I got it working again. I was just being an idiot. In the cabin fuse panel, there are three fuses in a row to the right of the main panel. These fuses are not on the diagram in the manual. I assumed they were spare fuses because most of the slots in the row don't have leads. Turns out these are not spare fuses, but rather fuses for the relays. My starter relay fuse was blown and I had not checked these fuses. Replaced that one and car is back to normal. Thanks for your advice!