TOPDON ArtiLink300 OBD2 Code Reader with Full OBD2 Functions, Read/Clear Codes to Turn off the Check Engine Light, Check I/M Readiness Status for Smog Test, Read VIN/Data Stream. TOPDON ArtiLink300 is a quick, affordable OBD2 code reader featuring all 10 modes of OBD2 test, DTC Lookup, plug-and-play function, and color display.