In my 2000 GS300, the AC worked fine. It blew ice cold even in the day time when the sun is beaming outside. There were a few cold days down here in Florida, where in the morning time, I would turn the heat on. after those few days when it warmed back up, I went to use the AC again and it's not blowing cold. The AC fan and compressor are coming on and the AC light is "not" blinking. How could the AC have come to a sudden stop like that if the compressor is still engaging?

Thanks in advance....

Edit:

I would also like to add that I've installed a system between the last time I used the AC and it worked fine and now that it's not working. I changed the radio and all other things were the AC control piece was removed and replaced. I remember plugging everything back in and all of the buttons and screen functions are working. I'm a little lost....

 

Run the climate control diagnostics look in the stickies to find out how maybe it will give you a code. You have to press a sequence of buttons on the climate control but I don't remember which. It's in the stickies.

 

Thanks for the reply Sam. After doing a little more searching, I'm starting to think it has something to do with the servos. Car blows slightly cooler on the drivers side. I first noticed this issue after using the heater in this car for the first time since I've had it. Seems like it's not fully letting the cold air come through after switching from heat to cold.

I'll keep searching

 

I would lean towards the servo also. Mixed air servo is bad. Theres a DIY on here too.

 

When you run the diagnostics if you hit a certain button (can't remember which one) it will cycle all the servos