Check Engine Light Diagnosis
The process of determining the specific issue or issues causing a vehicle's check engine light to illuminate. This typically involves using a diagnostic tool to read the vehicle's onboard computer system for error codes, which can then be interpreted to identify the underlying problem. Common reasons for a check engine light to come on include issues with the engine, emissions system, fuel system, or other essential components of the vehicle. Proper diagnosis is crucial for addressing the root cause of the problem and ensuring the vehicle continues to operate safely and efficiently.