I think I saw a list on a wiki somewhere, but they were the generic codes and not necessarily specific to our vehicles.
Have you found that Torque works well with your Sentra?
I have one of those cheap bluetooth ELM327 adapters, and it works great with another car (07 Mazda) but not the one I wanted it for (01 Sentra XE). Most of the gauges and widgets say "not available" or "not supported by your ECU". Some of them (check monitor readiness, etc) will eventually go from "not supported" to suddenly showing data after waiting 5 minutes. Funny thing is, other apps work great (Car Gauge Pro, Scan Master LITE, etc) and some of those give me data that Torque doesn't. More specifically, whether the MIL is on or off (since my light actually burnt out!).
I've managed to get along without Torque, but it still kind of irks me that I can't get it to work. I'd like it to.