Nissan Murano Z51 (2011 year). Manual - part 19

CHG-24

< PERIODIC MAINTENANCE >

CHARGING SYSTEM PRELIMINARY INSPECTION

PERIODIC MAINTENANCE

CHARGING SYSTEM PRELIMINARY INSPECTION

Inspection Procedure

INFOID:0000000006260563

1.

CHECK BATTERY TERMINALS CONNECTION

Check if battery terminals are clean and tight.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair battery terminals connection.

2.

CHECK FUSE

Check for blown fuse.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Be sure to eliminate the cause of malfunction before installing new fuse.

3.

CHECK “E” TERMINAL CONNECTION

Check if “E” terminal (alternator ground harness) is clean and tight.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair “E” terminal connection.

4.

CHECK DRIVE BELT TENSION

Check drive belt tension. Refer to 

EM-17, "Checking"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair as needed.

Unit

Power source (Power supply terminals)

Fuse No.

Alternator

Battery (“S” terminal)

38

Combination meter

Ignition switch ON (“L” terminal)

4

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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION

Inspection Procedure

INFOID:0000000006260564

CAUTION:

When performing this inspection, always use a charged battery that has completed the battery inspec-
tion. (When the charging rate of the battery is low, the response speed of the voltage change will
become slow. This can cause an incorrect inspection.)

1.

CHECK ECM (CONSULT-III)

Perform ECM self-diagnosis with CONSULT-III. Refer to 

EC-129, "CONSULT-III Function"

.

Self-diagnostic results content

No malfunction detected>> GO TO 2.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

2.

CHECK OPERATION OF POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

1.

Connect CONSULT-III and start the engine.

2.

The selector lever is in “P” or “N” position and all of the electric loads and A/C, etc. are turned OFF.

3.

Select “ALTERNATOR DUTY” at “Active Test” of “ENGINE”, and then check the value of “BATTERY
VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to 40.0 %.

4.

Check the value of “BATTERY VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to
80.0%.

Is the measurement value within the specification?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK IPDM E/R (CONSULT-III)

Perform IPDM E/R self-diagnosis with CONSULT-III. Refer to 

PCS-12, "CONSULT-III Function (IPDM E/R)"

.

Self-diagnostic results content

No malfunction detected>> GO TO 4.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

4.

CHECK HARNESS BETWEEN ALTERNATOR AND IPDM E/R

1.

Turn ignition switch OFF.

2.

Disconnect alternator connector and IPDM E/R connector.

3.

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

4.

Check continuity between alternator harness connector and ground.

“BATTERY VOLT”

2 seconds after setting the 
DUTY value of “ALTERNA-
TOR DUTY” to 40.0 %

: 12 - 13.6 V

“BATTERY VOLT”

20 seconds after setting 
the DUTY value of “ALTER-
NATOR DUTY” to 80.0 %

: +0.5 V or more against 
the value of “BATTERY 
VOLT” monitor when 
DUTY value is 40.0 %

Alternator harness connector

IPDM E/R harness connector

Continuity

Connector

Terminal

Connector

Terminal

F60

5

 F12

76

Existed

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CHG-26

< PERIODIC MAINTENANCE >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair harness or connector between IPDM E/R and alternator. 

Alternator harness connector

Ground

Continuity

Connector

Terminal

F60

5

Not existed

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ALTERNATOR

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< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

ALTERNATOR

Exploded View

INFOID:0000000006260565

REMOVAL

DISASSEMBLY

Type: A003TJ1791

1.

Alternator mounting bolt

2.

Alternator stay mounting bolt

3.

Alternator

4.

Alternator mounting nut

5.

“B” terminal nut

6.

Alternator stay mounting bolt

7.

Alternator bracket

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPMIA0830ZZ

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CHG-28

< REMOVAL AND INSTALLATION >

ALTERNATOR

Removal and Installation

INFOID:0000000006260566

REMOVAL

1.

Disconnect the negative battery terminal.

2.

Remove engine cover.

3.

Remove front wheel and tire (RH).

4.

Remove splash guard (RH) Refer to 

EXT-23, "FENDER PROTECTOR : Exploded View"

.

5.

Remove air cleaner and air duct assembly. Refer to 

EM-31, "Removal and Installation"

.

6.

Remove drive belt. Refer to 

EM-17, "Removal and Installation"

.

7.

Remove A/C compressor. Refer to 

HA-37, "COMPRESSOR : Removal and Installation"

.

8.

Remove idler pulley. 

9.

Disconnect the oil pressure switch.

10. Disconnect the alternator harness connectors.

11. Remove the alternator bolt and nuts, using power tools.

12. Slide the alternator out and remove.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

1.

Rear bearing

2.

Rotor assembly

3.

Retainer

4.

Front bearing

5.

Front bracket assembly

6.

Through bolt

7.

Pulley

8.

Pulley nut

9.

Stator assembly

10. IC voltage regulator assembly

11.

Diode assembly

12. Rear bracket assembly

13. Terminal set

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPMIA0859GB

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ALTERNATOR

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< REMOVAL AND INSTALLATION >

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• Temporarily tighten all of alternator bolt and nuts. And then

tighten them in numerical order shown in the figure.

• Be sure to tighten “B” terminal nut carefully.
• Install alternator and check tension of belt. Refer to 

EM-30, "Exploded View"

.

• For this model, the power generation voltage variable control system that controls the power gener-

ation voltage of the alternator has been adopted. Therefore, the power generation voltage variable
control system operation inspection should be performed after replacing the alternator, and then
make sure that the system operates normally. Refer to 

CHG-25, "Inspection Procedure"

.

Inspection

INFOID:0000000006260567

ALTERNATOR PULLEY INSPECTION

Perform the following.
• Make sure that alternator pulley does not rattle.
• Make sure that alternator pulley nut is tight.

JPMIA0831ZZ

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CHG-30

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Alternator

INFOID:0000000006260568

*: Adjustment range of power generation voltage variable control is 11.4 – 15.6 V.

Type

A003TJ1791

MITSUBISHI make

Nominal rating

[V - A]

12 – 130

Ground polarity

Negative

Minimum revolution under no-load (When 13.5 V is ap-
plied)

[rpm]

Less than 1,300

Hot output current (When 13.5 V is applied)

[A/rpm]

More than 61/1,500

More than 109/2,500
More than 129/5,000

Regulated output voltage

[V]

14.1 – 14.7

*

Minimum length of brush

[mm (in)]

More than 5.00 (0.197)

Brush spring pressure

[N (g, oz)]

4.1 – 5.3 (418 – 541, 14.7 – 19.1)

Slip ring minimum outer diameter

[mm (in)]

More than 22.1 (0.870)

Rotor (Field coil) resistance

[

Ω

]

1.8 – 2.2

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ENGINE

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SECTION 

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CONTENTS

ENGINE COOLING SYSTEM

SYSTEM DESCRIPTION  ..............................

3

DESCRIPTION ....................................................

3

Engine Cooling System ...........................................

3

Engine Cooling System Schematic .........................

3

SYMPTOM DIAGNOSIS  ...............................

4

OVERHEATING CAUSE ANALYSIS  ..................

4

Troubleshooting Chart ..............................................

4

PRECAUTION ...............................................

6

PRECAUTIONS ...................................................

6

FOR USA AND CANADA ............................................

6

FOR USA AND CANADA : Precaution for Supple-
mental Restraint System (SRS) "AIR BAG" and 
"SEAT BELT PRE-TENSIONER" ..............................

6

FOR USA AND CANADA : Liquid Gasket  ................

6

FOR MEXICO  ..............................................................

7

FOR MEXICO : Precaution for Supplemental Re-
straint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER" ...................................................

7

FOR MEXICO : Liquid Gasket ..................................

8

PREPARATION ...........................................

10

PREPARATION ..................................................

10

Special Service Tool  ...............................................

10

Commercial Service Tools .....................................

10

PERIODIC MAINTENANCE .........................

11

ENGINE COOLANT  ...........................................

11

Inspection ................................................................

11

Draining ...................................................................

11

Refilling ...................................................................

12

Flushing ...................................................................

13

RADIATOR .........................................................

15

RADIATOR CAP  ........................................................

15

RADIATOR CAP : Inspection  ..................................

15

RADIATOR .................................................................

15

RADIATOR : Inspection ...........................................

15

REMOVAL AND INSTALLATION  ...............

16

RADIATOR ........................................................

16

Exploded View .........................................................

16

Removal and Installation  .........................................

16

Inspection ................................................................

18

COOLING FAN ..................................................

19

Exploded View .........................................................

19

Removal and Installation  .........................................

19

Disassembly and Assembly .....................................

20

Inspection ................................................................

20

WATER PUMP  ..................................................

21

Exploded View .........................................................

21

Removal and Installation  .........................................

21

Inspection ................................................................

24

WATER INLET AND THERMOSTAT ASSEM-
BLY ....................................................................

26

Exploded View .........................................................

26

Removal and Installation  .........................................

26

Inspection ................................................................

27

WATER OUTLET AND WATER PIPING  ..........

28

Exploded View .........................................................

28

Removal and Installation  .........................................

28

Inspection ................................................................

29

SERVICE DATA AND SPECIFICATIONS 
(SDS) ............................................................

30

SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

30

Periodical Maintenance Specification ......................

30

Radiator ...................................................................

30

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Thermostat .............................................................

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DESCRIPTION

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< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

DESCRIPTION

Engine Cooling System

INFOID:0000000006260911

Engine Cooling System Schematic

INFOID:0000000006260912

JPBIA1682GB

JPBIA1683GB

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< SYMPTOM DIAGNOSIS >

OVERHEATING CAUSE ANALYSIS

SYMPTOM DIAGNOSIS

OVERHEATING CAUSE ANALYSIS

Troubleshooting Chart

INFOID:0000000006260913

Symptom

Check items

Cooling sys-
tem parts 
malfunction

Poor heat transfer

Water pump malfunction

Worn or loose drive belt

—

Thermostat stuck closed

—

Damaged fins

Dust contamination or pa-
per clogging

Physical damage

Clogged radiator cooling 
tube

Excess foreign material 
(rust, dirt, sand, etc.)

Reduced air flow

Cooling fan does not oper-
ate

Fan assembly

—

High resistance to fan rota-
tion

Damaged fan blades

Damaged radiator shroud

—

—

—

Improper engine coolant 
mixture ratio

—

—

—

Poor engine coolant quality

—

Engine coolant density

—

Insufficient engine coolant

Engine coolant leakage

Cooling hose

Loose clamp

Cracked hose

Water pump

Poor sealing

Radiator cap

Loose

Poor sealing

Radiator

O-ring for damage, deterio-
ration or improper fitting

Cracked radiator tank

Cracked radiator core

Reservoir tank

Cracked reservoir tank

Overflowing reservoir tank

Exhaust gas leakage into 
cooling system

Cylinder head deterioration

Cylinder head gasket deteri-
oration

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OVERHEATING CAUSE ANALYSIS

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Except cool-
ing system 
parts mal-
function

—

Overload on engine

Abusive driving

High engine rpm under no 
load

Driving in low gear for ex-
tended time

Driving at extremely high 
speed

Powertrain system malfunc-
tion

—

Installed improper size 
wheels and tires

Dragging brakes

Improper ignition timing

Blocked or restricted air 
flow

Blocked bumper

—

—

Blocked radiator grille

Installed car brassiere

Mud contamination or paper 
clogging

Blocked radiator

—

Blocked condenser

Blocked air flow

Installed large fog lamp

Symptom

Check items

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CO-6

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

FOR USA AND CANADA

FOR USA AND CANADA : Precaution for Supplemental Restraint System (SRS) "AIR 
BAG" and "SEAT BELT PRE-TENSIONER"

INFOID:0000000006260914

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 AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that 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 “SRS AIR BAG”.

• 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

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

FOR USA AND CANADA : Liquid Gasket

INFOID:0000000006260915

REMOVAL OF LIQUID GASKET SEALING

• After removing mounting nuts and bolts, separate the mating sur-

face using the seal cutter [SST: KV10111100 (J-37228)] (A) and
remove old liquid gasket sealing.     

CAUTION:

Be careful not to damage the mating surfaces.

• Tap (B) the seal cutter [SST: KV10111100 (J-37228)] to insert it,

and then slide (C) it by tapping on the side as shown in the figure.

• In areas where seal cutter [SST: KV10111100 (J-37228)] is difficult

to use, use a plastic hammer to lightly tap the parts, to remove it.

CAUTION:

If for some unavoidable reason tool such as a screwdriver is
used, be careful not to damage the mating surfaces.

LIQUID GASKET APPLICATION PROCEDURE

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PRECAUTIONS

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< PRECAUTION >

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1.

Using a scraper (A), remove old liquid gasket adhering to the liq-
uid gasket application surface and the mating surface.
• Remove liquid gasket completely from the groove of the liquid

gasket application surface, mounting bolts, and bolt holes.

2.

Wipe the liquid gasket application surface and the mating sur-
face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.

3.

Attach liquid gasket tube to the tube presser (commercial ser-
vice tool).
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

4.

Apply liquid gasket without breaks to the specified location with
the specified dimensions.
• If there is a groove for the liquid gasket application, apply liq-

uid gasket to the groove.

• As for the bolt holes (B), normally apply liquid gasket inside

the holes. Occasionally, it should be applied outside the holes.
Check to read the text of service manual.

• Within five minutes of liquid gasket application, install the mat-

ing component.

• If liquid gasket protrudes, wipe it off immediately.
• Never retighten after mounting bolts and nuts the installation.
• After 30 minutes or more have passed from the installation, fill

engine oil and engine coolant.

CAUTION:

If there are specific instructions in this manual, observe them.

FOR MEXICO

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

INFOID:0000000006260916

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. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that 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 “SRS AIR BAG”.

• 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.

JPBIA0053ZZ

EMA0622D

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: Inside

JPBIA0010ZZ

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CO-8

< PRECAUTION >

PRECAUTIONS

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

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

FOR MEXICO : Liquid Gasket

INFOID:0000000006260917

REMOVAL OF LIQUID GASKET SEALING

• After removing mounting nuts and bolts, separate the mating sur-

face using the seal cutter [SST: KV10111100 (J-37228)] (A) and
remove old liquid gasket sealing.     

CAUTION:

Be careful not to damage the mating surfaces.

• Tap (B) the seal cutter [SST: KV10111100 (J-37228)] to insert it,

and then slide (C) it by tapping on the side as shown in the figure.

• In areas where seal cutter [SST: KV10111100 (J-37228)] is difficult

to use, use a plastic hammer to lightly tap the parts, to remove it.

CAUTION:

If for some unavoidable reason tool such as a screwdriver is
used, be careful not to damage the mating surfaces.

LIQUID GASKET APPLICATION PROCEDURE

1.

Using a scraper (A), remove old liquid gasket adhering to the liq-
uid gasket application surface and the mating surface.
• Remove liquid gasket completely from the groove of the liquid

gasket application surface, mounting bolts, and bolt holes.

2.

Wipe the liquid gasket application surface and the mating sur-
face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.

3.

Attach liquid gasket tube to the tube presser (commercial ser-
vice tool).
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

4.

Apply liquid gasket without breaks to the specified location with
the specified dimensions.
• If there is a groove for the liquid gasket application, apply liq-

uid gasket to the groove.

JPBIA0052ZZ

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PRECAUTIONS

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< PRECAUTION >

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• As for the bolt holes (B), normally apply liquid gasket inside

the holes. Occasionally, it should be applied outside the holes.
Check to read the text of service manual.

• Within five minutes of liquid gasket application, install the mat-

ing component.

• If liquid gasket protrudes, wipe it off immediately.
• Never retighten after mounting bolts and nuts the installation.
• After 30 minutes or more have passed from the installation, fill

engine oil and engine coolant.

CAUTION:

If there are specific instructions in this manual, observe them.

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: Inside

JPBIA0010ZZ

Revision: 2011 November

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