Nissan Murano Z51 (2012 year). Manual — part 19
CHG-16
< DTC/CIRCUIT DIAGNOSIS >
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: 2013 February
2012 MURANO
CHG
L TERMINAL CIRCUIT (SHORT)
CHG-17
< DTC/CIRCUIT DIAGNOSIS >
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L TERMINAL CIRCUIT (SHORT)
Description
INFOID:0000000007542153
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:0000000007542154
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
.
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: 2013 February
2012 MURANO
CHG-18
< DTC/CIRCUIT DIAGNOSIS >
S TERMINAL CIRCUIT
S TERMINAL CIRCUIT
Description
INFOID:0000000007542155
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:0000000007542156
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 test
using EXP-800 NI or GR8-1200 NI (if available). Refer to the applicable Instruction Manual for
proper 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
.
NO
>> Check harness for open between alternator and fuse.
Terminals
Voltage (Approx.)
(+)
(–)
Alternator harness connector
Terminal
F60
4
Ground
Battery voltage
Revision: 2013 February
2012 MURANO
CHG
CHARGING SYSTEM
CHG-19
< DTC/CIRCUIT DIAGNOSIS >
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CHARGING SYSTEM
Wiring Diagram - CHARGING SYSTEM -
INFOID:0000000007542157
JCMWM3186GB
Revision: 2013 February
2012 MURANO
CHG-20
< SYMPTOM DIAGNOSIS >
CHARGING SYSTEM
SYMPTOM DIAGNOSIS
CHARGING SYSTEM
Symptom Table
INFOID:0000000007542158
Symptom
Reference
Discharged battery
Refer to
CHG-3, "Work Flow (With EXP-800 NI or GR8-1200 NI)"
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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CHG
PRECAUTIONS
CHG-21
< PRECAUTION >
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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:0000000007795641
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:0000000007795717
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:0000000007805021
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: 2013 February
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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:0000000007805020
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: 2013 February
2012 MURANO
CHG
PREPARATION
CHG-23
< PREPARATION >
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PREPARATION
PREPARATION
Special Service Tools
INFOID:0000000009347246
Commercial Service Tools
INFOID:0000000007542164
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: 2013 February
2012 MURANO
CHG-24
< PERIODIC MAINTENANCE >
CHARGING SYSTEM PRELIMINARY INSPECTION
PERIODIC MAINTENANCE
CHARGING SYSTEM PRELIMINARY INSPECTION
Inspection Procedure
INFOID:0000000007542165
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
.
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: 2013 February
2012 MURANO
CHG
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION
INSPECTION
CHG-25
< PERIODIC MAINTENANCE >
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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION
Inspection Procedure
INFOID:0000000007542166
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
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: 2013 February
2012 MURANO
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: 2013 February
2012 MURANO
CHG
ALTERNATOR
CHG-27
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
ALTERNATOR
Exploded View
INFOID:0000000007542167
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
JMMIA0590GB
Revision: 2013 February
2012 MURANO
CHG-28
< REMOVAL AND INSTALLATION >
ALTERNATOR
Type: A003TJ1791
Removal and Installation
INFOID:0000000007542168
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-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
for symbols in the figure.
Revision: 2013 February
2012 MURANO
CHG
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
.
• 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:0000000007542169
ALTERNATOR PULLEY INSPECTION
Perform the following.
• Make sure that alternator pulley does not rattle.
• Make sure that alternator pulley nut is tight.
JPMIA0831ZZ
Revision: 2013 February
2012 MURANO
CHG-30
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Alternator
INFOID:0000000007542170
*: 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: 2013 February
2012 MURANO
CO-1
ENGINE
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SECTION
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CONTENTS
ENGINE COOLING SYSTEM
SYSTEM DESCRIPTION . . . . . . . ..
DESCRIPTION . . . . . . . . . . . . .
Engine Cooling System . . . . . . . . . . ...
Engine Cooling System Schematic . . . . . .....
SYMPTOM DIAGNOSIS . . . . . . . ...
OVERHEATING CAUSE ANALYSIS . . . . ..
Troubleshooting Chart . . . . . . . . . . . ..
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
FOR USA AND CANADA . . . . . . . . . . ....
FOR USA AND CANADA : Liquid Gasket . . . ....
FOR MEXICO . . . . . . . . . . . . . . . ..
FOR MEXICO : Liquid Gasket . . . . . . . . ..
PREPARATION . . . . . . . . . . ...
PREPARATION . . . . . . . . . . . . ..
Special Service Tool . . . . . . . . . . . ...
Commercial Service Tools . . . . . . . . . .
PERIODIC MAINTENANCE . . . . . . .
ENGINE COOLANT . . . . . . . . . . ...
Inspection . . . . . . . . . . . . . . . .
Draining . . . . . . . . . . . . . . . . ...
Refilling . . . . . . . . . . . . . . . . ...
Flushing . . . . . . . . . . . . . . . . ...
RADIATOR . . . . . . . . . . . . . . .
RADIATOR CAP . . . . . . . . . . . . . .
RADIATOR CAP : Inspection . . . . . . . . ..
RADIATOR . . . . . . . . . . . . . . . . .
RADIATOR : Inspection . . . . . . . . . . ...
REMOVAL AND INSTALLATION . . . ...
RADIATOR . . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
COOLING FAN . . . . . . . . . . . . ..
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Disassembly and Assembly . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
WATER PUMP . . . . . . . . . . . . ..
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
WATER INLET AND THERMOSTAT ASSEM-
BLY . . . . . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
WATER OUTLET AND WATER PIPING . . ..
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Periodical Maintenance Specification . . . . . ..
Radiator . . . . . . . . . . . . . . . . ...
Revision: 2013 February
2012 MURANO
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