[ether]

Here's a weird one...my XC90 has been looked at by a couple of garages over the past year because of CAN bus issues. At some point, somebody has done something to reverse the front and rear windscreen washers.

Basically, when I pull the wiper stalk towards me, the front windscreen wipers start but the rear washer operates. When I push the stalk, the rear wiper starts but the front washer operates.

Any ideas what might have been done to cause this?

Cheers!