All circuits must be protected by a fuse. Your vehicle handbook should tell where to find it.
its connected to the windshield washer jug
It is located in the washer fluid reservoir.
The windshield washer motor is located on the passenger side firewall
either the washer motor has burned out or there is dirt in the washer lines plugging up the washer nozzles.
The windshield washer motor is mounted nside the windshield washer resovoir, you will see the electrical plug going to it towards the bottom.
check the fuses and relays
if you need a good ground. you can use a good bolt under hood or similar.
Remove the wiring harness from the back of your 1993 Mercury Villager windshield washer motor pump. Remove the windshield washer pump hoses. Remove the windshield washer pump retaining bolts. Reverse the process to install your new windshield washer motor pump.
The windshield washer pump is inside the wiper motor and serviced separately.
Check either at the bottom of the windshield washer fluid reservoir or check to see if the wiper motor has washer hoses connected to it
It could be the windscreen washer motor
It is connected to the washer tank.