Roller Sun Blind on Rear Window: Notes

The roller sun blind on the rear window can be operated by means of the roller sun blind switches. There are three operating points:

• Driver's door switch cluster

  The junction box electronics receives the switch status via the K-CAN2.

• Switch cluster in rear driver's side armrest*
• Switch cluster in rear passenger's side armrest*.

*The junction box electronics cyclically evaluates the switches at the rear doors via the LIN-bus.

The roller sun blind for the rear window is raised or lowered by briefly pressing the switch.

A special function is activated when the switch for the rear window roller sun blind is pressed longer. This special function allows all three roller sun blinds to extend or retract to assume the same position.

In this function, the roller sun blind for the rear window is actuated and, if necessary, also the roller sun blinds for the side windows.

Every time the roller sun blinds are operated, their positions are stored in the junction box electronics.

The end stops are detected by the motors blocking, thus cancelling activation.

A repeat inhibit function is integrated in the system to prevent the motor overheating due to continuous operational requests initiated by children playing with the switch. The repeat inhibit blocks operation of the roller sun blind in the down position. Once started, movement of the roller sun blind is not interrupted by the repeat inhibit.

The renewed enable to raise the roller sun blind depends on the number of times the roller sun blind is operated and the intervals between operation.