Product Specifications: ELM327 Bluetooth CAN-BUS scan tool, It supports all OBD-II protocols.It is used to read diagnose trouble codes, clear trouble codes and detect fuel pressure and so on. Newly developed bluetooth ELM327, support all OBD-II protocols as follows: ISO15765-4 ( CAN) ISO14230-4 ( KWP2000) ISO9141-2 J1850 VPW J1850 PWM