ok I had all of my struts front and rear replaced however the rear is just as low as it was before.. I get air through the lines and the compressor works. No leaks. The thing is the compressor pumps up then turns off as it should but the height is not correct. I disconnected the arm that goes to the self leveling switch on the rear end (if thats what it is called) I move it manually and there is no change and the compressor does not kick in. I need help on this before I waste money at the dealer. what codes if any should I look for and how do I get to them? I do the off and warmer and get ecm codes but not sure how to switch to bcm... any help is appreciated