What are the reasons for the dashboard indicator lights to illuminate?
2 Answers
Car dashboard indicator lights illuminate due to: 1. ECU CAN bus failure; 2. Poor contact at the ECU CAN interface; 3. Excessive dirt and carbon deposits causing abnormal air flow, preventing accurate control of normal air intake; 4. Low fuel pressure and poor constant pressure performance leading to inferior system atomization levels. Dashboard indicator lights include: ABS indicator, EPC indicator, seat belt indicator, battery indicator, oil pressure indicator, fuel level indicator, door ajar indicator, airbag indicator, brake disc indicator, parking brake indicator, coolant temperature indicator, engine indicator, turn signal indicator, high beam indicator, washer fluid indicator, fog light indicator, and position light indicator.
I enjoy tinkering with cars in my spare time, and there are many reasons why dashboard lights come on. The most common is the engine malfunction indicator light, which often illuminates due to sensor issues, spark plugs needing replacement, or fuel line blockages. I remember last time my car's light came on, and after checking, I found the air flow meter was dirty—cleaning it fixed the issue. The oil pressure light is particularly dangerous if it comes on; you should stop immediately and check the dipstick to prevent engine damage. The ABS light usually indicates a brake abnormality, making the car prone to skidding, especially in rainy conditions. Then there's the seatbelt reminder light—small but crucial for safety. My advice is not to delay when a light comes on: first, use an OBD scanner to read the error codes and identify the source, then follow the manual's instructions for handling it. Regular maintenance can reduce the likelihood of faults, as small issues can escalate into costly repairs.
