Intermittent Operation

When the front wiper/washer switch in the INT position, battery voltage is applied through the WIPER fuse to the following components in the intermittent controller:
^ The coil of an electronic relay
^ A condenser

The condenser charges to battery voltage and the relay energizes as soon as power is applied. When the switch in the energized relay closes, voltage is applied through the BLU wire to the front wiper motor LOW side. The wipers begin to operate at LOW speed.

By the time the wiper motor makes 1 complete rotation, and the front wiper motor pawl and switch has engaged, the condenser in the intermittent controller has discharged. The discharge in the condenser causes the intermittent controller relay coil to de-energize, and the switch in the relay to open. The current flow to the wipers is then cut off until the condenser is recharged. Intermittent wiper operation occurs through the charging and discharging of the intermittent controller condenser.