2012 911 Section 9-1 11/3/11 10:30 AM Page 235
911 Carrera 911 Carrera S
The front-end electronics control unit communicates with the gateway via CAN Comfort. The front-end electronics control unit includes several function groups and functions. These will be described in more detail below.
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Lighting function group The side marker lights, dipped beam, high beam and fog lights are controlled by a rotary light switch which is connected to the front-end electronics via a LIN data bus system and a hard-wired connection. The automatic headlights function (rotary light switch position “1”) allows automatic control of light functions by the front-end electrics electronics control unit. This takes place depending on light and weather conditions. A rain-light-moisture sensor is connected via a LIN bus for detection of the prevailing conditions. Other functions such as the headlight flasher and the various direction indicator functions are controlled by the combined steering column
Electrics and electronics
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9.5 Front-end electronics control unit
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module connected to the CAN data bus. The hazard warning light function is activated manually by the hazard warning light button or automatically via a crash signal sent via the CAN data bus (crash flashing).
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