Does anyone have a proper wiring diagram for the wiper motor on an 80 2WD Pickup ? my low quality POS Haynes manual is useless. I've installed a pulse controler on the wipers and it works except the wipers are stopping at various points on the windsheild, I'm trying to locate the "Park Return" wire. the wiper motor has five wires.

Blue/Black. (Power on Low)
Blue/Orange. (Power on High)
Blue/Red.
White/Black.
Blue.
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