OK unfortunately I cannot see any quick fix solution that would point to one common failure point that would give up the exact combination of failures as listed. I have many years of electronic/mechhanical experience behind me so I am sure that I could track down the problem myself but unfortunately I am a bit far away from you guys to directly help.
Firstly as far as the washer fluid not pumping either to the front or back; no common fuse involved...the reversable pump has an inbuilt thermo-switch which should reset itself upon cooling. The pump turns one way for the front jets and the other way for the rear jets. Do you hear the pump running in either direction? An obvious question is that the resevouir is full...dont always trust the 'low washer fluid" sensor!
As regards the front wipers working but not the rear, could be a seperate unrelated problem. Fuse 17 (15 A) in the junction box (inside the cab) controls the rear wiper but there are lots of other issues determining the operation of the rear wiper: door latched and glass latched for example and there is a lot of logic built into the actual rear wiper assembly.
Basicaly the most likely culprits are firstly the right side multifunction switch and the Body control Module which is screwed on the back of the Junction box within the cab. Fluid spray problems can allso be due to the water pipes/valve/nozzles being blocked which is why I ask if you can hear the washer motor running.
If you need to know how to get hold of the wiring diagram...which includes picture and locations of all the components...and includes a theory of operations/faultfinding chapter...then please PM me directly!