Power Window Switches In Center Console, Function

Location Of Power Window Switches:

Power window switch functions
Each of the five mechanical positions for the left rear power window switch (N72s3) and right rear power window switch (N72s4) are read in by the lower control panel control module (N72).

The positions of the left front power window switch (front center console) (S21/1) and right front power window switch (front center console) (S21/2) are read in by the rollbar/soft top operation control module (N52).

The switches are voltage-coded - the electrical resistance of the switch assumes different values depending on the position of the switch contact.

Second catch up --> one-touch up (not activated)
First catch up --> manual up
Middle position --> neutral
First catch down --> manual down
Second catch down --> one-touch down

The function prerequisites are:

- Voltage not too low or too high and
- circuit 15 ON or circuit 15R ON

As long as the above function prerequisites are fulfilled the lower control panel control module (N72) sends a CAN message with the switch positions of switches N72s3 and N72s4 to N52. When the switch is pressed continuously it is only possible for the CAN message to be transmitted for a maximum of 25 s. N52 also sends a CAN message with the switch positions of switches S21/1 and S21/2 to the affected door control modules.


NOTE: Control of the rear power windows is accomplished directly by the rollbar/soft top operation control module (N52).