1993 Nissan 240SX Speedometer and digital display problem?

If your 1993 Nissan 240SX has issues with the speedometer or digital display, it could be due to a faulty speed sensor, a malfunctioning instrument cluster, or wiring issues. Start by checking the speed sensor located on the transmission, as a failure here can prevent the speedometer from functioning. Inspect the wiring harness for any loose connections or damage, and consider testing the instrument cluster for faults. If these components appear to be in good condition, it may be necessary to replace the entire cluster.