Why is the immobiliser light flashing Ford Mondeo 1998?

The flashing immobiliser light on a 1998 Ford Mondeo typically indicates an issue with the vehicle's security system, often related to the immobiliser recognizing the key or key fob. This could be due to a faulty key, a dead battery in the key fob, or an issue with the immobiliser system itself. If the light continues to flash and the vehicle won't start, it may be necessary to check the key's transponder chip or consult a professional for diagnostics.