OBD2 Scan Tool
- OBD-II scan tools offer a variety of different features. They provide more access to or information about manufacturer-specific codes, provide extensive, customizable access to live and recorded data and offer advanced troubleshooting information. They view live and recorded data, provide extensive knowledge bases, provide access to bi-directional controls and tests, and other advanced functionality. They offer some basic functionality including the ability to read and clear codes. These scanners can also offer the ability to check pending, or soft, codes that haven’t activated the check engine light yet, and provide access to a wealth of information. Data from virtually every sensor that provides an input to the onboard computer can be viewed via an OBD-II scanner. Some scanners can set up custom lists of parameter IDs (PIDs). Some scanners provide access to readiness monitors and other information.