Power window synchronization, function - GF72.29-P-4003A

MODEL 202 as of 1.6.97, 208, 210.081 /281, 210 (except 210.081 /281) as of 1.3.97 

Definition 

Synchronization  means the counter status for position recognition  in the door control module (N69/1)  or (N69/2), (models 202/210 also N69/3 or N69/4),  is set to the actual position of the side window. Synchronization is necessary when the door control module has been separated from the power supply (e.g. by disconnecting the battery, removing or installing the door control module), or following a desynchronization  . When a window is not synchronized the door control module  does not know in which position the window is and in which direction it is necessary to move the power window  motor in order to close the window. For this reason synchronization is a prerequisite for proper operation of the one-touch window up/down control  for the power window.

Synchronizing 

Close window in question with power window switch  or convenience feature  until power window  motor locks up, then continue to actuate switch. The door control module  continues to actuate the motor and sets the counter for position recognition  to zero when motor lock-up  has been recognized for at least 0.3 sec. The window is then synchronized. This means that the door control module  can now switch off the power window motor before reaching the lock-up position when opening and closing the window.

The window remains synchronized as long as it is not desynchronized  .

Model 208: For synchronization it is necessary for the door in question to be closed.

Resynchronizing 

Resynchronization is accomplished when the power window switch is held down in the closed direction for longer than 0.3 seconds even though the zero position has already been reached.