I have a different but related question: I have a 2006 6s Sport with the auto climate control. I have the system in manual mode with the air intake set to outside, the vents set to floor, heat turned on to about 75 degrees, and the A/C light is OFF. My a/c compressor (and of course the cooling fans) cycles on and off every couple minutes even with the controls set as above. It is NOT in auto, the a/c light is NOT on, the vent controls are not set to any defrost modes, and still the compressor cycles on and off.
Yes, I've verified that it is indeed the compressor, not just the fans.
Anyone else having this happen, or does my climate control system have some sort of a problem?
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That's normal. Now if you want to turn off the compressor under those conditions:
1) turn acc on (acc and ac lights come on)
2) adjust fan speed (don't touch mode selector)
3) if acc switched mode to floor+face, turn temp up so feet mode occurs again
4) push ac button off (ac and acc lights go off)
compressor will stay off, unless you change modes and then go back to floor ... you will again have compressor cycles with no ac (or acc) light.
Only true manual mode is when you have adjusted everything, and set temp to eith 60 or 90, and are in face or face+feet modes where ac compressor can be turned off directly.
... If the floor (ie heat) wasn't treated by the compressor, the humid air would DEFINITELY fog up your windows when it rises from your footwells, especially against a cold pane of glass that's exposed to 10-degree weather outside.
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It does not have to rise from your feet to fog a window, as floor mode includes some windshield air. rt%m