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What is the reason for the speedometer of Besturn B70 not moving?

2 Answers

AubreyLynn

07/24/25 6:04am

Here are the reasons and troubleshooting methods for the speedometer of Besturn B70 not moving: 1. Reasons: (1) The vehicle speed sensor or its driving mechanism is faulty. (2) The speedometer (speed indicator) is faulty. 2. Troubleshooting methods: There are two situations when the speedometer does not move. One is when it stays at 0, which usually indicates a broken or short-circuited display. The other situation is when it stays at the maximum point, commonly referred to as "pegging the needle," and it can be reset. If it stays at 0 and the mileage number also does not move, it is highly likely that there is an issue with the speed sensor, or there might be a problem with the wiring between the instrument and the sensor. In such cases, it is recommended to seek repair at a service center.

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MacFelix

08/11/25 1:49am

I've been driving the Besturn B70 for several years, and it's quite common to encounter a speedometer that stops working. Usually, it's due to a problem with the speed sensor. The sensor is installed near the wheels and can easily get clogged or damaged by dust or water, preventing the signal from reaching the dashboard. Another issue could be the dashboard itself, such as poor internal wiring connections that loosen over time due to aging—this requires opening it up to inspect. Short circuits or broken wires are also common, like when the wires connecting the sensor and the dashboard get crushed or chewed by rodents. In such cases, you should check if the fuse is blown—the fuse box is located in the engine compartment, and replacing it might solve the problem. Additionally, a malfunction in control modules like the ECU can cause this issue, or the speed might falsely read zero if the connector loosens due to vehicle vibrations. If you've changed tire sizes or have unstable tire pressure, the sensor calibration can get messed up, causing the speedometer to freeze. It's best to visit a repair shop quickly to diagnose the issue with a scanner—don't delay as it affects driving safety. Replacing a small sensor usually costs just a few dozen bucks. When washing your car, take care to protect the sensor, and during regular maintenance, remind them to check the wiring—it can save you a lot of hassle.

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