Mazda 2007 CX-9, Особенности сервиса

Страница: 506 / 614

WIPER/WASHER SYSTEM
09-19–12
AUTO WIPER SYSTEM OPERATION
id091900101300
1. The rain sensor installed in the windshield detects rainfall amount when the wiper and washer switch is turned
to the AUTO position.
2. The detected rainfall amount is converted to an electronic signal and transmitted to the auto light/wiper control
module as a windshield wiper operation control signal.
3. When the microcomputer in the auto light/wiper control module receives the control signal, the wiper relay turns
on.
4. When the transistor turns on, the windshield wiper relay turns on.
5. When the windshield wiper relay turns on, the current flows to the windshield wiper motor, and the wiper
operates at low speed.
Intermittent Operation
•
If the windshield wipers are stopped and the rain sensor detects a specified amount of rainfall, the wipers are
operated at low speed. The interval timing is adjusted according to the amount of rainfall detected.
Low Speed Operation
•
If the windshield wipers are operating intermittently and the rain sensor detects an amount of rainfall specific to
wiper operation greater than low speed, but less than high speed, the wipers are operated continuously at low
speed.
High Speed Operation
•
If the windshield wipers are operating at low speed or stopped and the rain sensor detects an amount of rainfall
specific to high speed operation or greater, the wipers are operated two times at high speed. If the rain sensor
receives a signal for high speed operation after the wipers are operated at high speed twice, the high speed
operation is continued.
M M
-2
-1
0
1
2
IG 2
RAIN SENSOR
MICRO-
COMPUTER
WINDSHIELD WASHER
MOTOR
WINDSHIELD WIPER
MOTOR
WINDSHIELD
WIPER
RELAY
WINDSHIELD WASHER
SWITCH
WINDSHIELD WIPER AND
WASHER SWITCH
AUTO LIGHT/WIPER
CONTROL MODULE
OFF
OFF
AUTO
AUTO
1
1
2
2
ac9uun00000152
3423-1U-06H(09-19).fm 12 ページ ２００６年１１月２２日 水曜日 午後３時４８分