2017 Toyota Yaris Speedometer Isn't Working

Common Causes of Speedometer Malfunctions in Your 2017 Toyota Yaris and How to Fix Them

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Reviewed by
Devin Cabugcal
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 2017 Toyota Yaris 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 shifting.
  • 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's systems.
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 2017 Toyota Yaris?

To effectively diagnose a non-functioning speedometer in a 2017 Toyota Yaris, begin with a systematic approach that prioritizes simpler solutions before delving into more complex diagnostics. Start by checking the fuse associated with the speedometer in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the speed sensor located on the transmission; this component is crucial for relaying speed data to the speedometer, and any damage or disconnection can lead to malfunction. Following this, examine the wiring connections to both the speed sensor and the speedometer for any signs of wear or looseness, as faulty connections can disrupt the signal. If these preliminary checks do not resolve the issue, utilize a diagnostic tool to test the speedometer itself, which will help identify if the problem lies within the unit. Additionally, ensure that the vehicle is receiving a speed signal from the sensor, as the absence of this signal can also cause the speedometer to fail. If all else fails and the speedometer remains non-functional, it may be time to consult a professional mechanic for further assistance. By following this structured diagnostic approach, you can efficiently identify and address the issue with your speedometer.

What are the common causes for a malfunctioning speedometer in a 2017 Toyota Yaris?

When troubleshooting a malfunctioning speedometer in a 2017 Toyota Yaris, it's important to understand the common problems that could be causing the issue. One of the primary culprits is a faulty vehicle speed sensor, which plays a crucial role in relaying speed information to the speedometer. If this sensor is malfunctioning, it can lead to inaccurate readings. Additionally, faulty wiring connected to the speedometer can disrupt the signal, resulting in erratic or non-functional speed displays. Another potential issue lies within the instrument cluster itself; problems such as a defective gauge or internal circuitry can also lead to speedometer malfunctions. Furthermore, a defective speedometer head may fail to show the correct speed, while issues with the vehicle's computer system can impact the overall accuracy of the speedometer. For DIY enthusiasts, it's advisable to conduct a thorough inspection of these components to identify the root cause of the malfunction before seeking professional assistance.

How urgent is it to address the non-functioning speedometer in a 2017 Toyota Yaris?

When faced with a non-functioning speedometer in a 2017 Toyota Yaris, it is crucial to act swiftly. Ignoring this issue can lead to serious legal repercussions, as driving without accurate speed readings may result in unintentional speeding and subsequent fines or penalties. Moreover, the safety of both the driver and others on the road is at stake; without a working speedometer, maintaining appropriate speeds becomes challenging, increasing the risk of accidents. Additionally, a malfunctioning speedometer may signal deeper mechanical problems that could compromise the vehicle's overall performance, leading to more costly repairs down the line. Lastly, for those considering selling their Yaris, a non-operational speedometer can significantly diminish the car's resale value, as potential buyers are likely to be wary of unresolved issues. Therefore, addressing the speedometer malfunction promptly is not just a matter of convenience, but a necessary step to ensure safety, compliance, and the longevity of your vehicle.

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