2. Check the odometer sensor. The odometer sensor is a small device that is located on the transmission. The sensor sends a signal to the odometer that tells it how fast the vehicle is traveling. If the sensor is damaged or disconnected, the odometer will not work. To check the sensor, disconnect it from the transmission and see if the odometer starts working. If the odometer starts working, the sensor is bad and needs to be replaced.
3. Check the odometer gear. The odometer gear is a small gear that is located inside the transmission. The gear turns when the vehicle is moving, and it drives the odometer. If the gear is damaged or stripped, the odometer will not work. To check the gear, remove the transmission pan and inspect the gear. If the gear is damaged, it needs to be replaced.
4. Replace the odometer. If you have tried all of the above and the odometer still does not work, you may need to replace the odometer. The odometer is a relatively inexpensive part, and it is easy to replace. You can find instructions for replacing the odometer in your vehicle's repair manual.
