Windshield Wiper Fluid Doesn't work

1997 FORD F-150

15,900 MILES • V8 • 4WD • AUTOMATIC

AJSOFTAIL

MEMBER
1 POST

I wanted to know where to find a diagram showing what fuse goes to what on my truck. I need to find the fuse that controls the motor that pumps the windshield wiper fluid through. I press in on the button on the steering column and nothing comes out. Is there a diagram somewhere on line of my fuse box that's underneath my dash? Any help would be appreciated. Thanks much

Dec 10, 2007 at 6:28 PM

KASEKENNY

✓Experienced Mechanic
18,907 POSTS

More than likely there is an issue with the relay. The fuse is a shared fuse for the wipers as well so if they work then this fuse is fine.

However, there is a relay just for the washer system and we need to check the operation on this one.

Here is a guide that will help with this testing:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Once we know if the relay is okay, we can move onto the next thing, but I would jump straight to the pump and check for power when you are activating the pump.

https://www.2carpros.com/articles/how-to-check-wiring

If you have power at the pump, then just make sure the ground is good and if it is then the pump is the issue.

Please see the wiring diagram below that will help with this. Please let us know what you find from this. Thanks

Image (Click to enlarge)

Professional Diagram for 2CarPros Members
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Oct 14, 2021 at 12:46 PM

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