E53_ped

Hi all new here great little forum. I have a issue with my 2003 x5 my odb port doesn't seem to be working 100% i have tried a couple of scanners all will power up and get power from port but refuse to connect or read anything . I have a Bluetooth adaptors too same issue. tried the fuses in glovebox all good there . Also tried scanners on father's x5 no issues Any help would be great