2004 Audi TT 3.2 TTR OBDII port will not communicate

I have a 2004 Audi TT 3.2 Roadster. The OBDII port cannot communicate with any scanner. All fuses have been checked and appear to be fine. There is power to the OBDII port, but no communications and again, 5 scanners have the same problem, so it's not a scanner issue.
I've read that there are problems with the K line and modules connected along that line. No idea if there's occurring or not. I did have 2 check engine lights on, but I don't think they're directly related, as OBDII worked fine for some time while the CEL was on.
One mechanic I know wants to try and refresh the ECU. Another says he doubts it's ECU-related.
Any thoughts or suggestions would be appreciated.
Good Luck
Gary
2000 225 Quattro Coupe
I have a 2004 Audi TT 3.2 Roadster. The OBDII port cannot communicate with any scanner. All fuses have been checked and appear to be fine. There is power to the OBDII port, but no communications and again, 5 scanners have the same problem, so it's not a scanner issue.
I've read that there are problems with the K line and modules connected along that line. No idea if there's occurring or not. I did have 2 check engine lights on, but I don't think they're directly related, as OBDII worked fine for some time while the CEL was on.
One mechanic I know wants to try and refresh the ECU. Another says he doubts it's ECU-related.
Any thoughts or suggestions would be appreciated.



