A couple of questions
1. How did you test the water valve assembly? Obviously it is not getting power, although we don't know why.
2. What was the original problem that caused you to replace the CCU?
I would check the wiring harness from the CCU to the various components, including the door lock assembly for continuity. Also check the door lock assembly. Yes, we know that has nothing to do with the error code, but that is life with these microprocessor controls.