AC not enough cool, and temperature remains constant.

You need to have the A/C pressures analyzed using a professional set of gauges with both high and low readings and see what story that tells you.

Wrenchtech thank you very much... I collaborated the system and it worked.
Regards

You "collaborated" the system? I'm dieing to know what that means.

may be i am interpreting it in a wrong way...
turn on engine, switch AC to auto, turn off engine, open the hood and remove the IOD fuse in the power distribution box for at least 30 seconds, put it back, and turn on engine, the collaboration will start by itself. I did it and it worked for me now the air is cool and the climate control is also functional.
that is what i did... I found it some where on the internet...
Regards

OH, you "calibrated"........
Collaboration is working together to achieve a goal..........LOL

hahahaha... yes me and the calibrating technique worked together to fix the problem...

Hello Wrenchtech, I need your help. as I told you the AC worked well after I COLLABORATED it... when I turn the AC off or restart the engine the AC will not work fine, the climate control will not work then I have to recalibrate it... it works fine... restart and will not work... recalibrate and will work... like this... what do you suggest? please..

You might be having a problem with a blend door actuator. It may be returning incorrect position signals back to the control head.

how can i check this. can you guide me please?

All you can really do is see if it responds to commands from the temp ****.

i have to watch the white ****, yes? if yes then; it spins while calibrating it, but does not give any response when adjusting temperature ****.

You're at a stop sign at that point. It could be either the control head or the actuator and it gets highly technical to understand/test which is at fault/ It may require the use of a factory scan tool.

I have noticed that the AC works fine, but i can not control the temperature, sometime it blows cold air some time it is just same like surrounding air. I removed the actuator and adjusted the blend doors with the white ****, and now it blows cold air, i did not connect the actuator, so keeping it on cold... is this a problem with the thermostat or temperature sensor? I have checked the actuator it works fine, and the blend doors also looks fine, at least when i was adjusting the white ****.