Volvo have used this system for years and now Ford are running volvo gear i'm sure it's 99.9% the same system.
from my years as a volvo grease monkey they Fooked up all the time
They have also been on watch dog because they keep going into
limp home mode!!!! (won't go past 25 mph) not good if your
on the motorway.
The problem with the Volvo system was down to software.
a new ecu upgrage used to sort it in no time.
I wonder if and new ST's are going to have the same problem?