A blinking malfunction indicator lamp (MIL), often called an engine light, signals a serious problem within the vehicle’s engine or related systems. This illumination pattern indicates that an issue is occurring that could potentially damage the catalytic converter if continued operation persists. This damage can result from unburnt fuel entering the exhaust system. Immediate attention is required to prevent further complications. For example, a flashing light accompanied by rough engine running strongly suggests a misfire.
Addressing a flashing indicator promptly is crucial because catalytic converter repairs are typically expensive. Furthermore, neglecting the initial problem could lead to more extensive and costly repairs throughout the engine or emissions systems. Historically, illuminated indicators were a simple signal of a problem; however, modern vehicles’ sophisticated on-board diagnostics now allow for nuanced error reporting, distinguishing between minor issues and severe, potentially damaging malfunctions.