Not sure where you are from but if you check in the "Canada" forums there are LOTS of us who have our pumps blow every winter... That "re-flash" does sweet F%@$ all... they need to run thinner oil.Sorry if this has already been covered.
So I recently got a warning light for my SWAC system on the car and went the a friend that works for mitsu, the light was for code C161E. He told me mitsu send out a reflash that is supposed to fix this problem. He said it was a cold weather issue where the pump has issues with viscosity and the flash is supposed to help with this issue. I didn't get my first light till around 40k km and I like spirited driving in the winter, -5C to -30C.
I'm told this is a "general" warranty item so I'm SOL but I figured I should share.
On a side note, I see a recall in mitsus' future.
Obviously this is only relevant to people in cold climates.