OBD ELM327 V1.5 USB Car Fault Diagnostic Scanner with CH340T Chip Function 1. Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database). 2. Clear trouble codes and turn off the MIL (Check Engine light) 3. Display current sensor data 4. Engine RPM 5. Calculated Load Value 6. Coolant Temperature 7. Fuel System Status 8. Vehicle Speed 9. Short Term Fuel Trim 10. Long Term Fuel Trim 11. Intake Manifold Pressure 12. Timing Advance 13. Intake Air Temperature 14. Air Flow Rate 15. Absolute Throttle Position 16. Oxygen sensor voltages associated short term fuel trims 17. Fuel System status 18. Fuel Pressure Specification 1. Communication: USB Interface 2. Master Chip: ST 3. Driver IC: PL2303 4. Support System: Windows 5. Working Voltage: 9v ~ 16v 6. Working Current: 15mA 7. Standby Current: 0mA 8. Operating temperature: -40 ~ 85 degree Celsius 9. Working Humidity: less than 60% 10. Compatible systems: Software support platform: Windows XP, Windows 78. 11. Compatible software: Window: ScanMaster-ELM, ScanTool.net, PCMSCAN ELM, etc. 12. Size: 45mm x 25mm x 75mm 13. Cable Length: 1.5m Supported Protocol 1. SAE J1850 PWM (41.6Kbaud) 2. SAE J1850 VPW (10.4Kbaud) 3. ISO9141-2 (5 baud init, 10.4 Kbaud) 4. ISO14230-4 KWP (5 baud init, 10.4 Kbaud) 5. ISO14230-4 KWP (fast init, 10.4 Kbaud) 6. ISO15765-4 CAN (11bit ID, 500 Kbaud) 7. ISO15765-4 CAN (29bit ID, 500 Kbaud) 8. ISO15765-4 CAN (11bit ID, 250 Kbaud) 9. ISO15765-4 CAN (29bit ID, 250 Kbaud)