Hey friend,before we talk about best OBD2 auto scanner,we can learn about 5 tips. *What is OBD2 *Where is OBD2 port *What do Engine and Transmission work for *Cheap code reader VS high value scanner tool *Four best OBD2 auto scanner *What can we do for auto error codes P0171,P0101,P0420,P0300…? What is OBD2 ? OBD stands for On-Board Diagnostics. OBD-II (OBD two) is the latest industry standard, which was introduced on 1996 vehicle models. It provides monitoring of nearly all engine controls, and also some other parts of the vehicle (chassis, body, etc.). The most useful part of OBD to most drivers is the ability to read information from the vehicle. You can read trouble codes, and even monitor real-time statistics such as RPM, vehicle speed, etc. There are a variety of different devices on the market ranging from basic code scanners to advanced displays that calculate MPG as you drive. Where is the OBD2 port ? Free to look the picture below,so it’s depend on ...