OBDII Reading Odometer

Hi,

i m new to OBDII. i m running ELMDuino. As per wiki PID for reading odometer is A6(HEX), but it returns no data. Is there any other way to pull the Odometer reading from the car?

Wiki Link :- OBD-II PIDs - Wikipedia

Not every car is returning every possible value! I think to remember the only mandatory things are reading out the error messages. Everything else is optional.

If you have a rather often bought car you might find the list of items returned online otherwise you have to try out yourself what values it returns. The older the car the less values is a general rule (of course there are exceptions from it).

Thanks for your answer.