With Pulse

With the wiper switch in DELAY (pulse), battery voltage is applied to the wiper motor connector at terminal "B" through CKT 143. Voltage also is applied to terminal "D" through CKT 113 and terminal "E" through CKT 112.
The length of delay tine between sweeps is controlled by the variable pulse delay resistor. The delay is adjustable from 1 to 22 seconds, nominally.