I have a 1999 Subaru Impreza outback sport and the the power door locks stoped working. None of the switches work and none of the doors power lock. The window controls still work and I don’t believe the switches are bad. Before they completely stopped working it started to make a struggling sound when I would lock them and it was weaker I had to manually lock the drivers the rest of the way but the others would lock. I thought it was because I had a bad battery so I wasn’t worried about the locks (my battery at the time was really spotty and didn’t push a lot of voltage). Then they just stopped working all together one day. I’ve checked the fuse and it’s not blown. The internet is pointing to a wiring issue but there’s no information online where I should start poking and prodding with the volt meter. Any help would be appreciated.