ELM327 V1.5 Bluetooth Wireless OBD OBDII OBD2 EOBD Auto Car Truck Engine Diagnostic Interface Scanner DTC Trouble Fault Code Reader Scan Tool PC-based & Smartphone-based OBDII Diagnostic Scanner makes your computer & smart phone be a sophisticated diagnostic system. Supports most of the current OBD2 protocol, like ISO 15765-4 CAN, SAE J1850 PWA, SAE J1850 VPW, ISO 9141-2, ISO 14230-4 & SAE J1939. Reads diagnostic trouble codes including both generic & manufacturer-specific and displays their meaning (over 3000 generic code definitions in the database). Clears trouble codes and turn off the MIL ("Check Engine" light). Displays 15 kinds of 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, Fuel Pressure.