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Components of Turn Signals and Their Functions

Designed as a warning device, turn signals first appeared on automobiles in 1939 and since then it became a standard equipment for all vehicles. Also known as blinkers, turn signals are designed to help communicate intended vehicle direction, warning other drivers of your impending moves. The turn signal system is operated by a turn signal switch, by activating the turn signal switch you are able to alert people around your vehicle by flashing a light bulb at the front and rear of the vehicle. So how does a turn signal device work?

The basic components of signals lights are bulbs at the front and back of the vehicle, and wires that is connected to the electrical system of a car. The turn signal circuit gets power when the ignition key is on. Turn signals work by pushing a lever up or down, which causes the vehicles turn signals to flash. This lever is usually mounted on the back of steering wheel together with other car features.

A turn signal flasher unit is incorporated into the system and is used to break and reconnect the blinker bulb circuit. The power enters through a fuse panel into the thermal flasher, cylindrical device often located under the dashboard of the car on the driver’s side. When you push the turn signal stalk down, the thermal flasher connects to the turn signal bulbs by way of the turn signal switch.

Failing to use signal lights can cause road accidents. Without this device, you might not see a car in your blind spot or which way the car is going. If the blinker system is not operating check the fuse first, then try replacing the flasher. Always replace blinker bulbs with recommended bulbs. Driving with broken or not working signal lights can attract traffic police.

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