o could be many things. First I assume the washer jar is filled- o silly me. There is not a specific fuse for the washers---runs on the wiper circuit. Next the list of what it could be, assuming ALL connections are correct. IS the manual switch YOU move on the dash working? Is the washer pump, which is attached to the wiper motor engaging and pumping or trying to? Now if the answer to those questions are YES, check the pick up tube, located in the washer jar, yet removable , for a blockage or clog. YES TO ALL? Should be squirting at ya.
The fluid not spraying could be a clogged line or disconnected line or bad windshield washer motor. The rear wiper not working could be a bad wiper motor in the rear or unhooked linkage or fuse or relay. Check the fuses etc first.
Should be the same as the wipers--Check to see if you are getting power to the washer pump - if so could be a bad washer pump
could be blown fuse or short in wiring
Check with your dealership - there was a recall issued regarding the windshield wipers. They could get water in wiper motor when it rained or when the car was washed and cause the wipers not to function properly. I had an 02 with the same problem. The problem stopped after recall was fixed.
The wiper switch on the ParkAvenue could be bad. Or, the intermittent relay for the wipers could be stuck, causing the wipers to run.
If Your Question Is That You Are Not Getting Much Water Onto The Windshield. Look For The Screen To Be Partially Stopped Up In The Washer Fluid Tank Or The Hose. Also You Could Have A Small Hole In The Line Not Allowing The Unit To Pull The Fluid To The Wipers.
MOTOR FOR WIPERS
I have a vague recollection that the neutral start switch could be the problem.See "Related Questions" below for more
if one spray doesnt work when cold, i would check that the fluid is not the cheap one that freezes easily
It could be the windscreen washer motor
could be worn rocker arms ( under valve covers ) or lifters
The linkage for the wipers could have slipped. If the linkage is not aligned right, then the wipers will not stop at the right spot.