GF82.85-P-2006QMU Switch On/Off Behavior, Function

GF82.85-P-2006QMU Switch On/Off Behavior, Function
- with CODE (530) COMAND APS USA (with navigation system)


Activating navigation
When the driver's door is opened navigation is activated automatically via the Controller Area Network bus class B (interior) (CAN-B). When the digital versatile disk (DVD) is inserted this process can be accompanied by faintly audible noises from the DVD-ROM disk drive integrated in the COMAND operating, display and control unit (A40/3). The display of the COMAND operating, display and control unit (A40/3) remains switched off. If no change in status occurs at the transmitter key (A8/1) as a result of this (e.g. circuit 15R ON), navigation remains active for 30 minutes.

Activation of entire system
All other subsystems are activated when the transmitter key (A8/1) is inserted into the EIS [EZS] control unit (N73) in position 0 (circuit 15C ON).

The display is switched on in position 1 (circuit 15R ON), provided that the COMAND operating, display and control unit (A40/3) was switched on before the last time the transmitter key (A8/1) was removed. The COMAND operating, display and control unit (A40/3) is now operational. The system which was active before it was last switched off (e.g. radio) is switched on and the corresponding basic menu is displayed. If the COMAND operating, display and control unit (A40/3) was switched off for longer than 30 minutes a warning menu with notes on using the system appears.

Conduct when pushing "ON" button
The COMAND operating, display and control unit (A40/3) can also be switched on by pressing the "ON" button when the transmitter key (A8/1) is removed. All the functions are then available for 30 minutes. The COMAND operating, display and control unit (A40/3) switches off automatically after 30 minutes have elapsed. If a cutout has occurred after 30 minutes, the system can be switched back on again by pressing the "ON" button. The cycle starts from the beginning.

Switch off characteristics
The COMAND operating, display and control unit (A40/3) is switched off (circuit (<>) OFF) (A8/1)15C when the transmitter key is removed. The run-on time of 30 minutes begins Navigation system (standby). All the important localizing parameters are stored during the run-on time. The run-on time of the audio systems is adjustable and is performed in the plant when the COMAND operating, display and control unit (A40/3) is installed. Furthermore, the COMAND operating, display and control unit (A40/3) is always on "Standby" when CAN-B is active.

Pressing the DISP" button, only induces the monitor to switch between the day, night and off modes.

Switch off characteristics at undervoltage
The COMAND operating, display and control unit (A40/3) constantly monitors battery voltage. The system behaves as described below depending on the voltage value.
If the battery voltage drops below 11.5 V (battery warning area), a message appears in the display of the COMAND operating, display and control unit (A40/3) asking for the engine to be started. If the engine is not started, a further warning is issued after 3 minutes that there are still 10 seconds left to start the engine before the system shuts down. In this case switching on the engine prevents the system from being automatically shut down. If the system has shut down and the voltage rises above 11.5 V again, the COMAND operating, display and control unit (A40/3) does not switch on again automatically.

After being switched off the system can be switched on again manually. The warning procedure is then repeated until the fault is repaired.

Battery voltage below 9.5 V (undervoltage)
The COMAND operating, display and control unit (A40/3) is automatically put into a defined standby condition, in which only the battery voltage continues to be monitored. In addition to this the current operating status is stored.

The COMAND operating, display and control unit (A40/3) cannot be operated in this condition or is not addressable via STAR DIAGNOSIS. Communication with external components does not take place.