Nissan Murano Z51 (2008 year). Manual — part 165
EC-456
< COMPONENT DIAGNOSIS >
[VQ35DE]
MALFUNCTION INDICATOR LAMP
MALFUNCTION INDICATOR LAMP
Description
INFOID:0000000003388270
The Malfunction Indicator Lamp (MIL) is located on the combination
meter.
The MIL will illuminate when the ignition switch is turned ON without
the engine running. This is a bulb check.
When the engine is started, the MIL should turn off. If the MIL
remains on, the on board diagnostic system has detected an engine
system malfunction.
For details, refer to
EC-102, "Diagnosis Description"
.
Component Function Check
INFOID:0000000003388271
1.
CHECK MIL FUNCTION
1.
Turn ignition switch ON.
2.
Check that MIL illuminates.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Diagnosis Procedure
INFOID:0000000003388272
1.
CHECK DTC
Check that DTC UXXXX is not displayed.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Perform trouble diagnosis for DTC UXXXX.
2.
CHECK COMBINATION METER FUNCTION
MWI-34, "CONSULT-III Function (METER/M&A)"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace.
3.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Repair or replace.
SEF217U
Revision: 2008 October
2009 Murano
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-457
< COMPONENT DIAGNOSIS >
[VQ35DE]
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ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Description
INFOID:0000000003388273
From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WARNING:
When conducting inspections below, be sure to observe the following:
• Put a “CAUTION: FLAMMABLE” sign in workshop.
• Never smoke while servicing fuel system. Keep open flames and sparks away from work area.
• Always to furnish the workshop with a CO
2
fire extinguisher.
CAUTION:
• Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosion-proof container and put lid on securely.
- Release fuel pressure from fuel line. Refer to
- Disconnect battery ground cable.
• Always replace O-ring when the fuel gauge retainer is removed.
• Never kink or twist hose and tube when they are installed.
• Never tighten hose and clamps excessively to avoid damaging hoses.
• After installation, run engine and check for fuel leakage at connections.
• Never attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel spray and possibly a fire.
Component Function Check
INFOID:0000000003388274
1.
CHECK ORVR FUNCTION
Check whether the following symptoms are present.
• Fuel odor from EVAP canister is strong.
• Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.
Are any symptoms present?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003388275
1.
INSPECTION START
Check whether the following symptoms are present.
A: Fuel odor from EVAP canister is strong.
PBIB1068E
Revision: 2008 October
2009 Murano
EC-458
< COMPONENT DIAGNOSIS >
[VQ35DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
B: Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.
A or B
A
>> GO TO 2.
B
>> GO TO 7.
2.
CHECK EVAP CANISTER
1.
Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2.
Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.1 kg (4.6 lb).
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Check if water will drain from EVAP canister
Does water drain from the EVAP canister?
YES
>> GO TO 4.
NO
>> GO TO 6.
4.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose.
6.
CHECK REFUELING EVAP VAPOR CUT VALVE
EC-460, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
7.
CHECK EVAP CANISTER
1.
Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2.
Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.1 kg (4.6 lb).
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 9.
8.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
JMBIA1134GB
Revision: 2008 October
2009 Murano
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-459
< COMPONENT DIAGNOSIS >
[VQ35DE]
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Check if water will drain from EVAP canister.
Does water drain from the EVAP canister?
YES
>> GO TO 6.
NO
>> GO TO 11.
9.
REPLACE EVAP CANISTER
Replace EVAP canister with a new one.
>> GO TO 10.
10.
DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose.
11.
CHECK VENT HOSES AND VENT TUBES
Check hoses and tubes between EVAP canister and refueling control valve for clogging, kinks, looseness and
improper connection.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> Repair or replace hoses and tubes.
12.
CHECK FILLER NECK TUBE
Check recirculation line for clogging, dents and cracks.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> Replace filler neck tube.
13.
CHECK REFUELING EVAP VAPOR CUT VALVE
EC-460, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
14.
CHECK FUEL FILLER TUBE
Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> Replace fuel filler tube.
15.
CHECK ONE-WAY FUEL VALVE-I
Check one-way valve for clogging.
Is the inspection result normal?
YES
>> GO TO 16.
NO
>> Repair or replace one-way fuel valve with fuel tank.
16.
CHECK ONE-WAY FUEL VALVE-II
1.
Check that fuel is drained from the tank.
2.
Remove fuel filler tube and hose.
JMBIA1134GB
Revision: 2008 October
2009 Murano
EC-460
< COMPONENT DIAGNOSIS >
[VQ35DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
3.
Check one-way fuel valve for operation as per the following.
When a stick is inserted, the valve should open, when removing
stick it should close.
Do not drop any material into the tank.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace fuel filler tube or replace one-way fuel valve
with fuel tank.
Component Inspection
INFOID:0000000003388276
1.
INSPECTION START
Will CONSULT-III be used?
Will CONSULT-III be used?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK REFUELING EVAP VAPOR CUT VALVE
With CONSULT-III
1.
Turn ignition switch OFF.
2.
Remove fuel tank. Refer to
FL-12, "Removal and Installation"
.
3.
Drain fuel from the tank as per the following:
-
Remove fuel feed hose located on the fuel gauge retainer.
-
Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other
side to a fuel container.
-
Drain fuel using “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT-III.
4.
Check refueling EVAP vapor cut valve for being stuck to close as per the following.
Blow air into the refueling EVAP vapor cut valve (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
5.
Check refueling EVAP vapor cut valve for being stuck to open as per the following.
-
Connect vacuum pump to hose end.
-
Remove fuel gauge retainer with fuel gauge unit.
Always replace O-ring with new one.
-
Turn fuel tank upside down.
-
Apply vacuum pressure to hose end [
−
13.3 kPa (
−
0.136 kg/cm
3
,
−
1.93 psi)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
SEF665U
JMBIA1126GB
Revision: 2008 October
2009 Murano
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-461
< COMPONENT DIAGNOSIS >
[VQ35DE]
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3.
CHECK REFUELING EVAP VAPOR CUT VALVE
Without CONSULT-III
1.
Turn ignition switch OFF.
2.
Remove fuel tank. Refer to
FL-12, "Removal and Installation"
.
3.
Drain fuel from the tank as per the following:
-
Remove fuel gauge retainer.
-
Drain fuel from the tank using a handy pump into a fuel container.
4.
Check refueling EVAP vapor cut valve for being stuck to close as per the following.
Blow air into the refueling EVAP vapor cut valve (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
5.
Check refueling EVAP vapor cut valve for being stuck to open as per the following.
-
Connect vacuum pump to hose end.
-
Remove fuel gauge retainer with fuel gauge unit.
Always replace O-ring with new one.
-
Turn fuel tank upside down.
-
Apply vacuum pressure to hose end [
−
13.3 kPa (
−
0.136 kg/cm
3
,
−
1.93 psi)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
JMBIA1126GB
Revision: 2008 October
2009 Murano
EC-462
< COMPONENT DIAGNOSIS >
[VQ35DE]
POSITIVE CRANKCASE VENTILATION
POSITIVE CRANKCASE VENTILATION
Description
INFOID:0000000003388277
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV
valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.
The ventilating air is drawn from the air inlet tubes into the crankcase. In this process the air passes through
the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.
Component Inspection
INFOID:0000000003388278
1.
CHECK PCV VALVE
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace PCV valve.
SEC921C
PBIB1588E
PBIB1589E
Revision: 2008 October
2009 Murano
REFRIGERANT PRESSURE SENSOR
EC-463
< COMPONENT DIAGNOSIS >
[VQ35DE]
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REFRIGERANT PRESSURE SENSOR
Description
INFOID:0000000003388279
The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent
to ECM, and ECM controls cooling fan system.
Component Function Check
INFOID:0000000003388280
1.
CHECK REFRIGERANT PRESSURE SENSOR FUNCTION
1.
Start engine and warm it up to normal operating temperature.
2.
Turn A/C switch and blower fan switch ON.
3.
Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Diagnosis Procedure
INFOID:0000000003388281
1.
CHECK GROUND CONNECTION
1.
Turn A/C switch and blower fan switch OFF.
2.
Turn ignition switch OFF.
3.
Check ground connection E38. Refer to Ground Inspection in
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1.
Disconnect refrigerant pressure sensor harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between refrigerant pressure sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
PBIB2657E
ECM
Voltage (V)
Connector
+
–
Terminal
Terminal
F8
39
(Refrigerant pressure sensor signal)
40
(Sensor ground)
1.0 - 4.0
Refrigerant pressure sensor
Ground
Voltage (V)
Connector
Terminal
E300
1
Ground
Approx. 5
Revision: 2008 October
2009 Murano
EC-464
< COMPONENT DIAGNOSIS >
[VQ35DE]
REFRIGERANT PRESSURE SENSOR
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors F123, E6
• IPDM E/R harness connectors E10, E346
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
4.
CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors F123, E6
• IPDM E/R harness connectors E10, E346
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
6.
CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors F123, E6
• IPDM E/R harness connectors E10, E346
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
8.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace refrigerant pressure sensor.
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E300
3
F8
40
Existed
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E300
2
F8
39
Existed
Revision: 2008 October
2009 Murano
REFRIGERANT PRESSURE SENSOR
EC-465
< COMPONENT DIAGNOSIS >
[VQ35DE]
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NO
>> Repair or replace malfunctioning part.
Revision: 2008 October
2009 Murano
EC-466
< COMPONENT DIAGNOSIS >
[VQ35DE]
VARIABLE INDUCTION AIR SYSTEM
VARIABLE INDUCTION AIR SYSTEM
Description
INFOID:0000000003388282
Power Valves 1 and 2
The power valves 1 and 2 are installed in intake manifold collector and used to control the suction passage of
the variable induction air control system. They are set in the fully closed or fully opened position by the power
valve actuators 1 and 2 operated by the vacuum stored in the vacuum tank. The vacuum to power valve actu-
ators is controlled by the VIAS control solenoid valves 1 and 2.
Component Function Check
INFOID:0000000003388283
1.
CHECK OVERALL FUNCTION-I
With CONSULT-III
1.
Start engine and warm it up to the normal operating temperature.
2.
Perform “VIAS S/V-1” in “ACTIVE TEST” mode with CONSULT-III.
3.
Turn VIAS control solenoid valve 1 “ON” and “OFF”, and check that power valve actuator 1 rod moves.
Without CONSULT-III
1.
Start engine and warm it up to the normal operating temperature.
2.
Rev engine quickly up to approximately 5,000 rpm.
3.
Check that power valve actuator 1 rod moves.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>>
.
2.
CHECK OVERALL FUNCTION-II
With CONSULT-III
1.
Power valve actuator 1
2.
Power valve actuator 1 rod
3.
Power valve actuator 2
4.
Power valve actuator 2 rod
: Vehicle front
1.
Power valve actuator 1
2.
Power valve actuator 1 rod
3.
Power valve actuator 2
4.
Power valve actuator 2 rod
: Vehicle front
JMBIA1129ZZ
JMBIA1386ZZ
Revision: 2008 October
2009 Murano
VARIABLE INDUCTION AIR SYSTEM
EC-467
< COMPONENT DIAGNOSIS >
[VQ35DE]
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1.
Perform “VIAS S/V-2” in “ACTIVE TEST” mode with CONSULT-III.
2.
Turn VIAS control solenoid valve 2 “ON” and “OFF”, and check that power valve actuator 2 rod moves.
Without CONSULT-III
1.
When revving engine up to 5,000 rpm quickly.
2.
Rev engine quickly up to approximately 5,000 rpm.
3.
Check that power valve actuator 2 rod moves.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>>
.
Diagnosis Procedure
INFOID:0000000003388284
1.
INSPECTION START
Confirm the malfunctioning system (power valve 1 or power valve 2). Refer to
.
Which system is related to the incident?
Power valve 1>>GO TO 2.
Power valve 2>>GO TO 6.
2.
CHECK VACUUM EXISTENCE-I
With CONSULT-III
1.
Stop engine and disconnect vacuum hose connected to power valve actuator 1.
2.
Start engine and let it idle.
3.
Perform “VIAS S/V-1” in “ACTIVE TEST” mode with CONSULT-III.
4.
Turn VIAS control solenoid valve 1 ON and OFF, and check vacuum existence under the following condi-
tions.
1.
Power valve actuator 1
2.
Power valve actuator 1 rod
3.
Power valve actuator 2
4.
Power valve actuator 2 rod
: Vehicle front
1.
Power valve actuator 1
2.
Power valve actuator 1 rod
3.
Power valve actuator 2
4.
Power valve actuator 2 rod
: Vehicle front
JMBIA1129ZZ
JMBIA1386ZZ
Revision: 2008 October
2009 Murano
EC-468
< COMPONENT DIAGNOSIS >
[VQ35DE]
VARIABLE INDUCTION AIR SYSTEM
Without CONSULT-III
1.
Stop engine and disconnect vacuum hose connected to power valve actuator 1.
2.
Disconnect VIAS control solenoid valve 1 harness connector.
3.
Start engine.
4.
Rev engine quickly up to approximately 5,000 rpm.
5.
Check vacuum existence under the following conditions.
Is the inspection result normal?
YES
>> Repair or replace power valve actuator 1.
NO
>> GO TO 3.
3.
CHECK VACUUM TANK
1.
Stop engine and disconnect vacuum hose connected to intake manifold collector.
2.
Start engine and let it idle.
3.
Check vacuum existence from intake manifold collector.
Does vacuum existence from the intake manifold collector?
YES
>> GO TO 4.
NO
>> Replace intake manifold collector.
4.
CHECK VACUUM HOSE
1.
Stop engine.
2.
Check vacuum hose for crack, clogging, improper connection or
disconnection. Refer to
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair hoses or tubes.
5.
CHECK VIAS CONTROL SOLENOID VALVE 1
EC-394, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Replace VIAS control solenoid valve 1.
6.
CHECK VACUUM EXISTENCE-II
With CONSULT-III
1.
Stop engine and disconnect vacuum hose connected to power valve actuator 2.
2.
Start engine and let it idle.
3.
Perform “VIAS S/V-2” in “ACTIVE TEST” mode with CONSULT-III.
4.
Turn VIAS control solenoid valve 2 ON and OFF, and check vacuum existence under the following condi-
tions.
VIAS S/V-1
Vacuum
ON
Existed
OFF
Not existed
Condition
Vacuum
Idle
Existed
Rev engine quickly up to approximately 5,000 rpm
Not existed
SEF109L
Revision: 2008 October
2009 Murano
VARIABLE INDUCTION AIR SYSTEM
EC-469
< COMPONENT DIAGNOSIS >
[VQ35DE]
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Without CONSULT-III
1.
Stop engine and disconnect vacuum hose connected to power valve actuator 2.
2.
Disconnect VIAS control solenoid valve 1 harness connector.
3.
Start engine.
4.
Rev engine quickly up to approximately 5,000 rpm.
5.
Check vacuum existence under the following conditions.
Is the inspection result normal?
YES
>> Repair or replace power valve actuator 2.
NO
>> GO TO 7.
7.
CHECK VACUUM HOSE
1.
Stop engine.
2.
Check vacuum hose for crack, clogging, improper connection or
disconnection. Refer to
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair hoses or tubes.
8.
CHECK VIAS CONTROL SOLENOID VALVE 2
EC-397, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Replace VIAS control solenoid valve 2.
9.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
VIAS S/V 2
Vacuum
ON
Existed
OFF
Not existed
Condition
Operation
Idle
Existed
Rev engine quickly up to approximately 5,000 rpm
Not existed
SEF109L
Revision: 2008 October
2009 Murano
EC-470
< ECU DIAGNOSIS >
[VQ35DE]
ECM
ECU DIAGNOSIS
ECM
Reference Value
INFOID:0000000003388285
VALUES ON THE DIAGNOSIS TOOL
Remarks:
z
Specification data are reference values.
z
Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
I.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show
the specification data in spite of the ignition timing not being adjusted to the specification data. This IGN TIM-
ING monitors the data calculated by the ECM according to the signals input from the camshaft position sensor
and other ignition timing related sensors.
Monitor Item
Condition
Values/Status
ENG SPEED
Run engine and compare CONSULT-III value with the tachometer indication.
Almost the same speed as
the tachometer indication.
MAS A/F SE-B1
.
B/FUEL SCHDL
.
A/F ALPHA-B1
.
A/F ALPHA-B2
.
COOLAN TEMP/S
• Engine: After warming up
More than 70
°
C (158
°
F)
A/F SEN1 (B1)
• Engine: After warming up
Maintaining engine speed at 2,000 rpm
Fluctuates around 2.2 V
A/F SEN1 (B2)
• Engine: After warming up
Maintaining engine speed at 2,000 rpm
Fluctuates around 2.2 V
HO2S2 (B1)
• Revving engine from idle to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
0 - 0.3 V
←→
Approx. 0.6 -
1.0 V
HO2S2 (B2)
• Revving engine from idle to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
0 - 0.3 V
←→
Approx. 0.6 -
1.0 V
HO2S2 MNTR (B1)
• Revving engine from idle to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
LEAN
←→
RICH
HO2S2 MNTR (B2)
• Revving engine from idle to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
LEAN
←→
RICH
VHCL SPEED SE
• Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.
Almost the same speed as
speedometer indication
BATTERY VOLT
• Ignition switch: ON (Engine stopped)
11 - 14 V
ACCEL SEN 1
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.5 - 1.0 V
Accelerator pedal: Fully depressed
4.2 - 4.8 V
ACCEL SEN 2*
1
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.5 - 1.0 V
Accelerator pedal: Fully depressed
4.2 - 4.8 V
Revision: 2008 October
2009 Murano
ECM
EC-471
< ECU DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
TP SEN 1-B1
• Ignition switch: ON
(Engine stopped)
• Selector lever: D position
Accelerator pedal: Fully released
More than 0.36 V
Accelerator pedal: Fully depressed
Less than 4.75 V
TP SEN 2-B1*
1
• Ignition switch: ON
(Engine stopped)
• Selector lever: D position
Accelerator pedal: Fully released
More than 0.36 V
Accelerator pedal: Fully depressed
Less than 4.75 V
FUEL T/TMP SE
• Ignition switch: ON
Indicates fuel tank tempera-
ture
INT/A TEMP SE
• Ignition switch: ON
Indicates intake air tempera-
ture
EVAP SYS PRES
• Ignition switch: ON
Approx. 1.8 - 4.8 V
FUEL LEVEL SE
• Ignition switch: ON
Depending on fuel level of
fuel tank
START SIGNAL
• Ignition switch: ON
→
START
→
ON
OFF
→
ON
→
OFF
CLSD THL POS
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
ON
Accelerator pedal: Slightly depressed
OFF
AIR COND SIG
• Engine: After warming up, idle the
engine
Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates.)
ON
P/N POSI SW
• Ignition switch: ON
Selector lever: P or N position
ON
Selector lever: Except above position
OFF
PW/ST SIGNAL
• Engine: After warming up, idle the
engine
Steering wheel: Not being turned
OFF
Steering wheel: Being turned
ON
LOAD SIGNAL
• Ignition switch: ON
Rear window defogger switch: ON
and/or
Lighting switch: 2nd position
ON
Rear window defogger switch and lighting
switch: OFF
OFF
IGNITION SW
• Ignition switch: ON
→
OFF
→
ON
ON
→
OFF
→
ON
HEATER FAN SW
• Engine: After warming up, idle the
engine
Heater fan switch: ON
ON
Heater fan switch: OFF
OFF
BRAKE SW
• Ignition switch: ON
Brake pedal: Fully released
OFF
Brake pedal: Slightly depressed
ON
INJ PULSE-B1
• Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
• No load
Idle
2.0 - 3.0 msec
2,000 rpm
1.9 - 2.9 msec
INJ PULSE-B2
• Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
• No load
Idle
2.0 - 3.0 msec
2,000 rpm
1.9 - 2.9 msec
IGN TIMING
• Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
• No load
Idle
7 - 17
°
BTDC
2,000 rpm
25 - 45
°
BTDC
CAL/LD VALUE
• Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
• No load
Idle
5 - 35%
2,500 rpm
5 - 35%
MASS AIRFLOW
• Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
• No load
Idle
2.0 - 6.0 g·m/s
2,500 rpm
7.0 - 20.0 g·m/s
Monitor Item
Condition
Values/Status
Revision: 2008 October
2009 Murano
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