What Causes the Turn Signal to Stay On Without Flashing?

[AshlynLee]

Turn signal staying on without flashing is usually caused by a faulty relay. The solution is to replace the fuse inside the relay. It may also be due to a loose connection in the wiring, which requires inspection and can be done at a repair shop. The two wires of the flasher have polarity; if they are connected in reverse, the light will stay on without flashing. In this case, simply swap the two wires of the flasher. Introduction to Turn Signals: Turn signals are important indicator lights that are activated when a motor vehicle is turning, alerting surrounding vehicles and pedestrians. How Turn Signals Work: Turn signal bulbs use xenon tubes, controlled by a microcontroller circuit, alternating left and right with continuous flashing. The turn signal employs a flasher to achieve the blinking effect. Types of Turn Signals: Turn signals can mainly be divided into three types: resistance wire type, capacitor type, and electronic type.