Nissan X-Trail 32. Manual - part 2227

SYSTEM

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< SYSTEM DESCRIPTION >

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

washer linked operating condition of the front wiper.

• BCM transmits the front wiper request signal (LOW) 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 (LOW).
• The washer pump is grounded through the combination switch with the front washer switch ON.

FRONT WIPER DROP WIPE OPERATION

• BCM controls the front wiper to operate once according to the conditions of front wiper drop wipe operation.

Front wiper drop wipe operating condition

- Ignition switch ON
- Front wiper switch OFF
- Front washer switch OFF
• BCM transmits the front wiper request signal (LOW) to IPDM E/R via CAN communication so that the front

wiper operates once at 3 seconds after front wiper operation linked with washer.

NOTE:
Factory setting of the front wiper drop wipe operation is ON. Front wiper drop wipe operation can be set to ON
or OFF using CONSULT. Refer to 

WW-29, "WIPER : CONSULT Function - WIPER"

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FRONT WIPER SERVICE POSITION OPERATION

• Front wiper operates at LO and stops so that front wiper can be locked back without interfere the hood.
• BCM transmits the front wiper request signal (LOW) to IPDM E/R via CAN communication for 0.6 seconds

according to the conditions of front wiper service position operation.

Front wiper service position operation conditions (Within 1 minute after turning ignition switch Off)

- Front wiper switch is OFF
- Front wiper is in stop position
- Front wiper switch MIST is operated 2 times (Within 0.47 second)

Front wiper service position operation conditions (During ignition switch is On)

- Front wiper switch is OFF
- Front wiper is in stop position
- Vehicle speed is less than 4 km/h
- Front wiper switch MIST is operated 2 times (Within 0.47 second)
• After the front wiper LO operation, IPDM E/R receives the front wiper request signal (STOP) from BCM and

then stops the front wiper. 

• Front wiper returns to stop position when front wiper switch is operated. (If 1 minute or more is passed after

turning ignition switch OFF, front wiper returns to stop position when ignition switch is turned ON and front
wiper switch is operated.)

FRONT WIPER AND WASHER SYSTEM (WITH LIGHT & RAIN SENSOR)  : Circuit 

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SYSTEM

Diagram

INFOID:0000000010785413

FRONT WIPER AND WASHER SYSTEM (WITH LIGHT & RAIN SENSOR)  : Fail-safe

INFOID:0000000010785414

IPDM E/R

If No CAN Communication Is Available With BCM

JMLIA5502GB

SYSTEM

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< SYSTEM DESCRIPTION >

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When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.

Front Wiper Protection Function

IPDM E/R detects front wiper stop position by front wiper stop position signal.
When front wiper stop position signal is in the condition listed below while the front wiper is operating, IPDM E/
R activates the fail-safe.

BCM

Fail-safe Control By Light & Rain Sensor Malfunction

BCM detects the light & rain sensor serial link error and the light & rain sensor malfunction.
BCM controls the following fail-safe when light & rain sensor has a malfunction.
• Front wiper switch AUTO and sensing rain drop: The condition just before the activation of fail-safe is main-

tained until the front wiper switch is turned OFF.

• Front wiper switch AUTO and not sensing rain drop: Front wiper is LO operation until the front wiper switch is

turned off.

FRONT WIPER AND WASHER SYSTEM (WITHOUT LIGHT & RAIN SENSOR) 

FRONT WIPER AND WASHER SYSTEM (WITHOUT LIGHT & RAIN SENSOR)  : Sys-
tem Description

INFOID:0000000010785415

SYSTEM DIAGRAM

OUTLINE

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

Control by BCM

• Combination switch reading function
• Front wiper control function

Control by IPDM E/R

• Front wiper control function
• Relay control function

Control part

Fail-safe operation

Front wiper motor

• The status just before activation of fail-safe control is maintained until the ignition switch is turned 

OFF while the front wiper is operating at LO or HI speed.

• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe control is ac-

tivated while the front wiper is set in the AUTO mode and the front wiper motor is operating.

Ignition switch

Front wiper switch

Front wiper stop position signal

Fail-safe

ON

OFF

The signal does not change from the battery 
voltage for 10 seconds.

Stops front wiper power supply 
for 20 seconds

Except OFF

The signal does not change for 10 seconds.

JMLIA5154GB

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< SYSTEM DESCRIPTION >

SYSTEM

FRONT WIPER BASIC OPERATION

• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits the front wiper request signal to IPDM E/R via CAN communication depending on each oper-

ating condition of the front wiper.

• IPDM E/R turns ON/OFF the integrated front wiper relay and the front wiper HI/LO relay according to the

front wiper request signal. IPDM E/R provides the power supply to operate the front wiper HI/LO operation.

FRONT WIPER LO OPERATION

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

front wiper LO operating condition.

Front wiper LO operating condition

- Ignition switch ON
- Front wiper switch LO or front wiper switch MIST (while pressing)
• IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LOW).

FRONT WIPER HI OPERATION

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

front wiper HI operating condition.

Front wiper HI operating condition

- Ignition switch ON
- Front wiper switch HI
• IPDM E/R turns ON the integrated front wiper relay and the front wiper HI/LO relay according to the front

wiper request signal (HIGH).

FRONT WIPER INT OPERATION

• BCM transmits the front wiper request signal (LOW) to IPDM E/R via CAN communication depending on the

front wiper INT operating condition and intermittent operation delay interval according to the wiper volume
dial position.

Front wiper INT operating condition

- Ignition switch ON
- Front wiper switch INT
• IPDM E/R turns ON the integrated front wiper relay so that the front wiper is operated only once according to

the front wiper request signal (LOW) and front wiper request signal (RETURN).

• BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop

position signal received from IPDM E/R via CAN communication.

• BCM transmits the front wiper request signal (LOW) again after the intermittent operation delay interval.
NOTE:
Front wiper INT operation can be set to operation linked or not linked with vehicle speed using CONSULT.
Refer to 

WW-29, "WIPER : CONSULT Function - WIPER"

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Front wiper intermittent operation with vehicle speed

• BCM calculates the intermittent operation delay interval from the following
- Vehicle speed signal 
- Wiper volume dial position

Intermittent operation delay Interval

Unit: Second

*: When operation setting is not linked with vehicle speed. 

FRONT WIPER AUTO STOP OPERATION

Wiper volume dial 

position

Intermittent 

operation 

interval

Vehicle speed

0 – 5 km/h

(0 – 3.1 MPH)

5 – 65 km/h

(3.1 – 40.4 MPH)*

65 km/h 

(40.4 MPH) or more

1

Long

↑

↓

Short

62.5

25

15

2

31.25

12.5

7.5

3

18.75

7.5

4.5

4

12.5

5

3

5

6.25

2.5

1.5