When the switch lever is moved from the middle position down, the left turn indicators are turned on, and when the lever is switched up, the right turn indicators are turned on. After the end of the turn, the switch lever automatically returns to the middle position, and the direction indicators turn off. If one of the turn signal control lamps flashes at an increased rate or lights up but does not flash, or does not light up at all, this indicates a malfunction in the turn signal circuit. Check the condition of the fuses and lamps.