Both the front and rear washers are not working, which fuse controls this?

The washer fuse should have power (battery voltage) while the ignition switch is in the RUN position. Verify both sides of the fuse have power. If the rear wash functions them it's not the fuse.

The switch signals the Body Control Module (BCM). The BCM energizes the front washer relay.

Input to BCM from switch is BCM connector C1,24 PK. Output from BCM to relay is connector C4 15 OG.

You need to verify continuity from the the switch to the BCM and from the BCM to the relay.

Comment below for further assistance.

Replacing parts just to replace them wont fix a bad wire or part. Better to use a voltmeter and ohn meter to check if your getting power to the wires. You may have a bad connection or bad switch on the column for the pumps. Without checking the circuits it will behard to tell what it is thats wrong. Find a wiring diagram and trace the wires and components.

Shows two wiper fuses, one for the front the other for the rear. Both are in the underhood fuse box. Under the hood, the fuse box cover may have a legend on it, shows which fuse does what and the location. Your owners manual should have this info. Didn't see separate washer fuses.

Check fuse for rear wiper

It's probably the washer pump motor , but testing is the best thing to do . Fuse #45 front an rear washer pump , plus there is two relay's . Both are controlled by the BCM - body control module . The fuse is located in the under hood fuse box .

In the under hood fuse box , should have diagram inside the lid . Front wiper's or rear ? Front fuse # 36 - 25 amp. Plus Two relay's PCB hi and Wiper PCB relay . Wouldn't think this being fuse problem . Wiper switch , motor etc... The wiper's are control by a computer . BCM - body control module .

The windshield wiper/washer system consists of front and rear wipers. The front and rear wipers are operative when the vehicle is in accessory or run. The front wipers have 4 different modes: Mist, Intermittent, Low, and High. When the front wipers are in the intermittent mode, there are 5 delay modes to chose from, commanded by the windshield wiper washer switch through the body control module (BCM). The rear wipers has an only one mode.

If the fuse is bad , could have a short to ground or wiper motor pulling to much current (amps) . Fuse's don't just blow for no reason ! Could also have DTC'S - diagnostic trouble codes stored in the BCM .
DTC B3715
DTC B3873
DTC B3875
DTC B3922

DTC B3715 02: Front Wiper Relay Drive Circuit Short to Ground
The body control module (BCM) controls the wiper motor based on input from the windshield wiper washer switch. The BCM monitors the wiper washer switch through three separate signal circuits and a ground circuit. The windshield wiper switch high signal circuit is used to determine high speed wiper operation, the windshield wiper switch low signal is used to determine low speed, intermittent, and mist operation through the use of a resistor ladder, and windshield washer switch signal circuit is used to determine washer operation.
The BCM controls the windshield wiper motor through two output controls, controlling two different PCB relays which control the desired wiper speed, high or low.
DTC B3922 00: Front Wiper Function Select Circuit

The PCB relay's are non- servicable , replace fuse box . Soldered in Your best bet mit be to take it to a qualified repair shop .

wiring problem possibly, do you have a millimetre? check to see if the pump is getting power then go from there!

check to see if you have power to pump with a 12v tester,if so, it may be the connection to the pump gone bad .you can always put the test light on the fuse end and have someone make the pump work to see if that fuse controls both pumps. make sure 12v tester is ground well .Also you may want to take the hose off the end of the pump that goes to the line to the windshield and see if water comes out the pump

check the washer line it maybe blocked. un plug the pipe from the water pump and blow down it if nothing take the jets off and try again on jet at a time. if pipe is fine then check the jets using a needle pock the holes with a needle and blow out keep doing this until you can blow the same way the water comes out. also on the line there is a one way valve this can block up so that may need changing.

FUSE...RELAY...CIRCUIT BREAKER...OR WIRING! WITH REAR WIPER SQUITER SWITCH ENGAGED,,,CHECK FOR VOLTAGE AT HARNESS CONNECTOR