1. Check the speedometer cable. The speedometer cable is responsible for transmitting the rotation of the wheels to the speedometer head. If the cable is damaged or disconnected, the speedometer will not work. Inspect the cable for any signs of damage, such as kinks or breaks. If the cable is damaged, it will need to be replaced.
2. Check the speedometer head. The speedometer head is responsible for converting the rotation of the speedometer cable into a speed reading. If the speedometer head is damaged, the speedometer will not work. Inspect the speedometer head for any signs of damage, such as cracks or broken gears. If the speedometer head is damaged, it will need to be replaced.
3. Check the vehicle speed sensor. The vehicle speed sensor is responsible for sending a signal to the speedometer head. If the vehicle speed sensor is damaged, the speedometer will not work. Inspect the vehicle speed sensor for any signs of damage, such as corrosion or broken wires. If the vehicle speed sensor is damaged, it will need to be replaced.
4. Test the speedometer. Once you have replaced the speedometer cable, speedometer head, or vehicle speed sensor, test the speedometer to make sure it is working properly. Drive the vehicle at different speeds and make sure the speedometer is accurately displaying the speed.
If you are not comfortable performing these repairs yourself, you can take your vehicle to a qualified mechanic to have them repaired.
