8. Library Tap “Library” on the Home Menu. The following page will appear: 8.1 OBD Fault Code Library: To view the definition of DTCs (Diagnostic Trouble Codes). 8.2 Coverage List: To view the supported functions and car systems after selecting the vehicle make, model, year, and inputting information required on the following page: 8.3 Learning Materials: To view the playback of operating functions on specific vehicle models. 34 8.4 Chrome: chrome browser.