I'm new here, recently wound up with a '93 GLT. Needless to say, it's got more than it's share of issues. Somehow I have a feeling it's all connected in some way, but I'm not sure. I've never worked on these cars.

Half of the electrical components seem to be getting absolutely no power. Here's a short list of the things that refuse to work, though chances are I'll leave out a few.

Horn, interior lights (all of them), none of the windows work, I don't believe the heated seats work, the outside temperature always reads "LO *C", the AC compressor won't engage... there's more I'm sure, but that's all I can list right now.
Additionally, the SRS light and headlight(?) light are both lit on the dashboard.

What does work:
Power seats, mirrors, sunroof, signals, headlights, engine, etc. the radio didn't work, but after installing an aftermarket one, it does. The previously mentioned accessories refused to work with the stock radio as well.

I've checked all the fuses, and changed all the relays that are accessible from the top of the fuse panel (just shots in the dark) and I've come up with nothing.

Any suggestions would be greatly appreciated. (It's really hard to go through a drive-thru without windows)

 

Welcome to the world of Volvos.

Anyway, it sounds like you are going to have to just start tracing all the wires and see if any of them are broken. Also, make sure you have a volt meter handy so you can check for power along the way.