Infiniti FX35, FX50 (S51). Manual - part 1947

FRONT WIPER AND WASHER SYSTEM

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• 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.

NOTE:
• BCM stops the transmitting of the front wiper request signal when the ignition switch is OFF.
• IPDM E/R turns the front wiper relay OFF when the ignition switch is OFF.

FRONT WIPER OPERATION LINKED WITH WASHER

• BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the

washer linked operating condition of the front wiper.

• BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 2 times

when the front washer switch OFF is detected.

Washer linked operating condition of front wiper

- Ignition switch ON
- Front washer switch ON (0.4 second or more)
• IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
• The washer pump is grounded through the combination switch with the front washer switch ON.

FRONT WIPER FAIL-SAFE OPERATION

IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to

PCS-30, "Fail-safe"

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FRONT WIPER AND WASHER SYSTEM

WITHOUT RAIN SENSOR : Component Parts Location

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WITHOUT RAIN SENSOR : Component Description

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1.

Combination switch

2.

BCM

3.

IPDM E/R

4.

Washer pump

5.

Front wiper motor

6.

Unified meter and A/C amp.

A.

Dash side lower (Passenger side)

B.

Engine room (right side)

C.

Radiator core support (RH)

D.

Cowl top, left side of engine room

E.

Behind cluster lid C

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Part

Description

BCM

• Judges each switch status by the combination switch reading function.
• Requests (with CAN communication) the front wiper relay and the front wiper high relay ON to 

IPDM E/R.

IPDM E/R

• Controls the integrated relay according to the request (with CAN communication) from BCM.
• Performs the auto stop control of the front wiper.

FRONT WIPER AND WASHER SYSTEM

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Combination switch
(Wiper & washer switch)

Refer to 

BCS-8, "System Description"

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Unified meter and A/C amp.

Transmits the vehicle speed signal to BCM with CAN communication.

Part

Description

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REAR WIPER AND WASHER SYSTEM

REAR WIPER AND WASHER SYSTEM

System Diagram

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System Description

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OUTLINE

The rear wiper is controlled by each function of BCM.

Control by BCM

• Combination switch reading function
• Rear wiper control 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

• 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.

REAR WIPER AUTO STOP OPERATION

• BCM stops supplying power to the rear wiper motor when the rear wiper switch is turned OFF.

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