i found this after doing a search on you-tube,

https://www.youtube.com/watch?v=p5R-cBB6BQ0


thanks to the person who posted it ;)

the 1st part of the video is for the ford focus,then he shows how to carryout the test on the s max,
i done this today on my own,as i have only owned my car for less then a week i thought id give it a go,and very handy it is too,
as this will give you info on whether your cars ecu has logged any faults.
thankfully mine hasnt so happy days.

so as this is a built in diagnostic tool,im assuming it means we will not have to faff about with a code reader and laptop, Grin