Why wont my speedometer work to my car?

There are several potential reasons why your speedometer may not be working. It could be due to a faulty speed sensor, a broken speedometer cable, or issues with the vehicle's electronic control unit (ECU). Additionally, problems with the instrument cluster itself, such as a blown fuse or wiring issues, could also affect the speedometer's functionality. It's advisable to have a mechanic diagnose the issue to determine the exact cause.