Nissan Murano Z50 (2007 year). Manual - part 127

TROUBLE DIAGNOSES WORK FLOW

LAN-29

[CAN FUNDAMENTAL]

LAN

Revision: 2006 July

2007 Murano

Reception item of “METER”: On “TCM”, “UNKWN” is indicated. This means M&A cannot receive the sig-
nal from TCM. Draw a line to indicate an error between M&A and TCM (line 2-f in the figure).

Reception item of “AUTO DRIVE POS.”: On “TCM”, “UNKWN” is indicated. This means ADP cannot
receive the signal from TCM. Draw a line to indicate an error between ADP and TCM (line 2-g in the fig-
ure).

Reception item of “ABS”: “UNKWN” is not indicated. This indicates normal communication between ABS
and its receiving units. Do not draw any line.

SKIB8727E

LAN-30

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSES WORK FLOW

Revision: 2006 July

2007 Murano

Reception item of “IPDM E/R”: “UNKWN” is not indicated. This indicates normal communication between
IPDM-E and its receiving units. Do not draw any line.

Based on information received from “CAN DIAG SUPPORT MNTR”, place a check mark on the known
good CAN communication line between ECM and IPDM-E.

Through the previous procedure, the circuit between ADP splice and TCM has the most amount of lines
(shade 3-a in the figure).

Place a check mark on the known good lines to establish the error circuit.
Reception item of “IPDM E/R”: On “ECM”, “OK” is indicated. IPDM-E communicates normally with ECM.
Put a check mark on the normal circuit between ECM and IPDM-E (check mark 3-b in the figure).

SKIB8728E

TROUBLE DIAGNOSES WORK FLOW

LAN-31

[CAN FUNDAMENTAL]

LAN

Revision: 2006 July

2007 Murano

Through the above procedure, the error is detected in the TCM branch line (shaded in the figure).

NOTE:
For abbreviations, refer to

LAN-41, "Abbreviation List"

Perform the inspection for the detected error circuit. For the inspection procedure, refer to

LAN-76, "Mal-

function Area Chart"

SKIB8893E

LAN-32

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSES WORK FLOW

Revision: 2006 July

2007 Murano

Present Error — Short Circuit —

When the symptoms listed below exist, a short circuit of the CAN communication line is a possible cause.

Received data

Error symptom

●

Most the units connected to the CAN communication system go into fail-safe mode or are deactivated.

Inspection procedure

●

Refer to

LAN-76, "Malfunction Area Chart"

Item (CONSULT-II)

Indication

SELECT SYSTEM

All Diag on CAN units are not indicated.

CAN DIAG SUPPORT MNTR

“UNKWN” is indicated under “TRANSMIT DIAG” and most reception items.

SKIB8894E

TROUBLE DIAGNOSES WORK FLOW

LAN-33

[CAN FUNDAMENTAL]

LAN

Revision: 2006 July

2007 Murano

Past Error — Open Circuit —

Review CAN communication signal chart based on information received from the interview with the customer
and on past error information from SELF-DIAG RESULTS and CAN DIAG SUPPORT MNTR.
1.

SELF-DIAG RESULTS: Inspect the control units indicating “U1000” or “U1001” on SELF-DIAG RESULTS.

SKIB8731E

LAN-34

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSES WORK FLOW

Revision: 2006 July

2007 Murano

CAN DIAG SUPPORT MNTR (with PAST): Check the CAN DIAG SUPPORT MNTR (with PAST) of units
indicating “U1000” or “U1001” on SELF-DIAG RESULTS. Draw a line on the diagnosis sheet to indicate
the possible error circuit.

NOTE:
For the details of each indication on CAN DIAG SUPPORT MNTR, refer to

LAN-44, "CAN Diagnostic Sup-

port Monitor"

Reception item of “ENGINE”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means ECM could not
receive the signal from ABS in the past. Draw a line between ECM and ABS (line 2-a in the figure).

Reception item of “METER”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means M&A could not
receive the signal from ABS in the past. Draw a line between M&A and ABS (line 2-b in the figure).

Reception item of “TRANSMISSION”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means TCM
could not receive the signal from ABS in the past. Draw a line between TCM and ABS (line 2-c in the fig-
ure).

SKIB8732E

TROUBLE DIAGNOSES WORK FLOW

LAN-35

[CAN FUNDAMENTAL]

LAN

Revision: 2006 July

2007 Murano

CAN DIAG SUPPORT MNTR (without PAST): Check the CAN DIAG SUPPORT MNTR (without PAST) of
units indicating “U1000” or “U1001” on SELF-DIAG RESULTS. Draw a line on the diagnosis sheet to indi-
cate the possible error circuit.

NOTE:

●

While an error occurred in the past according to SELF-DIAG RESULTS, it is unclear which signal is not
received. Assume that errors were detected from all reception items.

●

Draw a single line among the unit and all reception items. (Work flow differs from CAN DIAG SUPPORT
MNTR (with PAST).)

Reception item of “EPS”: Assume that the unit could not receive the signals from ECM, ABS, and M&A.
Draw a line among EPS, ECM, ABS, and M&A (line 3-a in the figure).

Reception item of “ABS”: Assume that the unit could not receive the signal from ECM. Draw a line
between ABS and ECM (line 3-b in the figure).

SKIB8733E

LAN-36

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSES WORK FLOW

Revision: 2006 July

2007 Murano

Search for the possible cause using CAN communication signal chart using information from the interview
with the customer.

NOTE:
For the details of CAN communication signal, refer to

LAN-50, "CAN Communication Signal Chart"

ABS warning lamp turned ON and speedometer did not move: This means that “ABS warning lamp signal”
and “Vehicle speed signal” could not communicate between M&A and ABS (4-a in the figure).

The tachometer moved normally: This means that “Engine speed signal” could communicate normally
between ECM and M&A (4-b in the figure).

SKIB8895E

TROUBLE DIAGNOSES WORK FLOW

LAN-37

[CAN FUNDAMENTAL]

LAN

Revision: 2006 July

2007 Murano

Fill out the diagnosis sheet based on information from step 4.

The ABS warning lamp turned ON and speedometer did not move: Assume that a possible cause is no
communication between M&A and ABS. Draw a line between M&A and ABS. (Line 5-a in the figure).

The tachometer moved normally: Put check marks between ECM and M&A. The circuit between ECM and
M&A is functioning properly (check marks 5-b in the figure).

SKIB8735E

LAN-38

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSES WORK FLOW

Revision: 2006 July

2007 Murano

The circuit which has the most amount of lines are the possible cause. Error is detected from ABS actua-
tor and electric unit (control unit) branch line (shaded in the figure).

NOTE:
For abbreviations, refer to

LAN-41, "Abbreviation List"

Perform the inspection procedure for the possible cause. Refer to

LAN-76, "Malfunction Area Chart"

SKIB8896E

TROUBLE DIAGNOSES WORK FLOW

LAN-39

[CAN FUNDAMENTAL]

LAN

Revision: 2006 July

2007 Murano

Past Error — Short Circuit —

When the symptoms listed below exist, a short circuit of the CAN communication line is a possible cause.

Item (CONSULT-II)

Indication

Inspection procedure

SELF-DIAG RESULTS

“U1000” and “U1001” is indicated in the past for most units.

Refer to

LAN-76, "Malfunction

Area Chart"

CAN DIAG SUPPORT MNTR

Only on CAN DIAG SUPPORT MNTR (with PAST), “1 - 39” is
indicated on “PAST” of “TRANSMIT DIAG” and the reception
item.

SKIB8897E

LAN-40

[CAN]

INDEX FOR DTC

Revision: 2006 July

2007 Murano

[CAN]

INDEX FOR DTC

PFP:00004

DTC No. Index

NKS004KZ

DTC

Self-diagnosis item

(CONSULT-II indication)

DTC detection condition

Inspection

U1000

CAN COMM CIRCUIT

When ECM is not transmitting or receiving CAN
communication signal of OBD (emission-related
diagnosis) for 2 seconds or more.

Refer to

LAN-41, "HOW

TO USE THIS SEC-
TION"

When a control unit (except for ECM) is not
transmitting or receiving CAN communication
signal for 2 seconds or more.

U1001

CAN COMM CIRCUIT

When ECM is not transmitting or receiving CAN
communication signal other than OBD (emis-
sion-related diagnosis) for 2 seconds or more.

U1002

SYSTEM COMM

When a control unit is not transmitting or receiv-
ing CAN communication signal for 2 seconds or
less.

Start the inspection.
Refer to the applicable
section of the indicated
control unit.

U1010

CONTROL UNIT [CAN]

When an error is detected during the initial diag-
nosis for CAN controller of each control unit.

Replace the control unit
indicating “U1010”.

HOW TO USE THIS SECTION

LAN-41

[CAN]

LAN

Revision: 2006 July

2007 Murano

HOW TO USE THIS SECTION

PFP:00008

Caution

NKS004L0

●

This section describes information peculiar to a vehicle, sheets for trouble diagnosis, and inspection pro-
cedures.

●

For trouble diagnosis procedure, refer to

LAN-17, "Trouble Diagnosis Procedure"

Abbreviation List

NKS004L1

Abbreviations in CAN communication signal chart, and the diagnosis sheet are as per the following list.

Abbreviation

Unit name

SELECT SYSTEM

(CONSULT-II)

CAN DIAG SUPPORT MNTR

(CONSULT-II)

4WD

AWD control unit

ALL MODE AWD/4WD

AWD/4WD

A-BAG

Air bag diagnosis sensor unit

AIR BAG

—

ABS

ABS actuator and electric unit (control unit)

ABS

VDC/TCS/ABS

ADP

Driver seat control unit

AUTO DRIVE POS.

—

NAVI control unit

MULTI AV

—

BCM

BCM/SEC

DIFF

Differential lock control unit

DIFF LOCK

DISP

Display control unit

—

DISPLAY

DLC

Data link connector

—

ECM

ENGINE

ECM

I-KEY

Intelligent Key unit

INTELLIGENT KEY

I-KEY

IPDM-E

IPDM E/R

M&A

Unified meter and A/C amp.

METER A/C AMP

METER/M&A

STRG

Steering angle sensor

—

STRG

TCM

TRANSMISSION

TCM

LAN-42

[CAN]

PRECAUTIONS

Revision: 2006 July

2007 Murano

PRECAUTIONS

PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”

NKS004L2

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

Precautions When Using CONSULT-II

NKS004L3

Use CONSULT-II CONVERTER when connecting CONSULT-II to data link connector.

CAUTION:

CAN communication does not function properly if CONSULT-II is used without connecting CONSULT-II
CONVERTER.

Precautions for Trouble Diagnosis

NKS004L4

CAUTION:

●

Never apply 7.0 V or more to the measurement terminal.

●

Use a tester with open terminal voltage of 7.0 V or less.

●

Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when
checking the harness.

Precautions for Harness Repair

NKS004L5

●

Solder the repaired area and wrap tape around the soldered
area.

NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).

SKIB8766E

PRECAUTIONS

LAN-43

[CAN]

LAN

Revision: 2006 July

2007 Murano

●

Bypass connection is never allowed at the repaired area.

NOTE:
Bypass connection may cause CAN communication error. The
spliced wire becomes separated and the characteristics of
twisted line are lost.

●

Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communi-
cation line.

SKIB8767E

LAN-44

[CAN]

TROUBLE DIAGNOSIS

Revision: 2006 July

2007 Murano

TROUBLE DIAGNOSIS

PFP:00004

CAN Diagnostic Support Monitor

NKS004L6

Use “CAN DIAG SUPPORT MNTR” for detecting the root cause.

MONITOR ITEM LIST (CONSULT-II)
ECM

0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF

→

ON)

*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.

BCM

NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.

SELECT SYS-

TEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

PAST

PRSNT

PAST

ENGINE

TRANSMIT DIAG

Signal transmission status

1 – 39

UNKWN

VDC/TCS/ABS

With VDC: Signal receiving status from the
ABS actuator and electric unit (control
unit)

With ABS: Not used even though indicated

METER/M&A

Signal receiving status from the unified
meter and A/C amp.

1 – 39

UNKWN

BCM/SEC

Signal receiving status from the BCM

ICC

Not used even though indicated

HVAC

TCM

Signal receiving status from the TCM

1 – 39

UNKWN

EPS

Not used even though indicated

IPDM E/R

Signal receiving status from the IPDM E/R

1 – 39

UNKWN

e4WD

Not used even though indicated

AWD/4WD

Signal receiving status from the AWD con-
trol unit

1 – 39

UNKWN

SELECT SYS-

TEM

CAN DIAG SUP-

PORT MNTR

Description

Normal

Error

PRSNT

BCM

INITIAL DIAG

Status of CAN controller

TRANSMIT DIAG

Signal transmission status

UNKWN

ECM

Signal receiving status from the ECM

IPDM E/R

Signal receiving status from the IPDM E/R

METER/M&A

Signal receiving status from the unified meter and A/C amp.

I-KEY

Signal receiving status from the Intelligent Key unit

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