Thanks, texas! I just got back from reading the code. First time nothing, but it turned out I only had the key in the ON position (no idiot lights on). Second time around I put key in the second spot (all idiot lights on) and the LED blinked. First code is #7 and second code is...#17! What the-- I don't think I properly erased the first code after I read it because when I held the button down for 6-9 minutes, no light came on afterwards. I was able to clear both codes (assuming that I did read two codes). Is #7 code a serious problem? Thanks so much!

edit to add: Started the car and let it idle for over two minutes. The CEL did not come back on. Does this mean I'm out of the woods? Thanks.