Why does my speedometer stop working

Thomas Vincent possibility is a failed Vehicle Speed Sensor or a bad instrument cluster. First thing to do would be to have the OBD codes scanned to see if your Nissan throws any codes. It will always help if you give you exact model and model year since there are sometimes changes between model years.

The speed sensor is located on the transmission housing. Follow the cable that runs along the firewall to the transmission it will terminate into the speed sensor. Pull the clip at the end of the cable and the cable should release without trouble. Use a 10mm socket and an extension to unbolt it. After you remove that one bolt you can lift up on the speed sensor and remove it.