No, mine reads camshaft position sensor, not camshaft reset valve, I don't remember exact code value.

It may be the same, just different wording on different code reader, who knows.
If light was off, it may come after 2-3 minutes of driving and will stay for 3-4 days coming right at the start. After that it will stay off for 3-4 day and this goes over and over.

It started in the fall, but I don't belive this is a temperature related, because it's relatively warm here this winter.

I am the original car owner since 1999 and changing oil about every 4-5K miles, at least twice a year, more frequent than volvo is manual is asking (7.5K miles). Replacing filter as well.

But I am driving only about 6K year - car has only 42K miles on it and completely falling appart.

I can live with this problem, but next year I have to pass state emission check that now is a simple ODBII code reader.
If light is on - you failed automatically.