IT the back of the speed cluster the spring is war out GO to the junkyard easy fiX
If the speedo stops also, it is the speed sensor. If just the odometer, take it to a speedo shop.
The gauge has failed.
If the speedo works and not the odometer, take it to the speedo shop as something is wrong in the speedo itself. You can't stop the odometer without stopping the speedo.
The logical problem - would be a broken speedo cable. The speedo & odometer are both run from the same cable.
Replace the speedo head assembly. It is a sealed unit, with no servicable parts. If the speedometer is working, then the cable and the speedo drive gears are working. The failure must be inside of the speedo head assembly itself.
If only the odometer is not functional, then the cluster is bad. If both odo and speedo are inop then you have a possible speed sensor issue.
If the speedo il ok but the odometer doesn't work, take it to a speedo shop as the problem is in the speedo.
There is no such thing as an "odometer sensor." There is a vehicle speed sensor that is located on the output shaft housing of the transmission. That sends info to the speedometer. From there, the speedometer and the odometer are both operated internally, so if your speedo is working, but the odometer isn't, you have a problem inside the speedo head assembly.
Hey Tony==Either manual or electric spedo if this happens the problem in in the speedo and needs to go to the speedo shop. GoodluckJoe
The odometer unit has failed and will need replaced.
If the speedo works and the odometer doesn't, it neeeds to go to the speedo shop as the problem is inside the spedo. GoodluckJoe
Disconnecting the speed sensor stops the speedo and odometer. The odometer has to be changed by a certified speedo repair shop.