I am having the same problem with a 2003 ES300. From this thread, I will look at the brake light switch before going further. You mentioned that you used a computer to read the ABS codes - can you give some details as to how this is done. I thank you for your help.
Thanks.
I used a computer to read the ABS codes and, sure enough, it is the brake light switch ("stop light switch" on the computer read out). I called the dealer about the TSB. I was under the understanding that this is like a recall and would be repaired at no cost. I was told otherwise; the TSB just means that an improved part has replaced the original. Is that correct?