Bet this question has never appeared before! Need to purchase an OBD2 code reader that is compatible with iOS BlueTooth devices...particularly iPhones. For those who MAY not know, this is a small handheld electronic device that plugs into a vehicles' female receptacle of their cars' computer to diagnose problems in all auto systems & often located left of steering wheel under dash. So..if "check engine"(or any other) dash light is on, the OBD will diagnose it. If anyone uses this device, I would appreciate a brand name/model number recommendation. Most are under $100 at auto supply stores.Thanks to all who reply!