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When in AUTO mode the A/C button stays lit for about 1 second and then goes out and there is no cold air.
Defroster also does not blow cold air.
Checked the DIC: 99 - HVAC - no codes
I have a similiar problem...but mine will come back to life in about 15 min, the light stays on and if I turn the car off it takes again about 15 mins to fire up again.
I hear ya.
I was just asking because if the external temp sensor sees less than about 35 degrees, or if the sensor is unplugged or bad (reads 69) then the ac compressor wont come on. I know the internal sensor by the key has something to do with it also, but there is no reading to view.