ER1684B Reads and displays diagnostic trouble codes including generic and manufacturer-specific (over 3000 generic code definitions in the database) Clears trouble codes and turns off the MIL (“Check Engine” light) Displays current sensor data including engine RPM， calculated load value， coolant temperature， fuel system status， vehicle speed， short term fuel trim， long term fuel trim， intake manifold pressure， timing advance， intake air temperature， air flow rate， absolute throttle position， oxygen sensor voltages/associated short term fuel trims， fuel system status and fuel pressure Works with all OBD-II compliant vehicles Easy to install and uninstall Processer: ELM 327 Bluetooth OBD-II protocols supported: ISO15765-4 (CAN)， ISO14230-4 (KWP2000)， ISO9141-2， J1850 VPW， J1850 PWM Output interface protocol: Serial RS232 Baud rate: 9600/38400 LED light: OBD output/input， RS232 output/input， power supply Operating voltage: 12v， built-in short circuit and overvoltage protection circuit General idle current: 45mA Systems supported: DOS/Windows Vehicle supported: BMW， SEAT， Ford， MINI， Jaguar， Benz， Volkswagen， Daimlerchrysler， Dodge， Acura， Suzuki， Honda， Toyota， Mazda， Mitsu， Nissan， Subaru， Landrover， Chevrolet， Skoda， Infiniti， KIA， Hyundai， Audi， Saab， Opel， Citroen， Peugeot， VOLVO and Fiat