I pulled the wiper motor and the remaining arm out.

Wiper is an American Bosch 12K 2799 also WWC 12K 785 and then B12 17 71 which I figure is the date it was made.

It only has 3 wires, Red Black Green. The Green goes one rev and stops. If I hook that the grn and black together it will make one rev and stop. The red keeps going. The Black by itself will keep going. The way I tested it using a battery charger with the negative lead to ground on motor and using the Red charger to see what each lead did. Any ideas are greatly appreciated, what kind of switch and where to get power, ACC? Thanks Larry


58 gmc 100 with 350 sbc