What is the reason for the dashboard light constantly flashing?
2 Answers
The dashboard light constantly flashing is caused by a serious malfunction in the car. If this situation occurs, it is recommended to immediately go to a 4S shop and have a professional technician use a professional diagnostic computer to read the fault code. There are fault lights on the car's dashboard, and when a fault light comes on, it indicates that a certain part of the car has malfunctioned. In fact, the part of the car that is prone to malfunction is not the mechanical system, but the electronic system. There are many sensors and circuits in the car, and the car also has a computer. The computer collects data through sensors and then controls a certain part through actuators. If these electronic systems malfunction, the car will not be able to operate normally, and the fault light on the dashboard will come on.
Having driven for so many years, I've seen dashboard lights flicker quite often. The most common cause is poor contact—loose connectors behind the dashboard or aging, loose wiring, which flickers more noticeably when the car vibrates. Voltage instability is another reason; a dying battery or unstable alternator output can interfere with the dashboard. If the dashboard itself is faulty, such as internal circuit shorts or bulb failures, it can also cause flickering. I recommend avoiding DIY electrical tinkering and taking the car directly to a professional repair shop for diagnostics—safety first. Additionally, it’s wise to check other electrical components like headlights and the radio for abnormalities, as a comprehensive assessment helps pinpoint the issue faster. Don’t forget to clean the dashboard during car washes to prevent moisture from corroding the circuit contacts.
