I have an MY09 2.5i wagon (also)
I use the 2004 Gen 4 manual for most things.
It is posted here on this forum.
viewtopic.php?f=12&t=4686I also use an MY09 USDM manual for the Variable Valve Lift Engine details.
Both cover most everything that is needed.
I can locate reference to Bank 2 Sensor 2 in the H6 section of the 2009 FSM
Is not this the Rear Oxygen sensor on the outlet of the LHS Cat?