I have a 2015 Cruze, 1.8 engine, 6 speed manual transmission, on my way to work today my ac was working just fine, and on the way back home from work when I turned on the ac, it was blowing out outside temperature air. I checked the compressor relay by swapping it with an identical relay in the fuse box, and still nothing. I have a bidirectional scanner and I commanded on the ac clutch relay and you can hear it click, and I turned on the radiator fan with the scanner and it came on. With my scanner live data, it had a section on there that said “high side pressure Psi 90” I do not know if that is normal or not, I can check the pressures with a gauge set but if the compressor won’t come on at all I’m not sure if that’ll tell me anything. I’m not sure if it’s leaking refrigerant because I’ve never had any problems with the ac not working or even blowing warm, it’s always been nice and cold, the only problem I’ve had was a rough idle with the ac on before. And the weird thing is now, when I turn on the ac switch, it makes the same sound as if the ac actually worked and the rpm drop a tiny bit for a second, but the compressor clutch is not engaged. I’m inclined to believe that it’s something electrical, only because it just went bad out of nowhere. But I do see some damp spot on the compressor, so maybe it could have a refrigerant leak, but maybe it’s blowback from a small oil pan gasket leak, it just seems odd though how it went bad in one second like that. Thank you all for any help.