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Home >> BMW >> 2014 >> M6 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 1105 (Functional Description - F10 - Transmission & Driveline System, Exterior Lighting, Towing, Cruise Control System) >> Exterior Lighting - Functional Description >> LED headlight >> Rain-light-solar-condensation sensor

Rain-light-solar-condensation sensor

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The light sensor detects the ambient brightness and the brightness of the frontal light. The signal is transmitted as a message on the LIN bus to the junction box electronics (JBE) or the Body Domain Controller (BDC).

The junction box electronics (JBE) adopt the signals into the corresponding CAN message and send this in cycles (signal values unchanged) or event-controlled (signal values changed). This provides the footwell module (FRM) with the request to switch the driving lights on or off when the automatic driving lights control is activated.

The 2 light sensors (forward light sensor and ambient light sensor) register ambient brightness and monitor the lighting ahead of the vehicle.

Fig 1: Identifying Rain-Light-Solar-Condensation Sensor
G09909944Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
A Ambient brightness
B Forward lighting intensity
1 Windscreen
2 Bonding surface
3 Forward lighting sensor optics
4 Forward lighting sensor receiver diode
5 Rain-light-solar-condensation sensor
6 Ambient light sensor optics
7 Ambient light sensor receiver diode