When the washer switch is pressed, the wipers operate at low speed and the washer sprays the windshield as long as the washer switch is held on. After the the washer switch is released, the washer stops and the wipers return to the park position after 2-4 sweeps. If the wipers were in DELAY mode when the washer switch was pressed, the wipers return to DELAY mode after the wash cycle is complete.

When the wiper switch is set to LO, the wipers run continuously at low speed.

When the wiper switch is set to HI, the wipers run continuously at high speed.

When the wiper switch is set to DELAY, the wipers make one complete sweep, then pause for 1-22 seconds before making the next sweep. The pause time is adjusted by turning the wiper switch through the delay range. The time interval is controlled by a solid-state timer in the wiper motor module.

When the wiper switch is moved to MIST and released, the wipers make one sweep at low speed and return to park position. If the wiper switch is held in MIST, the wipers will continue to operate until the switch is released.

When the wiper switch is turned off, the wiper motor returns the wipers to the park position.