KW590 is a reliable upgrade from basic auto code scanner tools, designed to diagnose vehicle engine systems. After starting the ignition, plug the device into your vehicle's 16-pin OBDII DLC to begin diagnostics for the engine system, oxygen sensor, evaporative control system, and more. Identify potential issues and take appropriate action.Compatible with all 1996 and later OBDII-compliant US, European, and Asian vehicles Quickly identifies the cause of the Check Engine Light (MIL) Retrieves generic (P0, P2, P3, U0) and manufacturer-specific (P1, P3, U1) diagnostic trouble codes Turns off the Check Engine Light (MIL), clears codes, and resets monitors Displays DTC definitions directly on the screen Views freeze frame data Shows monitor and I/M readiness status for emissions testing Detects pending codes Reads live PCM data stream Displays real-time O2 sensor test data Graphs data for vehicles from 1996 and newer Reads, stores, and plays back live sensor data Includes memory and battery backup for off-vehicle data review and analysis Supports six languages: English, French, German, Dutch, Spanish, and Russian Performs module presence test Retrieves vehicle information including VIN, CIN, and CVN Supports CAN (Controller Area Network) and all other current OBD-II protocols Built-in OBD-II DTC lookup library Features a large, easy-to-read backlit LCD screen Software is upgradeable via the internet Enables data printing through PC connection