Nissan Murano Z51 (2013 year). Manual - part 19

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L TERMINAL CIRCUIT (OPEN)

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L TERMINAL CIRCUIT (OPEN)

Description

INFOID:0000000008457812

The “L” terminal circuit controls the charge warning lamp. The charge warning lamp illuminates when the igni-
tion switch is set to ON or START. When the alternator is providing sufficient voltage with the engine running,
the charge warning lamp will go off. If the charge warning lamp illuminates with the engine running, a malfunc-
tion is indicated.

Diagnosis Procedure

INFOID:0000000008457813

1.

CHECK “L” TERMINAL CONNECTION

1.

Turn ignition switch OFF.

2.

Check if “L” terminal is clean and tight.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair “L” terminal connection. Confirm repair by performing complete Charging system testusing

EXP-800 NI or GR8-1200 NI (if available). Refer to the applicable Instruction Manual forproper
testing procedures.

2.

CHECK “L” TERMINAL CIRCUIT (OPEN)

1.

Disconnect alternator connector.

2.

Apply ground to alternator harness connector terminal.

3.

Check condition of the charge warning lamp with the ignition switch in the ON position.

Does it illuminate?

YES

>> “L” terminal circuit is normal. Refer to 

CHG-3, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 or

CHG-7, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

.

NO

>> GO TO 3.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the battery cable from the negative terminal.

2.

Disconnect the combination meter connector.

3.

Check continuity between alternator harness connector and combination meter harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair the harness or connector.

4.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check continuity between combination meter harness connector and fuse block.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair the harness.

Alternator harness connector

Terminal

Ground

Condition

Ignition switch position

Charge warning lamp

F60

3

ON

 illuminate

Alternator harness connector

Combination meter harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

F60

3

M34

25

Existed

Combination meter harness connector

Fuse block

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M34

2

M3

12C

Existed

Revision: 2012 September

2013 MURANO

CHG-16

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L TERMINAL CIRCUIT (OPEN)

5.

CHECK POWER SUPPLY CIRCUIT

1.

Connect the battery cable to the negative terminal.

2.

Check voltage between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> Replace combination meter.

NO

>> Inspect the power supply circuit. Refer to 

PG-21, "Wiring Diagram - IGNITION POWER SUPPLY -

"

.

Terminals

Condition

Voltage (Approx.)

(+)

(–)

Combination meter 

harness connector

Terminal

M34

2

Ground

When the ignition switch is in 

ON position

Battery voltage

Revision: 2012 September

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CHG

L TERMINAL CIRCUIT (SHORT)

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L TERMINAL CIRCUIT (SHORT)

Description

INFOID:0000000008457814

The “L” terminal circuit controls the charge warning lamp. The charge warning lamp illuminates when the igni-
tion switch is set to ON or START. When the alternator is providing sufficient voltage with the engine running,
the charge warning lamp will go off. If the charge warning lamp illuminates with the engine running, a malfunc-
tion is indicated.

Diagnosis Procedure

INFOID:0000000008457815

1.

CHECK “L” TERMINAL CIRCUIT (SHORT)

1.

Turn ignition switch OFF.

2.

Disconnect alternator connector.

3.

Turn ignition switch ON.

Does charge warning lamp illuminate?

YES

>> GO TO 2.

NO

>> Refer to 

CHG-3, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 or 

CHG-7, "Work Flow (Without

EXP-800 NI or GR8-1200 NI)"

.

2.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Disconnect combination meter connector.

4.

Check continuity between combination meter harness connector and ground.

Is the inspection result normal?

YES

>> Replace combination meter.

NO

>> Repair the harness.

Combination meter harness connector

Ground

Continuity

Connector No.

Terminal No.

M34

25

Not existed

Revision: 2012 September

2013 MURANO

CHG-18

< DTC/CIRCUIT DIAGNOSIS >

S TERMINAL CIRCUIT

S TERMINAL CIRCUIT

Description

INFOID:0000000008457816

The output voltage of the alternator is controlled by the IC voltage regulator at the “S” terminal detecting the
input voltage.
The “S” terminal circuit detects the battery voltage to adjust the alternator output voltage with the IC voltage
regulator.

Diagnosis Procedure

INFOID:0000000008457817

1.

CHECK “S” TERMINAL CONNECTION

1.

Turn ignition switch OFF.

2.

Check if “S” terminal is clean and tight.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair “S” terminal connection. Confirm repair by performing complete Charging system testusing

EXP-800 NI or GR8-1200 NI (if available). Refer to the applicable Instruction Manual forproper
testing procedures.

2.

CHECK “S” TERMINAL CIRCUIT

Check voltage between alternator harness connector and ground.

Is the inspection result normal?

YES

>> Refer to 

CHG-3, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 or 

CHG-7, "Work Flow (Without

EXP-800 NI or GR8-1200 NI)"

.

NO

>> Check harness for open between alternator and fuse.

Terminals

Voltage (Approx.)

(+)

(–)

Alternator harness connector

Terminal

F60

4

Ground

Battery voltage

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CHARGING SYSTEM

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CHARGING SYSTEM

Wiring Diagram - CHARGING SYSTEM -

INFOID:0000000008457818

JCMWM3186GB

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CHG-20

< SYMPTOM DIAGNOSIS >

CHARGING SYSTEM

SYMPTOM DIAGNOSIS

CHARGING SYSTEM

Symptom Table

INFOID:0000000008457819

Symptom

Reference

Discharged battery

Refer to 

CHG-3, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 

or 

CHG-7, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

.

The charge warning lamp does not illuminate when the ignition 
switch is set to ON.

The charge warning lamp does not turn OFF after the engine 
starts.

The charging warning lamp turns ON when increasing the engine 
speed.

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PRECAUTIONS

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PRECAUTION

PRECAUTIONS

FOR USA AND CANADA

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

INFOID:0000000008457820

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 : Precaution for Power Generation Voltage Variable Control 
System

INFOID:0000000008457821

CAUTION:

For this model, the battery current sensor that is installed to the battery cable at the negative terminal
measures the charging/discharging current of the battery, and performs various controls. If the electri-
cal component or the ground wire is connected directly to the battery terminal, the current other than
that being measured with the battery current sensor is charging to or discharging from the battery.
This condition causes the malfunction of the control, and then the battery discharge may occur. Do
not connect the electrical component or the ground wire directly to the battery terminal.

FOR MEXICO

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

INFOID:0000000008457822

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.

Revision: 2012 September

2013 MURANO

CHG-22

< PRECAUTION >

PRECAUTIONS

• 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 MEXICO : Precaution for Power Generation Voltage Variable Control System

INFOID:0000000008457823

CAUTION:

For this model, the battery current sensor that is installed to the battery cable at the negative terminal
measures the charging/discharging current of the battery, and performs various controls. If the electri-
cal component or the ground wire is connected directly to the battery terminal, the current other than
that being measured with the battery current sensor is charging to or discharging from the battery.
This condition causes the malfunction of the control, and then the battery discharge may occur. Do
not connect the electrical component or the ground wire directly to the battery terminal.

Revision: 2012 September

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PREPARATION

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< PREPARATION >

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PREPARATION

PREPARATION

Special Service Tools

INFOID:0000000008891168

Commercial Service Tools

INFOID:0000000008457825

Tool number

(Kent-Moore No.)

Tool name

Description

—
(—) Model GR8-1200 NI
Multitasking battery and electrical di-
agnostic station

Tests batteries, starting and charging sys-
tems and charges batteries.
For operating instructions, refer to diagnos-
tic station instruction manual.

—
(—) Model EXP-800 NI
Battery and electrical diagnostic ana-
lyzer

Tests batteries and charging systems.
For operating instructions, refer to diagnos-
tic analyzer instruction manual.

AWIIA1239ZZ

JSMIA0806ZZ

Tool name

Description

Power tool

Loosening bolts, nuts and screws

PIIB1407E

Revision: 2012 September

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CHG-24

< PERIODIC MAINTENANCE >

CHARGING SYSTEM PRELIMINARY INSPECTION

PERIODIC MAINTENANCE

CHARGING SYSTEM PRELIMINARY INSPECTION

Inspection Procedure

INFOID:0000000008457826

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-16, "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

Revision: 2012 September

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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION 

INSPECTION

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< PERIODIC MAINTENANCE >

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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION

Inspection Procedure

INFOID:0000000008457827

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)

Perform ECM self-diagnosis with CONSULT. Refer to 

EC-128, "CONSULT 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 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)

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

PCS-12, "CONSULT 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

Revision: 2012 September

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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

Revision: 2012 September

2013 MURANO

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ALTERNATOR

CHG-27

< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

ALTERNATOR

Exploded View

INFOID:0000000008457828

REMOVAL

DISASSEMBLY

1.

Alternator mounting bolt (lower)

2.

Alternator bracket

3.

Alternator bracket mounting bolt

4.

Alternator connector

5.

Alternator

6.

Alternator mounting nut (lower)

7.

“B” terminal nut

8.

Alternator mounting bolt (upper)

: Vehicle front

Refer to 

GI-4, "Components"

 for symbols in the figure.

JMMIA0590GB

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CHG-28

< REMOVAL AND INSTALLATION >

ALTERNATOR

Type: A003TJ1791

Removal and Installation

INFOID:0000000008457829

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-30, "Removal and Installation"

.

6.

Remove drive belt. Refer to 

EM-16, "Removal and Installation"

.

7.

Remove A/C compressor. Refer to 

HA-36, "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:

JMMIA0851GB

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

Refer to 

GI-4, "Components"

 for symbols in the figure.

Revision: 2012 September

2013 MURANO

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ALTERNATOR

CHG-29

< 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-29, "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:0000000008457830

ALTERNATOR PULLEY INSPECTION

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

JPMIA0831ZZ

Revision: 2012 September

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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:0000000008457831

*: 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

*

Revision: 2012 September

2013 MURANO