Hi, I have a 1989 240 sedan, and the check engine light is on. I checked for codes and got: 1 1 1 when I pressed the button once, and then I pressed it 2X and the light started this rapid flashing that wouldn't stop until I pressed the button again. I then pressed it 3X and got 1 1 1. I repeated the sequence and received the same. Does the rapid flashing mean something?