I have a 2002 WRX and tried to follow these instructions for ECU reset
http://www.msu.edu/~briggsj7/WrxECUClearing.html
I found the two green plugs match only, but one black and one transparent plug which don't match (they are not male and female).
Is just disconnesting the battery resetting the ECU too? (could not find a clear "search" answer)
Thanks,
Blitzer