In the "OFF" position the wipers switch is not off.  IT is set to
allow another switch, a position switch, to controlled the motor
 operation. This switch is located in or around the wiper motor,
and is controller by the rest position of the wipers.  Obviously
something has gone wrong with yours.  Good luck getting
to it.
                                  Eric

Giasson, Pascal (DNR/MRN) wrote:

>My wipers have been going on by themselves intermittently so I thought I had
>a short in the switch.  I took the switch all apart, cleaned everything and
>greased with dielectric grease.  I thought that would take care of it, but
>it did not.  Has anyone else had this problem?  Any ideas where to look
>next?
>
>Thanks
>
>Pascal
>1984 Westfalia
>
>
>
>