ELM327 Bluetooth Mini OBD2 Car Diagnostic Diagnostic Device 1. Support all OBD2 self-diagnostic system and its compatible communication protocol detection 2. Through the link with the car, you can reflect the car's data to mobile devices such as cell phones and computers via Bluetooth, it is a very powerful and easy to use diagnostic device 3. Reads GM and automaker-specific diagnostic trouble codes and displays their definitions (the software contains more than 3,000 trouble codes) 4. Clears trouble codes and turns off the engine (engine) malfunction warning light 5. Take the engine instant dynamic data stream: engine speed, calculated load value, coolant temperature, fuel system status, vehicle speed, short-term fuel correction, long-term fuel correction, intake manifold pressure, timing advance, intake air temperature, air flow, throttle opening, oxygen sensor voltageshort-term fuel trim, fuel pressure, etc 6. Support OBD2 protocol as follows 1. SAE J1850 PWM(41.6Kbaud) 2. SAE J1850 VPW(10.4Kbaud) 3. ISO9141-2(5 baud init,10.4Kbaud) 4. ISO14230-4 KWP(5 baud init,10.4 Kbaud) 5. ISO14230-4 KWP(fast init,10.4 Kbaud) 6. ISO15765-4 CAN (11bit ID, 500 Kbaud) 7. ISO15765-4 CAN(29bit ID,500 Kbaud) 8. ISO15765-4 CAN(11bit ID,250 Kbaud) 9. ISO15765-4 CAN(29bit ID,250 Kbaud) A. SAE J1939 CAN(29bit ID,250 Kbaud) B. USER1 CAN(11bit ID,125 Kbaud) C. USER2 CAN(11bit ID,50 kbaud)