OBD-II will (at least in the US) largely replace OBD-I as emission control requirements and performance standards are introduced over the next few years. OBD-II is a more complex standard, with a number of improvements, but the increased complexity has meant a corresponding increase in the number of diagnostic codes and other information that need to be interpreted. This is a much greater challenge than in OBD-I, where emissions and diagnostic information were relatively simple. Additionally, OBD-II has many new sensors that measure many new things about the engine and emissions system. A major difference between OBD-I and OBD-II is that the OBD-II specification allows the OEMs to add more diagnostic codes to the standardized definitions of diagnostic codes. This has resulted in hundreds of new codes defined over the past decade. OBD-II is specified by the National Standards Organization (N.S.O.) and OBD-II diagnostic codes are defined in SAE J1850.
OBD-II plugs are color-coded to make it easier for technicians to identify the required plug for each individual vehicle. The OBD-II plug has a unique color and unique shape to distinguish it from other plugs. OBD-II plugs are shaped to allow them to enter the OBD-II connector, but not be installed backwards (itself a common mistake).
OBD-II, like OBD-I, has a physical connector (plug) that is installed on the vehicle's diagnostic connector on the OBDII connector (aka OBDII port). The OBD-II plug is typically mounted to the side of the vehicle's dashboard near the steering wheel. The diagnostic connector is typically located near the vehicle's fuel tank.
In the United States, OBD-II plugs are color-coded, and the color-coding identifies the sensor that the plug is designed to interface with. For example, if the plug is blue, it indicates that it is for the OBD-II emissions system. Plug connectors are not standardized. Plug connectors are not required to be polarized, and they are not required to be secured in any specific way. This means that OBD-II plugs of the same color may interface with a variety of sensors.
OBDLink® II is an enhanced version of the OBDLink® series of scan tools. OBDLink is one of the top selling OBDII diagnostic tools on Amazon.com. OBDLink II provides all the same features of the previous version, plus a USB port for additional peripherals. A license key for the latest OBDWiz diagnostic software is provided with the tool for updating to the most current software. Usb port is 4-8 pin male connection. Optional addition of the 9 pin male connection will speed data download. 827ec27edc