Operating facility for light, turn signal/high beam switch as well as the operating facility for assist systems

The high-beam assistant is switched on and off at the turn signal/high beam switch. To do this, the light switch must be in the automatic driving lights control (Position A) or low-beam headlight position. An additional prerequisite is that the low-beam headlights are switched on due to sufficient darkness.

For vehicles without automatic driving lights control, the high-beam assistant can also be activated for brightness. The high-beam assistant switches on the low-beam headlights based on the ambient brightness.

Fig 1: Identifying Turn Signal/High Beam Switch, On-Board Computer And High Beam Assistant Button

Courtesy of BMW OF NORTH AMERICA, INC.

Example shown: F30

The lane departure warning and collision warning are switched on and off using the button in the driver assistance system operating facility.

Fig 2: Identifying Lane Departure Warning And Collision Warning Button

Courtesy of BMW OF NORTH AMERICA, INC.

F30 shown

• Vehicles with front electronic module (FEM):

  The operating facility for driver assist systems is connected to the Front Electronic Module (FEM) over the LIN bus. A bus signal from the Front Electronic Module to the KAFAS control unit indicates the button has been pressed. The ICM control unit only allows the lane departure warning to be switched on if the system is operating trouble-free. Only then is there positive confirmation by means of a bus signal to the Front Electronic Module 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 allows the driver to see that the lane departure warning is not available.

• Vehicles with junction box electronics (JBE):

  The operating facility for assist systems is connected via LIN bus to the footwell module (FRM). A bus signal from the footwell module to the KAFAS control unit indicates the button has been pressed. The ICM control unit only allows the lane departure warning to be switched on if the system is operating trouble-free. Only then is there positive confirmation by means of a bus signal to the footwell module 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 allows the driver to see that the lane departure warning is not available.

• From F15: Vehicles with Body Domain Controller (BDC):

  The driver assistance system operating facility is connected to the Body Domain Controller (BDC) via the local interconnect network bus. A bus signal from the Body Domain Controller to the KAFAS control unit informs it that the button as been pressed. The ICM control unit only allows the lane departure warning to be switched on if the system is operating trouble-free. Only then is there positive confirmation by means of a bus signal to the Body Domain Controller to activate the button function indicator light. If there is a fault in the system, the function indicator light remains switched off despite keystroke. This allows the driver to see that the lane departure warning is not available.

Fig 3: Identifying Hazard Warning Switch And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

F15 shown

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.