Big thanks to Dave801 for this, the great photos, and especially the 'move the wires' trick, even the 'how to pop the connectors' part. Great! Worked pretty much exactly as described for me and made my task far faster and easier and way less time with a neck crick from contorting up under there! I will confirm that for my van the 1,4 switches are the 20 A from the 43 pin connector and the 2,3 are in the 6 pin, and colors match the description. Note, my van was Xmas present, built Thanksgiving week and probably one of the last off the line for 2020; given the changing designs and documentation I did test/confirm step by step. My contribution ( I hope) is to the ' what is hot when' question. For any reference, I am working from the 12/2020 rev of the BEMM. Fig E189518 Rev1 p 125 Aux Fuse Panel fuse F15 (5A?). Position A is described as Ignition Only B is described as Permenent Power Only, default delivered for for my van was Position B. The verbiage is misleading/unclear. I have concluded that the wires are hot when the switch is illuminated and not when not, by no means a given. So the following conditions.Sounds like the run only feature is not real. The number of us have confirmed that for all of us it's ignition switch on only. No switches are run only.
1) Fuse pos A. 2) Fuse pos B. Key pos 0 (off/out), 1 (accessory? radio a few lites), 2 on/run (all panel indicators/ relays switch on etc).
The overall result is that the Permanent Power on appears to be controlled by the Battery Guard function. At F1 all switches are cold if the key is not in K2, then hot, pretty much end of story. At F2 switches go hot only when K2 switched and then stay hot in all key positions including K0 until the timeout on the BG function kicks in, which seems to be 75 min, then all go cold until a reset by K2. This is the same behavior as the CCP2 175 A connection whereas the CCP1 60A connection is truly always hot. One other data point. I am interested in investigating the SRC inhibit function. Vehicle Interface Connector C33-E under the driver seat in my van has a jumper between pins 4-9 having to do with the Load Shed function. When I pulled this connector out all switches are always cold, don't know details but probably makes sense somewhere, did not check CCP2/1 but suspect same is true, maybe not CCP1. I believe the battery guard/timeout condition was identified in the 'unkie' thread.