47
Functions in the sliding sunroof control unit J245
393_028
An anti-pinch protection function has been imple-
mented for safety reasons. A Hall sensor supplies
the signals needed to determine the position and
travel speed of the sunroof. Slow-movement stages
in the cycle are "learned" by the control unit.
The tilt sunroof can only be actuated when the con-
venience system central control unit J393 sends the
enable bit via the LIN bus.
This bit is set after "terminal 15 ON". The bit is reset
again after "terminal 15 OFF" and a delay of 10 min-
utes or after "terminal 15 OFF" and opening either of
the doors.
After power-down level 2 of the battery power man-
agement system, the tilt sunroof cannot be opened,
but can still be closed.
The system has also has an "emergency-close" func-
tion. If a closing cycle is interrupted due to activa-
tion of the anti-pinch protection system, the tilt
sunroof subsequently will reopen. If a closing cycle
is initiated by pressing the button within about 5
seconds after reopening, the anti-pinch protection
system is deactivated and the tilt sunroof motor
closes the Panorama tilt sunroof. The button must
be kept pressed throughout the closing cycle.
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