Tried OBD Auto Doctor software and TOAD-Scan. Later is preferred and works perfect. Both have excellent clean and intuitive GUI. I used it on my daughters car it found the problem I bought the part, cleared the code and she passed her inspection. Not only did I save $120 diagnostic fee but also the $50 which dealership incurs to reset the codes. Well worth the money, my dad is ordering one to have in his workshop garage.