With the wiper switch in DELAY (pulse), battery voltage is applied to the wiper motor connector at terminal B through CKT 143 any time the ignition switch is in the RUN or ACCY position. Voltage is also applied through a resistor in the switch to the wiper motor terminal D through CKT 113 and terminal E through CKT 112.

The length of the delay time between sweeps is controlled by the variable pulse delay resistor in the wiper/washer switch, CKT 112. The delay is adjustable from 1-22 seconds.

In the LO position of the wiper switch, battery voltage is applied to the wiper motor connector at terminal B through CKT 143 any time the ignition switch is in the RUN or ACCY position. Voltage is also applied through a resistor in the switch to terminal D through CKT 113 and terminal E through CKT 112.

In the HI position of the wiper switch, battery voltage is applied at terminals B, C, D and E of the wiper motor assembly through CKTs 143, 92, 113 and 112.

When the wiper switch is moved to MIST and released, the wipers make one sweep at low speed and return to park. The circuit operation is the same as that of low speed. If the wiper switch is held in MIST, the wipers will continue to operate until the switch is released. In the MIST position of the wiper switch, battery voltage is applied to the wiper motor connector at terminal B through CKT 143 any time the ignition switch is in the RUN or ACCY position and terminal E through CKT 112. Voltage is also applied through a resistor in the switch to terminal D through CKT 113.

When the washer switch is pushed, battery voltage is applied to terminal D of the wiper motor assembly through CKT 113. The wiper motor has voltage applied to it automatically by the wiper motor cover circuit board and operates at low speed during the wash cycle and then for 2 sweeps after the wash cycle is complete. If the wipers had been in DELAY, LO, or HI, they would return to that operation after the wash cycle.