GF82.30-P-3003GH Windshield Intermittent Wipe, Function

GF82.30-P-3003GH Windshield Intermittent Wipe, Function







Function sequence
The interval wiping function is switched on to position (i) with the combination switch.

The input (pin A8) of the all-activity module (AAM, N10) is connected to c. 15R.

The AAM immediately actuates the front wiper motor relay (F1k17) for max. 2 s. In wiper stage 1 power is supplied to the wiper motor (M6/1) by the relay (pin a).

Power is supplied to the motor by the cam switch and non-actuated contact of the relay F1k17 (pin b) until the wiper arm has reached its park position. When the park position is reached the cam switch switches over.Then the two motor connectors are short-circuited and the motor is braked by the eddy-currents.

Then the actual interval wiping starts.The described procedure is repeated for each interval.

Interval actuation without code 345a (without rain sensor)
When the interval time is completed the AAM starts a new wiping procedure.The interval time is speed dependent and is adjusted between 5 s when parked and 1 s at a speed of 180 km/h by the AAM.

Interval actuation as of 1.9.00 with code 345a (with rain sensor)
When c. 1 is ON: the rain sensor (B38) defines the wiping intervals. The wiper motor relay (F1k17) is actuated by the AAM at the intervals defined by the rain sensor (cf. function sequence above).The relay switches off when c. 31b

(wiper not in park position) is recognized, however, after 1 s (lock-up) at the latest.

In the event of heavy rain the relay remains actuated, the wiper operates as in stage 1.