2024 Mazda 3 Speedometer Isn't Working

Troubleshooting Common Issues with the Speedometer in Your 2024 Mazda 3 and How to Fix Them

Find Repair Location
Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
35% chance it's the
Vehicle Speed Sensor (VSS)
0%
28% chance it's the
Speedometer
0%
23% chance it's the
Electrical Issue
0%
14% chance it's
Something else
The most common reasons a 2024 Mazda 3 speedometer isn't working are the vehicle speed sensor (VSS), a faulty speedometer, or an electrical issue.
  • Vehicle Speed Sensor (VSS): A faulty vehicle speed sensor can result in inaccurate speed readings and erratic transmission behavior.
  • Speedometer: A faulty speed sensor or a broken connection in the speedometer circuit can result in inaccurate speed readings.
  • Electrical Issue: A blown fuse or a short circuit in the wiring can cause various electrical issues in the vehicle.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the steps to diagnose a non-functioning speedometer in a 2024 Mazda 3?

To effectively diagnose a non-functioning speedometer in your 2024 Mazda 3, start by checking the fuse box for any blown fuses related to the instrument cluster, as this is a straightforward fix that can often resolve the issue. Next, inspect the vehicle speed sensor (VSS), which is a common culprit for speedometer malfunctions; ensure it is securely connected and free from damage. If these initial checks do not yield results, use a voltmeter to test the speedometer gauge itself, as a faulty gauge can prevent accurate readings. Additionally, examine the instrument cluster for any signs of malfunction, such as a defective speedometer head. It’s also crucial to inspect the wiring between the speed sensor and the instrument cluster for any wear or damage that could disrupt the signal. If you’ve gone through these steps and the speedometer is still not functioning, consider reaching out to the Mazda Customer Relations Department for further guidance or consult a professional mechanic for more in-depth repairs. Addressing speedometer issues promptly is vital for safe driving, as an inaccurate speedometer can lead to safety hazards and potential legal complications.

What could be causing the speedometer to malfunction in a 2024 Mazda 3?

When dealing with a malfunctioning speedometer in a 2024 Mazda 3, it's essential to understand the common problems that could be at play. One of the primary culprits is the Vehicle Speed Sensor (VSS), which, if faulty, can trigger a check engine light and generate trouble codes like P0500, indicating a VSS circuit malfunction. Additionally, electrical issues such as a bad wire or loose connection can lead to problems, often reflected in codes like P0720, which pertains to the output speed sensor circuit. If the speedometer gauge is completely unresponsive, it may be due to a defective gauge or speed sensor, and testing with a voltmeter can help pinpoint the issue. Furthermore, erratic speedometer readings can stem from a faulty speedometer sensor, causing the needle to fluctuate or remain stationary. Lastly, problems with the transmission speed sensor or ABS speed sensor can also disrupt the speedometer's functionality, as these components monitor the vehicle's speed and tire rotation. By accurately diagnosing these potential issues, DIYers can take the necessary steps to resolve the speedometer malfunction effectively.

How urgent is it to repair the non-functioning speedometer in a 2024 Mazda 3?

Addressing a non-functioning speedometer in your 2024 Mazda 3 is an urgent matter that should not be overlooked. The safety of both the driver and passengers is at stake, as an inaccurate speed reading can lead to dangerous driving situations, increasing the risk of accidents. Moreover, driving without a functioning speedometer can inadvertently result in speeding, which carries legal consequences that could lead to fines or other penalties. Beyond safety and legality, a malfunctioning speedometer can negatively impact your vehicle's performance, causing issues such as hesitation and power loss. Regular maintenance and prompt repairs are essential to ensure your Mazda 3 operates smoothly and efficiently. Ignoring these symptoms can lead to more significant problems down the line, making it crucial to prioritize the repair of your speedometer to safeguard your driving experience and vehicle integrity.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.