There are two relays in the front of the air filter housing, by the driver head light. two are for the wipers, 1 is for turned on and off, and the other one is for fast or slow speed. but you will have to check your fuses first in the engine driver side bay. hope you can fix it
You can buy a fuse probe for under $5 and probe all the fuses one by one (it is a small plastic box with two prongs and an 'led' light that glows when the fuse is good). some fuse packs include a fuse probe at no extra charge. some vehicles work on circuit breakers which are small black boxes. listen to the fuse panel while turning the windscreen wipers on or off to see if you can hear a clicking from the circuit breaker. the circuit breaker protects the fuse. good luck
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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.
If that fuse is okay. try giving the wiper motor a jolt by whacking it end on with a broom handle. Can you hear the wiper motor running? Check the linkages.
Do you know what a wiring diagram is ? A wiring diagram for your vehicles windshield wipers electrical circuit would show all components involved . You would need a wiring diagram for testing ,so you know which wires too test . It would show the fuse location - amperage etc.... Which of these is your vehicle - Notchback or hatchback or station wagon .
The fuse would be marked WPR fuse # 9 25 amp. located in the IP fuse panel . IP - instrument panel fuse box . It's location is
Fuse Block - I/P
Behind the left side of the I/P access panel
Windshield Wiper System
The windshield wiper system consists of a wiper motor, a linkage, a wiper arm and a blade, and a wiper/washer switch. The windshield wiper circuit incorporates a self parking device which consists of a worm gear and a cam plate in order to keep the circuit engaged temporarily when the switch is turned off. The wiper system is driven by a permanent magnet-type motor. The windshield wiper motor is mounted on the dash panel and is directly connected to the windshield wiper linkage.
The windshield wiper motor has 2 speeds, LO and HI, and also has intermittent wiper capability. The wiper switch is an integral part of the wiper/washer switch. Windshield wiper operation is actuated through the lever on the right side of the steering column.
Many cars of that period could be reset by some ignition key sequence.
Try switching from the off position to the on (not start) several times within 15-30 seconds.
It won't hurt anything and might turn off the light.
If the problem is still present that caused the light to go on the first time, it will likely come on again after you start the engine.
I hope the reason for that alarm light has been since corrected.
Some cars needed to have the battery disconnected for several minutes to cancel the memory contents.
Newer cars will not likely respnd to that since flash memory is now common which retains the error code even without power.
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