Can't find fuse box for horn,turning signal and windshield wiper

Question edited for clarity.
Question moved to correct year make model category.

Check the fuses and relays.

Ford Taurus (2000-2007) fuses and relays

https://fuse-box.info > ford > ford-taurus-2000-2007-fu...

2003 - Here you will find fuse box diagrams of Ford Taurus 2000, 2001, 2002, 2003, 2004, 2005, 2006 and 2007, get information about the location of the fuse ...

2003 Ford Taurus fuse box diagram - StartMyCar

https://www.startmycar.com > Taurus > Fuse box
The 2003 Ford Taurus has 2 different fuse boxes: Passenger compartment fuse panel diagram. Power distribution box diagram. * Ford Taurus fuse box diagrams ...

Ford Taurus (1999 - 2007) - fuse box diagram - Auto Genius

https://www.autogenius.info > ford-taurus-1999-2007-f...
Jul 2, 2018 - Ford Taurus (1999 - 2007) - fuse box diagram. Year of production: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 ...

Blown fuse? Check the fuse box in the car. There may be another fusebox under the bonnet.

Diagnose Turn Signal Problems eHow

It is located in the fuse box under the hood in engine compartment ! Dodge calls it the integrated power module , Fuse # 18 30amp. Plus there are two relays wiper on/off an relay wiper high/low ! Find a black rectangular box in the engine compartment an that should be it , also on the inside cover it will show what is what in the fuse box !

Pull off the wires!
The horn will actuate from a relay which is one of the little black boxes on the fuse box. The power to this relay is usually supplied through a fuse, which will also be on the fuse box, and will be clearly marked on the fuse box cover. Pull the fuse or the relay and the horn will cut out.
The most probable cause of the horn blowing is a short on the wire from the relay to the steering wheel, or possibly the wiper contact on the steering wheel. Don't confuse "wiper" with the windshield wipers. it is a small copper finger or carbon brush that makes contact between the horn button on the wheel with a slip ring under the wheel, which in turn is connected to the wire running to the relay.
With modern cars, however, it is a bit of a gamble getting the steering wheel off, since the air bag could be in the way, and the last thing you want is to set off the air bag while you're working on the steering wheel. An airbag is basically an explosive device which can cause serious injury, so if you are not OK with doing such work, take it to a service agent.

Well first I would check the fuse box for burned out fuses. Then I would get a simple dc power tester and see if the windshield wiper motor is getting power. If you don't have a bad fuse and the motor is still getting power I would say the motor has burned out.

replace the COMBINATION SWITCH

Try replacing the wiper relay first then if problem still exist replace multi-function switch

They are in the relay bank which is located above the fuse block. The glove box assembly must be removed to gain access to the relay bank. This relay bank is square in shape and contains the horn relay, turn signal flasher, hazard warning flasher, and circuit breakers for the power windows and power door locks/headlamp doors.

Hope this helps.

Eric

Next best guess is the flasher unit has failed, this could be your little blue box, pick up a replacement at any auto parts store and replace it.