For your message:
For your vehicle to be OBDII compliant it must have a 16-pin DLC (Data Link Connector) under the dash and the Vehicle Emission Control Information Label must state that the vehicle is OBDII compliant.
Please turn on your car when connecting, or the App cannot connect successfully.

Functions:
1.Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database).
2.Clear error codes and turn off the MIL (‘Check Engine’ light)
3.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, etc.

Multi-Protocol Support:
ISO9141-2(5 baud init,10.4Kbaud)
ISO14230-4 KWP(5 baud init,10.4 Kbaud)
ISO14230-4 KWP(fast init,10.4 Kbaud)
ISO15765-4 CAN(11bit ID,500 Kbaud)
ISO15765-4 CAN(29bit ID,500 Kbaud)
ISO15765-4 CAN(11bit ID,250 Kbaud)
ISO15765-4 CAN(29bit ID,250 Kbaud)
SAE J1939 CAN(29bit ID,250*Kbaud)
USER1 CAN(11*bit ID,125*Kbaud)
USER2 CAN(11*bit ID,50*kbaud)

Note:
Doesn’t work with 1995 Ford Ranger, 2000 Sarum, 2000 Honda Civic, 2001 Altima, 2002 Dodge Neon, 2002 Acura, 2003 GMC, 2003 Ford,2005 Toyota Vitz, Renault clio 2005

Product Features

• OBD II SCANNING: Diagnose trouble codes for 1996 or newer cars and light trucks sold in the United States, including all American, European, and Asian vehicles. Supports OBD-II protocols: CAN, KWP2000, ISO9141-2, J1850 VPW and J1850 PWM (May not support Hybrid or electric vehicles).
• SMART SCANNING: Our OBD2 can 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 lights, Timing advance, Intake Air Temperature, Air Flow Rate, Absolute Throttle Position, Oxygen sensor voltages/associated short term fuel trims, Fuel System status, Fuel Pressure.
• VERSATILE COMPATIBILITY: Support iOS (iPhone6 6plus 5s 5c iPad Air Mini 4) & Android (Samsung S5 S4 Note 3 Note 2.LG 2 Google Nexus) & Windows. Recommend free “OBD Car Doctor ” App for iOS system (“DashCommand” App for iOS is $9.9.); Support free “DashCommand” , “Torque Pro” App for Android device.
• EASY OPERATION: Download and install the APP, start the car engine, plug the OBDii adapter into your car’s OBD2 port, enable WIFI on your phone, search for “WIFI_OBDII”, run the App and connect it, then you could check the fault code.
• WHAT YOU GET: High quality product. Any question, please contact us, we will response you within 24 hours. 6-month hassle-free replacement warranty and easy to reach, friendly customer services.