54 0... Notes on steel and glass slide/tilt sunroofs (initialization/normalization/learning of characteristic curve): Notes
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NOTE:
Initialization
comprises:
- Normalization
- Learning characteristic curve
The mechanical end positions are recorded and stored during normalization.
The characteristic curve is learnt immediately after normalization.
When the characteristic curve is learnt, the mechanical closing forces of the glass sunroof are recorded and stored for correct operation of the anti-trapping mechanism.
Initialization is started and implemented by pressing and holding switch in "Lift" direction.
Initialization depends on installed roof system and software used.
NOTE:
Then carry out initialization
:
- if the glass sunroof has been mechanically moved by means of the emergency actuator
- in the event of malfunctions, e.g. no one-touch function, no opening or no comfort function possible
- after disengagement of the drive unit
- after work is carried out on the mechanism of the glass sunroof
- after the control unit has been replaced
- after replacement of circumferential gasket
WARNING:
The anti-trapping mechanism is not active during initialization.
For correct initialization and function, the following conditions must be met:
- Ignition ON
- at room temperature (23°C ± 5°C)
- No direct solar radiation
- only when vehicle is at a standstill
- Fully charged vehicle battery
- in addition, for US vehicles, let engine run to enable key, if necessary
NOTE:
Subsequently described processes relate to a completely closed roof system. However, initialization can be started from any position.