What Causes the Car Dashboard Lights to Illuminate?

[DavidRose]

There are several reasons why the car dashboard lights may illuminate, including ECU CAN bus failure and poor contact at the ECU CAN interface. Excessive dirt and carbon deposits can obstruct airflow, preventing accurate control of normal air intake, leading to unstable gas content and poor engine performance. Low fuel pressure combined with poor constant pressure performance results in inadequate system atomization, making the car difficult to start. Dashboard indicator lights can generally be categorized into three types. Daily Indicators: These are the most common lights encountered while driving, such as turn signal indicators, light indicators, seat belt indicators, cruise control indicators, and parking indicators. They serve to indicate the operational status of various vehicle functions. Warning Indicators: Examples include the fuel level indicator and windshield washer fluid level indicator. These lights alert the driver to promptly replenish the corresponding fluids to resolve the issue. Fault Indicators: These include the engine (exhaust system) warning light, oil system warning light, battery and charging system warning light, among others. Fault indicators rarely illuminate under normal circumstances, but when they do, they indicate that the vehicle has encountered a malfunction or abnormality. Minor issues may affect driving safety, while severe ones could potentially damage the vehicle. Immediate inspection and repair are necessary, or contact the vehicle's brand 4S store for assistance.