Sliding/pop-up roof lock-up recognition, function - GF77.20-P-3000S

MODEL 215.3 

MODEL 220.0 /1 with CODE (414a) Electric glass sliding/pop-up roof 

MODEL 220.0 /1 with CODE (491) USA version 

MODEL 220.075 /175 with CODE (498) Japanese version 

Function 

The overhead control panel control module (N70) receives voltage pulses from the Hall sensor 1 (M12b1) and Hall sensor 2 (M12b2) located on the SR motor (M12m1) and evaluates them for position recognition. If the voltage pulses are absent for longer than 0.6 s in spite of motion actuation, the overhead control panel control module (N70) recognizes lock-up and switches off the SR motor (M12m1).

If lock-up is recognized, the sliding/pop-up roof (SR) (M12) is always desynchronized.