Cooper (R50) L4-1.6L (W10) (2002)
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Sunroof / Moonroof Module: Description and Operation
Sunroof Motor With Control Unit
The drive for the sunroof is provided by a motor which is controlled by the integrated control unit. This assembly is mounted in front of the roof area
between the roof liner and the lower section of the sunroof frame.
The control unit has a 13-pin connector that provides the connection between the wiring harness, the switch and the K-bus.
Two sensors (Hall sensors) are integrated in the motor/control unit for position recognition. When the motor is running, the control unit continuously
monitors the sensors.
Sunroof (SHD)
The sunroof is controlled by the sunroof module. The module contains all load circuits and is connected directly to the sunroof drive.
The module is allocated to the vehicle by means of encoding.
Components
Sunroof module
The sunroof module contains the following components:
DC motor with attached step-down gear mechanism (worm drive)
Two integrated position sensors (Hall sensors)
Electronic control
Switches
The sunroof is operated by means of a switch with five different switch positions.
Lift (switch pressed)
Slide OPEN (push back switch)
Close (push switch forward)
Slide OPEN - press and hold
Close - press and hold
The five positions are transferred via three lines to the sunroof (SHD) module (ground signal).
Automatic mode, which opens or closes the sunroof completely, is triggered by pressing and holding the switch in slide OPEN and close position.
If the switch is moved towards Lift when the sunroof is open, the roof moves automatically to the end position Lift open. The process can be interrupted
by pressing the switch again.
Functions
Position detection and anti-trapping protection
Two position sensors (Hall sensors) register the number of motor revolutions and thus determine the position of the sunroof. The drive is switched off on
reaching the relevant end position.
