have you set the coms port up? is it serial or USB? USB requires a driver update which should be the software and serial needs to be set to a coms port to match the software setting, also note your car is CAN bus so you might need to tell the software that,
ELM327 is CAN bus savy so it should work its all down to settings.
quick edit: if its USB you can only set the coms port while the interface is connected to your computer because it wont see the tool where as serial sees it automatically but you still need to set matching coms ports with your computer and the software