Nissan Murano Z51 (2008 year). Manual - part 248

 

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Nissan Murano Z51 (2008 year). Manual - part 248

 

 

LAN-10

< FUNCTION DIAGNOSIS >

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSIS

TROUBLE DIAGNOSIS

Condition of Error Detection

INFOID:0000000003387568

“U1000” or “U1001” is indicated on SELF-DIAG RESULTS on CONSULT-III if CAN communication signal is
not transmitted or received between units for 2 seconds or more.

CAN COMMUNICATION SYSTEM ERROR

• CAN communication line open (CAN-H, CAN-L, or both)
• CAN communication line short (ground, between CAN communication lines, other harnesses)
• Error of CAN communication control circuit of the unit connected to CAN communication line

WHEN “U1000” OR “U1001” IS INDICATED EVEN THOUGH CAN COMMUNICATION SYSTEM IS
NORMAL

• Removal/installation of parts: Error may be detected when removing and installing CAN communication unit

and related parts while turning the ignition switch ON. (A DTC except for CAN communication may be
detected.)

• Fuse blown out (removed): CAN communication of the unit may cease.
• Voltage drop: Error may be detected if voltage drops due to discharged battery when turning the ignition

switch ON (Depending on the control unit which carries out CAN communication).

• Error may be detected if the power supply circuit of the control unit, which carries out CAN communication,

malfunctions (Depending on the control unit which carries out CAN communication).

• Error may be detected if reprogramming is not completed normally.
NOTE:
CAN communication system is normal if “U1000” or “U1001” is indicated on SELF-DIAG RESULTS of CON-
SULT-III under the above conditions. Erase the memory of the self-diagnosis of each unit.

Symptom When Error Occurs in CAN Communication System

INFOID:0000000003387569

In CAN communication system, multiple units mutually transmit and receive signals. Each unit cannot transmit
and receive signals if any error occurs on CAN communication line. Under this condition, multiple control units
related to the root cause malfunction or go into fail-safe mode.

ERROR EXAMPLE

NOTE:
• Each vehicle differs in symptom of each unit under fail-safe mode and CAN communication line wiring.
• Refer to 

LAN-21, "Abbreviation List"

 for the unit abbreviation.

Example: TCM branch line open circuit

SKIB8738E

Unit name

Symptom

ECM

Engine torque limiting is affected, and shift harshness increases.

BCM

Reverse warning chime does not sound.

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TROUBLE DIAGNOSIS

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< FUNCTION DIAGNOSIS >

[CAN FUNDAMENTAL]

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Example: Data link connector branch line open circuit

NOTE:
• When data link connector branch line is open, transmission and reception of CAN communication signals

are not affected. Therefore, no symptoms occur. However, be sure to repair malfunctioning circuit.

• The model (all units on CAN communication system are Diag on CAN) cannot perform CAN diagnosis with

CONSULT-III if the following error occurs. The error is judged by the symptom.

EPS control unit

Normal operation.

Combination meter

• Shift position indicator and OD OFF indicator turn OFF.
• Warning lamps turn ON.

ABS actuator and electric unit (control unit)

Normal operation.

TCM

No impact on operation.

IPDM E/R

Normal operation.

Unit name

Symptom

SKIB8739E

Unit name

Symptom

ECM

Normal operation.

BCM

EPS control unit

Combination meter

ABS actuator and electric unit (control unit)

TCM

IPDM E/R

Error

Difference of symptom

Data link connector branch line open circuit

Normal operation.

CAN-H, CAN-L harness short-circuit

Most of the units which are connected to the CAN communication 
system enter fail-safe mode or are deactivated.

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LAN-12

< FUNCTION DIAGNOSIS >

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSIS

Example: Main Line Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Open Circuit

Example: CAN-H, CAN-L Harness Short Circuit

SKIB8740E

Unit name

Symptom

ECM

Engine torque limiting is affected, and shift harshness increases.

BCM

• Reverse warning chime does not sound.
• The front wiper moves under continuous operation mode even though the front wip-

er switch being in the intermittent position.

EPS control unit

The steering effort increases.

Combination meter

• The shift position indicator and OD OFF indicator turn OFF.
• The speedometer is inoperative.
• The odo/trip meter stops.

ABS actuator and electric unit (control unit)

Normal operation.

TCM

No impact on operation.

IPDM E/R

When the ignition switch is ON,
• The headlamps (Lo) turn ON.
• The cooling fan continues to rotate.

SKIB8741E

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TROUBLE DIAGNOSIS

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< FUNCTION DIAGNOSIS >

[CAN FUNDAMENTAL]

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CAN Diagnosis with CONSULT-III

INFOID:0000000003387570

CAN diagnosis on CONSULT-III extracts the root cause by receiving the following information.
• Response to the system call
• Control unit diagnosis information
• Self-diagnosis
• CAN diagnostic support monitor

Self-Diagnosis

INFOID:0000000004752131

CAN Diagnostic Support Monitor

INFOID:0000000003387572

MONITOR ITEM (CONSULT-III)

Unit name

Symptom

ECM

• Engine torque limiting is affected, and shift harshness increases.
• Engine speed drops.

BCM

• Reverse warning chime does not sound.
• The front wiper moves under continuous operation mode even though the front 

wiper switch being in the intermittent position.

• The room lamp does not turn ON.
• The engine does not start (if an error or malfunction occurs while turning the igni-

tion switch OFF.)

• The steering lock does not release (if an error or malfunction occurs while turning 

the ignition switch OFF.)

EPS control unit

The steering effort increases.

Combination meter

• The tachometer and the speedometer do not move.
• Warning lamps turn ON.
• Indicator lamps do not turn ON.

ABS actuator and electric unit (control unit)

Normal operation.

TCM

No impact on operation.

IPDM E/R

When the ignition switch is ON,
• The headlamps (Lo) turn ON.
• The cooling fan continues to rotate.

DTC

Self-diagnosis item

 (CONSULT-III indication)

DTC detection condition

Inspection/Action

U0101

LOST COMM (TCM)

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

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

U0164

LOST COMM (HVAC)

When ECM is not transmitting or receiving CAN com-
munication signal of OBD (emission-related diagnosis) 
from A/C auto amp. for 2 seconds or more.

U1000

CAN COMM CIRCUIT

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 com-
munication signal other than OBD (emission-related di-
agnosis) for 2 seconds or more.

U1002

SYSTEM COMM

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

U1010

CONTROL UNIT(CAN)

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

Replace the control unit in-
dicating “U1010” or 
“P0607”.

P0607

ECM

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LAN-14

< FUNCTION DIAGNOSIS >

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSIS

Example: CAN DIAG SUPPORT MNTR indication

Without PAST

With PAST

MONITOR ITEM (ON-BOARD DIAGNOSIS)

NOTE:
For some models, CAN communication diagnosis result is received from the vehicle monitor.

JSMIA0015GB

Item

PRSNT

Description

Initial diagnosis

OK

Normal at present

NG

Control unit error (Except for some control units)

Transmission diagnosis

OK

Normal at present

UNKWN

Unable to transmit signals for 2 seconds or more.

Diagnosis not performed

Control unit name

(Reception diagnosis)

OK

Normal at present

UNKWN

Unable to receive signals for 2 seconds or more.

Diagnosis not performed

No control unit for receiving signals. (No applicable optional parts)

Item

PRSNT

PAST

Description

Transmission diagnosis

OK

OK

Normal at present and in the past

1 – 39

Normal at present, but unable to transmit signals for 2 seconds or more 
in the past. (The number indicates the number of ignition switch cycles 
from OFF to ON.)

UNKWN

0

Unable to transmit signals for 2 seconds or more at present.

Control unit name

(Reception diagnosis)

OK

OK

Normal at present and in the past

1 – 39

Normal at present, but unable to receive signals for 2 seconds or more 
in the past. (The number indicates the number of ignition switch cycles 
from OFF to ON.)

UNKWN

0

Unable to receive signals for 2 seconds or more at present.

Diagnosis not performed.

No control unit for receiving signals. (No applicable optional parts)

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TROUBLE DIAGNOSIS

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Example: Vehicle Display 

How to Use CAN Communication Signal Chart

INFOID:0000000003387573

The CAN communication signal chart lists the signals needed for trouble diagnosis. It is useful for detecting
the root cause by finding a signal related to the symptom, and by checking transmission and reception unit.

Item

Result indi-

cated

Error counter

Description

CAN_COMM

(Initial diagnosis)

OK

0

Normal at present

NG

1 – 50

Control unit error
(The number indicates how many times diagnosis has been 
run.)

CAN_CIRC_1

(Transmission diagnosis)

OK

0

Normal at present

UNKWN

1 – 50

Unable to transmit for 2 seconds or more at present.
(The number indicates how many times diagnosis has been 
run.)

CAN_CIRC_2 – 9

(Reception diagnosis of each unit)

OK

0

Normal at present

UNKWN

1 – 50

Unable to transmit for 2 seconds or more at present.
(The number indicates how many times diagnosis has been 
run.)

Diagnosis not performed.

No control unit for receiving signals. (No applicable optional 
parts)

SKIB8715E

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LAN-16

< BASIC INSPECTION >

[CAN FUNDAMENTAL]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Trouble Diagnosis Flow Chart

INFOID:0000000003387574

Trouble Diagnosis Procedure

INFOID:0000000003387575

INTERVIEW WITH CUSTOMER

Interview with the customer is important to detect the root cause of CAN communication system errors and to
understand vehicle condition and symptoms for proper trouble diagnosis.

Points in interview

• What: Parts name, system name
• When: Date, Frequency
• Where: Road condition, Place
• In what condition: Driving condition/environment
• Result: Symptom
NOTE:
• Check normal units as well as error symptoms.
- Example: Circuit between ECM and the combination meter is judged normal if the customer indicates

tachometer functions normally.

• When a CAN communication system error is present, multiple control units may malfunction or go into fail-

safe mode.

JSMIA0016GB

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DIAGNOSIS AND REPAIR WORKFLOW

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[CAN FUNDAMENTAL]

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• Indication of the combination meter is important to detect the root cause because it is the most obvious to

the customer, and it performs CAN communication with many units.

INSPECTION OF VEHICLE CONDITION

Check whether the symptom is reproduced or not.
NOTE:
Do not turn the ignition switch OFF or disconnect the battery cable while reproducing the error. The error may
temporarily correct itself, making it difficult to determine the root cause.

CHECK OF CAN SYSTEM TYPE (HOW TO USE CAN SYSTEM TYPE SPECIFICATION CHART)

Determine CAN system type based on vehicle equipment.
NOTE:
• This chart is used if CONSULT-III does not automatically recognize CAN system type.
• There are two styles for CAN system type specification charts. Depending on the number of available sys-

tem types, either style A or style B may be used.

CAN System Type Specification Chart (Style A)

NOTE:

SKIB8717E

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< BASIC INSPECTION >

[CAN FUNDAMENTAL]

DIAGNOSIS AND REPAIR WORKFLOW

CAN system type is easily checked with the vehicle equipment identification information shown in the chart.

CAN System Type Specification Chart (Style B)

NOTE:

JSMIA0017GB

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DIAGNOSIS AND REPAIR WORKFLOW

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CAN system type is easily checked with the vehicle equipment identification information shown in the chart.

CREATE INTERVIEW SHEET

Fill out the symptom described by the customer, vehicle condition, and CAN system type on the interview
sheet.

JSMIA0018GB

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< BASIC INSPECTION >

[CAN FUNDAMENTAL]

DIAGNOSIS AND REPAIR WORKFLOW

Interview Sheet (Example)

DETECT THE ROOT CAUSE

CAN diagnosis function of CONSULT-III detects the root cause.

JSMIA0019GB

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HOW TO USE THIS SECTION

LAN-21

< HOW TO USE THIS MANUAL >

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HOW TO USE THIS MANUAL

HOW TO USE THIS SECTION

Caution

INFOID:0000000003387576

• This section describes information peculiar to a vehicle and inspection procedures.
• For trouble diagnosis procedure, refer to 

LAN-16, "Trouble Diagnosis Procedure"

.

Abbreviation List

INFOID:0000000003387577

Unit name abbreviations in CONSULT-III CAN diagnosis and in this section are as per the following list.

Abbreviation

Unit name

4WD

AWD control unit

A-BAG

Air bag diagnosis sensor unit

ABS

ABS actuator and electric unit (control unit)

ADP

Driver seat control unit

AV

AV control unit

BCM

BCM

DLC

Data link connector

ECM

ECM

HVAC

A/C auto amp.

IPDM-E

IPDM E/R

M&A

Combination meter

PWBD

Automatic back door control unit

STRG

Steering angle sensor

TCM

TCM

Revision: 2008 October

2009 Murano

LAN-22

< PRECAUTION >

[CAN]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000004770038

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 AIRBAG” and “SEAT BELT” of this
Service Manual.

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 performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors while ignition switch is
ON or engine is running, never use air or electric power tools or strike near the sensor(s) with a hammer.
Heavy vibration may activate the sensor(s), deploy the airbag(s), possibly cause serious injury.
When using air or electric power tools or hammers, always turn OFF ignition switch, disconnect the battery,
and wait 3 minutes or more before performing any service.

Precautions for Trouble Diagnosis

INFOID:0000000004770039

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

INFOID:0000000004770040

• 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

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PRECAUTIONS

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< PRECAUTION >

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• 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 communica-

tion line.

SKIB8767E

Revision: 2008 October

2009 Murano

LAN-24

< BASIC INSPECTION >

[CAN]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Interview Sheet

INFOID:0000000003387581

SKIB8898E

Revision: 2008 October

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CAN COMMUNICATION SYSTEM

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< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

CAN COMMUNICATION SYSTEM

CAN System Specification Chart

INFOID:0000000003387582

Determine CAN system type from the following specification chart.
NOTE:
Refer to 

LAN-16, "Trouble Diagnosis Procedure"

 for how to use CAN system specification chart.

×

: Applicable

VEHICLE EQUIPMENT IDENTIFICATION INFORMATION

NOTE:
Check CAN system type from the vehicle shape and equipment.

CAN Communication Signal Chart

INFOID:0000000003387583

Refer to 

LAN-15, "How to Use CAN Communication Signal Chart"

 for how to use CAN communication signal

chart.
NOTE:
Refer to 

LAN-21, "Abbreviation List"

 for the abbreviations of the connecting units.

Body type

Wagon

Axle

2WD

AWD

Engine

VQ35DE

Transmission

CVT

Brake control

VDC

Automatic drive positioner

×

Automatic back door system

×

×

×

Color display

×

×

×

×

×

CAN  system  type

6

1

2

7

3

4

5

JPMIA1349GB

Revision: 2008 October

2009 Murano

 

 

 

 

 

 

 

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