Our Ford Transit van WN 2011 2.4 diesel turbo manual has developed a problem during rain. The wipers after activating will not stop after the rain concluded, the wiper blades are all over the windscreen instead the normal position. The speed of the motor in an erratic. The only solution is to pull over and remove the relay from the passenger side box.
Replaced new multi switch and checked both relays but not certain if they are functioning OK. I checked the earthing on the wiper motor and cable looms and seems to be fine.
What other items I should be looking for please?
