Pulse Operation

With the ignition in the ACC or RUN position, battery voltage is applied to the wiper motor module connector cavity C and the windshield wiper/washer switch through CKT 143 (YEL). With the wiper switch in the DELAY (pulse) position, voltage is also applied to the windshield wiper motor module connector cavity E through CKT 96 (BRN)

For variable-pulse systems, the length of delay time between sweeps is controlled by the variable-pulse delay resistor. Delay is adjustable from 1-22 seconds, nominally.