Nacho-RT74
Well-Known Member
Yeap, the 12 volts on the wiper harness when wipers are off is for the parking function and makes it spin in opposite direction for parking. Then internally the power is cut, while the wire remains hot while key is in RUN or ACC ( wipers are feeded throught the ACC leg of the ign switch/fuse box ). When turning on the wipers, that wire power is cut and power comes from another wire.