Volvo finally recall cars over the ETM issue

Looks like volvo have finally recalled the cars, but this looks like only in USA

In the UK it has been a low key affair even with all the coverage on Watchdog and the motoring press. I contacted Volvo UK about this at the beginning of the year when all the rumblings had started Stateside. I was told they were working on a solution in the UK and took my details to let me know when it would happen. A couple of months ago I did get a letter from Volvo UK asking me to arrange a visit to my local dealer. Luckily my car was aleady booked in for a service and when they checked the VIN it would seem my year 2000 built S60 predates the models that were affected.

Would someone be kind enough to explain what an ETM is and why it's such a big problem to fix. What sort of percentage of cars are affected and is it petrol engines only?

Hi Oli Forgive my ignorance - I don't know one end of an Etm from the other!! :-) Does the ETM control the Throttle Body and its the software that is the problem, or is the Throttle Body a separate item altogether and my problem is a different one? I suppose I really should get to know what I'm talking about before I go on Wednesday morning! Thanks in advance Alan