Basic OBD readers only scratch the surface by pulling generic codes. Today’s...

https://wiki-triod.win/index.php/Why_Does_My_Check_Engine_Light_Keep_Coming_Back%3F_Stop_Clearing_Codes_and_Start_Fixing_Cars

Basic OBD readers only scratch the surface by pulling generic codes. Today’s vehicles rely on a complex network of ECUs that manage everything from your engine timing to door locks