Nissan Murano Z51 (2008 year). Manual - part 83

BRM-48

< REMOVAL AND INSTALLATION >

REPLACEMENT OPERATIONS

View A: Outer sill reinforcement and lower front pillar reinforcement assembly (replacement parts)
View B: Before installing outer sill

1.

Urethane foam

Unit: mm (in)

: Vehicle front

Replacement parts

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Outer front side body (LH)

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Outer sill reinforcement (LH)

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Lower front pillar reinforcement as-
sembly (LH)

JSKIA0535GB

Revision: 2008 October

2009 Murano

REPLACEMENT OPERATIONS

BRM-49

< REMOVAL AND INSTALLATION >

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View D: Before installing outer sill and center pillar reinforcement
View H: Before installing outer sill
View K: Before installing outer sill reinforcement

Unit: mm (in)

: Vehicle front

JSKIA0536GB

Revision: 2008 October

2009 Murano

BRM-50

< REMOVAL AND INSTALLATION >

REPLACEMENT OPERATIONS

View N and Q: Before installing outer sill
View O: Before installing center pillar reinforcement
View P: Before installing outer sill reinforcement

Rear Fender

INFOID:0000000003468475

Remove the outer back pillar and rear combination lamp base from the rear fender assembly service part for
easier installation.

Unit: mm (in)

: Vehicle front

JSKIA0537GB

Revision: 2008 October

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REPLACEMENT OPERATIONS

BRM-51

< REMOVAL AND INSTALLATION >

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1.

Urethane foam

2.

Adhesive

Unit: mm (in)

: Vehicle front

Replacement parts

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Rear fender assembly (LH)

JSKIA0538GB

Revision: 2008 October

2009 Murano

BRM-52

< REMOVAL AND INSTALLATION >

REPLACEMENT OPERATIONS

Unit: mm (in)

: Vehicle front

JSKIA0539GB

Revision: 2008 October

2009 Murano

REPLACEMENT OPERATIONS

BRM-53

< REMOVAL AND INSTALLATION >

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Rear Panel

INFOID:0000000003468476

Rear Floor Rear

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Work after rear panel is removed.
Remove the rear seat back support (reusable).

: Vehicle front

: An equivalent welding portion with the same dimensions is on the opposite side.

Replacement parts

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Rear panel assembly

JSKIA0540ZZ

Revision: 2008 October

2009 Murano

BRM-54

< REMOVAL AND INSTALLATION >

REPLACEMENT OPERATIONS

View A: Before installing rear seat back support

1.

Rear seat back support

Unit: mm (in)

: Vehicle front

: An equivalent welding portion with the same dimensions is on the opposite side.

Replacement parts

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Rear floor rear

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Spare tire clamp bracket

JSKIA0541GB

Revision: 2008 October

2009 Murano

REPLACEMENT OPERATIONS

BRM-55

< REMOVAL AND INSTALLATION >

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Rear Side Member Extension

INFOID:0000000003468478

Work after rear panel is removed.

1.

Rear seat back support

: Vehicle front

JSKIA0542ZZ

Revision: 2008 October

2009 Murano

BRM-56

< REMOVAL AND INSTALLATION >

REPLACEMENT OPERATIONS

: Vehicle front

Replacement parts

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Rear side member extension (LH)

JSKIA0543ZZ

Revision: 2008 October

2009 Murano

CHG

CHG-1

ELECTRICAL & POWER CONTROL

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SECTION 

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CONTENTS

CHARGING SYSTEM

BASIC INSPECTION  ....................................

2

DIAGNOSIS AND REPAIR WORKFLOW  ..........

2

Work Flow  .................................................................

2

FUNCTION DIAGNOSIS ...............................

5

CHARGING SYSTEM ..........................................

5

System Diagram ........................................................

5

System Description  ...................................................

5

Component Parts Location ........................................

5

Component Description ............................................

5

POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM .................................

7

System Diagram ........................................................

7

System Description  ...................................................

7

Component Parts Location ........................................

7

Component Description .............................................

8

COMPONENT DIAGNOSIS  ..........................

9

B TERMINAL CIRCUIT  .......................................

9

Description ................................................................

9

Diagnosis Procedure .................................................

9

L TERMINAL CIRCUIT (OPEN)  .........................

10

Description ..............................................................

10

Diagnosis Procedure ...............................................

10

L TERMINAL CIRCUIT (SHORT) .......................

12

Description ..............................................................

12

Diagnosis Procedure ...............................................

12

S TERMINAL CIRCUIT  ......................................

13

Description ..............................................................

13

Diagnosis Procedure ...............................................

13

CHARGING SYSTEM .........................................

14

Wiring Diagram - CHARGING SYSTEM -  ...............

14

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

18

CHARGING SYSTEM  .......................................

18

Symptom Table  .......................................................

18

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

19

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

19

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

19

Precaution for Power Generation Voltage Variable 
Control System  ........................................................

19

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

20

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

20

Special Service Tools  ..............................................

20

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

20

ON-VEHICLE MAINTENANCE ....................

21

CHARGING SYSTEM PRELIMINARY IN-
SPECTION ........................................................

21

Inspection Procedure ...............................................

21

POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM OPERATION IN-
SPECTION ........................................................

22

Inspection Procedure ...............................................

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ON-VEHICLE REPAIR .................................

24

ALTERNATOR ..................................................

24

CHG

DIAGNOSIS AND REPAIR WORKFLOW

CHG-3

< BASIC INSPECTION >

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NOTE:
To ensure a complete and thorough diagnosis, the battery, starter and alternator test segments must be done
as a set from start to finish.

1.

PRELIMINARY INSPECTION

Perform the preliminary inspection. Refer to 

CHG-21, "Inspection Procedure"

.

>> GO TO 2.

2.

STOP POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

Stop the operation of the power generation voltage variable control in either of the following procedures.
• After selecting “ENGINE” of “SELECT SYSTEM” using CONSULT-III, set the DUTY value of “ALTERNATOR

DUTY” to 0 % by selecting “ALTERNATOR DUTY” of “Active Test”. Continue “Active Test” until the end of
inspection. (When the DUTY value is 0 or 100 %, the normal power generation is performed according to the
characteristic of the IC voltage regulator of the alternator.)

• Turn the ignition switch OFF, and disconnect the battery current sensor connector. [However, DTC (P1550 -

P1554) of the engine might remain. After finishing the inspection, connect the battery current sensor connec-
tor and erase the self-diagnostic results history of the engine using CONSULT-III.]

>> GO TO 3.

3.

DIAGNOSIS WITH STARTING/CHARGING SYSTEM TESTER

Perform the charging system test using Starting/Charging System Tester (SST: J-44373). For details and oper-
ating instructions, refer to Technical Service Bulletin.

Test result

CHARGING SYSTEM NORMAL>>Charging system is normal and will also show “DIODE RIPPLE” test

result.

NO CHARGING VOLTAGE>>GO TO 4.
LOW CHARGING VOLTAGE>>GO TO 12.
HIGH CHARGING VOLTAGE>>GO TO 14.
DIODE RIPPLE NORMAL>>Diode ripple is OK and will also show “CHARGING VOLTAGE” test result.
EXCESS RIPPLE DETECTED>>Replace the alternator. Perform “DIODE RIPPLE” test again using Starting/

Charging System Tester (SST: J-44373) to confirm repair.

DIODE RIPPLE NOT DETECTED>>GO TO 4.

4.

INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)

Turn the ignition switch ON.

Does the charge warning lamp illuminate?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

“L” TERMINAL CIRCUIT (OPEN) INSPECTION

Check “L” terminal circuit (open). Refer to 

CHG-10, "Diagnosis Procedure"

.

Is the “L” terminal circuit normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

6.

INSPECTION WITH CHARGE WARNING LAMP (IDLING)

Start the engine and run it at idle.

Does the charge warning lamp turn OFF?

YES

>> GO TO 9.

NO

>> GO TO 7.

7.

“L” TERMINAL CIRCUIT (SHORT) INSPECTION

Check “L” terminal circuit (short). Refer to 

CHG-12, "Diagnosis Procedure"

.

Is the “L” terminal circuit normal?

YES

>> GO TO 8.

NO

>> Repair as needed.

Revision: 2008 October

2009 Murano

CHG-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

8.

“S” TERMINAL CIRCUIT INSPECTION

Check “S” terminal circuit. Refer to 

CHG-13, "Diagnosis Procedure"

.

Is the “S” terminal circuit normal?

YES

>> GO TO 10.

NO

>> Repair as needed.

9.

INSPECTION WITH CHARGE WARNING LAMP (ENGINE AT 3,000 RPM)

Increase and maintain the engine speed at 3,000 rpm.

Does the charge warning lamp remain off?

YES

>> GO TO 11.

NO

>> GO TO 10.

10.

INSPECTION OF ALTERNATOR PULLEY

Check alternator pulley. Refer to 

CHG-26, "Inspection"

.

Is alternator pulley normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

11.

“B” TERMINAL CIRCUIT INSPECTION

Check “B” terminal circuit. Refer to 

CHG-9, "Diagnosis Procedure"

.

Is “B” terminal circuit normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

12.

“B” TERMINAL CIRCUIT INSPECTION

Check “B” terminal circuit. Refer to 

CHG-9, "Diagnosis Procedure"

.

Is “B” terminal circuit normal?

YES

>> GO TO 13.

NO

>> Repair as needed.

13.

INSPECTION OF ALTERNATOR PULLEY

Check alternator pulley. Refer to 

CHG-26, "Inspection"

.

Is alternator pulley normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

14.

“S” TERMINAL CIRCUIT INSPECTION

Check “S” terminal circuit. Refer to 

CHG-13, "Diagnosis Procedure"

.

Is the “S” terminal circuit normal?

YES

>> Replace alternator.

NO

>> Repair as needed.

Revision: 2008 October

2009 Murano

CHG

CHARGING SYSTEM

CHG-5

< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

CHARGING SYSTEM

System Diagram

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System Description

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 The voltage output is controlled by the IC voltage regulator.

Component Parts Location

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Component Description

INFOID:0000000003412937

JPMIA0426GB

1.

Alternator

2.

Charge warning lamp

A.

Cylinder block left side

B.

Combination meter

JPLIA0887ZZ

Revision: 2008 October

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CHG-6

< FUNCTION DIAGNOSIS >

CHARGING SYSTEM

Component part

Description

Alternator

The alternator provides DC voltage to operate the vehicle's electri-
cal system and to keep the battery charged.

Combination meter (Charge warning lamp)

The IC voltage regulator warning function activates to illuminate 
the charge warning lamp, if any of the following symptoms occur 
while alternator is operating:
• Excessive voltage is produced.
• No voltage is produced.

Revision: 2008 October

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CHG

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

CHG-7

< FUNCTION DIAGNOSIS >

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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

System Diagram

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System Description

INFOID:0000000003412939

By performing the power generation voltage variable control, the engine load due to the power generation of
the alternator is reduced and fuel consumption is decreased.
NOTE:
When any malfunction is detected in the power generation voltage variable control system, the power genera-
tion is performed according to the characteristic of the IC voltage regulator of the alternator.

Component Parts Location

INFOID:0000000003412940

JPMIA0632GB

1.

ECM

2.

IPDM E/R

3.

Battery current sensor

4.

Alternator

A.

Engine room dash panel (LH)

B.

Battery

C.

Cylinder block left side

JPLIA0888ZZ

Revision: 2008 October

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CHG-8

< FUNCTION DIAGNOSIS >

POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM

Component Description

INFOID:0000000003412941

Component part

Description

Battery current sensor

Battery current sensor is installed to the battery cable at the neg-
ative terminal, and it detects the charging/discharging current of 
the battery and sends the voltage signal to ECM according to the 
current value.

ECM

Battery current sensor detects the charging/discharging current of 
the battery. ECM judges the battery condition based on this signal.
ECM judges whether to perform the power generation voltage 
variable control according to the battery condition.
When performing the power generation voltage variable control, 
ECM calculates the target power generation voltage according to 
the battery condition and sends the calculated value as the power 
generation command value to IPDM E/R.

IPDM E/R

IPDM E/R converts the received power generation command val-
ue into the power generation command signal (PWM signal) and 
sends it to the IC voltage regulator.

Alternator (IC voltage regulator)

IC voltage regulator controls the power generation voltage by the 
target power generation voltage based on the received power gen-
eration command signal.
When there is no power generation command signal, the alterna-
tor performs the normal power generation according to the char-
acteristic of the IC voltage regulator.

Revision: 2008 October

2009 Murano