Ducati SPORT TOURING ST3 Manuel D'utilisation Et Entretien page 126

Left switch (fig. 18)
1) Dip switch, light dip switch, two positions:
position = low beam on;
position = high beam on.
2) Switch = 3-position turn indicator:
centre position = OFF;
position = left turn;
position = right turn.
To cancel turn indicators, push in once switch returns to
central position.
3) Button = warning horn.
4) Button = passing.
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4
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fig. 18
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