Earlier today, I paid my $787.00 membership dues to join the ETS Module Replacement Club. My car is a 1999 V70 GLT that has just over 100k on it and last Monday the ETS light came on for the first time. I checked for codes and found P1608 and P1615 indicating an internal fault with the ETS or ECM module. There were no other operational symptoms and the ETS light stayed out after I reset it. Based on all the ETS problems I've read about on this board and elsewhere, it would be reasonable to assume that it was only a matter of time until the ETS would fail. I figured it would be better to get the car to the dealer under its own power than wait until it died and have the extra expense of a towing bill. I intend to keep this car for quite awhile yet and now, a least, I feel I have removed a "time bomb" from it. The only good news is that my dealer was willing to match the FCP Groton price for the part ($485) and told me that they have never had to replace one a second time-the new ones are
supposedly better. I understand your reluctance to have a costly repair done if you don't need to but I think your ETS module could just be waiting to suprise you when you least expect it.