Synchronizing sliding / pop-up roof, function - GF77.20-P-3002GH

MODEL 163 with CODE (414a) Electric glass sliding/pop-up roof 

Synchronization  is necessary to match the counter status of the position counter with the actual position of the sliding /pop-up roof in the evaluation electronic module for the sliding /pop-up roof (M12)  Synchronization is required when the sliding /pop-up roof (M12)  has been disconnected from the power supply or a malfunction has occurred during position measurement resulting in desynchronization  .

In the desynchronized state the evaluation electronic module in the sliding /pop-up roof (M12)  cannot recognize the position of the roof.

In this case control is possible only to a limited extent; it is only possible to open the pop-up roof for synchronization.

Synchronizing 

When the sliding /pop-up roof (M12)  is moved to the mechanical end position "pop-up roof open" in the desynchronized state, the evaluation electronic module recognizes that the motor is locked up  and then performs synchronization  ; the position counter is set to "0" and the sliding /pop-up roof can then be operated again without limitations.