I'll fill and bleed the system later.
Next I moved on to the brake pressure sensor switch. Alert readers will remember that only one of the wires was connected to the sensor switch, the other one was dangling. I bought a new switch from Pelican Parts and replaced it. The new switch has two connectors, but upon removing the old one, I found it was in good shape, yet had only one connector terminal. I can only think it was a badly-done replacement, so I put in the new switch and put new connectors on the ends of the wires, running them through a rubber shroud. It turns out the length of the connectors prevents the shroud fitting correctly, so I'll put right-angle connectors on soon.