Why won't my speedometer work on my 1998 qx4?

If your speedometer isn't working on your 1998 Infiniti QX4, it could be due to several issues. Common causes include a faulty vehicle speed sensor (VSS), damaged wiring, or a malfunctioning instrument cluster. Additionally, issues with the transmission or problems with the vehicle's computer system could also affect the speedometer's functionality. It's best to have a mechanic diagnose the problem to pinpoint the exact cause.