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Is the wiper not moving or is not spraying the washer fluid?
The wiper motor is out or the motor fuse is blown.
Check to see if your pop hatch glass function still works from the remote.
If it does, then the issue is from the motor. If it does not, then the issue is likely from the motor harness being loose or the motor fuse being blown.
Alright well check the fuse first. Then you can worry about if it is the harness of actual motor that went.