What do you mean? Its been a while since I've played this game. Are you talking about cheat codes that are entered via the phone?
I'm very confused, but from what I can tell. Your asking for the GTA 4 Phone, which unless I'm mistaken is included. Just open it up with the D-Pad.
Can i do the cheats on the phone without LIVE ? thats the question and theres a Co op On the game ? not live , just with two controllers
Ahh, yes you can do cheats on single player. I Don't think you can on multi-player but I believe theres is co-op. However I'm not to sure on that...