How to pull codes and data?

I have one of those cheap $50 OBD-II tools but it doesn't read all the data from the rest of the computers in the Prius. My friend says the official toyota scan tool costs $10,000. But there are several on ebay in the $200 to $300 range that claim to do a lot of extra stuff if you search for "toyota scan". But I'm not sure if these will do what I need for diagnosing the Prius. Anyone have any experience on this? How is everyone else around here reading these codes?

 

Well, I didn't plan on driving it around that way. I just want to get the engine started so I can make sure everything else is working on this vehicle before spending a bunch of money on a battery.

Those refurb batteries seem kind of pricey to me considering you have to pay $1,475 for the new pack, then shipping, then more shipping to send your old pack to them. So that probably comes out to near $2,000 and if I understand correctly, I can get a brand-new pack from Toyota for around that price.

 

I've been looking at that scanner.. So it appears it is just a USB cable with some software for a PC. Price is $250 plus I would need the toyota update module for an extra $150. So that means it costs around $400. That's a little pricey, but it might be worth it. It seems cheaper than some of the alternatives I've seen. Have you had good luck with this, and does it work on all prius models, or just certain ones?

UPDATE - I just got an email from those people and they said this: "We have all three generations of the Prius supported today. However we have an issue with the Gen1 (your 02) model and the current release. The Hybrid systems are not working on all cars and we are working a trainer to resolve this (latest generation of our hardware being the issue). "