Review on CGSULIT OBD2 Scanner Car Code Reader, SC301: Comprehensive Diagnostic Scan Tool for Check Engine Light, Emission Analysis, O2 Sensor Test, Smog Check - Car Health Monitor and Repair Tool (Black) by Robby Fingaw

I tested it on 2007 Lexus Es350 and 2010 Nissan 370z and it worked fine. was green, but other scanners show yellow for that matter. and in California, the smog check fails when a persistent error code is present. It must be driven 200 kilometers and the car must have more than 15 hot starts. and another scanner like Foxwell will check it and then show a green light until it turns orange. This device is exactly the same as FOXWELL NT301, even the number looks the same as SC301, but half price I got it for $31 back then.