vilkkurelettia

Vilkkurelettia, often referred to as a flasher relay or turn signal relay, is an electrical component commonly found in vehicles. Its primary function is to control the blinking operation of a vehicle's turn signals. When the turn signal switch is activated, it sends a signal to the vilkkurelettia, which then interrupts the flow of electricity to the turn signal bulbs at a regular interval, causing them to flash on and off. This visual cue alerts other road users of the driver's intention to change direction.

The vilkkurelettia typically contains an oscillating circuit. Older mechanical relays used a bimetallic strip that would heat up and bend, breaking the circuit, and then cool down and straighten, re-establishing the circuit. Modern vehicles often employ electronic vilkkurelettia, which use semiconductor components to achieve the same flashing effect, offering greater reliability and often incorporating additional features. The frequency of the flashing is determined by the internal circuitry of the relay. A common symptom of a failing vilkkurelettia is turn signals that flash too quickly, too slowly, or do not flash at all. Replacing the faulty relay is usually the solution to such issues.