He has a 97 and said it is on top the battery.
If you didn't have a pump, you wouldn't be able to put fluid in the reservoir or it would run right out. The pump presses into the reservoir down towards the bottom of it. It has a plug going into it and a hose coming out of it that goes to the washers. There is a hose coming out of the top of the reservoir that just hangs down. I guess it is an overflow. Not really sure what that was ever for. The low washer fluid sensor is on the top over by the fender brace. It has a wire plug going to it.