I have a 2000 XC70SE, I have put about 5000 miles on it since I purchased it. Most of that time the ETS light has been on. The Warranty upgrade was done in 2007 and it appears that the ETM has been replaced, as it is a yellow tag unit. I am having no drive ability issues, runs well in town, on the highway,and no idle hunting. I am getting no codes with an obdi2 scanner. Don't really want to just replace ETM but am planning a long trip and need to resolve before that. I have taken a 1400 mile trip in it with ETS on the whole time and no issues.. Any ideas ??