The year, make, model and what's wrong with it info would help.
The repair for an odometer on the 1999 Nissan Sentra SE varies depending on the type of damage. You might repair the odometer by simply replacing the fuse for this part. You might also repair the odometer by replacing the cables.
It is non-servicable, so repair requires replacement of the speedometer/odometer assembly.
most odometer will need be repair by expert who cal odometer or replace the total meter
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Check the website for IPD. There are many positive reviews for their odometer repair kit.http://www.ipdusa.com/Volvo-200/Interior/Odometer-Repair-Kit/p-69-262-4566/Juan
Probably the cheap black plastic odometer gears(2) if you have set in center. If you have odometer on the left and trip odometer on the right then it is two sets...four gears. Usually when one breaks the other is not far behind in the two set type. There are several online suppliers who can provide parts for the repair.
odom in/out:12800
There is a tiny gear in the odometer itself which is plastic and only lasts about ten years or less.
It is not clear from your question whether the odometer is mechanical or digital. If it is digital, this is likely the beginning symptoms of a cracked solder joint on the circuit board that provides power and mileage information to the odometer display. See the discussion of the problem and options for repair at http://www.odometer-repair.com .
To repair the odometer on a 1988 Dodge Dynasty, first, remove the instrument cluster from the dashboard by unscrewing it and disconnecting the wiring harness. Inspect the odometer gears for any signs of wear or damage, as they are often the cause of malfunction. If the gears are broken, they can be replaced with new ones. Reassemble the cluster and reconnect it to ensure that the odometer is functioning properly.
More than likely, it sounds like your odometer cable has been disconnected or is failing. A new odometer cable can be picked up at any auto parts seller.
Disconnecting the speed sensor stops the speedo and odometer. The odometer has to be changed by a certified speedo repair shop.