OBD II CHECK ENGINE LIGHT DIAGNOSTIC TOOL Keep your car on the GO!! (Does NOT work on Trucks or Diesel)(96 and newer cars only) Brand New Supports IOS and Android! IOS Instructions:Install a Free App (Auto Doctor) onto your IOS device.Install the sensor into the OBDII port.Start your car.Open the app and click on 'Extras' on the bottom right.Under 'Connectivity' click 'Bluetooth' and below that click 'Device' and change to 'Viecar BLE'Turn on Auto-connect after launchClick 'Status' on bottom left.Click the interlocking chains on top right to connect to the adapter. ANDROID Instructions: Install a Free App (Torque Lite) onto your ANDROID device.Install the sensor into the OBDII port.Start your car. Open settings on phone and turn on 'Bluetooth' and click 'BAST' device. (password 0000)Open Free App Click Menu and under Settings go to OBDII Adapter and choose OBDII device OBD Fusion Paid App for Android and IOS ($10) Partnered with B.A.S.T. Products. Settings: Preferences: Connection: Make sure you have connection type on Bluetooth LE *If you do not see BAST as a supported device, open Settings > Preferences > Communications > Press Menu > Update Bluetooth LE Devices. This will add the BAST adapter.