Just bought an 02 discovery, my first from this auto maker. Front signals work fine. Only my rear bumper driver signal works. When i try the passenger signal, 3 of the 4 bumper bulbs barely blink, similar to how a hazard signal should blink. Neither of the upper signal lights work. I assume i have some wires crossed or pinched somewhere.

Does anyone have any tips for where this might be happening?

Also, both the upper and bumper light fixtures had water in them. I cleaned them out and im letting them dry but i would be surprised(and thrilled) if that fixed the issue. I will look into ordering new light fixtures.

I would appreciate any wiring diagrams that would help me with the issue.
Thanks

 

The 2002 doesn't have "upper" rear turn signals -- only the ones in the bumper. Start with trying to work out whether you're getting power to the signal that isn't working. May be something as simple as a blown bulb.
Replacement light units are going to be expensive, if you can find them at all.