Nissan Note — работа системы стеклоочистителей и омывателей: основные функции [9/92]

FRONT WIPER AND WASHER SYSTEM

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Sample Operation: (When Wiper Switch is Turned to LOW Position)

● When wiper switch is turned to LOW position, front wiper LOW contact in combination switch turns ON. At

this time if OUTPUT 1 transistor is activated, BCM detects that voltage changes in INPUT 3.

● When BCM detects that voltage changes in INPUT 3 while OUTPUT 1 transistor is ON, it judges that front

wiper switch is in LOW position. Then BCM sends front wiper request signal (LO) to IPDM E/R using CAN

communication.

● If BCM detects that voltage changes in INPUT 3 when OUTPUT 1 transistor is activated again, it recog-

nizes that wiper switch is still in LOW position.

NOTE:

Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON,

electrical loads are activated with time delay. But this time delay is so short that it cannot be detected by

human senses.

Operation Mode

Combination switch reading function has operation modes shown below.

1. Normal status

● When BCM is not in sleep status, output terminals (OUTPUT 1-5) send out ON signal every 10 ms.

2. Sleep status

MKIB2225E