Has anyone this feature in his car?

The problem is that I recently change my front seats with a pair of new ones that came along with this function. After I connect the plugs under the seats all the electrical adjustments work fine but the lumbar support didnít work.
Under the seat I found two plugs one for the electric adjustments and another one smaller. I tried to give external power to the small plug to see if anything will happen but the lumbar support function didnít work.

Any ideas ?