What Causes the Engine Yellow Light to Illuminate on a Car?

[DeBrianna]

There are two scenarios when the engine yellow light on the car dashboard illuminates, as described below: The first scenario: When the car's power is turned on, the vehicle undergoes a self-check. At this time, not only the engine yellow light but also other warning lights will illuminate simultaneously and then turn off together. This is a normal phenomenon. The second scenario: After the car is started, the engine fault yellow light remains illuminated. This is the ECU alerting that there is a fault in the engine, which is an abnormal phenomenon. Additional information: If the engine fault light comes on, first check the coolant temperature gauge and the oil pressure warning light. If the coolant temperature gauge and oil pressure warning light are not activated, the car can still be driven, but it is essential to control the speed carefully and promptly drive to a service station for inspection.