Emergency running 

If communication between the rain sensor (B38) or the rain/light sensor (B38/2) and the overhead control panel control unit (N70) fails, intermittent operation with fixed intervals (approx. 5 sec.) is activated.

With automatic speed reduction the interval is approx. 7.5 sec.

Wiping at specified speed 

Continuous wiping is activated on by turning the combination switch (S4) to position "II" or "III".

The driver-side SAM control unit (N10/10) is notified of requests from the combination switch (S4) via the steering column module (N80).

The driver-side SAM control unit (N10/10) actuates the wiper motor (M6/1) in accordance with the requests.

IMPORTANT By briefly pressing the combination switch (S4), a single wipe is performed, when pressing for longer the wiping continues in accordance with the duration that the switch is actuated.

Touch wiping takes place independently of the wiper level that has been selected.

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  Wiper motor, location / task / design /function   GF82.30-P-4104R 
  Rain sensor, location/task/design/function up to 31.5.04 GF82.30-P-4103R 
  Rain/light sensor location/task/function as of 1.6.04 GF54.21-P-4123R
  Driver-side SAM control unit with fuse and relay module, location/task/design   GF54.21-P-4109R
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  Overhead control panel control unit, location/task/design/function   GF82.20-P-4101R 
  Steering column module, location/task/design/function   GF54.21-P-4104R