The check engine light is an element of your car's on board diagnostics (OBD) system. It's a indication that your onboard diagnostics system has detected a malfunction in the automobile's emissions, ignition or fuel systems.
What Your Check Engine Light Is Indicating
The check-engine light (commonly a yellow or orange outline of an engine with a word "Check") should come on for a few seconds every time you start the engine along with other warning lights.
A yellow light is an indicator of a problem, but depending on the automobile, you may have a small amount of time before that yellow light turns into a red light.
A red check engine light or perhaps a blinking check engine light can happen. In these scenarios, the matter probably needs immediate attention.
When the check engine light fires up, either blink or stay steady, based on the problem. Either way, you should have the automobile inspected by a Qualified Service Technician at the earliest opportunity.