Electrical gremlins, old relays?  moving seat belts sometimes get stuck, or don't move.  Now running (position) lights don't go off when all off and key removed?  I can only find a few relays, need relay locations and complete car schematic.  I have Chilton's Total Care manual but it only shows major engine schematics.  

It's a great car, everything simple and easy to work on,  I've kept it running for my Mother in Law for the  last ten years with minimal expences.  She's retired on Soc. Security and it's cost less than a couple hundred dollars a year for all this time.

The "running lights" problem is probably that rocker switch behind the steering wheel. Somehow got turned on. 

My 92 had those annoying seat belts.  They were always flakey.  My 93 has them, but they still work.  When they get flakey, I'll install a set of pre automatic lap belts, I saved from a 1990.

 

Yes, you want to try to find a FSM or scanned pages to download, as they have very complete schematics.