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I picked up this wiper switch from a junkyard a while back — if memory serves it was mid 70s F100 maybe? Does that look right? More importantly I need a wiring diagram so I can hobble together a 12v solution for my ‘52.
there is a cam inside the wiper motor that provides power after the switch is turned off until it rotates around to the Park postion...then the cam opens the internal switch in the wiper motor.