What causes several warning lights to suddenly illuminate in a Honda XR-V?

[RyderAnn]

Here are the reasons why several warning lights suddenly illuminate in a Honda XR-V: 1. CAN bus failure in the ECU, or poor contact in the ECU's CAN interface. 2. Excessive dirt and carbon deposits, causing abnormal air circulation, which prevents accurate control of normal air intake, leading to unstable gas content and poor engine performance. 3. Low fuel pressure combined with poor constant pressure performance results in low system atomization levels, making the car difficult to start. Below are the types of indicator lights on the dashboard: 1. First category: Daily indicator lights, such as turn signal lights, light indicators, seat belt indicators, cruise control indicators, parking indicators, etc., all fall into this category. They only serve to indicate the working status of various vehicle functions. 2. Second category: Warning indicator lights, such as the fuel level indicator and windshield washer fluid level indicator. 3. Third category: Fault indicator lights, including the engine (exhaust system) fault light, oil system fault light, battery and power generation system fault light, etc. These fault indicator lights rarely illuminate under normal circumstances.