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Thank you for question.
It we understand correctly, you are asking if FMB001 device can read OBD-CAN bus data. Are we right?
If yes, it depends from which protocols your vehicles support. In this situation we can recommend to check if vehicle is available to send any OBD parameters. How to do it you can find here: https://wiki.teltonika.lt/view/How_to_check_available_OBDII_data%3F
Please let us know if we misunderstand your question or you will have questions for us.