It is a van that I am thinking about buying, so I don't know how long this has been happening. It is a repo at a local credit union, so they are not sure either. The wipers work fine. It's just the washers that seem to be reversed. They are not on the same switch. The windshield wipwer switch is on the steering column and the liftgate swtch is on the dash.
Right, but what I meant was, are the front washers and front wipers on the same switch, and the rear washers and rear wipers on the same switch? If so, it's strange that only the washer function would be reversed and not also the wipers.