Nissan Murano Z50 (2003 year). Manual — part 261
SB-8
SEAT BELTS
Revision; 2004 April
2003 Murano
SEAT BELT RETRACTOR ON-VEHICLE INSPECTION
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop)
the retractor will lock and prevent the webbing from extending any further. All 3-point type seat belt retractors
except the driver's seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also
called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt
is fully extended. When the webbing is then retracted partially, the ALR mode automatically locks the seat belt
in a specific position so the webbing cannot be extended any further. To cancel the ALR mode, allow the seat
belt to fully wind back into the retractor.
Check the seat belt retractors using the following test(s) to determine if a retractor assembly is operating prop-
erly.
ELR Function Stationary Inspection
Grasp the shoulder webbing and pull forward quickly. The retractor should lock and prevent the belt from
extending further.
ALR Function Stationary Inspection
1.
Pull out entire length of seat belt from retractor until a click is heard.
2.
Retract the webbing partially. A clicking noise should be heard as the webbing retracts indicating that the
retractor is in the Automatic Locking Retractor (ALR) mode.
3.
Grasp the seat belt and try to pull out the retractor. The webbing must lock and not extend any further. If
necessary replace the retractor assembly.
4.
Allow the entire length of the webbing to retract to cancel the automatic locking mode.
ELR Function Moving Inspection
WARNING:
Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a
large, empty parking lot). Road surface must be paved and dry. DO NOT perform the following test on
wet or gravel roads or on public streets and highways. This could result in an accident and serious
personal injury. The driver and passenger must be prepared to brace themselves in the event the
retractor does not lock.
1.
Fasten driver's seat belt. Buckle a passenger into the seat for the belt that is to be tested.
2.
Proceed to the designated safe area.
3.
Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of a pending sudden stop.
The driver and passenger must be prepared to brace themselves in the event the retractor does not lock.
Apply brakes firmly and make a very hard stop.
During stop, seat belts should lock and not be extended. If the seat belt retractor assembly does not lock, per-
form the retractor off-vehicle inspection.
SEAT BELTS
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SEAT BELT RETRACTOR OFF-VEHICLE INSPECTION
1.
Remove the seat belt retractor assembly.
2.
Slowly pull out webbing while tilting the retractor assembly forward from the mounted position without
twisting the retractor assembly as shown in the figure.
If NG, replace the retractor assembly.
15 degrees or less tilt
: Webbing can be pulled out.
35 degrees or more tilt
: Webbing locks and cannot be pulled out.
PHIA0257E
SB-10
SEAT BELTS
Revision; 2004 April
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SC-1
STARTING & CHARGING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
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STARTING & CHARGING SYSTEM
PRECAUTIONS . . . . . . . . . . . . . . .. 2
PREPARATION . . . . . . . . . . . . . . ... 3
Special Service Tools . . . . . . . . . . . ... 3
Commercial Service Tools . . . . . . . . . . 3
BATTERY . . . . . . . . . . . . . . . . . 4
How to Handle Battery . . . . . . . . . . . . 4
Trouble Diagnosis with Battery/Starting/Charging
System Tester . . . . . . . . . . . . . . .. 6
DIAGNOSTIC RESULT ITEM CHART . . . . .. 8
Removal and Installation . . . . . . . . . . .. 9
REMOVAL . . . . . . . . . . . . . . . . 9
INSTALLATION . . . . . . . . . . . . . . 9
STARTING SYSTEM . . . . . . . . . . . . 10
Removal and Installation . . . . . . . . . . 16
REMOVAL . . . . . . . . . . . . . . ... 16
INSTALLATION . . . . . . . . . . . . ... 16
Disassembly and Assembly . . . . . . . . . 17
Inspection After Disassembly . . . . . . . . . 17
PINION/CLUTCH CHECK . . . . . . . . ... 17
CHARGING SYSTEM . . . . . . . . . . . ... 18
Removal and Installation . . . . . . . . . . 27
REMOVAL . . . . . . . . . . . . . . ... 27
INSTALLATION . . . . . . . . . . . . ... 28
Disassembly and Assembly . . . . . . . . . 29
SC-2
PRECAUTIONS
Revision; 2004 April
2003 Murano
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007KT
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 and SB section of this Service Man-
ual.
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 per-
formed by an authorized NISSAN/INFINITI dealer.
●
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
●
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Wiring Diagrams and Trouble Diagnosis
AKS004ET
When you read wiring diagrams, refer to the following:
●
Refer to
GI-14, "How to Read Wiring Diagrams"
●
Refer to
PG-3, "POWER SUPPLY ROUTING CIRCUIT"
for power distribution circuit in PG section.
When you perform trouble diagnosis, refer to the following:
●
Refer to
GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
in GI section.
●
Refer to
GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"
PREPARATION
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PREPARATION
PFP:00002
Special Service Tools
AKS004EU
Commercial Service Tools
AKS004EV
Tool number
Tool name
Description
J-44373 Model 620
Battery/Starting/Charging system
tester
SEL403X
Tool number
Tool name
Description
Power tool
Loosening bolts and nuts
PBIC0190E
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BATTERY
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BATTERY
PFP:AYBGL
How to Handle Battery
AKS004EW
CAUTION:
●
If it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt
booster battery.
●
After connecting battery cables, ensure that they are tightly clamped to battery terminals for good
contact.
METHODS OF PREVENTING OVER-DISCHARGE
The following precautions must be taken to prevent over-discharging
a battery.
●
The battery surface (particularly its top) should always be kept
clean and dry.
●
The terminal connections should be clean and tight.
●
At every routine maintenance, check the electrolyte level.
This also applies to batteries designated as “low maintenance”
and “maintenance-free”.
●
When the vehicle is not going to be used over a long period of
time, disconnect the negative battery terminal.
●
Check the charge condition of the battery.
Periodically check the specific gravity of the electrolyte. Keep a
close check on charge condition to prevent over-discharge.
MEL040F
MEL041F
MEL042F
BATTERY
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CHECKING ELECTROLYTE LEVEL
WARNING:
Do not allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touch-
ing a battery, do not touch or rub your eyes until you have thoroughly washed your hands. If acid con-
tacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.
●
Remove the cell plug using a suitable tool.
●
Add distilled water up to the MAX level.
Sulphation
A battery will be completely discharged if it is left unattended
for a long time and the specific gravity will become less than
1.100. This may result in sulphation on the cell plates.
To determine if a battery has been “sulphated”, note its voltage
and current when charging it. As shown in the figure, less cur-
rent and higher voltage are observed in the initial stage of
charging sulphated batteries.
A sulphated battery may sometimes be brought back into ser-
vice by means of a long, slow charge, 12 hours or more, fol-
lowed by a battery capacity test.
SPECIFIC GRAVITY CHECK
1.
Read hydrometer and thermometer indications at eye level.
2.
Use the chart below to correct your hydrometer reading accord-
ing to electrolyte temperature.
Hydrometer Temperature Correction
MEL043F
PKIA2353E
MEL042FA
Battery electrolyte temperature
°
C (
°
F)
Add to specific gravity reading
71 (160)
0.032
66 (150)
0.028
60 (140)
0.024
54 (130)
0.020
49 (120)
0.016
43 (110)
0.012
38 (100)
0.008
32 (90)
0.004
27 (80)
0
21 (70)
−
0.004
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BATTERY
Revision; 2004 April
2003 Murano
CHARGING THE BATTERY
CAUTION:
●
Do not “quick charge” a fully discharged battery.
●
Keep the battery away from open flame while it is being charged.
●
When connecting the charger, connect the leads first, then turn on the charger. Do not turn on the
charger first, as this may cause a spark.
●
If battery electrolyte temperature rises above 55
°
C (131
°
F), stop charging. Always charge battery
at a temperature below 55
°
C (131
°
F).
Charging Rates
Do not charge at more than 50 ampere rate.
NOTE:
The ammeter reading on your battery charger will automatically decrease as the battery charges. This indi-
cates that the voltage of the battery is increasing normally as the state of charge improves. The charging amps
indicated above refer to initial charge rate.
●
If, after charging, the specific gravity of any two cells varies more than 0.050, the battery should be
replaced.
Trouble Diagnosis with Battery/Starting/Charging System Tester
AKS004EX
CAUTION:
When working with batteries, always wear appropriate eye protection.
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.
●
If battery surface charge is detected while testing, the tester will prompt you to turn on the headlamps to
remove the surface charge.
●
If necessary, the tester will prompt you to determine if the battery temperature is above or below 0
°
C
(32
°
F). Choose the appropriate selection by pressing the up or down arrow button, then press “ENTER” to
make the selection.
16 (60)
−
0.008
10 (50)
−
0.012
4 (40)
−
0.016
−
1 (30)
−
0.020
−
7 (20)
−
0.024
−
12 (10)
−
0.028
−
18 (0)
−
0.032
Corrected specific gravity
Approximate charge condition
1.260 - 1.280
Fully charged
1.230 - 1.250
3/4 charged
1.200 - 1.220
1/2 charged
1.170 - 1.190
1/4 charged
1.140 - 1.160
Almost discharged
1.110 - 1.130
Completely discharged
Battery electrolyte temperature
°
C (
°
F)
Add to specific gravity reading
Amps
Time
50
1 hour
25
2 hours
10
5 hours
5
10 hours
BATTERY
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1.
Turn off all loads on the vehicle electrical system. Clean or repair
as necessary.
2.
Visually inspect the battery, battery terminals and cable ends
with ignition switch in “OFF” position.
NOTE:
The contact surface between the battery terminals, cable ends
and tester leads must be clean for a valid test. A poor connec-
tion will prevent testing and a “CHECK CONNECTION” mes-
sage will appear during the test procedures. If this occurs, clean
the battery post and terminals, reconnect them and restart the
test.
3.
Connect the red tester lead clamp to the positive battery termi-
nal, and the black to the negative terminal.
4.
The tester will turn on automatically. Using the arrow keys,
select “IN-VEHICLE” on the tester and then press the “ENTER”
key.
5.
Locate the battery type and rating stamped or written on the top
case of the battery to be tested.
NOTE:
The battery type and rating will have either of the following.
CCA: Cold Cranking Amps (490 CCA, 550 CCA, etc.)
JIS: Japanese Industrial Standard.
Battery is stamped with a number such as:
80D26L: 80 (rank of output), D (physical size-depth), 26 (width
in cm). The last character L (post configuration) is not input into
the tester.
The tester requires the rating for the battery be entered exactly
as it is written or stamped on the battery. Do not attempt a CCA
conversion for JIS stamped batteries. JIS must be input directly.
6.
Using the arrow and “ENTER” keys alternately, select the battery type and rating.
NOTE:
The tester lists five choices; CCA, JIS, IEC, DIN, and EN. Only use CCA or JIS.
7.
Press “ENTER” to begin the test. Diagnosis results are dis-
played on the tester. Refer to
.
SEL404X
SEL405X
SEL406X
SEL407X
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BATTERY
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8.
Press “ENTER”, then test output code is displayed. Record the
test output code on the repair order.
9.
Toggle back to the “DIAGNOSTIC SCREEN” for test results.
NOTE:
●
If necessary, the tester will ask the user to determine if the
battery has just been charged. Choose the appropriate selec-
tion by pressing the up or down arrow button and then press
the “ENTER” button to make the selection.
●
When testing a battery installed in a vehicle that has recently
been driven, select “BEFORE CHARGE”.
●
If the battery has just been slow charged due to a “CHARGE
& RETEST” decision by the tester, and the tester asks the user “BEFORE CHARGE/AFTER
CHARGE”, select “AFTER CHARGE”.
DIAGNOSTIC RESULT ITEM CHART
SEL576X
Diagnostic item
Service procedure
GOOD BATTERY
Battery is OK, go to “Trouble Diagnosis”,“STARTING SYSTEM”. Refer to
Diagnosis with Battery/Starting/Charging System Tester"
REPLACE BATTERY
Replace battery.
Before replacing battery, clean the battery cable clamps and battery posts. Perform battery
test again with Battery/Starting/Charging system tester. If second test result is “Replace Bat-
tery”, then do so. Perform battery test again to confirm repair.
BAD CELL-REPLACE
Replace the battery. Perform battery test again with Battery/Starting/Charging system tester
to confirm repair.
GOOD-RECHARGE
Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.)
CHARGE & RETEST
Perform the slow battery charging. (Initial rate of charge is 10A for 12 hours.)
Perform battery test again with Battery/Starting/Charging system tester to confirm repair.
NOTE:
If the tester asks the user “BEFORE CHARGE/AFTER CHARGE”, select “AFTER
CHARGE”.
BATTERY
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Removal and Installation
AKS004EY
REMOVAL
1.
Disconnect negative battery terminal and positive battery termi-
nal.
CAUTION:
When disconnecting, disconnect negative battery terminal
first.
2.
Remove battery fix frame mounting nuts and battery fix frame.
3.
Remove battery cover.
4.
Remove battery.
5.
Remove battery tray.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
When connecting, connect positive battery terminal first.
PKIA2421E
Battery fix frame mounting nut
: 3.9 N·m (0.4 kg-m, 35 in-lb)
Battery terminal nut
: 5.4 N·m (0.55 kg-m, 48 in-lb)
SC-10
STARTING SYSTEM
Revision; 2004 April
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STARTING SYSTEM
PFP:23300
System Description
AKS004EZ
Power is supplied at all times:
●
through 40A fusible link (letter M, located in the fuse and fusible link box)
●
to ignition switch terminal 1
●
through 15A fuse (No. 73, located in the IPDM E/R)
●
to CPU of IPDM E/R.
With the ignition switch in the ON or START position, power is supplied:
●
through 10A fuse (No. 80, located in the IPDM E/R)
●
to CPU of IPDM E/R.
When the selector lever in the P or N position, power is supplied:
●
from TCM terminal 24
●
to IPDM E/R terminal 43.
Ground is supplied:
●
to IPDM E/R terminals 14, 45 and 46
●
from body grounds E13 and E28.
Then starter relay is turn ON.
With the ignition switch in the START position, IPDM E/R is energized and power is supplied:
●
from ignition switch terminal 5
●
to IPDM E/R terminal 11 and
●
through IPDM E/R terminal 4
●
to starter motor terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.
STARTING SYSTEM
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Wiring Diagram — START —
AKS004F0
TKWA0734E
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STARTING SYSTEM
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2003 Murano
Trouble Diagnosis with Battery/Starting/Charging System Tester
AKS004F1
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.
Turn off all loads on the vehicle electrical system.
2.
Perform battery test with Battery/Starting/Charging system
tester. Refer to
SC-6, "Trouble Diagnosis with Battery/Starting/
3.
Press “ENTER” to begin the starting system test.
4.
Start the engine.
5.
Diagnosis result is displayed on the tester. Refer to
"DIAGNOSTIC RESULT ITEM CHART"
.
NOTE:
●
If the starter performs normally but the engine does not start,
perform engine diagnosis.
●
For intermittent “NO CRANK” or “NO STARTER OPERA-
TION” incidents, refer to
DIAGNOSTIC RESULT ITEM CHART
SEL408X
SEL409X
SEL410X
Diagnostic item
Service procedure
CRANKING VOLTAGE NORMAL
Go to
CRANKING VOLTAGE LOW
CHARGE BATTERY
Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Per-
form battery test again with Battery/Starting/Charging system tester. Refer to
Diagnosis with Battery/Starting/Charging System Tester"
.
REPLACE BATTERY
Before replacing battery, clean the battery cable clamps and battery posts. Perform battery
test again with Battery/Starting/Charging system tester. Refer to
with Battery/Starting/Charging System Tester"
. If second test result is “REPLACE BAT-
TERY”, then do so. Perform battery test again to confirm repair.
STARTING SYSTEM
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WORK FLOW
*1
SC-6, "Trouble Diagnosis with Bat-
tery/Starting/Charging System
Tester"
.
*2
SC-15, "MINIMUM SPECIFICATION
OF CRANKING VOLTAGE REFER-
ENCING COOLANT TEMPERA-
TURE"
*3
SC-14, "DIAGNOSTIC PROCE-
DURE 1"
*4
SC-15, "DIAGNOSTIC PROCE-
DURE 2"
.
SKIB0227E
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