First, please review this article:
Where's The Fuse?
Then to answer the question you asked:
There are actually 3 fuses involved in your rear wiper system.
They are all located in the driver's fuse/relay box located under the left side of the dash.
Fuse #7, 7.5 Amp
Fuse #21, 7.5 Amp
Fuse #30, 20 Amp
These same three fuses, if blown, will also have the symptom of the front wipers not working. So if the front wipers are working, the problem has nothing to do with a blown fuse.
There are also several control units involved in making the rear wipers work:
There is the Combination Switch Control unit, the
MICU Rear Junction Box Control Unit, and the Relay Control Module. These are also powered (protected) by the fuses listed above.
I would recommend Obtaining a scanner and scanning the Controller Area Network (CAN) in your vehicle to see if there are any fault codes that can help you determine why your rear wipers are not working.