GF77.20-P-2022GZ Tilting/Sliding Roof Rain Closing, Function

GF77.20-P-2022GZ Tilting/Sliding Roof Rain Closing, Function
- with CODE (414) Power glass tilting/sliding roof
- except CODE (494) USA version
- up to model year 08


Function requirements
^ Vehicle locked
^ Tilting/sliding roof opened in sliding roof position

Function
Tilting/sliding roof rain closing is actuated as follows:
^ Moistening of windshield is recognized by rain/light sensor (B38/2)
^ 12 h after the vehicle was locked last
^ The operating voltage or operating temperature is no longer within the range of the rain/light sensor

If the tilting/sliding roof is in the open sliding roof position when the vehicle is locked, the rain/light sensor is activated for rain closing by the overhead control panel control unit (N70) after 30 s.

If the rain/light sensor recognizes rain on the windshield during monitoring, it wakes up the overhead control panel control unit.It transmits the command "Close tilting/sliding roof, rain" to the front SAM control unit (N10) via the CAN interior and activates the command "Move tilting/sliding roof to pop-up position" automatically.Monitoring is then no longer performed. The interior protection alarms are ignored during SR rain closing triggered by the rain/light sensor.After rain closing, the interior protection is always rearmed unless it has been previously deactivated in the instrument cluster.A1

Function abort
The excess force limiter is also effective during rain closing and reverses the direction of the tilting/sliding roof.

When the excess force limiter is actuated, the rain/light sensor is no longer monitored.