rear corner air suspension sagging

[ninjajim4]

Hi all,

I've seen a lot of threads but none that really match my description. The driver's side rear corner is sagging. It's not blown because when I jacked it up to inspect, there is clearly some pressure in there, just not enough with the full vehicle load. It doesn't change height whether the car is running or not.

I checked all fuses, those are fine. I've also tried pulling the fuse in the trunk to reset the ride height, but all I hear is a small click and nothing happens.

I think it's most likely the compressor itself. However, I don't have any warnings on the dash or the message center. Is that typical or expected?

Based on other threads, I think I should be getting an error message. I don't want to just throw parts at it. This is for an 2008, 4.8 liter.

Thoughts?

Thank you!!