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why a speedometer that doesn't work and how to fix
If the speedometer of the car does not rotate, it will directly affect our use. At this time, we must not be careless, and we must repair and check it in time, otherwise it may cause greater impact and loss. There may be a problem with the car's sensors, a problem with the drive unit, or a malfunction in the speedometer.
1. If the sensor of the car is damaged, it will cause the speedometer of the car to malfunction. At this time, we can choose to go to the repair shop or 4S shop for repairs to see if there is really a fault. If so, we must promptly repair it. Carry out repairs, if not, look for other parts to see if there is a problem.
2. If the car sensor does not fail, then there may be a problem with the drive device of the car sensor. If there is a circuit problem or poor contact in the drive device, then the speedometer will not move, so check the circuit problem carefully.
3. If the speedometer itself of the car is damaged, it will definitely cause the speedometer to fail to rotate. At this time, we need to check the circuit problem of the speedometer and see if there is a short circuit. If there is, we must find professional staff when we have no way to repair it by ourselves. There are certain risks and disadvantages in self-repair. The speedometer will reflect the current speed of the vehicle. If there is a problem, it will directly affect the driver's use. There is no clear understanding of the driving speed, so if there is a problem, it must be solved in time.
Reasons and solutions for car speedometer not moving:
1. Faults with the vehicle speed sensor and sensor drive mechanism;
2. Speedometer failure (speedometer) failure;
3. The line speed or mechanism of the connection between the sensor and the speedometer is faulty;
4. Higher gear vehicles may be related to the vehicle travel computer. For the vehicle model, a diagnostic instrument can be used for detection, and the fault point can be easily judged.
The dashboard is just a circuit board.It is really difficult to repair, just like the components on the computer motherboard are broken.There is no other way except to replace. You have to check whether there is any iron on the line from the sensor to the dashboard in the car Or a short circuit, you can't just listen to 4s, he said that if the sensor is not broken, it is not broken. A sensor with tens of thousands, and a watch with several tens of thousands of people will get a commission for repairing it. Do you understand! Go to another repair shop to see it.Speedometer aka odometer, there are two situations that can cause this problem. The first is that the odometer sensor is faulty, and the second is that the instrument pointer is faulty. Generally speaking, the probability of the latter having a problem is very small and can basically be ruled out. It is recommended that the owner go to the maintenance department to have the maintenance personnel check the odometer sensor and replace it. The sensor is located on the gearbox housing. If the replacement of the sensor fails to solve the problem, then consider the failure of the instrument.
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