Nissan Murano Z51 (2008 year). Manual

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

EM-34

EX-

Three way catalyst

Lubrica-
tion

Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler

Oil level (Low)/Filthy oil

LU-7

Cooling

Radiator/Hose/Radiator filler cap

Thermostat

Water pump

Water gallery

Cooling fan

Coolant level (Low)/Contaminat-
ed coolant

CO-8

NVIS (NISSAN Vehicle Immobilizer System —
NATS)

SEC-18

SEC-244

SYMPTOM

Reference
page

HARD/NO S

T/RES

T (E

XCP

. HA)

GINE

ALL

HES

TION/SURGING/FLA

SPOT

ARK KNOC

/DET

LACK OF

POWER/POOR ACCELERA

TION

HIG

IDL

ROUGH IDLE/HUNTING

LING VI

BRA

ION

OW/NO RETU

O ID

OVERHEA

TER TEMPERA

URE HIG

XCESSIVE

FUEL CON

UMP

ION

XCESSIVE

OIL

NSUMP

ION

TTER

DEAD (UNDER CHARGE)

Warranty symptom code

Revision: 2008 October

2009 Murano

NORMAL OPERATING CONDITION

EC-537

< SYMPTOM DIAGNOSIS >

[VQ35DE]

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,

EC-28,

"System Description"

Revision: 2008 October

2009 Murano

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]

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

PG-96, "Description"

• 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

EC-470, "Reference Value"

• 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

2009 Murano

PRECAUTIONS

EC-541

< PRECAUTION >

[VQ35DE]

• 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

PREPARATION

EC-543

< PREPARATION >

[VQ35DE]

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

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]

ON-VEHICLE MAINTENANCE

FUEL PRESSURE

Inspection

INFOID:0000000003388301

FUEL PRESSURE RELEASE

With CONSULT-III

Turn ignition switch ON.

Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III.

Start engine.

After engine stalls, crank it 2 or 3 times to release all fuel pressure.

Turn ignition switch OFF.

Without CONSULT-III

Remove fuel pump fuse (2) located in IPDM E/R (1).

Start engine.

After engine stalls, crank it 2 or 3 times to release all fuel pres-
sure.

Turn ignition switch OFF.

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.

Release fuel pressure to zero.

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.

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.

Turn ignition switch ON (reactivate fuel pump) and check for fuel
leakage.

Start engine and check for fuel leakage.

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

, 51 psi)

JMBIA1127ZZ

Revision: 2008 October

2009 Murano

EVAP LEAK CHECK

EC-547

< ON-VEHICLE MAINTENANCE >

[VQ35DE]

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

, 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

To locate the EVAP leakage, install EVAP service port adapter
(commercial service tool) and pressure pump to EVAP service
port.

Turn ignition switch ON.

Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT
MODE” with CONSULT-III.

Touch “START”. A bar graph (Pressure indicating display) will
appear on the screen.

Apply positive pressure to the EVAP system until the pressure
indicator reaches the middle of the bar graph.

Remove EVAP service port adapter (commercial service tool)
and hose with pressure pump.

Locate the leakage using a leakage detector (commercial ser-
vice tool). Refer to

EC-77, "System Diagram"

WITHOUT CONSULT-III

To locate the EVAP leakage, install EVAP service port adapter
(commercial service tool) and pressure pump to EVAP service
port.

Apply battery voltage between the terminals of EVAP canister
vent control valve to make a closed EVAP system.

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

, 0.2 to 0.4 psi).

Remove EVAP service port adapter (commercial service tool)
and hose with pressure pump.

SEF462UA

SEF200U

SEF462UA

Revision: 2008 October

2009 Murano

EVAP CANISTER

EC-549

< ON-VEHICLE REPAIR >

[VQ35DE]

ON-VEHICLE REPAIR

EVAP CANISTER

Exploded View

INFOID:0000000003388303

Removal and Installation

INFOID:0000000003388304

REMOVAL

Lift up the vehicle.

Remove EVAP canister fixing bolt.

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

Turn EVAP canister vent control valve counterclockwise.

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

2009 Murano

SERVICE DATA AND SPECIFICATIONS (SDS)

EC-551

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VQ35DE]

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)

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

Nissan Murano Z51 (2008 year). Manual - part 170