Unfortunately we don't always have the answer on these and can only offer the best way to try and work through the issue. I understand just having the answer would be convenient but we will actually need to test these systems to find the issue on one of them and go from there.
The only thing that these have in common is a main body ECU on the left side of the dash. So again, I would pick one of these systems and check for voltages coming from the ECU. If none, I would replace it and retest all the systems.
See the wiring diagrams below.
Images (Click to enlarge)
Tuesday, May 4th, 2021 AT 3:54 PM