Will the turn signal not work if the flasher is damaged?
2 Answers
If the flasher is damaged, it will cause the turn signal not to work. The solution for the increased flashing frequency of the left and right turn signals is usually due to a change in the circuit resistance caused by a burned-out bulb on one side. In this case, it is advisable to promptly visit a professional repair shop for replacement and repair by qualified personnel. Below is an introduction to car turn signals: 1. Definition of car turn signals: Car turn signals are important indicator lights that are activated when a motor vehicle turns to alert surrounding vehicles and pedestrians. 2. Working principle and classification of car turn signals: The turn signal lamp uses a xenon lamp tube, controlled by a single-chip microcomputer circuit, with left and right alternating flashing continuous operation; they can be mainly divided into three types: resistance wire type, capacitor type, and electronic type.
When the flasher unit fails, the turn signals may not necessarily stop working completely. In many vehicles, the flasher acts as a blinking controller—if it malfunctions, the turn signals might stay constantly illuminated instead of blinking, or simply turn off. This depends on the specific vehicle design: some models may experience a complete circuit interruption causing the lights to go out entirely when the flasher fails, while others might only lose the blinking function while the lights remain lit. I’ve encountered this issue before: once, my car’s turn signals stayed on without blinking, and after inspection, it turned out the flasher had overheated and burned out due to oxidized relay contacts inside. Never ignore this—promptly check the fuses and bulbs, as non-blinking turn signals can confuse other drivers and increase accident risks. If you notice similar symptoms like abnormal lighting, it’s best to visit a repair shop for professional testing. Replacing a flasher is usually inexpensive, costing around a hundred bucks.
