What is a turn signal flasher?

A turn signal flasher is a crucial component of a vehicle's signaling system that controls the blinking of the turn signal lights when the driver activates the turn signal. It functions by interrupting the electrical current to the lights, creating a rhythmic on-and-off pattern. Typically, this device can be either mechanical or electronic, with modern vehicles often using electronic flashers for more reliable and efficient operation. The flasher ensures that other drivers are alerted to a vehicle's intended direction changes, enhancing safety on the road.