Problem AC stay on??

[lapinGTI]

Hi,

I am new on this forum, i have look around for info concernig toyota corolla, and finally i just baught a 1999 corolla ce. It's a economic car for highway, maybe not as much as my oder cars, but fur sure more reliable. comapare to ma 1981 rabbit diesel. I will do about 35 000km for the next two years, i needed i relaible and inexpensive car.

For now i have change the Automatic transmision oil, engin oil, cooling liquide. I have the rear brake to do soon.

Now the problem:

I have a probleme with the Air clim, once ON it stay on, When i put the defrost (rear window) is Activate the AC, but when i stop defrost, AC stay on... Same when i use the AC switch. My taught is a bad AC relay?

Any idea? I would like to know where is the AC relay? And if any bode have the wiring diagram for my car i would apreciated.

Thank you.

[enoel]

Not sure if this is what you are experiencing, I hope it helps:

air conditioning

[landphil]

The A/C normally works to remove humidity when the heater is on defrost or defrost / floor blend. I suspect if you had the rear defrost turned on the heater may have been on defrost as well?