I had this same problem after I had an emissions test. This was the first test that I had to have for my '04. I left the testing station and noticed that both VSC lights were illuminated. I thought that it was too much of a coincidence that this happend just after the test but couldn't imagine what the connection was. After reading this thread I downloaded the TSB, made a harness from some cat 5 cable and followed the instructions on the TSB, and after a few minutes the problem was solved. Many thanks to all of the contributors to this great site. I suspect that there will be a lot of '03 and '04 owners in Arizona who will run into this issue after their first emissions test. I'd complain to the state about this since some owners will go to the dealer and have to lay out money for a fix, but I don't think that it would do any good.