Rear Washer Pump Constantly On???

[AK47]

Hi I had the same problem ,,took a while to work out ,,the problem is in the control module/motor which is located in the front i.e. below the driver side front wiper blade in the bulk head ,,you may want to try removing the the bulk head cover ,,,remove the blades two bolts each side the plastic hold clips ,,also there is two cross head screws under the covers on the bulk head which pop of off ,,be careful when removing the bulk head cover you can break the clip fixings ,,,then you will see the wiper motor module ,,when you remove this clip off the top cover you will see a circuit board and there maybe dampness in there which causes short circuit ,,also look on the board to see if there is any foreign matter that also could cause a short if your luck this may work if so seal this module up with something that will make it water proof,,,,if it does not its a new module....