Indicator, Visual Collision Warning
Indicator, visual collision warning consists of 12 LEDs in three groups. The LEDS are directly connected to the Forward Sensing Module (FSM).
The indicator is used to visually warn the driver that a collision is imminent, in order to reduce the risk of, or prevent, collision. The indicator is also used to visually inform the driver when the time interval to the vehicle in front is shorter than the set interval.
The visual collision warning indicator is located at the upper edge of the dashboard on the driver's side.
The Forward Sensing Module (FSM) controls the light intensity at the visual collision warning indicator via pulse width modulation. The three groups of LEDs are separately connected to the Forward Sensing Module (FSM), this means that the Forward Sensing Module (FSM) can control each group of LEDs individually.
The indicator has an internal temperature sensor. The task of the temperature sensor is to protects the electronics. At temperatures above 100 °C / 212 °F the indicator does not light the LEDs when the Forward Sensing Module (FSM) requests it. When this has occurred, the Forward Sensing Module (FSM) prevents the indicator from being lit for a further 10 minutes.
The visual warning signal may temporarily be out of order at high passenger compartment temperature caused by, e. g., strong sun light. If this happens, the warning sound is activated even if it is deactivated in the menu system.