OBD port not working?

Does the fuse have power, key on?

This guide can help:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

You might have a connection problem to the data port, also make sure the connector is not corroded, which happens.

Here is a video on the problem as well:

https://www.youtube.com/watch?v=6Tlg3JmgNSQ&t

The fuse for the OBD port gets its power from the ALT fuse 100 amp FYI. Let me know what you find.