Infiniti FX35 / FX45. Manual - part 973

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FRONT WIPER AND WASHER SYSTEM

Terminal and Reference Value for IPDM E/R

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How to Proceed with Trouble Diagnosis

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1.

Confirm the symptoms and customer complaint.

2.

Understand operation description and function description. Refer to 

WW-4, "System Description"

.

3.

Perform the Preliminary Check. Refer to 

WW-14, "Preliminary Check"

.

4.

Check symptom and repair or replace the cause of malfunction.

5.

Does the front wiper and washer operate normally? If YES, GO TO 6. If NO, GO TO 4.

6.

INSPECTION END

Preliminary Check

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CHECK POWER SUPPLY AND GROUND CIRCUIT

1.

CHECK FUSE

Check for blown fuses.

Refer to 

WW-8, "Wiring Diagram - WIPER -"

.

OK or NG

OK

>> GO TO 2

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, Refer to 

PG-

3, "Schematic"

.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

21

P

Low speed signal

ON

Wiper switch

OFF

Approx. 0 V

LOW

Battery voltage

31

PU

High speed signal

ON

Wiper switch

OFF

Approx. 0 V

HI

Battery voltage

32

L

Wiper auto - stop signal

ON

Wiper operating

Battery voltage

Wiper stopped

Approx. 0 V

38

B

Ground

ON

—

Approx. 0 V

44

OR

Front and rear washer pump 
power supply 

ON

—

Battery voltage

48

L

CAN-H

—

—

—

49

R

CAN-L

—

—

—

60

B

Ground

ON

—

Approx. 0 V

Unit

Power source

Fuse and fusible link No.

Front and Rear washer pump

Ignition switch ON or START

84

Front wiper motor, front wiper relay, front wiper HI relay

Battery

73

BCM

Battery

M

22

Ignition switch ON or START

1

FRONT WIPER AND WASHER SYSTEM

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3.

Check voltage between BCM harness connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

CONSULT-III Functions (BCM)

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CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.

WORK SUPPORT

Display Item List

DATA MONITOR

Display Item List

(+)

(-)

Ignition switch position

BCM connector

Terminal

OFF

ON

M3

38

Ground

Approx. 0 V

Battery voltage

M4

42

Battery voltage

Battery voltage

55

Battery voltage

Battery voltage

PKIA7520E

BCM connector

Terminal

Ground

Continuity

M4

49

Yes

52

SKIA5294E

BCM diagnosis position

Diagnosis mode

Description

WIPER

WORK SUPPORT

Changes the setting for each function.

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

Device operation can be checked by applying a drive signal to device.

BCM

SELF-DIAG RESULTS

BCM performs self-diagnosis of CAN communication.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication can be read.

Item

Description

CONSULT-III

Factory setting

WIPER SPEED 

SETTING

Vehicle speed sousing type wiper control mode can be changed in this mode. 
Vehicle speed sousing type wiper control mode between two ON/OFF.

ON

×

OFF

—

Monitor item 

Contents

IGN ON SW

“ON/OFF”

Displays status (ignition switch IGN position: ON/other: OFF) of ignition switch judged from the 
ignition switch signal.

IGN SW CAN

“ON/OFF”

Displays status (ignition switch IGN position: ON/other: OFF) of ignition switch judged from the 
ignition switch signal (CAN communication lines).

FR WIPER HI

“ON/OFF”

Displays status (front wiper switch high position: ON/other: OFF) of front wiper high switch 
judged from the front wiper switch signal.

FR WIPER LOW

“ON/OFF”

Displays status (front wiper switch low position: ON/other: OFF) of front wiper low switch 
judged from the front wiper switch signal.

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< SERVICE INFORMATION >

FRONT WIPER AND WASHER SYSTEM

NOTE:

This item is displayed, but cannot be monitored.

ACTIVE TEST

Display Item List

CONSULT-III Functions (IPDM E/R)

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CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.

DATA MONITOR

All Signals, Main Signals, Selection From Menu

NOTE:
Perform monitoring of IPDM E/R data with ignition switch ON. When ignition switch is at ACC, the display may
not be correct.

ACTIVE TEST

FR WIPER INT

“ON/OFF”

Displays status (front wiper switch intermittent position: ON/other: OFF) of front wiper intermit-
tent switch judged from the front wiper switch signal.

FR WASHER SW

“ON/OFF”

Displays status (front washer switch ON position: ON/other: OFF) of front washer switch 
judged from the front wiper switch signal.

INT VOLUME

“1 - 7”

Displays status (wiper intermittent dial position setting 1- 7) of intermittent volume switch 
judged from the front wiper switch signal.

FR WIPER STOP

“ON/OFF”

Displays status (front wiper stop position: ON/move: OFF) of front wiper motor stop judged 
from the front wiper auto stop signal.

VEHICLE SPEED

 “km/h”

Displays status vehicle speed as judged from vehicle speed signal.

RR WIPER ON 

“OFF”

Displays status (rear wiper switch ON position: ON/other: OFF) of rear wiper switch judged 
from the rear wiper switch signal.

RR WIPER INT

“OFF”

Displays status (rear wiper switch intermittent position: ON/other: OFF) of rear wiper intermit-
tent switch judged from the rear wiper switch signal.

RR WASHER SW

“OFF”

Displays status (rear washer switch ON position: ON/other: OFF) of rear washer switch judged 
from the rear wiper switch signal.

RR WIPER STOP

“OFF”

Displays status (rear wiper stop position: OFF/move: ON) of rear wiper motor stop judged from 
the rear wiper auto stop signal.

H/L WASH SW

 NOTE

“ON/OFF”

—

Monitor item 

Contents

Test item

Display on CONSULT-III screen

Description

Front wiper output

FR WIPER

With a certain operation (OFF, HI, LO, INT), front wiper can be operated.

Rear wiper output

RR WIPER

Rear wiper can be operated by any ON-OFF operation

Diagnosis Mode

Description

SELF-DIAG RESULTS

Refer to 

PG-18, "CONSULT-III Function (IPDM E/R)"

.

DATA MONITOR

The input/output data of IPDM E/R is displayed in real time.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication can be read.

ACTIVE TEST

IPDM E/R sends a drive signal to electronic components to check their operation.

Item name

CONSULT-III 

screen display

Display or unit

Monitor item selection

Description

ALL

SIGNALS

MAIN 

SIGNALS

SELECTION 

FROM MENU

FR wiper request

FR WIP REQ

STOP/LOW/HI

×

×

×

Signal status input from BCM

Wiper auto stop

WIP AUTO STOP

ACT P/STOP P

×

×

×

Output status of IPDM E/R

Wiper protection

WIP PROT

OFF/BLOCK

×

×

×

Control status of IPDM E/R

FRONT WIPER AND WASHER SYSTEM

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Front Wiper Does Not Operate

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CAUTION:

During IPDM E/R fail-safe control, front wipers may not operate. Refer to 

PG-17, "System Description"

in “PG IPDM E/R” to make sure that it is not in fail-safe status.

1.

ACTIVE TEST

With CONSULT-III

1.

Select “FRONT WIPER” of IPDM E/R active test item.

2.

With operating the test item, check that front wiper “LO” and “HI” operation.

Without CONSULT-III

Start up auto active test. Refer to 

PG-20, "Auto Active Test"

.

Does front wiper operate normally?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK FRONT WIPER CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and front wiper motor connector.

3.

Check continuity between IPDM E/R harness connector and
front wiper motor harness connector.

4.

Check continuity between IPDM E/R harness connector and
Ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between front wiper motor harness connector and
ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

4.

CHECK IPDM E/R

Test item

CONSULT-III screen display

Description

Front wiper (HI, LO) output

FR WIPER

With a certain operation (OFF, HI ON, LO ON), front wiper relay (Lo, Hi) 
can be operated.

IPDM E/R

Front wiper motor

Continuity

Connector

Terminal

Connector

Terminal

E7

21

E57

1

Yes

31

4

IPDM E/R connector

Terminal

Ground

Continuity

E7

21

No

31

PKIA7650E

2 – Ground

: Continuity should exist.

PKIA5193E