After driving to a fish pond on a rough, bumpy dirt road, my 1990 740 started doing some strange things.
When I turned on the headlights, the wipers come on. I had to pull the horn/wiper fuse to get home without the wipers screeching on the dry windshield.
The next day, I noticed that the power windows were dead, but the fuse looks good (I don't have a 30A handy to actually switch it out and test it).
Next, the turn signals went out, and the fuse is blown. However, when I put in a new fuse, it blows immediately.
Obviously, something electical is wrong. A short somewhere perhaps? How is something like this diagnosed by the home mechanic?
Thanks, Jay R.