Nissan Murano Z50 (2003 year). Manual - part 285

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FRONT WIPER AND WASHER SYSTEM

Revision; 2004 April

2003 Murano

Schematic

AKS004MV

TKWA0781E

FRONT WIPER AND WASHER SYSTEM

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Wiring Diagram — WIPER —

AKS004MW

TKWA0782E

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FRONT WIPER AND WASHER SYSTEM

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TKWA0783E

FRONT WIPER AND WASHER SYSTEM

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TKWA0784E

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FRONT WIPER AND WASHER SYSTEM

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Terminals and Reference Values for BCM

AKS004XO

Terminals and Reference Values for IPDM E/R

AKS004XP

How to Proceed With Trouble Diagnosis

AKS004MZ

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-37, "Preliminary Check"

 .

4.

Check symptom and repair or replace the cause of malfunction.

5.

Does the warning chime operate normally? If YES: GO TO 6. If NO: GO TO 4.

6.

INSPECTION END

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value 

Igni-

tion 

switch

Operation or condition

7 

W/B

Battery power supply

OFF

—

Battery voltage

8

B

Ground

ON

—

Approx. 0V

35 

R

Ignition switch (ON)

ON

—

Battery voltage

40

R/B

Combination switch output 2

ON

Lighting switch and wiper switch 

OFF

41 

R/G

Combination switch output 3

42 

P/L

Combination switch output 4

43 

R

Combination switch output 5

47 

R/W

Combination switch output 1

48 

L/W

Combination switch input 1

ON

Lighting switch and wiper switch 

OFF

4.5V or more

49 

G/B

Combination switch input 2

ON

50 

LG/R

Combination switch input 3

ON

51

G/Y

Combination switch input 4

ON

52 

LG/B

Combination switch input 5

ON

70 L

CAN

−

 

H

—

—

—

71

Y

CAN

−

 

L

—

—

—

72 O

K-LINE

—

—

—

SKIA1119J

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

14 B

Ground

ON

—

Approx. 

0V

18

R/L

Front and rear washer 
motor power supply 

ON

—

Battery voltage

30 

L/B

High speed signal

ON

Front wiper 

switch

OFF

Approx. 0V

HI

Battery voltage

31

L

Low speed signal

ON

Front wiper 

switch

OFF

Approx. 0V

LO

Battery voltage

38 L/Y

Front wiper auto stop sig-
nal

ON

Front wiper operating

Battery voltage

Front wiper stopped

Approx. 0V

45

B

Ground

ON

—

Approx. 0V

48 L

CAN

−

 

H

—

—

—

49 Y

CAN

−

 

L

—

—

—

FRONT WIPER AND WASHER SYSTEM

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Preliminary Check

AKS004N0

CHECK POWER SUPPLY AND GROUND CIRCUIT

Inspection Procedure

1. 

CHECK FUSE

●

Check if wiper and washer fuse is blown.

Refer to 

WW-33, "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, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK POWER SUPPLY CIRCUIT 

1.

Disconnect BCM connector.

2.

Check voltage between BCM connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness for open or short between BCM and fuse.

3. 

CHECK GROUND CIRCUIT 

Check continuity between BCM and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Check harness ground circuit.

CONSULT-II Functions

AKS004N1

CONSULT-II performs the following functions communicating with BCM.

Unit

Power source

Fuse No.

Front and rear washer motor

Ignition ON or START

87

Front wiper motor, front wiper relay, front wiper high relay

Battery

74

Front wiper relay, front wiper high relay

Ignition ON or START

80

Terminals

Ignition switch position

(+)

(-)

OFF

ON

Connector

Terminal 

(Wire color)

E118

7 (W/B)

Ground

Battery voltage

Battery voltage

M35

35 (R)

0V

Battery voltage

SKIA3195E

Terminals

Continuity

Connector

Terminal (Wire color)

Ground

Yes

E118

8 (B)

SKIA3193E

BCM diagnosis position

Check item, Diagnosis mode

Description

Wiper

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

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

BCM C/U

CAN DIAG SUPPORT MNTR

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

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CONSULT-II OPERATION

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication. 

1.

With ignition switch OFF, connect CONSULT-II and CONSULT-II
CONVERTER to data link connector, then turn ignition switch
ON.

2.

Touch “START (NISSAN BASED VHCL)”.

3.

Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, refer to 

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

 .

4.

Touch “WIPER”.

PBIB1300E

SKIA3098E

SKIA6338E

SKIA1922E

FRONT WIPER AND WASHER SYSTEM

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DATA MONITOR
Operation Procedure

1.

Touch “WIPER” on “SELECT TEST ITEM” screen.

2.

Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.

3.

Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “DATA MONITOR” screen.

4.

Touch “START”.

5.

When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is
selected, all the items will be monitored.

6.

Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.

Display Item List

ACTIVE TEST
Operation Procedure

1.

Touch “WIPERS” on “SELECT TEST ITEM” screen.

2.

Touch “ACTIVE TEST” on the “SELECT DIAG MODE” screen.

3.

Touch item to be tested and check operation of the selected item.

4.

During the operation check, touching “BACK” deactivates the operation.

Display Item List

All signals

Monitors all the items.

Selection from menu

Selects and monitors the individual item selected.

Monitor item name “operation or 

unit”

Contents

IGN ON SW

“ON/OFF”

Displays “IGN Position (ON)/OFF, ACC Position (OFF)” status as judged from ignition switch signal.

FR WIPER INT

“ON/OFF”

Displays “Front Wiper INT (ON)/Other (OFF)” status as judged from wiper switch signal.

FR WIPER LOW

“ON/OFF”

Displays “Front Wiper LOW (ON)/Other (OFF)” status as judged from wiper switch signal.

FR WIPER HI

“ON/OFF”

Displays “Front Wiper HI (ON)/Other (OFF)” status as judged from wiper switch signal.

FR WASHER SW

“ON/OFF”

Displays “Front Washer Switch (ON)/Other (OFF)” status as judged from wiper switch signal.

INT VOLUME

(1 - 7)

Displays intermittent operation dial position setting (1 - 7) as judged from wiper switch signal.

VHCL SPEED SEN

“ON/OFF”

Displays “Driving (ON)/Stopped (OFF)” status as judged from vehicle speed signal.

FR WIPER STOP

“ON/OFF”

Displays “Stopped (ON)/Operating (OFF)” status as judged from the auto-stop signal.

RR WIPER INT

“ON/OFF”

Displays “Rear Wiper INT (ON)/Other (OFF)” status as judged from wiper switch signal.

RR WIPER ON

“ON/OFF”

Displays “Rear Wiper (ON)/Other (OFF)” status as judged from wiper switch signal.

RR WASHER SW

“ON/OFF”

Displays “Rear Washer Switch (ON)/Other (OFF)” status as judged from wiper switch signal.

RR WIPER STOP

“ON/OFF”

Displays “Stopped (OFF)/Operating (ON)” status as judged from the auto-stop signal.

Test item

Display on CONSULT-II screen

Description

Front wiper HI output

FR WIPER (HI)

Front wiper HI can be operated by any ON–OFF operation.

Front wiper LO output

FR WIPER (LOW)

Front wiper LO can be operated by any ON-OFF operation.

Front wiper INT output

FR WIPER (INT)

Front wiper INT can be operated by any ON-OFF operation.

Rear wiper output

RR WIPER

Rear wiper can be operated by any ON-OFF operation.

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FRONT WIPER AND WASHER SYSTEM

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Front Wiper Does Not Operate

AKS004N2

1. 

FRONT WIPER ACTIVE TEST

1.

Select “FR WIPER (HI)” or  “FR WIPER (LOW)” during active test. Refer to 

WW-39, "ACTIVE TEST"

 .

2.

Make sure front wiper operation.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 2.

2. 

CHECK FRONT WIPER MOTOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and front wiper motor connec-
tor.

3.

Check continuity between IPDM E/R harness connector E8 ter-
minal 30 (L/B) and front wiper motor harness connector E22 ter-
minal 2 (L/B).

4.

Check continuity between IPDM E/R harness connector E8 ter-
minal 31 (L) and front wiper motor harness connector E22 termi-
nal 3 (L).

OK or NG

OK

>>  GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK FRONT WIPER MOTOR GROUND   

Check continuity between front wiper motor harness connector E22
terminal 1 (B) and ground.

OK or NG

OK

>>  GO TO 4.

NG

>> Repair harness or connector.

Front wiper operation should operate.

Continuity should exist.

Continuity should exist.

SKIA4221E

Continuity should exist.

SKIA4222E

FRONT WIPER AND WASHER SYSTEM

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4. 

CHECK IPDM E/R OUTPUT SIGNAL 

1.

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

2.

Select “FR WIPER (HI)” or “FR WIPER (LOW)” during active
test. Refer to 

WW-39, "ACTIVE TEST"

 . When front wiper relay,

and front wiper HI relay are operating, check voltage between
IPDM E/R harness connector and ground.

OK or NG

OK

>> Replace front wiper motor.

NG

>> Replace IPDM E/R.

5. 

CHECK COMBINATION SWITCH CIRCUIT

Select “BCM” on CONSULT-II. Carry out self-diagnosis of “BCM C/
U”.

Displayed results of self-diagnosis

No malfunction detected>>GO TO 6.
CAN communications or CAN system>>Check  BCM  CAN  commu-

nication system. Refer to 

BCS-34, "CAN Communica-

tion Inspection Using CONSULT-II (Self-Diagnosis)"

 .

OPEN DETECT 1 - 5>>Combination  switch  system  malfunction.

Go to 

LT-257, "Combination Switch Inspection Accord-

ing to Self-Diagnostic Results"

 .

6. 

CHECK COMBINATION SWITCH INPUT SIGNAL 

Select “BCM” on CONSULT-II. With “WIPER” data monitor, make
sure “FR WIPER INT”, “FR WIPER LOW” and “FR WIPER HI” turn
ON-OFF according to operation of wiper switch.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> Replace wiper switch.

Terminals

Voltage

(+)

(-)

Condition

Connector

Terminal

 (Wire color)

E8

30 (L/B)

Ground

Stopped

Approx. 0V

HI operation

Battery voltage

31 (L)

Stopped

Approx. 0V

LO operation

Battery voltage

SKIA4010E

LKIA0073E

When front wiper switch 
is low position

: FR WIPER LOW ON

When front wiper switch 
is HI position

: FR WIPER HI ON

SKIA4223E

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Front Wiper Stop Position Is Incorrect

AKS004N3

1. 

CHECK FRONT WIPER MOTOR AUTO STOP SIGNAL

Select “BCM” on CONSULT-II. With “WIPER” data monitor, make
sure “FR WIPER STOP” turns ON-OFF according to wiper opera-
tion.

OK or NG

OK

>> Replace IPDM E/R.

NG

>> GO TO 2.

2. 

 CHECK FRONT WIPER MOTOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and front wiper motor connec-
tor.

3.

Check continuity between IPDM E/R harness connector E8 ter-
minal 38 (L/Y) and front wiper motor harness connector E22 ter-
minal 4 (L/Y).

OK or NG

OK

>>  GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK FRONT WIPER MOTOR GROUND CIRCUIT 

Check continuity between front wiper motor harness connector E22
terminal 1 (B) and ground.

OK or NG

OK

>>  GO TO 4.

NG

>> Repair harness or connector.

When font wiper switch is 
OFF position

: FR WIPER STOP ON

SKIA4224E

Continuity should exist.

SKIA4225E

Continuity should exist.

SKIA4222E

FRONT WIPER AND WASHER SYSTEM

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4. 

CHECK FRONT WIPER MOTOR CIRCUIT (SHORT CIRCUIT)

Check continuity between front wiper motor harness connector E22
terminal 4 (L/Y) and ground.

OK or NG

OK

>>  GO TO 5.

NG

>> Repair harness or connector.

5. 

CHECK IPDM E/R OUTPUT SIGNAL

1.

Connect IPDM E/R connector.

2.

Turn ignition switch ON.

3.

Check voltage between front wiper motor harness connector
E22 terminal 4 (L/Y) and ground.

OK or NG

OK

>> Replace front wiper motor.

NG

>> Replace IPDM E/R.

Only Front Wiper Low Does Not Operate

AKS004N4

1. 

FRONT WIPER ACTIVE TEST

1.

Select “FR WIPER (LOW)” during active test. Refer to 

WW-39, "ACTIVE TEST"

 .

2.

Make sure front wipers operate in LOW operation mode.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 2.

2. 

CHECK FRONT WIPER MOTOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and front wiper motor connec-
tor.

3.

Check continuity between IPDM E/R harness connector E8 ter-
minal 31 (L) and front wiper motor harness connector E22 termi-
nal 3 (L).

OK or NG

OK

>>  GO TO 3.

NG

>> Repair harness or connector.

Continuity should not exist.

SKIA4227E

Battery voltage should exist.

SKIA4228E

Front wiper LOW operation should operate.

Continuity should exist.

SKIA4229E

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3. 

CHECK IPDM E/R 

1.

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

2.

Select “FR WIPER (LOW)” during active test. Refer to 

WW-39,

"ACTIVE TEST"

 . When front wiper relay are operating, check

voltage between IPDM E/R harness connector E8 terminal 31(L)
and ground.

OK or NG

OK

>> Replace front wiper motor.

NG

>> Replace IPDM E/R.

4. 

CHECK COMBINATION SWITCH CIRCUIT

Select “BCM” on CONSULT-II. Carry out self-diagnosis of “BCM C/
U”.

Displayed results of self-diagnosis

No malfunction detected>>GO TO 5.
CAN communication or CAN system>>Check BCM CAN communi-

cations system. Refer to 

BCS-34, "CAN Communication

Inspection Using CONSULT-II (Self-Diagnosis)"

 .

OPEN DETECT 1 - 5>>Combination  switch  system  malfunction.

Refer to 

LT-257, "Combination Switch Inspection

According to Self-Diagnostic Results"

 .

5. 

CHECK COMBINATION SWITCH INPUT SIGNAL

Select “BCM” on CONSULT-II. With “WIPER” data monitor, make
sure “FR WIPER (LOW)” turns ON-OFF according to operation of
wiper switch.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> Replace wiper switch.

Only Front Wiper Hi Does Not Operate

AKS004N5

1. 

ACTIVE TEST

1.

Select “FR WIPER (HI)” during active test. Refer to 

WW-39, "ACTIVE TEST"

 .

2.

Make sure front wipers operate in HI operation mode.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 2.

Terminals

Voltage

(+)

(-)

Condition

Connector

Terminal 

(Wire color)

E8

31 (L)

Ground

Stopped

Approx. 0V

LOW operation

Battery voltage

SKIA3593E

LKIA0073E

When front wiper switch is 
low position

: FR WIPER LOW ON

SKIA4230E

Front wiper HI operation should operate.

FRONT WIPER AND WASHER SYSTEM

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2. 

CHECK FRONT WIPER MOTOR CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and front wiper motor connec-
tor.

3.

Check continuity between IPDM E/R harness connector E8 ter-
minal 30 (L/B) and front wiper motor harness connector E22 ter-
minal 2 (L/B).

OK or NG

OK

>>  GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK IPDM E/R

1.

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

2.

Select “FR WIPER (HI)” during active test. Refer to 

WW-39,

"ACTIVE TEST"

 . When front wiper relay, and front wiper high

relay are operating, check voltage between IPDM E/R harness
connector E8 terminal 30 (L/B) and ground.

OK or NG

OK

>> Replace front wiper motor.

NG

>> Replace IPDM E/R.

4. 

CHECK COMBINATION SWITCH CIRCUIT

Select “BCM” on CONSULT-II. Carry out self-diagnosis of “BCM C/
U”.
Displayed results of self-diagnosis

No malfunction detected>>GO TO 5.
CAN communication or CAN system>>Check BCM CAN communi-

cations system. Refer to 

BCS-34, "CAN Communication

Inspection Using CONSULT-II (Self-Diagnosis)"

 .

OPEN DETECT 1 - 5>>Combination  switch  system  malfunction.

Refer to 

LT-257, "Combination Switch Inspection

According to Self-Diagnostic Results"

 .

Continuity should exist.

SKIA4231E

Terminals

Voltage

(+)

(-)

Condition

Connector

Terminal 

(Wire color)

E8

30 (L/B)

Ground

Stopped

Approx. 0V

HI operation

Battery voltage

SKIA3172E

LKIA0073E

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5. 

CHECK COMBINATION SWITCH INPUT SIGNAL

Select “BCM” on CONSULT-II. With “WIPER” data monitor, make
sure “FR WIPER (HI)” turns ON-OFF according to operation of wiper
switch.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> Replace wiper switch.

Only Front Wiper Intermittent Does Not Operate

AKS004N6

1. 

CHECK COMBINATION SWITCH INPUT SIGNAL

Select “BCM” on CONSULT-II. With “WIPER” data monitor, make
sure “FR WIPER (INT)” turns ON-OFF according to operation of
wiper switch.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> Replace wiper switch.

Front Wiper Intermittent Operation Switch Position Cannot Be Adjusted

AKS004N7

1. 

CHECK COMBINATION SWITCH INPUT SIGNAL

Select “BCM” on CONSULT-II. With “WIPER” data monitor, make
sure “INT VOLUME” changes in order from 1 to 7 according to oper-
ation of the intermittent switch dial position.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> Replace wiper switch.

Wipers Do Not Wipe When Front Washer Operates

AKS004N8

1. 

CHECK COMBINATION SWITCH INPUT SIGNAL

Select “BCM” on CONSULT-II. With “WIPER” data monitor, make
sure “FR WASHER SW” turns ON-OFF according to operation of
front washer switch.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> Replace wiper switch.

When front wiper switch is 
HI position

: FR WIPER HI ON

SKIA4232E

When front wiper switch is 
INT position

: FR WIPER INT ON

SKIA4233E

SKIA4234E

When front wiper switch is 
WASHER position

: FR WASHER SW ON

SKIA4235E

FRONT WIPER AND WASHER SYSTEM

WW-47

C

D

E

F

G

H

I

J

L

M

A

B

WW

Revision; 2004 April

2003 Murano

Removal and Installation of Front Wiper Arms, Adjustment of Wiper Arms Stop 
Location 

AKS005H6

REMOVAL

1.

Operate wiper motor, and stop it at the auto stop position.

2.

Remove wiper arm caps and mounting nuts, and remove wiper arms from vehicle.

INSTALLATION

1.

Clean up the pivot area as illustrated. This will reduce possibility
of wiper arm looseness.

2.

Prior to wiper arm installation, turn on wiper switch to operate
wiper motor and then turn it “OFF” (auto stop).

3.

Push wiper arm onto pivot shaft, paying attention to blind spline.

4.

Lift the blade up and then set it down onto glass surface to set
the blade center to clearance “L1” & “L2” immediately before
tightening nut.

5.

Eject washer fluid. Turn on wiper switch to operate wiper motor
and then turn it “OFF”.

6.

Ensure that wiper blades stop within clearance “L1” & “L2”.

●

Tighten wiper arm nuts to specified torque.

7.

Attach wiper arm caps.

ADJUSTMENT

Refer to 

WW-47, "INSTALLATION"

Removal and Installation of Front Wiper Motor and Linkage

AKS005H7

REMOVAL

1.

Remove wiper arms. Refer to 

WW-47, "REMOVAL"

2.

Remove cowl top cover. Refer to 

EI-21, "COWL TOP"

    in  “EI”

section.

3.

Remove washer tube.

4.

Disconnect wiper motor connector.

5.

Remove wiper motor and linkage mounting bolts, and remove
wiper motor and linkage.

SEL024J

Clearance “L1”

: 36.6 - 51.6 mm (1.44 - 2.03 in)

Clearance “L2”

: 40.4 - 55.4 mm (1.59 - 2.18 in)

Front wiper arm nuts

: 23.5 N·m
 (2.4 kg-m, 17 ft-lb)

PKIA7843E

PKIA2549E