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Assist systems operating facility

The button in the driver assistance system operating facility is used to switch the lane change warning on and off.

Fig 1: Identifying Driver Assistance System Operating Facility Buttons
G09909961Courtesy of BMW OF NORTH AMERICA, INC.

Example F01

Item Explanation
1 Driver assist systems control panel
2 Lane change warning button
3 Brake assist button
4 Lane departure warning button
5 BMW Night Vision button
6 Button, Head-Up Display

Example F01: 

The control panel is connected via the local interconnect network (LIN) bus to the footwell module (FRM). A bus signal from the FRM to the control unit for Integrated Chassis Management (ICM) informs regarding actuation of the button. The ICM control unit only allows the lane change warning to be enabled if the system is operating trouble-free. Only then is there positive confirmation by means of a bus signal to the footwell module (FRM) to activate the function indicator light of the button. If there is a fault in the system, the function indicator light remains switched off despite keystroke. This enables the driver to see that the lane change warning is no longer available.

The following graphic shows the operating facility of the assist system in an enhanced version.

The driver assistance system operating facility is located in the center console by the hazard warning button. The driver assistance system operating facility is connected through a six-pin plug connection.

Fig 2: Identifying Hazard Warning Switch And Plug Connection
G09909962Courtesy of BMW OF NORTH AMERICA, INC.

Example F15

Item Explanation
1 Assist systems operating facility
2 Hazard warning switch
3 six-pin plug connection

The lane change warning is switched on or switched off via the button for the driver assistance system operating facility. At the start of the journey all driver assist systems are active.

Example F15: 

The operating facility is connected to the Body Domain Controller (BDC) via the local interconnect network bus. A bus signal from the BDC to the control unit for Integrated Chassis Management (ICM) informs regarding actuation of the button. The ICM control unit only allows the lane change warning to be enabled if the system is operating trouble-free. Only then is there positive confirmation by means of a bus signal to the Body Domain Controller (BDC) to activate the function indicator light of the button. If there is a fault in the system, the function indicator light remains switched off despite keystroke. This enables the driver to see that the lane change warning is no longer available.