Yes I know this has been done to death and I've exhausted the search bar and I'm still stuck for a solution.  The usual intermittent rear wiper operation, will move randomly when it's turned off.  I've replaced the rear wiper motor with a new unit from gsf, and fitted another second hand 377 relay, which I opened up and cleaned first.  Both once changed the fault remained, can't find any obvious damage to the wiring in the usual places (near washer hose in boot near CD changer) has anyone else experianced this and what was your solution.....(apart from blanking off the wiper hole).

I've not had this problem myself (touch wood!) but could it be the stalk?

I've not had this problem myself (touch wood!) but could it be the stalk?

Possibly, but short of replacing the stalk I don't know how to diagnose it.  It does seem to move on its own more when driving as when I get out to have a poke around it doesn't seem to happen..... Wiring touching the bodywork somewhere perhaps?