Originally posted by muckerbarry
Yes you are correct. But I have done this before, what you need is 5 pin relay. A 5 pin relay has the extra 5th pin (87a) live when the relay is powered off, wire your relay so that the relay is "on" when your wipers are "on" and wire the (87a) pin to the "park" wire on your wiper motor. That way when your wipers are "off" the park circuit connected to the (87a) relay pin is "on" so your wipers can park. You dont need to connect pin 87 to anything. A breakers yard is a great source of cheap relays of all types!



Pic is From: http://www.reuk.co.uk/Automotive-Relays.htm