This app is the most complete offline OBD2 diagnostic trouble code definitions database. It contains more than 18500 error descriptions. It is the most full database in market. Very simple to use! You don't even have to select your car model. Just enter your fault code and app will show you all supported descriptions.
The download of the app is safe and secure. Nom is the official developer of OBDII Trouble Codes that can be found in the Auto & Vehicles category. The overall rating for the tool is 4 on Google Play.