AIP not turning on in extreme temps

Firstly, Merry Christmas. My first instinct was to just come up here because I’m curious. It’s really cold where I’m at (in the high teens/low 20s) and I noticed when I started my truck this morning, I didn’t hear my air pumps turn on. I always listen for it to come on and turn off when I first start it up. I think they’re frozen and I hope I don’t run into sai issues like it did earlier this year. Already had the pumps and valves replaced $$$. Does it not turn on when it’s too cold?

 

It's likely a frozen valve. My '13 fired up after 3 days of no start in -10° temps. She didn't like it, but no codes or issues so far. I also didn't drive or run it once the shit show started. If you ran yours since the cold hit, you might have gotten some moisture into the system. Let the air temps rise and see if they kick on.

 

It doesn’t turn on if the coolant temp is over 100 degrees or if the air temp is below a certain temp. (I forget what temp)