Review on 🚗 TOPDON AL400 OBD2 Scanner: Check Engine Light Scan Tool with O2 Sensor, Freeze Frame, I/M Readiness, and DTC Lookup - Ultimate Diagnostic Scanner for All OBDII Cars by Michael Robertson

Much more than a standard cheap code reader, but for the same price! This tool can do something that tools twice the price cannot. The images are from a scan of a 2019 Honda Civic. Of course, the tool will read and clear the codes. But it also shows your readiness status, meaning you'll know if the car is ready to pass an emissions test. I was amazed at the data I was able to read with this tool! Coolant temperature, throttle position, engine load, engine RPM, vehicle speed, system voltage, and mileage since the Check Engine light was last illuminated. passenger seat or climb out the window and under the hood. Very handy if you want to keep an eye on data while someone else is driving or while you're working under the hood. It is very nice when the tool is connected to the car under the dashboard. Topdon has provided a small flashlight to help you find the vehicle's diagnostic connector even in the dark.