Haven't really had the chance. I haven't noticed anything not working. I'm going to run the AC and see if it blows cold in the back. I bought this as a project so it's mostly just parked at home for now.
I just bought a 2004 GX470. I popped the hood and noticed that someone wrote in sharpie "Rear AIC Deleted 1.3lbs". Does anyone have any idea what this means?