Nissan Murano Z50 (2004 year). Manual

FRONT WIPER AND WASHER SYSTEM

WW-5

Revision: 2004 November

2004 Murano

●

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)].

When the ignition switch ON or START position, power is supplied

●

through 10 A fuse [No. 1 located in fuse block (J/B)]

●

to BCM (body control module) terminal 38

●

through 10 A fuse [No. 84 located in IPDM E/R (intelligent power distribution module engine room)]

●

through IPDM E/R (intelligent power distribution module engine room) terminal 44

●

to combination switch terminal 14.

Ground is supplied

●

to BCM (body control module) terminals 49 and 52

●

through grounds M14 and M78

●

to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60

●

through grounds E13, E26 and E28

●

to combination switch (wiper switch) terminal 12

●

through grounds M14 and M78.

LOW SPEED WIPER OPERATION

When front wiper switch is in LO position, BCM detects the LO position of the wiper switch by BCM wiper
switch reading function.
BCM sent front wiper request signal (LO) to IPDM E/R by CAN communication line

●

from BCM terminals 39 and 40

●

to IPDM E/R terminals 48 and 49.

When IPDM E/R receives front wiper request signal (LO), it turns ON front wiper relay (located in IPDM E/R),
power is supplied

●

to front wiper motor terminal 3

●

through IPDM E/R terminal 21 and front wiper relay and front wiper HI relay.

Ground is supplied

●

to front wiper motor terminal 1

●

through grounds E13, E26 and E28.

with power and ground is supplied, the front wiper motor operates at low speed.

HI SPEED WIPER OPERATION

When front wiper switch is in HI position, BCM detects the HI position of the wiper switch by BCM wiper switch
reading function.
BCM sent front wiper request signal (HI) to IPDM E/R by CAN communication line

●

from BCM terminals 39 and 40

●

to IPDM E/R terminals 48 and 49.

When IPDM E/R receives front wiper request signal (HI), it turns ON front wiper relay and front wiper HI relay
(located in IPDM E/R), power is supplied

●

to front wiper motor terminal 2

●

through IPDM E/R terminal 31 and front wiper relay and front wiper HI relay.

Ground is supplied

●

to front wiper motor terminal 1

●

through grounds E13, E26 and E28.

with power and ground is supplied, the front wiper motor operates at high speed.

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FRONT WIPER AND WASHER SYSTEM

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2004 Murano

INTERMITTENT OPERATION

Wiper intermittent operation delay interval is determined from a combination of 3 switches (intermittent opera-
tion dial position 1, intermittent operation dial position 2, and intermittent operation dial position 3) and vehicle
speed signal.
During each intermittent operation delay interval, BCM sends front wiper request signal to IPDM E/R.

Wiper Dial Position Setting

Example: For wiper dial position 1...
Using combination switch reading function, BCM detects ON/OFF status of intermittent operation dial posi-
tions 1, 2, and 3.
When combination switch status is as listed below, BCM determines that it is wiper dial position 1.

●

Intermittent operation dial position 1: ON (Combination switch output 3 and input 1 are performing.)

●

Intermittent operation dial position 2: ON (Combination switch output 5 and input 1 are performing.)

●

Intermittent operation dial position 3: ON (Combination switch output 4 and output 2 are performing.)

BCM determines front wiper intermittent operation delay interval from wiper dial position 1 and vehicle speed,
and sends wiper request signal (INT) to IPDM E/R.
Then IPDM E/R sends auto stop operation signal to BCM with CAN communication line.
When BCM receives auto stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN commu-
nication line.
IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.

AUTO STOP OPERATION

With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach windshield base.
When wiper arms are not located at base of windshield with wiper switch OFF, power is provided

●

from IPDM E/R terminal 21

●

to front wiper motor terminal 3, in order to continue wiper motor operation at low speed.

When wiper arms reach base of windshield, front wiper motor terminals 1 and 4 are connected, and ground is
supplied

●

to IPDM E/R terminal 32

●

through front wiper motor terminal 4

●

through front wiper motor terminal 1

●

through grounds E13, E26 and E28.

Then IPDM E/R sends auto stop operation signal to BCM with CAN communication line.
When BCM receives auto stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN commu-
nication line.
IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.

WASHER OPERATION

When wiper switch is in front wiper washer position, BCM detects front wiper washer signal by BCM wiper
switch reading function (Refer to

WW-7, "COMBINATION SWITCH READING FUNCTION"

), combination

switch (wiper switch) ground is supplied
Power is supplied

●

through 10 A fuse (No. 84 located in IPDM E/R)

●

to combination switch terminal 14

Wiper dial position

Intermittent operation

interval

Combination switch

Intermittent operation

dial position 1

Intermittent operation

dial position 2

Intermittent operation

dial position 3

Wiper dial position 1

Small

↓

Large

Wiper dial position 2

OFF

Wiper dial position 3

OFF

Wiper dial position 4

OFF

Wiper dial position 5

OFF

Wiper dial position 6

OFF

Wiper dial position 7

OFF

FRONT WIPER AND WASHER SYSTEM

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through combination switch (wiper switch) terminal 13

●

to front and rear washer motor terminal 1

●

to front and rear washer motor terminal 2

●

through combination switch (wiper switch) terminal 11

●

to combination switch terminal 12

●

through grounds M14 and M78.

With ground is supplied, front and rear washer motor is operated.
When BCM detects that front and rear washer motor has operated for 0.4 seconds or linger, BCM operates
front wiper motor for low speed.
When BCM detects washer switch is OFF, low speed operation cycles approximately 2 times and stops.

MIST OPERATION

When the wiper switch is turned to the mist position, wiper low speed operation cycles once and then stops.
For additional information about wiper operation under this condition. Refer to

WW-5, "LOW SPEED WIPER

OPERATION"

If the switch is held in the mist position, low speed operation continues.

FAIL-SAFE FUNCTION

IPDM E/R includes a fail-safe function to prevent malfunction of electrical components controlled by CAN com-
munications in CAN communications occurs.
When fail-safe status is initiated, IPDM E/R remains in steady unit signals are received.

COMBINATION SWITCH READING FUNCTION
Description

●

BCM reads combination switch (wiper) status, and controls related systems such as head lamps and wip-
ers, according to the results.

●

BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5).

Operation Description

●

BCM activates transistors of output terminals (OUTPUT 1-5) periodically and, and allows current to flow in
turn.

●

If any (1 or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals
(INPUT 1-5) becomes active.

FRONT WIPER AND WASHER SYSTEM

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●

When OUTPUT 1 transistor is ON, BCM detects that voltage changes in INPUT 3, and judges that front
wiper low is ON. Then BCM sends front wiper request signal (LO) to IPDM E/R using CAN communica-
tion.

●

When OUTPUT 1 transistor is activated again, BCM detects that voltage changes in INPUT 3, and recog-
nizes that wiper switch is continuously ON.

NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON, electri-
cal loads are activated with time delay. But this time delay is so short that it cannot be detected by human
senses.

Operation Mode

Combination switch reading function has operation modes shown below.
1.

Normal status

–

When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10 ms.

Sleep status

SKIA5290E

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FRONT WIPER AND WASHER SYSTEM

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2004 Murano

–

When BCM is in sleep status, transistors of OUTPUT (1 and 5) stop the output, and BCM enters low cur-
rent consumption mode. OUTPUT (2, 3, and 4) turn ON-OFF every 10 ms, and only input from light switch
system is accepted.

CAN Communication System Description

AKS005MC

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Unit

AKS007R1

Refer to

LAN-8, "CAN Communication Unit"

PKIB4499E

FRONT WIPER AND WASHER SYSTEM

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Terminals and Reference Values for BCM

AKS00AMS

Terminal No.

(Wire color)

Signal name

Measuring condition

Reference value

Ignition

switch

Operation or condition

2 (R)

Combination switch input 5

●

Lighting switch and wiper switch
OFF

●

Wiper dial position 4

3 (P/L)

Combination switch input 4

●

Lighting switch and wiper switch
OFF

●

Wiper dial position 4

4 (R/G)

Combination switch input 3

●

Lighting switch and wiper switch
OFF

●

Wiper dial position 4

5 (R/B)

Combination switch input 2

●

Lighting switch and wiper switch
OFF

●

Wiper dial position 4

6 (R/W)

Combination switch input 1

32 (LG/B)

Combination switch output 5

●

Lighting switch and wiper switch
OFF

●

Wiper dial position 4

33 (G/Y)

Combination switch output 4

●

Lighting switch and wiper switch
OFF

●

Wiper dial position 4

34 (LG/R)

Combination switch output 3

●

Lighting switch and wiper switch
OFF

●

Wiper dial position 4

SKIA5291E

SKIA5292E

SKIA5291E

SKIA5292E

SKIA5291E

SKIA5292E

SKIA5291E

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FRONT WIPER AND WASHER SYSTEM

Revision: 2004 November

2004 Murano

Terminals and Reference Values for IPDM E/R

AKS00AMT

How to Proceed With Trouble Diagnosis

AKS00AMU

Confirm the symptoms and customer complaint.

Understand operation description and function description. Refer to

WW-4, "System Description"

Perform the preliminary check. Refer to

WW-17, "Preliminary Check"

Check symptom and repair or replace the cause of malfunction.

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

INSPECTION END

35 (G/B)

Combination switch output 2

●

Lighting switch and wiper switch
OFF

●

Wiper dial position 4

36 (L/W)

Combination switch output 1

38 (R)

Ignition switch (ON)

—

Battery voltage

39 (L)

CAN H

—

40 (Y)

CAN L

—

42 (GR)

Battery power supply

OFF

—

Battery voltage

49 (B)

Ground

—

Approx. 0 V

52 (B)

Ground

—

Approx. 0 V

55 (W/B)

Battery power supply

OFF

—

Battery voltage

Terminal No.

(Wire color)

Signal name

Measuring condition

Reference value

Ignition

switch

Operation or condition

SKIA5292E

Terminal No.

(Wire color)

Signal name

Measuring condition

Reference value

Ignition switch

Operation or condition

21 (L)

Low speed signal

Wiper switch

OFF

Approx. 0 V

Battery voltage

31 (L/B)

High speed signal

Wiper switch

OFF

Approx. 0 V

Battery voltage

32 (L/Y)

Wiper auto - stop signal

Wiper operating

Battery voltage

Wiper stopped

Approx. 0 V

38 (B)

Ground

—

Approx. 0 V

44 (R/W)

Combination switch (washer
motor)

—

Battery voltage

48 (L)

CAN H

—

49 (Y)

CAN L

—

60 (B)

Ground

—

Approx. 0 V

FRONT WIPER AND WASHER SYSTEM

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Preliminary Check

AKS00AMV

CHECK POWER SUPPLY AND GROUND CIRCUIT

Inspection Procedure

CHECK FUSE

●

Check if wiper and washer fuse is blown.

Refer to

WW-12, "Wiring Diagram — WIPER —"

OK or NG

>> GO TO 2.

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

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect BCM connector.

Check voltage between BCM harness connector terminal and
ground.

OK or NG

>> GO TO 3.

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

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

OK or NG

>> INSPECTION END

>> Repair harness or connector.

Unit

Power source

Fuse and fusible link No.

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

Battery

BCM

Battery

Ignition ON or START

Combination switch

Ignition ON or START

Terminals

Ignition switch position

(+)

(–)

OFF

Connector

Terminal (Wire color)

M35

42 (GR)

Ground

Battery voltage

M35

55 (W/B)

Battery voltage

M34

38 (R)

Battery voltage

SKIA9169E

Terminals

Continuity

Connector

Terminal (Wire color)

M35

49 (B)

Ground

Yes

52 (B)

PKIA5191E

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FRONT WIPER AND WASHER SYSTEM

Revision: 2004 November

2004 Murano

CONSULT-II Functions (BCM)

AKS00AMW

CONSULT-II can display each diagnostic item using the following diagnostic test modes: self-diagnostic
results, data monitor and active test through data reception and command transmission via the BCM CAN
communication line.

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.

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

Touch “START (NISSAN BASED VHCL)”.

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

GI-39, "CONSULT-II Data Link

Connector (DLC) Circuit"

BCM diagnosis position

Check item, Diagnosis mode

Description

Wiper

WORK SUPPORT

Changes the setting for wiper speed at intermittent.

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

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

BCM

CAN DIAG SUPPORT MNTR

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

PBIB1300E

SKIA3098E

PKIA6323E

FRONT WIPER AND WASHER SYSTEM

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Touch “WIPER”.

WORK SUPPORT
Operation Procedure

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

Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.

Touch “WIPER SPEED SETTING” on “SELECT WORK ITEM” screen.

Touch “START”.

Touch “CHANGE SETT”.

The setting will be changed and “CUSTOMIZING COMPLETED” will be displayed.

Touch “END”.

Display Item List

DATA MONITOR
Operation Procedure

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

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

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

Touch “START”.

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

Touch “RECORDING START” while monitoring to record the status of the item being monitored. To stop
recording, touch “RECORDING STOP”.

Display Item List

PKIA6100E

Item

Description

CONSULT-II

Factory setting

WIPER SPEED

SETTING

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

OFF

—

ALL SIGNALS

Monitors all the signals.

SELECTION FROM MENU

Selects and monitors individual signals.

Monitor item [operation or unit]

Display content

IGN ON SW

[ON/OFF]

Displays “ignition switch ON (ON)/Other OFF or ACC (OFF)” status as judged from ignition
switch signal.

IGN SW CAN

[ON/OFF]

Displays “ignition switch ON (ON)/Other OFF or ACC (OFF)” status as judged from CAN com-
munication signal.

FR WIPER HI

[ON/OFF]

Displays “FRONT WIPER HI (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 INT

[ON/OFF]

Displays “FRONT WIPER INT (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 sig-
nal.

INT VOLUME

[1 - 7]

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

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FRONT WIPER AND WASHER SYSTEM

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NOTE:
This item is displayed, but cannot monitor it.

ACTIVE TEST
Operation Procedure

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

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

Touch items to be tested, and check operation.

During operation check, touching “STOP” deactivates operation.

Display Item List

CONSULT-II Functions (IPDM E/R)

AKS00AMX

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.

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

FR WIPER STOP

[ON/OFF]

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

VEHICLE SPEED

[km/h]

Displays vehicle speed status as judged from vehicle speed signal.

RR WIPER ON

[ON/OFF]

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

RR WIPER INT

[ON/OFF]

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

RR WIPER STP2

NOTE

[OFF]

—

Monitor item [operation or unit]

Display content

Test item

Indication on

CONSULT-II display

Description

Front wiper output

FR WIPER

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

Rear wiper output

RR WIPER

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

Inspection Item, Diagnosis Mode

Description

SELF-DIAG RESULTS

The IPDM E/R performs diagnosis of the CAN communication and self-diagnosis.

DATA MONITOR

The input/output data of the 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

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

PBIB1300E

Nissan Murano Z50 (2004 year). Manual - part 223