You are trying to connect with the vehicle and get the message "Can't access Bluetooth devices":

The message appears because the app is asking for the location permission (From Android M Google pushing the developers to request location permission to access Bluetooth devices.
You will find more information about that by pressing the following link: ).

To solve that follow the instructions (The settings menu could be different on your Android, it depends on the version):

  • Search for the "Apps" in your mobile settings.

  • Search for the "OBDeleven" app in the list and select it.

  • In "OBDeleven" app settings select the "Permissions".

  • Turn ON the location permission. After that the message "Can't access Bluetooth devices" will disappear.