Why Has the Intelligent Headlight Control Stopped Working?

[CassidyLee]

This situation is usually caused by a malfunction in the front headlight bulb, which prevents the intelligent headlight system from operating normally. Below is some relevant information about automatic headlights: 1. Principle: Electronic components such as photoresistors act as sensors (installed behind the rearview mirror, etc.) and send electronic signals to the ECU (Electronic Control Unit, similar to a computer CPU) to inform it whether to turn the headlights on or off, or to switch between high and low beams. The ECU controls the headlight switch and the change between high and low beams. Thus, when driving in environments where the light suddenly becomes dim, the headlights will automatically turn on, and when there is sufficient light, they will automatically turn off. Additionally, during nighttime driving, they may automatically switch between high and low beams when encountering oncoming traffic. 2. Usage: Turn the combination light switch to the AUTO position to activate the automatic headlight function. When driving at night or entering a tunnel, the headlights will automatically turn on.