Mazda 3 speedometer intermittently turns dark while driving but works when stopped on Mazda 3

Some Mazda 3 owners report experiencing issues with their speedometer intermittently turning dark while driving, although it functions properly when the vehicle is stopped. These problems may be caused by various factors, including faults with the Vehicle Speed Sensor (VSS) and electrical issues. The P0500 code, indicating a VSS circuit malfunction, is commonly associated with speedometer problems in these vehicles. Additionally, a faulty speed sensor can lead to inaccurate speed readings, potentially creating unsafe driving conditions. Electrical problems, including stray voltage affecting the speedometer display, may also contribute to this issue. To address these concerns, owners are advised to conduct diagnostic testing, seek professional inspection, and consider repair or replacement of faulty components to resolve the speedometer malfunction effectively.