Well... I have a victory, even if it is a somewhat unsatisfying victory. I reviewed the wiring diagram and figured out the source wire coming in was a green wire. I tested the system with a known good 12v source and it worked. So I knew it was somewhere from the FRB to the water pump bay. Knowing it was a large green wire helped me source it in the FRB (no labels for which fuse is which). There was a large green wire that was bent pretty badly going into its plug, so I straighten it a little. I also replaced the fuse, which was not blown, but it look pretty old. Anyway, I then checked the voltage at the water pump bay and had 12v on the large green wire. Hooked everything back up and have a functioning water pump!!! Like I said... not a very satisfying victory, because I'm not really sure what fixed it... but it is working. Thanks everyone.
