Acoustic Dimming

Acoustic indicator

Monitoring turn signal indicator lamps
The turn signal indicator lamps are monitored by means of the switching noise of an encapsulated relay operating synchronously with respect to the turn signal indicator lamps.

Light warning
The light warning is provided only acoustically. The relay installed in the instrument cluster for monitoring the turn signal indicator lamps is also used for the light warning. The light warning sounds when the driver's door is opened for the first time and when the parking lights are switched on for 8 cycles each at approx. 0.5 seconds continuous tone at approx. 64 Hz and with a subsequent 0.5 second pause. During the light warning, the turn signal indicator lamps are only monitored by means of the indicator lamps.

Seat belt warning
The acoustic seat belt warning is dependent on the coded data and is controlled by the light check module in the form of a telegram on the body bus ( K-bus) to the instrument cluster. When the seat belt warning is triggered, the gong tone 3 (T3) is activated for may. 6 seconds with pauses of approx. 1.3 seconds.

Ignition key warning
The acoustic ignition key warning is dependent on the coded data and is controlled by the light check module in the form of a telegram on the body bus ( K-bus) to the instrument cluster. When the ignition key warning is triggered, the gong tone 3 (T3) is activated for max. 60 seconds with pauses of approx. 1.3 seconds.

Temperature warning
The acoustic outside temperature warning is controlled dependent on the temperature detected by the outside temperature sensor. If the temperature drops below a threshold of +3 °C, a warning tone in the basic instrument cluster sounds at approx. 2 kHz generated by a beeper built into the instrument cluster.

In the case of an instrument cluster with on-board computer functions, the temperature warring is provided by a short gong tone 3 (T3).

Speed warning
The speed warning is dependent on the coded data where the speed value, at which the warning is to be activated is defined by the coding program. The speed warning is legally stipulated for the country-specific version "Gulf State".