User Guide
1 - Buy your OBD2 Bluetooth device
Buy your OBD2 bluetooth diagnostic tool (available for less than 10 $)
![](https://www.cardiag.me/wp-content/uploads/2023/03/obd2-mini-bluetooth-600x600.png)
2 - Install the CarDiag mobile app
Install the CarDiag mobile application From the Google Play Store
![](https://www.cardiag.me/wp-content/uploads/2022/02/App-En-1-e1646015773150-600x600.png)
3 - Plug your device to your car
Find the diagnostic port on which your device must be connected: https://wikiobd.co.uk
Plug your CarDiag device into Car’s diagnostic port, then turn your ignition on
![](https://www.cardiag.me/wp-content/uploads/2022/06/cardiag-obd-port-600x600.jpg)
4 - Connect your phone to the device
On your Android Smartphone, go to:
- Settings > Bluetooth
- Connect to Bluetooth signal OBDII
- Enter the following code : 1234 (or 0000)
![](https://www.cardiag.me/wp-content/uploads/2023/03/obd-bluetooth-pin.png)
5 - Launch your car diagnostic
You can now open your CarDiag mobile application, and launch a diagnosic to easily check your vehicle’s health (breakdowns, component wear, CO2 emissions, etc.).