Nissan Murano Z51 (2008 year). Manual — part 170
EC-536
< SYMPTOM DIAGNOSIS >
[VQ35DE]
ENGINE CONTROL SYSTEM SYMPTOMS
1 - 6: The numbers refer to the order of inspection.
Exhaust
Exhaust manifold/Tube/Muffler/
Gasket
5
5
5
5
5
5
5
5
Three way catalyst
Lubrica-
tion
Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler
5
5
5
5
5
5
5
5
Oil level (Low)/Filthy oil
Cooling
Radiator/Hose/Radiator filler cap
5
5
5
5
5
5
5
4
5
,
Thermostat
5
Water pump
Water gallery
Cooling fan
5
Coolant level (Low)/Contaminat-
ed coolant
NVIS (NISSAN Vehicle Immobilizer System —
NATS)
1
1
,
SYMPTOM
Reference
page
HARD/NO S
T
A
R
T/RES
T
A
R
T (E
XCP
. HA)
E
N
GINE
ST
ALL
HES
IT
A
TION/SURGING/FLA
T
SPOT
S
P
ARK KNOC
K
/DET
O
NA
TI
ON
LACK OF
POWER/POOR ACCELERA
TION
HIG
H
IDL
E
/L
OW
ID
LE
ROUGH IDLE/HUNTING
ID
LING VI
BRA
T
ION
S
L
OW/NO RETU
RN
T
O ID
LE
OVERHEA
T
S
/W
A
TER TEMPERA
T
URE HIG
H
E
XCESSIVE
FUEL CON
S
UMP
T
ION
E
XCESSIVE
OIL
C
O
NSUMP
T
ION
B
A
TTER
Y
DEAD (UNDER CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
HA
Revision: 2008 October
2009 Murano
NORMAL OPERATING CONDITION
EC-537
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NORMAL OPERATING CONDITION
Description
INFOID:0000000003388293
FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED)
If the engine speed is above 1,400 rpm under no load (for example, the selector lever position is P or N and
engine speed is over 1,400 rpm) fuel will be cut off after some time. The exact time when the fuel is cut off var-
ies based on engine speed.
Fuel cut will be operated until the engine speed reaches 1,000 rpm, then fuel cut will be cancelled.
NOTE:
This function is different from deceleration control listed under Multiport Fuel Injection (MFI) System,
Revision: 2008 October
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EC-538
< PRECAUTION >
[VQ35DE]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003388294
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 SR 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 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 the SR 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 har-
ness connectors.
Precautions For Xenon Headlamp Service
INFOID:0000000003388295
WARNING:
Comply with the following warnings to prevent any serious accident.
• Disconnect the battery cable (negative terminal) or the power supply fuse before installing, remov-
ing, or touching the xenon headlamp (bulb included). The xenon headlamp contains high-voltage
generated parts.
• Never work with wet hands.
• Check the xenon headlamp ON-OFF status after assembling it to the vehicle. Never turn the xenon
headlamp ON in other conditions. Connect the power supply to the vehicle-side connector.
(Turning it ON outside the lamp case may cause fire or visual impairments.)
• Never touch the bulb glass immediately after turning it OFF. It is extremely hot.
CAUTION:
Comply with the following cautions to prevent any error and malfunction.
• Install the xenon bulb securely. (Insufficient bulb socket installation may melt the bulb, the connec-
tor, the housing, etc. by high-voltage leakage or corona discharge.)
• Never perform HID circuit inspection with a tester.
• Never touch the xenon bulb glass with hands. Never put oil and grease on it.
• Dispose of the used xenon bulb after packing it in thick vinyl without breaking it.
• Never wipe out dirt and contamination with organic solvent (thinner, gasoline, etc.).
Precaution for Procedure without Cowl Top Cover
INFOID:0000000003388296
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
PIIB3706J
Revision: 2008 October
2009 Murano
PRECAUTIONS
EC-539
< PRECAUTION >
[VQ35DE]
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On Board Diagnostic (OBD) System of Engine and CVT
INFOID:0000000003388297
The ECM has an on board diagnostic system. It will illuminate the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Always to turn the ignition switch OFF and disconnect the negative battery cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MIL to illuminate.
• Always to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to illuminate due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to
.
• Always route and secure the harnesses properly after work. The interference of the harness with a
bracket, etc. may cause the MIL to illuminate due to the short circuit.
• Always to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to illuminate due to the malfunction of the EVAP system or fuel injection system,
etc.
• Always to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
General Precautions
INFOID:0000000003388298
• Always use a 12 volt battery as power source.
• Never attempt to disconnect battery cables while engine is
running.
• Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative bat-
tery cable. Failure to do so may damage the ECM because
battery voltage is applied to ECM even if ignition switch is
turned OFF.
• Before removing parts, turn ignition switch OFF and then dis-
connect battery ground cable.
• Never disassemble ECM.
• If a battery cable is disconnected, the memory will return to the ECM value.
The ECM will now start to self-control at its initial value. Thus, engine operation can vary slightly in
this case. However, this is not an indication of a malfunction. Never replace parts because of a slight
variation.
• If the battery is disconnected, the following emission-related diagnostic information will be lost
within 24 hours.
- Diagnostic trouble codes
- 1st trip diagnostic trouble codes
- Freeze frame data
- 1st trip freeze frame data
- System readiness test (SRT) codes
- Test values
• When connecting ECM harness connector, fasten (B) it
securely with a lever (1) as far as it will go as shown in the fig-
ure.
- ECM (2)
- Loosen (A)
SEF289H
PBIB2947E
Revision: 2008 October
2009 Murano
EC-540
< PRECAUTION >
[VQ35DE]
PRECAUTIONS
• When connecting or disconnecting pin connectors into or
from ECM, never damage pin terminals (bends or break).
Check that there are not any bends or breaks on ECM pin ter-
minal, when connecting pin connectors.
• Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge) volt-
age to develop in coil and condenser, thus resulting in dam-
age to ICs.
• Keep engine control system harness at least 10 cm (4 in) away
from adjacent harness, to prevent engine control system mal-
functions due to receiving external noise, degraded operation
of ICs, etc.
• Keep engine control system parts and harness dry.
• Before replacing ECM, perform ECM Terminals and Reference
Value inspection and check ECM functions properly. Refer to
.
• Handle mass air flow sensor carefully to avoid damage.
• Never clean mass air flow sensor with any type of detergent.
• Never disassemble electric throttle control actuator.
• Even a slight leakage in the air intake system can cause seri-
ous incidents.
• Never shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).
• After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Component Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Component Func-
tion Check should be a good result if the repair is completed.
PBIB0090E
MEF040D
SEF217U
Revision: 2008 October
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PRECAUTIONS
EC-541
< PRECAUTION >
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• When measuring ECM signals with a circuit tester, never allow
the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
• B1 indicates bank 1, B2 indicates bank 2 as shown in the fig-
ure.
• Never operate fuel pump when there is no fuel in lines.
• Tighten fuel hose clamps to the specified torque.
• Never depress accelerator pedal when starting.
• Immediately after starting, never rev up engine unnecessarily.
• Never rev up engine just prior to shutdown.
SEF348N
SEC893C
SEF709Y
Revision: 2008 October
2009 Murano
EC-542
< PRECAUTION >
[VQ35DE]
PRECAUTIONS
• When installing C.B. ham radio or a mobile phone, be sure to
observe the following as it may adversely affect electronic
control systems depending on installation location.
- Keep the antenna as far as possible from the electronic con-
trol units.
- Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Never let them run parallel for a long distance.
- Adjust the antenna and feeder line so that the standing-wave
ratio can be kept smaller.
- Be sure to ground the radio to vehicle body.
SEF708Y
Revision: 2008 October
2009 Murano
PREPARATION
EC-543
< PREPARATION >
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PREPARATION
PREPARATION
Special Service Tools
INFOID:0000000003388299
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools
INFOID:0000000003388300
Tool number
(Kent-Moore No.)
Tool name
Description
(J-44321)
Fuel pressure gauge
kit
Checks fuel pressure
(J-44321-6)
Fuel pressure adapter
Connects fuel pressure gauge to quick connector
type fuel lines
LEC642
LBIA0376E
Tool name
(Kent-Moore No.)
Description
(J-45488)
Quick connector re-
lease
Removes fuel tube quick connectors in engine
room
Leak detector
i.e.: (J-41416)
Locates the EVAP leakage
EVAP service port
adapter
i.e.: (J-41413-OBD)
Applys positive pressure through EVAP service
port
PBIC0198E
S-NT703
S-NT704
Revision: 2008 October
2009 Murano
EC-544
< PREPARATION >
[VQ35DE]
PREPARATION
Fuel filler cap adapter
i.e.: (MLR-8382)
Checks fuel tank vacuum relief valve opening
pressure
Socket wrench
Removes and installs engine coolant temperature
sensor
Oxygen sensor thread
cleaner
i.e.: (J-43897-18)
(J-43897-12)
Reconditions the exhaust system threads before
installing a new oxygen sensor. Use with anti-
seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for Zirco-
nia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for Tita-
nia Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL specifica-
tion MIL-A-907)
Lubricates oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
Tool name
(Kent-Moore No.)
Description
S-NT815
S-NT705
AEM488
S-NT779
Revision: 2008 October
2009 Murano
FUEL PRESSURE
EC-545
< ON-VEHICLE MAINTENANCE >
[VQ35DE]
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ON-VEHICLE MAINTENANCE
FUEL PRESSURE
Inspection
INFOID:0000000003388301
FUEL PRESSURE RELEASE
With CONSULT-III
1.
Turn ignition switch ON.
2.
Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III.
3.
Start engine.
4.
After engine stalls, crank it 2 or 3 times to release all fuel pressure.
5.
Turn ignition switch OFF.
Without CONSULT-III
1.
Remove fuel pump fuse (2) located in IPDM E/R (1).
2.
Start engine.
3.
After engine stalls, crank it 2 or 3 times to release all fuel pres-
sure.
4.
Turn ignition switch OFF.
5.
Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:
• Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because Z51 models do not have fuel return system.
• Be careful not to scratch or get the fuel hose connection area dirty when servicing, so that the quick
connector o-ring maintains seal ability.
• Use Fuel Pressure Gauge Kit [SST (J-44321)] and Fuel Pressure Adapter [SST (J-44321-6)] to check
fuel pressure.
1.
Release fuel pressure to zero.
2.
Remove fuel hose using Quick Connector Release [SST (J-45488)].
• Do not twist or kink fuel hose because it is plastic hose.
• Do not remove fuel hose (1) from quick connector.
• Keep fuel hose connections clean.
3.
Install Fuel Pressure Adapter [SST (J-44321-6)] (B) and Fuel
Pressure Gauge kit [SST (J44321)] (A) as shown in figure.
• Do not distort or bend fuel rail tube when installing fuel pres-
sure gauge adapter.
• When reconnecting fuel hose, check the original fuel hose for
damage and abnormality.
4.
Turn ignition switch ON (reactivate fuel pump) and check for fuel
leakage.
5.
Start engine and check for fuel leakage.
6.
Read the indication of fuel pressure gauge kit [SST (J-44321)].
• During fuel pressure check, check for fuel leakage from fuel
connection every 3 minutes.
JMBIA1659ZZ
At idling
: Approximately 350 kPa (3.57 kg/cm
2
, 51 psi)
JMBIA1127ZZ
Revision: 2008 October
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EC-546
< ON-VEHICLE MAINTENANCE >
[VQ35DE]
FUEL PRESSURE
7.
If result is unsatisfactory, go to next step.
8.
Check the following.
• Fuel hoses and fuel tubes for clogging
• Fuel filter for clogging
• Fuel pump
• Fuel pressure regulator for clogging
9.
If OK, replace fuel pressure regulator.
If NG, repair or replace malfunctioning part.
10. Before disconnecting Fuel Pressure Gauge kit [SST (J-44321)] and Fuel Pressure Adapter [SST (J-
44321-6)], release fuel pressure to zero.
Revision: 2008 October
2009 Murano
EVAP LEAK CHECK
EC-547
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EVAP LEAK CHECK
Inspection
INFOID:0000000003388302
CAUTION:
• Never use compressed air or a high pressure pump.
• Never exceed 4.12 kPa (0.042 kg/cm
2
, 0.6 psi) of pressure in EVAP system.
NOTE:
• Do not start engine.
• Improper installation of EVAP service port adapter (commercial service tool) to the EVAP service port may
cause a leakage.
WITH CONSULT-III
1.
To locate the EVAP leakage, install EVAP service port adapter
(commercial service tool) and pressure pump to EVAP service
port.
2.
Turn ignition switch ON.
3.
Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT
MODE” with CONSULT-III.
4.
Touch “START”. A bar graph (Pressure indicating display) will
appear on the screen.
5.
Apply positive pressure to the EVAP system until the pressure
indicator reaches the middle of the bar graph.
6.
Remove EVAP service port adapter (commercial service tool)
and hose with pressure pump.
7.
Locate the leakage using a leakage detector (commercial ser-
vice tool). Refer to
.
WITHOUT CONSULT-III
1.
To locate the EVAP leakage, install EVAP service port adapter
(commercial service tool) and pressure pump to EVAP service
port.
2.
Apply battery voltage between the terminals of EVAP canister
vent control valve to make a closed EVAP system.
3.
To locate the leakage, deliver positive pressure to the EVAP sys-
tem until pressure gauge points reach 1.38 to 2.76 kPa (0.014 to
0.028 kg/cm
2
, 0.2 to 0.4 psi).
4.
Remove EVAP service port adapter (commercial service tool)
and hose with pressure pump.
SEF462UA
SEF200U
SEF462UA
Revision: 2008 October
2009 Murano
EC-548
< ON-VEHICLE MAINTENANCE >
[VQ35DE]
EVAP LEAK CHECK
5.
Locate the leakage using a leak detector (commercial service
tool). Refer to
SEF200U
Revision: 2008 October
2009 Murano
EVAP CANISTER
EC-549
< ON-VEHICLE REPAIR >
[VQ35DE]
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ON-VEHICLE REPAIR
EVAP CANISTER
Exploded View
INFOID:0000000003388303
Removal and Installation
INFOID:0000000003388304
REMOVAL
1.
Lift up the vehicle.
2.
Remove EVAP canister fixing bolt.
3.
Remove EVAP canister.
NOTE:
The EVAP canister vent control valve and EVAP canister system pressure sensor can be removed without
removing the EVAP canister.
INSTALLATION
Install in the reverse order of removal.
NOTE:
Tighten EVAP canister fixing bolt to the specified torque.
DISASSEMBLY
1.
Turn EVAP canister vent control valve counterclockwise.
2.
Remove the EVAP canister vent control valve.
ASSEMBLY
Assemble in the reverse order of disassembly.
CAUTION:
Always replace O-ring with a new one.
PBIB1383E
PBIB1384E
Revision: 2008 October
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EC-550
< ON-VEHICLE REPAIR >
[VQ35DE]
EVAP CANISTER
Inspection
INFOID:0000000003388305
Check EVAP canister as per the following:
1.
Block port (B).
2.
Blow air into port (A) and check that it flows freely out of port (C).
3.
Release blocked port (B).
4.
Apply vacuum pressure to port (B) and check that vacuum pres-
sure exists at the ports (A) and (C).
5.
Block port (A) and (B).
6.
Apply pressure to port (C) and check that there is no leakage.
JMBIA1133ZZ
Revision: 2008 October
2009 Murano
SERVICE DATA AND SPECIFICATIONS (SDS)
EC-551
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Idle Speed
INFOID:0000000003388306
*: Under the following conditions
• A/C switch: OFF
• Electric load: OFF (Lights, heater fan & rear window defogger)
• Steering wheel: Kept in straight-ahead position
Ignition Timing
INFOID:0000000003388307
*: Under the following conditions
• A/C switch: OFF
• Electric load: OFF (Lights, heater fan & rear window defogger)
• Steering wheel: Kept in straight-ahead position
Calculated Load Value
INFOID:0000000003388308
Mass Air Flow Sensor
INFOID:0000000003388309
*: Engine is warmed up to normal operating temperature and running under no load.
Condition
Specification
No load* (in P or N position)
600
±
50 rpm
Condition
Specification
No load* (in P or N position)
12
±
5
°
BTDC
Condition
Specification (Using CONSULT-III or GST)
At idle
10 – 35 %
At 2,500 rpm
10 – 35 %
Supply voltage
Battery voltage (11 – 14 V)
Output voltage at idle (in N position)
0.9 – 1.2 V*
Mass air flow (Using CONSULT-III or GST)
2.0 – 6.0 g·m/sec at idle*
7.0 – 20.0 g·m/sec at 2,500 rpm*
Revision: 2008 October
2009 Murano
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