Active suspension relay or suspension control module

Reinstalling air ride system in SUV Including a new compressor, rear air springs bags. Rear fill solenoid as well as two new solenoids that were included with the rear air spring bags. I also replaced rear shocks. The previous owner had tried to do a coil conversion but only got as far as replacing the original air bag with coil springs. I of course removed those springs when I installed the airbags. The front air shocks looked okay so I left them in place.
After everything was installed I switch on the air ride switch in the passenger compartment close all the doors and switched on ignition and waited for the compressor to engage. But nothing happened. So I did some research and thought it might the active suspension relay located on passenger wheel well. It looked okay, but for $16.00 at pic a part. I got a used one unplugged the connector from the one I assume is not working and plugged in the used one I just purchased and the compressor came on immediately.
However, this happened without the ignition switch turned on. Although the compressor engaged the rear airbags nor the front airbags filled.

After some research I realize that none of solenoids were getting power. So I ran a line from the battery each solenoid and the rear airbags start to fill. However the only way I could get compressor to shut off was to unplug the relay turning off the switch did nothing. Now the rear airbags sit way too high and I do not know how to deflate them. I thought the height sensors would stop the compressor once it reached programmed drive height but they did not. So what I did was reconnect 12 volts power to all solenoids without plugging the relay back in and the car leveled out. I disconnected the power from all solenoids and the bags and front air shocks are holding, but I want my system to work properly. Do I have a relay issue or suspension control module issue? If it is the SCM where is it located and how do I go about removing it? Testing it? Replacing it?
Please advise? Thank you in advance for your advise, it is really appreciated.