To find it, you need to consult your owner's manual. The manual will have a diagram showing the fuse box layouts (there's usually one under the hood and one inside the vehicle, often near the driver's side). It will specifically tell you which fuse controls the washer pump.
If you don't have the owner's manual, you can try searching online for a "2003 Jeep Liberty fuse box diagram." Many websites, including Jeep forums, offer these diagrams. Remember to always disconnect the negative battery terminal before working with fuses.
