Here is another Bluetooth device that lets you find potential problems with your car. The AUTOPHIX 3210 Bluetooth OBD-II Car Diagnostic Scanner works with iOS and Android device. It can diagnose your check engine light and has a built-in fault code look-up library.
The AUTOPHIX 3210 also helps you check the health of your battery and voltage on your phone. It not only shows you fault codes but also their definitions and possible problems your vehicle may be having.