Engine Control Unit (ECU) 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. It also assists you in easily passing annual emissions tests and SMOG CHECK. It 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. Read Diagnostic Trouble Codes (DTCs) Displays fault code descriptions Clear Codes Reset check engine light View Live Data Check Emission Readiness Status Read Vehicle Information Plug and play scanner. High Quality and High Resolution TFT colorful display helps you easily to find out the troubles of your car. Bright color coded LEDs and built-in speaker provide both visual and audible tone for readiness verification. Brand New design Key pad, unique patented One-Click I/M Readiness Key, it is the best partner for your car repairing. Featured battery real-time monitoring during diagnostics, avoid un-expected happened. Integrated memory card allows storage of Trouble Codes, Live Data and freeze frame, Playback and review data when out of vehicles. Download app “Upgrade Tool General bluetooth” on Google Play & APP Store by phone It supports One key to share test report , Storage & Check test record on APP “Upgrade Tool General bluetooth”. I/M-key : One-Click I/M Readiness Key Quick-checks State Emissions readiness -drive cycle verification. DTC key : One-Click DTC - Diagnostic Trouble Codes (DTC) that identify which section of the emission. Download app “ Upgrade Tool General bluetooth” on Google Play & APP Store by phone . It supports One-key to share test report , Storage & Check test record on APP. Works on ALL OBD II Enabled vehicles, both Gasoline and Diesel cars - domestic and imported. Features the unique patented One-Click Readiness Key for quick State Emissions readiness check and drive cycle verification. Bright color coded LEDS indicators and built-in speaker provide both visual and audible tone for readiness verification. Retrieves generic (P0, P2, P3 and U0), manufacturer specific (P1, P3 and U1) codes and pending codes. Easily determines the cause of the Check Engine Light(MIL). Turns off Check Engine Light (MIL), clears codes and resets monitors. Enhanced OBD2 Mode 6 On Board Monitoring Test Results for Specific Monitored Systems. Views freeze frame data : OBD2 / EOBD / CAN Car Diagnostic Scanner supports all 10 OBDII test modes on all OBDII compliant vehicles for a complete diagnosis. Featuring the unique patented One-Click I/M Readiness Key, TFT color display and built-in speaker, Real Time Battery Voltage Monitoring, the KW818 is truly the ultimate in power and affordability, allowing users to do their jobs faster. In addition, thousands of troubleshooter code tips(by pressing ? button) help technicians and home DIY users to accurately diagnose even the toughest problems. With the newest friendly diagnostic interface, KW818 will be the most useful car diagnostic tool for every family and professional mechanic technician! Displays monitor and I/M readiness status (emissions). Reads live PCM datastream. Displays live O2 sensor test data. EVAP System test data. Live sensor data in text mode and graph mode (1996 and newer vehicles). Reads, stores and playbacks live sensor data. Troubleshooter code tips guide technicians to the root cause of a trouble code faster, saving diagnosis and repair time. Battery Voltage real time monitoring,better than other expensive item from others brand. Built-in DTC look-up library and display definition. Retrieves vehicle information (VIN, CIN and CVN)