Wiper, function - GF82.30-P-3004S

Models 215, 220 

Slow wiping (stage 1) function sequence:

• The slow windshield wiping function is switched on by turning the combination switch (S4) to position 2
• The position of the combination switch (S4) is read in by the steering column module (N80) and sent to the interior compartment CAN as a message
• The left front SAM control module (N10/6) receives this message and controls the wiper On and Off relay (K40/6kH)
• Circuit 15R is switched via the wiper stage 1 and 2 relay (K40/6kG) to "circuit 53" (slow wiping) by the wiper motor (M6/1). (The wiper stage 1 and 2 relay (K40/6kG) is then not actuated.)
• The wiper motor operates at slow speed

Fast wiping (stage 2) function sequence:

• The fast windshield wiping function is switched on by turning the combination switch (S4) to position 3
• The position of the combination switch (S4) is read in by the steering column module (N80) and sent to the interior compartment CAN as a message
• The left front SAM control module (N10/6) receives this message and actuates the wiper On and Off relay (K40/6kH) and the wiper stage 1 and 2 relay (K40/6kG)
• Circuit 15R is switched via the wiper stage 1 and 2 relay (K40/6kG) to "circuit 53b" (fast wiping) by the wiper motor (M6/1). (The wiper stage 1 and 2 relay (K40/6kG) is then actuated.)
• The wiper motor runs at high speed

Switching off wiping function:

• If the combination switch (S4) has been turned to position 0, the above-mentioned message is no longer on the interior compartment CAN
• If the wiper motor now reaches the park position, the left front SAM control module (N10/6) ensures that the wiper stops (EIf switch-off was accomplished from stage 2, the wiper motor is switched back to the slow stage until it reaches the park position)
• The wiper motor stops in the park position

The wiper motor (M6/1) can be switched back to intermittent wiping by the automatic speed reduction.

As of 1.9.02 the functions anti-lock protection, lock detection, stopping and final wiping are monitored independently by the reversing wiper system (UWA).