Nissan Note E12. Manual - part 689

COMPONENT PARTS

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< SYSTEM DESCRIPTION >

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No.

Component

Function

1.

BCM

• Monitors combination switch status by performing the combination switch reading function.
• Sends front wiper relay and front wiper high relay ON signals to IPDM E/R.

2.

IPDM E/R

• Controls front wiper relay and front wiper high relay.
• Performs the auto stop control of the front wiper.

3.

Front and rear washer motor

• Washer fluid sprayed according to washer switch states.
• Combination switch operates front washer or rear washer by changing voltage polarity to be sup-

plied to washer pump.

4.

Front wiper motor

• Drives windshield wipers in HI or LO mode.
• Sends wiper stop signal to IPDM E/R.

5.

Combination switch
(Wiper and washer switch)

• Provides input for wiper and washer control to BCM.
• Refer  to 

WW-8, "FRONT WIPER AND WASHER SYSTEM : System Description"

 for more infor-

mation.

6.

Rear wiper motor

• BCM controls rear wiper operation.
• Sends wiper stop signal to BCM.

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< SYSTEM DESCRIPTION >

SYSTEM

SYSTEM

FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM : System Diagram

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FRONT WIPER AND WASHER SYSTEM : System Description

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FRONT WIPER CONTROL (BASIC)

1. BCM detects the combination switch position by the combination switch reading function.

2. BCM transmits the front wiper request signal to the IPDM E/R using CAN communication.

3. IPDM E/R controls the integrated front wiper relay and front wiper high relay based on the status of the

front wiper request signal.

4. IPDM E/R provides power to operate the front wiper motor.

LOW SPEED OPERATION

1. Ignition switch ON.

2. Front wiper switch in LO or MIST position.

3. BCM reads the combination switch position and transmits the front wiper request signal (LO) to IPDM E/R

using CAN communication.

4. IPDM E/R turns ON the front wiper relay.

HIGH SPEED OPERATION

1. Ignition switch ON.

2. Front wiper switch in HI.

3. BCM reads the combination switch position and transmits the front wiper request signal (HI) to IPDM E/R

using CAN communication.

4. IPDM E/R turns ON the front wiper relay and the front wiper high relay.

INTERMITTENT OPERATION

1. Ignition switch ON.

2. Front wiper switch INT.

3. BCM reads the combination switch position. BCM calculates the delay interval based on the table below

and then transmits the front wiper request signal (INT) to IPDM E/R using CAN communication.

4. IPDM E/R turns ON the front wiper relay only once.

5. BCM detects stop position of the front wiper motor based on the front wiper stop position signal received

from the IPDM E/R.

6. BCM transmits the front wiper request signal (INT) again after the delay interval.

AWLIA2154GB

SYSTEM

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< SYSTEM DESCRIPTION >

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AUTO STOP OPERATION

1. Front wiper switch is turned OFF.

2. BCM monitors wiper switch position by combination switch reading position function.

3. BCM stops transmitting the front wiper request signal to the IPDM E/R.

4. IPDM E/R detects the front wiper auto stop signal from the position of the front wiper motor (stop position/

except stop position).

5. When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front

wiper motor returns to the stop position.

6. IPDM E/R turns the front wiper relay OFF when the front wiper motor has reached the stop position.

MIST OPERATION

1. Ignition switch ON.

2. Front washer switch in OFF position.

3. Front wiper switch in MIST position.

4. BCM reads the combination switch position and transmits the front wiper request signal (LO) to IPDM E/R

using CAN communication.

5. IPDM E/R turns ON the front wiper relay.

6. The front wiper operates once after the front washer operation.

WIPER/WASHER OPERATION

1. Ignition switch ON.

JPLIA0094GB

Intermittent switch position

Length of delay

Delay interval (s)

7

Short

↑

↓

Long

0.4

6

1

5

2

4

3

3

5

2

10

1

16

JPLIA0095GB

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< SYSTEM DESCRIPTION >

SYSTEM

2. Front washer switch ON.

3. The front washer switch provides ground for the front and rear washer motor.

4. BCM reads the combination switch position and transmits the front wiper request signal (LO) to IPDM E/R

using CAN communication.

5. BCM transmits the front wiper request signal (LO) to IPDM E/R using CAN communication.

6. IPDM E/R turns ON the front wiper relay.

7. The front wiper operates.

NOTE:

BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 3 times after

front washer switch OFF is detected.

FRONT WIPER AND WASHER SYSTEM : Circuit Diagram

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ALLIA1298GB