no, it runs when the car does.
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 .
93 Nissan 300ZX P. Steering/odometerThe odometer stopped but the speedometer still works? I have to belive these are two different problems. There just shouldn't be any connection between the two. Treat it as such. Look at the power steering first. Is the belt intact and tight? Fluid full? Digital readout on odometer or mechanical? If mechanical, and the speedometer still works, then it is just the odometer that's bad. Direct connection speedometer to odometer, with no connection to the power steering as far as I know, and no reason for there to be. Even if digital, the power steering is simply a pump and some hoses with no need for anything electrical. There is no reason for the two to be connected.
Internal-combustion engine
A:is equal to the source
no power on the power windows switch
Convert the water flow into electricity. Please, no water in digital clocks that are plugged in.
i'd say power inverters, unless there are no cigarette lighters.....
Nikolaus August Otto
No, most tracking devices run on the battery and need it to function. Special tracking devices may have a separate power source such as internal battery.
An internal power supply is usually a battery. An external power supply means the electric current that you get by plugging your device into a wall outlet. If you do not have to plug it in, then it has its own power supply inside the actual device, in other words, it is internal. Aside from a battery, it could have photovoltaic cells to generate power, or other internal sources of power, anything other than an external source.
A good measure is its internal resistance. If the internal resistance was 1 ohm, the output voltage would fall by 1 volt for every amp of current taken. So - how low is the internal resistance? is a good question to find out how strong the source is.
The speedometer and odometer are electrically operated. There is no mechanical connection to the drivetrain. If there is no power, they don't work.