Hi Joe,

What you have, a 2864014, is a three speed wiper switch for a 68 - 70 B body with the bright chrome knob without any delay/intermittent capability. The washer push button switch is tied to the B/U terminal on the wiper switch that powers the pump motor.

I will post some information tomorrow to help you test your switches and you are correct that the FSM is vague on how the middle speed actually works.

The middle speed is done through resistance on one of the two brown w/ white stripe wires connected to the A terminal, the wire length buried in the harness, then returns to the R1 terminal to create the right amount of resistance for the medium speed.

The resistor on the side of the switch creates the resistance for the high speed.

I've had just too much Mopar fun for one day.

Jim