Why is my vw t4 speedo not working?

There can be a variety of different issues that can cause the Volkswagen T4 speedometer to not work. The most common issues that have been reported by consumers are a bad vehicle speed sensor (VSS), a defective speedometer, or an electrical problem such as short or damaged wiring in the dashboard. The first thing You should check is the instrument cluster to see if everything is getting power and check the wiring to see if there is any visible damage. Now, after that, if You have not found the problem You can check the vehicle speed sensor which there will be two on the truck. The first one is on the front left side of the transmission and one of the rear tail of the tranny.