【Turn Off Check Engine Light】The V850 check engine light code reader with reset function can scan various vehicles’ engine or powertrain modules to retrieve OBDII fault codes and view PID data from various sensors in text or 4 in 1 graph formats, including misfire, O2 sensor, long-term/short-term fuel trims, engine RPM/load/coolant temperature, mass air flow, throttle position, intake air temperature, open/closed-loop status, and help you determine why the Check Engine Light (CEL) is on, allowing you to turn off the MIL (Malfunction Indicator Light) 【One Click Smo G Check】 OBDII vehicle may not pass the annual inspection unless the required monitors since reset are complete. So you should at least read the readiness monitors and make sure they are ready. This car obd2 scanner diagnostic tool is equipped with I/M readiness function to check the operations of the e-m-issi0n system on OBD2 compliant vehicles, run I/M monitor readiness test, checking if the pass vehicle s-m-0-g inspection 【Our Advantage 】Our OBD2 Scanner Diagnostic Tool Unlike other cheap car diagnostic scanners, V850 OBDII code reader covers full OBDII/ EOBD diagnostic functions for engine system. O2 sensor test, EVAP systems test, and on-board monitoring test give you full control of your vehicle's running status, while a graphical and numeric live data stream display will help you to find out the faulty sensor readings. (Please be noticed: this function is for ENGINE System only) 【Compatility Easy To Use】ATDIAG V850 Compatible with 9 languages (English, French, Spanish, etc.)Works on most 1996 US-based, 2003 EU-Based and Asian (OBDII & CAN) domestic and imported vehicles, including passenger cars, SUVs, light trucks, etc. Supports all OBDII protocols.Simply plug into the OBD II port on your car, turn the ignition on and you are ready to go. No battery or complicated apps install needed [Home Necessity] This is an excellent code reader to travel or home with as it weighs less and it is compact in design. You can easily slide it in your backpack as you head to the garage, or put it on the dashboard, this will be a great fit for you. The V850 is not only portable, but also accurate and fast in performance. Moreover, it covers various car brands and is suitable for people who just need a code reader to check their car ASIN B0CNG7K91Y Brand Name ATDIAG Screen Size 2.8 Inches Manufacturer ATDIAG Power Source Corded Electric Item Type Name OBD2 Operating System Windows XP Included Components NO Manufacturer Warranty Description 3