Without Pulse

When the wiper switch is on low, battery voltage is applied to the wiper motor through the blue wire. When the wiper switch is in high, battery voltage is applied directly to motor through the blue/red wire to the high speed brushes.

When the wiper switch is turned off, the run/park switch in the wiper motor is still in the Run position. Voltage is still applied to the wiper motor at the low speed brushes through the run/park switch, blue/white and blue wires.