Ok I just did the troubleshoot and this is what it does:
2 long blinks, 2-3 sec. pause, 2 long blinks, 2-3 sec. pause, 2-3 sec. fast blinking.
I assume this is code 20

My ABS light also blinked:
2 long, 1 short
Code 21

What should I start looking at?

Thanks