Using Pin_Sleep in Xbee S2C

Hi people,

I have a electronic with Xbee S2C, in determined moment, I no need use my Xbee (and its internal processor), for this I want use Pin_Sleep.
Well, I´m using Code Warrior, I configured Pin 10 of the my Xbee as input and I´m set it with High, but Xbee didn´t enter in sleep mode.
I don´t have certainty that my code put SM command with 1 because Code Warrior have auto configuration.

Anybody have tips to me about this?

Tnx for attention.