UPDATE: I found the ignition relay. It is behind the printed circuit board in the Battery Control Center box. I took it all apart and checked the relay by applying 12 V to the coil. It worked and there is a near dead short across the relay. Because of the design, I can't check the relay with everything connected. When I put it back together, still had the problem. Then I started checking the coil voltage. In doing that, I mistakenly left a wire disconnected, then it worked. I connected the wire, and it still worked. I know I didn't fix anything, so I probably will replace the ignition coil. That took care of most of the malfunctions. The turn signals and brake lights still are not functioning. They work off a Bussman panel as sailor_lou described, but it is a small panel, maybe 4" X 4". I checked the fuses, and they are ok. There are three cable groups, with multiple wires, and two 12V supply lines going to that panel. I don't have any wiring schematics for that box, and it is mounted so that I can't wire chase. Tomorrow, I'll try some more things, but I may be near the end of my troubleshooting with the limited information I have. Thanks sailor_lou and teddyu for your help.
