Why wont the speedo or rev counter work on Ford Mondeo?

If the speedometer or rev counter in a Ford Mondeo is not working, it could be due to a faulty vehicle speed sensor (VSS), a malfunctioning instrument cluster, or issues with the wiring or connections. In some cases, blown fuses or problems with the engine control unit (ECU) can also affect these gauges. Checking these components can help diagnose and resolve the issue. If the problem persists, consulting a professional mechanic is advisable.