Functions: * Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database). * Clear trouble codes and turn off the MIL ("Check Engine" light) * Display 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 * Fuel Pressure ect. Bluetooth pair code is "0000","1234" or "6789". You should be note before you buy: 1. Be sure that your car support ELM327 2. This item now not support WIN7 and VISTA 64 bit operation system 3. If the light is flashing, but no information you receive, pls check if you install the item correctly. 4. If your use cell phone but not receive the information, pls contact us for technical support.