Mini Bluetooth OBD2 V2.2 Scanner for Android read and clear check engine light access 3000+ generic and manufacturer specific trouble codes Built in LED light for easy connection in dark areas compact design fits most OBDII 16 pin DLC ports under dash Supports multiple protocols SAE J1850 PWM VPW ISO 9141 2 KWP2000 CAN BUS and SAE J1939 for wide vehicle compatibility Displays real time live data engine RPM coolant temp speed fuel trim intake pressure O2 sensor voltage and more Works with most OBDII compliant cars minivans and light trucks ideal for DIY diagnostics and engine performance monitoring Plug and play no battery needed powered directly via OBDII port.