Nissan Qashqai (2007-2010). Manual — part 1430

REAR WIPER AND WASHER SYSTEM

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REAR WIPER AND WASHER SYSTEM

System Diagram

INFOID:0000000000896810

System Description

INFOID:0000000000896811

OUTLINE

The rear wiper is controlled by each function of BCM and IPDM E/R.

Control by BCM

• Combination switch reading function
• Rear wiper control function

Control by IPDM E/R

• Reverse-linked rear wiper function

REAR WIPER BASIC OPERATION

• BCM detects the combination switch condition by the combination switch reading function.
• BCM controls the rear wiper to start or stop.

REAR WIPER ON OPERATION

• BCM supplies power to the rear wiper motor according to the rear wiper ON operating condition.

Rear wiper ON operating condition

- Ignition switch ON
- Rear wiper switch ON

REAR WIPER INT OPERATION LINKED WITH VEHICLE SPEED

• BCM supplies power to the rear wiper motor according to the INT operating condition.

Rear wiper INT operating condition

- Ignition switch ON
- Rear wiper switch INT
• BCM controls the rear wiper to operate once.
• BCM detects the rear wiper motor stopping position.
• BCM supplies power to the rear wiper motor after an intermittent from the stop of the rear wiper motor.

JPLIA0162GB

JPLIA0165GB

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REAR WIPER AND WASHER SYSTEM

REAR WIPER AUTO STOP OPERATION

• BCM stops supplying power to the rear wiper motor when the rear wiper switch is turned OFF.
• BCM reads an auto stop signal from the rear wiper motor to detect a rear wiper motor position.
• When the rear wiper motor is at other than the stopping position, BCM continues to supply power to the rear

wiper motor until it returns to the stopping position.

NOTE:
BCM stops supplying power to the rear wiper motor when the ignition switch is turned OFF.

REAR WIPER OPERATION LINKED WITH WASHER

• BCM supplies power to the rear wiper motor according to the washer linked operating condition of rear

wiper. When the rear washer switch is turned OFF, BCM controls rear wiper to operate approximately three
times.

Washer linked operating condition of rear wiper

- Ignition switch ON
- Rear washer switch ON (0.4 second or more)
• Washer pump becomes grounded through the combination switch when the rear washer switch is turned

ON.

REAR WIPER OPERATION LINKED WITH REVERSE

• BCM controls rear wiper to operate once according to the conditions of rear wiper operation linked with

reverse.

Condition of rear wiper operation linked with reverse

- Ignition switch ON
- Front wiper switch: LO, HI, AUTO

*1

, or INT

*2

NOTE:
*

1

: With light and rain sensor

*

2

: Without light and rain sensor

- Rear wiper switch OFF
- Selector lever “R”.
• IPDM E/R transmits a reverse switch signal to BCM through the CAN communication line when the selector

lever is shifted to the “R”.

• BCM supplies power to the rear wiper motor when receiving the reverse switch signal.

REAR WIPER DROP WIPE OPERATION

• BCM controls the rear wiper to operate once according to the rear wiper drop wipe operating condition.

Rear wiper drop wipe operating condition

- Ignition switch ON
- Rear wiper switch OFF
- Rear washer switch OFF
• BCM controls the rear wiper so that it operates once time approximately three seconds later after the washer

interlocking operation of the rear wiper.

REAR WIPER FAIL

−

SAFE OPERATION

JPLIA0166GB

REAR WIPER AND WASHER SYSTEM

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BCM performs the fail-safe function when the rear wiper auto stop circuit is malfunctioning. Refer to

BCS-59,

"Fail Safe"

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Component Parts Location

INFOID:0000000000896812

Component Description

INFOID:0000000000896819

1.

Combination switch

2.

Combination meter

3.

BCM

4.

Washer pump

5.

IPDM E/R

6.

Rear wiper motor

A.

Over the glove box

B.

Radiator core support (RH)

C.

Engine room (left side)

D.

Back door trim finisher lower inside

JPLIA0186ZZ

Part

Description

BCM

• Judges each switch status by the combination switch reading function.
• Supplies power to the rear wiper motor.
• Performs the auto stop control of the rear wiper.

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REAR WIPER AND WASHER SYSTEM

IPDM E/R

Transmits the reverse switch signal to BCM with CAN communication.

Combination switch
(Wiper & washer switch)

Refer to

BCS-9, "System Diagram"

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Part

Description