Re: new sable owner
The windshield washer switches often get dirty on this model. Mine worked intermittently until I cleaned it. If you narrow it down to that, it can be taken apart and cleaned.
There was a website somewhere with pics on how to disassemble and clean, but you don't need that. Just pop off the end cap and take it apart very, very, very carefully (did I mention very?). There are some small springs and parts in there that will shoot across your interior if you don't cup your hand around things, or cover with a rag. Once you safely get it apart clean all the parts including the contacts down inside with a Q-tip.