What does it mean when the engine symbol flashes yellow?

1 Answers
VanPaislee
07/29/25 9:01am
When the yellow light on the dashboard illuminates during vehicle use, it indicates that the vehicle's engine requires maintenance and servicing. Generally, it is necessary to promptly inspect the engine and seek a nearby vehicle repair shop for maintenance, as the engine is the heart of the vehicle. Regular and timely maintenance is essential to prevent the vehicle from breaking down on the road during use. The reasons for the engine yellow light coming on are as follows: Sensor issues: The sensors mentioned here include those for coolant temperature, crankshaft position, air flow, intake air temperature, oxygen sensors, etc. When these sensors are damaged, have poor contact, or experience signal interruption, the vehicle's ECU cannot accurately obtain engine data, which will trigger the engine fault light. Maintenance issues: Poor engine maintenance is the most common cause of the engine fault light illuminating. Vehicles have specific maintenance cycles, and if the owner does not adhere to the scheduled maintenance, combined with poor driving habits, it will increase the operational burden on the engine.
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