Mazda 1996 626 Service Manual page 113

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2. Autostop
While the windshield wiper motor is operating, the autostop switch is on. If the wiper switch is moved
to OFF, current continues to flow through the autostop switch, to the intermittent wiper relay, to the
one-touch switch, to the windshield wiper motor, and then to ground. Thus, the wipers keep moving
until they reach the park position. When the wipers reach the park position, the autostop switch turns
off and the wipers stop.
3. One-touch wiper
• When the windshield wiper and washer switch is pushed, the one-touch switch turns on and current
flows through the one-touch switch, to the windshield wiper motor, and then to ground. The wipers
operate at high speed for one cycle.
• When the windshield wiper and washer switch is pushed and held, the wipers cycle at high speed.
When the switch is released, the autostop function is activated and the wipers stop at the park posi­
tion.
4. Intermittent wiper
• When the wiper switch is moved to INT, the intermittent wiper relay is activated, and current flows
through the wiper switch, to the intermittent wiper relay, to the one-touch switch, to the windshield
wiper motor, and then to ground. The wipers operate at low speed. When the intermittent wiper
relay internal circuit turns off the relay, the autostop function is activated, and the wipers stop at the
park position.
• After the wipers stop, discharge from the capacitor inside the relay turns the intermittent wiper relay
on again, and current flows to operate the wipers again.
5. Washer
• When the windshield wiper and washer switch is pulled, the washer switch is turned on. Current
flows through the washer switch, to the windshield washer motor, and then to ground. The wind­
shield washer motor is activated.
• Current also flows to the intermittent wiper relay, turning it on, and continues through the one-touch
switch, to the windshield wiper motor, and then to ground. The wipers operate at low speed.
• When the washer switch is ON for more than 1.5 sec., power is stored in the condenser inside of the
intermittent wiper relay and so the windshield wiper motor continues to operate for 2.6 sec. after the
switch is turned OFF. Then the windshield wiper motor returns to the park position due to the
autostop function.
D™4
WINDSHIELD WIPER AND WASHER