What does a car with two wavy lines mean?

[Valeria]

A car with two wavy lines represents the vehicle stability system indicator, indicating that the anti-skid function is activated. Below is relevant information about fault indicators: 1. Fault types: Possible issues include overheating of the dry dual-clutch transmission clutch, intervention or malfunction of the fuel cutoff system, parking sensor failure, exterior light bulb failure, engine oil pressure sensor failure, or traction control system warning/failure. 2. Fault warnings: All lights illuminate during ignition startup as the system performs automatic detection, and they automatically turn off after completing the check. Vehicle fault indicators are categorized into fault warning lights and reminder indicators. Red color signifies faults requiring immediate attention or critical warning reminders.

[OVera]

When the engine malfunction indicator light (the yellow wavy symbol) illuminates on the dashboard, it typically indicates that the vehicle's computer has detected abnormal engine operation. Possible causes include sensor issues, emission non-compliance, poor fuel quality, or aging spark plugs. I once triggered this light by using the wrong fuel grade - while the car remained drivable, it's advisable to get it checked promptly to avoid potential long-term damage to the catalytic converter or even affect annual inspections. As a first step, try tightening the fuel cap, as sometimes poor sealing can trigger fault codes.

[SanCollin]

That little yellow water wave light on the dashboard is really annoying. The most common issues we see at our repair shop are oxygen sensor errors or throttle carbon buildup. This light indicates an emission system abnormality but won't cause immediate breakdown. I had a customer who drove 2,000 kilometers with the light on and ended up needing catalytic converter repairs. I recommend using a diagnostic scanner to read the trouble codes first, then address the specific fault points accordingly. If you replace the oxygen sensor yourself, it can be done for under 500 yuan.

[StDelilah]

This icon is professionally called the engine malfunction indicator light, indicating that the ECU has detected operating data exceeding the standard limits. Common triggers include excessively rich or lean air-fuel mixture, misfiring cylinders, or a failed catalytic converter. The most bizarre case I've encountered was a rat chewing through the wiring harness triggering the alarm. Besides increased fuel consumption, the light may also limit power output, especially in turbocharged models which are more sensitive. Don't randomly disconnect the battery to clear fault codes yourself, as this can easily mask the real problem.