I have a 2002 Yukon. I cannot locate a fuse for the rear window windshield washer pump. Does anyone know where it is and how it is named?

I’ve located one 15 amp fuse for a washer pump in good shape and I’m assuming it is for my front pump since the front window washer pump operates. The rear pump works when I apply 12V directly to it, and the dash switch is operational providing 12 volts when I push it in, however I am not getting 12 V to the pump connector like I am on the output of the dash switch.

I’m assuming the wiring is good, but will rewire it if necessary. So I’ve deduced there must be a second fuse for the rear window washer, but cannot find it.

Any help, is appreciated!