Mandy Concepcion has worked in the electronics engineering and automotive field for over 35 years. He holds a Bachelor's Degree Electronics Engineering, C & Python Programming, as well as an ASE A2, A6, A8 & L1 certification. For the past 29 years he has been exclusively involved in the diagnosis of all the different electronic systems found in today's vehicles. It is here where he draws extensive practical knowledge from his experience and hopes to convey it in this book. He's also actively engaged in developing automotive diagnostic equipment and components. In many ways his circuits are creations do not exists anywhere else, so creating new things is in his DNA. Many of his creative ideas are meant to help extend the life or usability of running vehicles. Others are meant to boost systems usability. The software seen in his created circuits are developed by him, so use them safely, enjoy.