Windshield wipers won't work was wondering where the relay or fuse is located

The windshield wiper relay on a 2004 Ford F-550 is typically located in the fuse box under the hood. The fuse box is usually located near the front of the vehicle, on the driver's side. To find the windshield wiper relay, you will need to refer to your vehicle's owner's manual or a wiring diagram for the vehicle. The owner's manual should have a diagram of the fuse box that will show you the location of the windshield wiper relay. Alternatively, you can search online for a wiring diagram for your vehicle.

Once you have located the fuse box, you may need to remove a cover to access the fuses and relays. Look for a fuse or relay labeled "wiper" or "wiper relay" to find the windshield wiper relay. If you are having trouble finding the windshield wiper relay, you may want to consider consulting a mechanic or taking your vehicle to a dealership for assistance.

Just replacing parts isn't the way to fix this problem , viewing wiring diagrams too see what all is involved in making the wipers work is . Then using a digital volt ohmmeter to test electrical circuits . Also looking at factory service info. to see how it's suppose to work.
Free wiring diagrams here http://www.bbbind.com/free-tsb/ Enter vehicle info. year , make , model an engine size . Under system click on body & accessories , then under subsystem click on wiper/washer . Click the search button ,then click the blue link. Looking at the wiring diagram i see two fuse's an two relays that are controlled by the BCM - body control module . Also hooking up a scan tool that can read BCM DTC'S - diagnostic trouble codes could be helpful . The wiper switch is a input to the BCM - the BCM will energize the relays to turn on the wipers.

Wiper/Washer System Components
The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper 1 relay
• Wiper 2 relay
• Wiper diode
• Windshield wiper motor
• Windshield washer pump
• Windshield washer nozzles
• Windshield washer solvent container
• Windshield wiper arm and blade assemblies
• Windshield wiper transmission
• WIPER/SW 10A fuse
• WIPER 25A fuse

Wiper/Washer System Description
The body control module (BCM) controls wiper motor low speed operation. The washer pump and high speed operation are controlled directly by the wiper/washer switch. The windshield wiper/washer switch supplies voltage on the signal circuits to the BCM for windshield wiper/washer operation. When WASH, MIST, DELAY, LOW, or HIGH is detected, the BCM energizes the wiper 1 relay by suppling voltage to the relay coil. This allows battery voltage from the WIPER fuse to flow through the relay switched input then through the contacts and out the relay contacts to the wiper 2 relay switch contacts. Since the wiper 2 relay switch contacts are normally closed to the low speed circuit of the windshield wiper motor, the motor will operate at low speed.

DTC B3715 02: Front Wiper Relay Drive Circuit Short to Ground
DTC B3715 05: Front Wiper Relay Drive Circuit Short to Battery or Open

WPR fuse 25amp under hood fuse box .
Wiper/Washer System Components
The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper PCB relay
• Wiper high PCB relay
• Windshield wiper motor
• Windshield washer fluid pump
• Windshield washer fluid level switch
• WPR fuse 25 A
• WSW fuse 10 A
This is more then likely not a fuse issue !!!!!!!
Low Speed Operation
When the wiper switch is in the low speed position, ground is applied through the switch internal resistor and the wiper switch low signal circuit to the body control module (BCM). In response to this signal, the BCM energizes the WIPER PCB relay by applying battery voltage through the wiper relay control circuit to the coil side of the relay. This allows battery positive voltage from the WPR fuse to flow through the switch input side of the WIPER PCB relay and out to the switch input side of the WIPER HIGH PCB relay. Since the wiper high relay is de-energized and its switch contacts are normally closed to the low speed control circuit of the windshield wiper motor, the motor will operate at low speed.
Wiper motor low speed operation and the wiper PCB relay can also be commanded ON/OFF by using a scan tool. Refer to Control Module References.
The PCB relays mentioned above are soldered right into the circuit board inside the fuse/relay block under the hood . There are alot of reasons for the wipers not to work ! The fuse could be blown but fuse's don't just blow for no good reason , short to ground , low resistance high current flow etc.... Intermittant !

Power and Grounds
With the ignition in the ON position, accessory voltage is supplied through the 25A WPR fuse to the WIPER PCB relay, the WIPER HIGH PCB relay and the WS WASH PCB relay that are all located in the underhood fuse block. Refer to Wiper/Washer Schematics.
G200 provides ground for the windshield wiper motor and the WIPER PCB relay. G100 provides ground for the windshield washer fluid pump and the windshield washer fluid level switch.

WINDSHIELD WIPERS

It can be faulty wiper motor or blown wiper control fuse.

Do you hear any kind of noise when you starter the wiper function. If yes then fuse is ok, but issue is wiper motor.

If no movement at all and no noise then its blown fuse or shorted/loose wiper control wiring: -----

For complete troubleshooting i suggest you few helpful links with accurate solutions.

-------------

Click the link below: -------

1993 Ford F350 wipers not working?

http://repairhelpcenter.blogspot.in/2012/02/1993-ford-f350-wipers-not-working.html

------------

How to Replace a Windshield Wiper Motor

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-windshield-wiper-motor.html

------------

Wipers not working, but hear relay click on Lincoln LS?

http://schematicsdiagram.blogspot.com/2011/12/wipers-not-workingbut-hear-relay-click.html

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Car windshield wiper gets power for movement and stops?

http://schematicsdiagram.blogspot.com/2011/12/car-windshield-wiper-gets-power-for.html

----------

How does cars Windshield Wiper System Works

http://technoanswers.blogspot.com/2011/11/how-does-cars-windshield-wiper-system.html

---------

1997 Honda Protege: Replace Wiper Transmission?

http://technoanswers.blogspot.in/2012/06/1997-honda-protege-replace-wiper.html

----------------

Windshield wiper fluid container leaking?

http://whatisbyme.blogspot.in/2012/05/windshield-wiper-fluid-container.html

-----------------

Where is wiper fuse located on1993 chevrolet suburban

http://technoanswers.blogspot.in/2012/02/where-is-wiper-fuse-located-on1993.html

------------

2002 Toyota Sienna: Wipers and Passenger side Power window stopped working?

http://technoanswers.blogspot.in/2012/04/2002-toyota-sienna-wipers-and-passenger.html

-------------

Complete wiper components replacing details for Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/complete-wiper-components-replacing.html

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These details will help.

Thanks.

It can be faulty wiper motor or blown wiper control fuse.

Do you hear any kind of noise when you starter the wiper function. If yes then fuse is ok, but issue is wiper motor.

If no movement at all and no noise then its blown fuse or shorted/loose wiper control wiring:-----

For complete troubleshooting i suggest you few helpful links with accurate solutions.

-------------

Click the link below:-------

1993 Ford F350 wipers not working?

http://repairhelpcenter.blogspot.in/2012/02/1993-ford-f350-wipers-not-working.html

------------

How to Replace a Windshield Wiper Motor

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-windshield-wiper-motor.html

------------

Wipers not working, but hear relay click on Lincoln LS?

http://schematicsdiagram.blogspot.com/2011/12/wipers-not-workingbut-hear-relay-click.html

-----------

Car windshield wiper gets power for movement and stops?

http://schematicsdiagram.blogspot.com/2011/12/car-windshield-wiper-gets-power-for.html

----------

How does cars Windshield Wiper System Works

http://technoanswers.blogspot.com/2011/11/how-does-cars-windshield-wiper-system.html

---------

1997 Honda Protege: Replace Wiper Transmission?

http://technoanswers.blogspot.in/2012/06/1997-honda-protege-replace-wiper.html

----------------

Windshield wiper fluid container leaking?

http://whatisbyme.blogspot.in/2012/05/windshield-wiper-fluid-container.html

-----------------

Where is wiper fuse located on1993 chevrolet suburban

http://technoanswers.blogspot.in/2012/02/where-is-wiper-fuse-located-on1993.html

------------

2002 Toyota Sienna: Wipers and Passenger side Power window stopped working?

http://technoanswers.blogspot.in/2012/04/2002-toyota-sienna-wipers-and-passenger.html

-------------

Complete wiper components replacing details for Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/complete-wiper-components-replacing.html

------------

These details will help.

Thanks.

Hi,
The 'stalk' that controls all these functions is faulty. Your truck SHOULD still be under warranty...Take it in.

GL,
Td

Check the relay relay maybe latched on. See if there is an identical relay in the box and swap them if problem goes away replace relay.

For wiper problem,troubleshooting,check the help links provided below.Click the link to go through its procedure:----------------
HOW TO REPLACE A WINDSHIELD WIPER MOTOR

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-windshield-wiper-motor.html

---------
Wipers not working, but hear relay click? http://schematicsdiagram.blogspot.com/2011/12/wipers-not-workingbut-hear-relay-click.html--------- Car windshield wiper gets power for movement and stops?

http://schematicsdiagram.blogspot.com/2011/12/car-windshield-wiper-gets-power-for.html

-----------------
How does cars Windshield Wiper System Works

http://technoanswers.blogspot.com/2011/11/how-does-cars-windshield-wiper-system.html


------------
Where is wiper fuse located?

http://technoanswers.blogspot.in/2012/02/where-is-wiper-fuse-located-on1993.html


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Complete wiper components replacing details for Car Models? http://repairhelpcenter.blogspot.com/2011/11/complete-wiper-components-replacing.html The wipers not working? http://repairhelpcenter.blogspot.in/2012/02/1993-ford-f350-wipers-not-working.html

From your owners manual:

Fuse#11 30A , Wiper Run/Park
Relay, Wiper Hi/LO Relay, Windshield Wiper
Motor, Rear Washer Pump Relay

U will also need to check the relays if the fuse is ok, the relay, it is the underhood fuse box
Relay #202 — Front Wiper Run/Park Relay