title: Reading VIN number via OBD-II (from Citroen, Peugeot, Fiat)
body: <p>I built a simple Android app that reads in basic car parameters via OBD-II like VIN number and battery voltage. It work nice but I have problems retrieving VIN number from non-German/non-American cars. So for instance in case of Citroen or Fiat one cannot get the VIN number and the returned value is either NULL or UNKNOWN.</p>
  <p>Any idea how to solve it?
  I use the command 09 02 (elm327).</p>