bluetooth ELM327 is the newly developed wireless scan tool. It supports all OBD-II protocols Works with all OBD-II compliant vehicles Wireless (Bluetooth) Software included for Palm, PDA Software included for Windows PC Software included for Windows Smartphone Supports ISO 9141, KWP2000 Supports CAN bus 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 Many others... 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)