Upgraded Vehicle Diagnoses Doctor : YA-101 is an upgraded version of basic OBD2 scanners, fully supporting all 10 OBD2 modes. It includes reading and erasing current trouble codes, O2 Sensor Tests, On-Board Monitor Test (Mode 6), EVAP System Test (Mode 8), I/M Readiness check, Vehicle Information retrieval, and more—helping you easily pass the smog check.
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