When I picked up the van, it had no battery
I bought one to install, and when the battery was connected, the headlights were on. The dashboard lights were off and did not come on. There was no light switch, so when stopping, I had to disconnet the battery
This turned out to be a very easy fix. I bought the headlamp swtch ($25) and knob ($7) and replaced the switch, and added the missing knob.
After the fix, the lights worked well, as did the dimmer switch on the dashboard lights