We have had two failures on the car which seem to be linked. Firstly the rear wiper no longer works (need to fix as mot is due) and also the rear door (boot) no longer unlocks with central locking. It will unlock and lock manually with key. Seeing as both problems affect the boot area it seems reasonable to think the root cause of the problems are maybe the same thing. Have checked the fuse and it is okay. Can anyone advise please?