have a look on the search section for OBDII readers i think there is a thread where people who have one and there location. if you ask nicely i'm sure some one will read it for you.
you may find that the OBDII reader they were using maynot be compatible with the 350Z, i'm sure some readers which are suitable for VAG engines can't read jap codes.
i may be wrong.
as said above the engine reset procedure will tell you, just takes a little practice to get right, and a little more knack to single out the different sequences of flashes. the pause between flash groups for each number isn't always as long as you think. also the number code repeats over and over again until you do the last section of the reset.