2017 Toyota 86 Speedometer Isn't Working

Diagnosing Common Causes of Speedometer Malfunctions in Your 2017 Toyota 86 and How to Fix Them

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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 2017 Toyota 86 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 86?

To effectively diagnose a non-functioning speedometer in your 2017 Toyota 86, begin with the simplest potential issue: the fuse. Locate the fuse box and check for any blown fuses related to the speedometer, as this is a common and easily fixable problem. If the fuse is intact, the next step is to inspect the speed sensor, which is situated on the transmission. A faulty or disconnected speed sensor can prevent the speedometer from receiving the necessary data. Following this, examine the wiring connections to both the speed sensor and the speedometer itself; loose or damaged wires can disrupt the signal and lead to malfunction. If these preliminary checks do not resolve the issue, you may need to conduct a diagnostic test on the speedometer cluster to ensure it is functioning properly. Should you find that these steps do not yield results, it may be time to consult a professional mechanic who can provide the expertise and tools necessary for a more in-depth diagnosis. By systematically following these steps, you can identify and potentially resolve the issue with your speedometer, saving time and money in the process.

What are the common problems that could cause the speedometer to stop working in a 2017 Toyota 86?

When the speedometer in your 2017 Toyota 86 stops functioning, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is a faulty vehicle speed sensor, which is responsible for relaying speed data to the speedometer. If this sensor malfunctions, it can lead to inaccurate readings or a complete failure of the speedometer. Additionally, the speedometer gauge itself may be defective, requiring repair or replacement. Electrical issues, such as blown fuses or damaged wiring, can also disrupt the speedometer's operation. Furthermore, problems within the instrument cluster, where the speedometer is housed, can lead to malfunctions. Lastly, if the vehicle's computer system is not functioning correctly, it may fail to communicate speed data accurately. By identifying these potential issues, you can take the first steps toward diagnosing and resolving the speedometer problem in your Toyota 86.

How urgent is it to address a malfunctioning speedometer in a 2017 Toyota 86?

When it comes to a malfunctioning speedometer in your 2017 Toyota 86, the urgency to address the issue cannot be overstated. Ignoring this problem can lead to serious safety risks, as inaccurate speed readings may cause you to unknowingly exceed speed limits, increasing the likelihood of accidents. Additionally, driving with a faulty speedometer can have legal repercussions; if you are pulled over for speeding or involved in an accident, you may face penalties that could have been avoided. Beyond safety and legal concerns, a malfunctioning speedometer can indicate deeper mechanical issues that may compromise your vehicle's overall performance, potentially leading to more costly repairs down the line. Lastly, if you plan to sell your car in the future, a known speedometer issue can significantly diminish its resale value, as buyers are often wary of unresolved mechanical problems. Therefore, it is crucial to take immediate action to diagnose and repair a malfunctioning speedometer to ensure your safety, compliance with the law, and the longevity of your vehicle.

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2017 Toyota 86 Speedometer Issues & Repairs | RepairPal