DTC check

[krisco]

I remember reading it somewhere and I need it again and I can't remember. If you have a "CHECK ENGINE" light, you turn the key off and then turn it in the "ON" position, the light will blink 1,2,3 or 4 times to indicate the problem; a quick way of checking. I can't remember which component corresponds to how many blinks. I believe IAT is 2 and O2 is 3, but not sure. Oh yeah, after the sequence of lights blinks, the "CHECK ENGINE" light remains on. I've searched online for quite some time. Does anyone know what the blinks mean? Thanks in advance.
Kris

[delatlanta1281]

http://www.unofficialbmw.com/repair_faqs/motronic.html

There you go lil buddy!