Thank you to all that contributed to this thread.

I tested everything possible. All wires showed the correct continuity, voltage, and resistance.

I did take the back cover off of the ADS Module and there was nothing visibly wrong. No leaking capacitors, nothing.

Against the advice of others whom are not on this site, I replaced the ADS Module/computer. Reasons given not to replace were that the module hardly ever fails, If the module was bad, I would be getting a fault code for all 4 damping valves not just 3, etc.

Replacing the ADS module fixed the problem 100%. Once installed, the car leveled itself properly and it has thrown no codes. The ADS module was absolutely the problem.