Looking at the manual, I see no fuse that specifically relates to O2 sensors or emissions system.Tibby's advice suggests checking fuses to see iif they have blown and if they have, then check connectors for water ingress on the sensors throwing the codes. I would check there before going any further with the diagnosis.
Going to see if the schematics in the service manual show anything, but more likely a bad ground if the battery and connections are good. IMHO.
Don't forget, the above code information, though very good, is somewhat generic.