Hi, you’re right about the number of failures. This same thing just happened to me Monday. My 06 Corolla has 51,000 miles. I had to take a day off of work and pay Pep Boys just to tell me they couldn’t read the code. I’m both angry and concerned–the car just shut down while I was driving. Could happen to other people and be very serious. Look for the same problem at the Toyota Nation forums; you’ll find a lot.
I am planning to call into the show to ask about this.