Nissan Murano Z51 (2008 year). Manual — part 156
EC-312
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
17.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
1.
Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2.
Check if water will drain from the EVAP canister.
Does water drain from the EVAP canister?
YES
>> GO TO 18.
NO
>> GO TO 20.
18.
CHECK EVAP CANISTER
Weigh the EVAP canister with the 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 20.
NO
>> GO TO 19.
19.
DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and vehicle frame for clogging or poor connection
>> Repair hose or replace EVAP canister.
20.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000003625711
1.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
1.
Turn ignition switch OFF.
2.
Remove EVAP control system pressure sensor with its harness connector.
Always replace O-ring with a new one.
3.
Install a vacuum pump to EVAP control system pressure sensor.
4.
Turn ignition switch ON and check output voltage between ECM terminals under the following conditions.
CAUTION:
• Always calibrate the vacuum pump gauge when using it.
• Never apply below -93.3 kPa (-0.952 kg/cm
2
, -13.53 psi) or pressure over 101.3 kPa (1.033 kg/cm
2
,
14.69 psi).
Is the inspection result normal?
JMBIA1134GB
ECM
Applied vacuum kPa
(kg/cm
2
, psi)
Voltage
Connector
+
–
Terminal
Terminal
E16
86
(EVAP control system
pressure sensor signal)
96
(Sensor ground)
Not applied
1.8 - 4.8 V
-26.7 (-0.272, -3.87)
2.1 to 2.5 V lower than
above value
Revision: 2008 October
2009 Murano
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-313
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
YES
>> INSPECTION END
NO
>> Replace EVAP control system pressure sensor
Revision: 2008 October
2009 Murano
EC-314
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0455 EVAP CONTROL SYSTEM
P0455 EVAP CONTROL SYSTEM
DTC Logic
INFOID:0000000003388083
DTC DETECTION LOGIC
This diagnosis detects a very large leakage (fuel filler cap fell off etc.) in EVAP system between the fuel tank
and EVAP canister purge volume control solenoid valve.
CAUTION:
• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the
MIL may illuminate.
• If the fuel filler cap is not tightened properly, the MIL may illuminate.
• Use only a genuine NISSAN rubber tube as a replacement.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
CAUTION:
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0455
EVAP control system
gross leakage detected
EVAP control system has a very large leakage
such as fuel filler cap fell off, EVAP control sys-
tem does not operate properly.
• Fuel filler cap remains open or does not
close.
• Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• Foreign matter caught in fuel filler cap.
• Leakage is in line between intake mani-
fold and EVAP canister purge volume
control solenoid valve.
• Foreign matter caught in EVAP canister
vent control valve.
• EVAP canister or fuel tank leakage
• EVAP purge line (pipe and rubber tube)
leakage
• EVAP purge line rubber tube bent.
• Loose or disconnected rubber tube
• EVAP canister vent control valve and the
circuit
• EVAP canister purge volume control so-
lenoid valve and the circuit
• Fuel tank temperature sensor
• O-ring of EVAP canister vent control
valve is missing or damaged.
• EVAP control system pressure sensor
• Refueling EVAP vapor cut valve
• ORVR system leakage
PBIB1026E
Revision: 2008 October
2009 Murano
P0455 EVAP CONTROL SYSTEM
EC-315
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Never remove fuel filler cap during the DTC Confirmation Procedure.
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
Check that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly.
TESTING CONDITION:
• Perform “DTC WORK SUPPORT” when the fuel level is between 1/4 and 3/4 full, and vehicle is placed
on flat level surface.
• Open engine hood before conducting the following procedures.
Will CONSULT-III be used?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1.
Tighten fuel filler cap securely until ratcheting sound is heard.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
4.
Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
5.
Check that the following conditions are met.
COOLAN TEMP/S: 0 - 70
°
C (32 - 158
°
F)
INT/A TEMP SE: 0 - 60
°
C (32 - 140
°
F)
6.
Select “EVP SML LEAK P0442/P1442” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode
with CONSULT-III.
Follow the instructions displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT-III screen, go to
EC-12, "BASIC INSPECTION : Special Repair Requirement"
.
Which is displayed on CONSULT-III screen?
OK
>> INSPECTION END
NG
>> GO TO 3.
3.
CHECK DTC
Check DTC.
Which DTC is detected?
P0455 >> Go to
P0442 >> Go to
4.
PERFORM DTC CONFIRMATION PROCEDURE
With GST
NOTE:
Be sure to read the explanation of DRIVING PATTERN in
vehicle.
1.
Start engine.
2.
Drive vehicle according to DRIVING PATTERN.
3.
Stop vehicle.
4.
Turn ignition switch OFF and wait at least 10 seconds.
5.
Turn ignition switch ON.
6.
Turn ignition switch OFF and wait at least 10 seconds.
7.
Turn ignition switch ON.
8.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES-1 >> P0455: Go to
YES-2 >> P0442: Go to
YES-3 >> P0441: Go to
NO
>> INSPECTION END
Revision: 2008 October
2009 Murano
EC-316
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0455 EVAP CONTROL SYSTEM
Diagnosis Procedure
INFOID:0000000003388084
1.
CHECK FUEL FILLER CAP DESIGN
1.
Turn ignition switch OFF.
2.
Check for genuine NISSAN fuel filler cap design.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace with genuine NISSAN fuel filler cap.
2.
CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap clockwise.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Retighten until
ratcheting sound is heard.
3.
CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK FUEL TANK VACUUM RELIEF VALVE
EC-318, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace fuel filler cap with a genuine one.
5.
CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connection or
disconnection.
Refer to
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or reconnect the hose.
6.
CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 7.
7.
CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following.
• EVAP canister vent control valve is installed properly.
EC-549, "Removal and Installation"
.
• EVAP canister vent control valve.
EC-294, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace EVAP canister vent control valve and O-ring.
SEF915U
Revision: 2008 October
2009 Murano
P0455 EVAP CONTROL SYSTEM
EC-317
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
8.
CHECK FOR EVAP LEAKAGE
.
Is there any leakage in EVAP line?
YES
>> Repair or replace.
NO-1
>> With CONSULT-III: GO TO 9.
NO-2
>> Without CONSULT-III: GO TO 10.
9.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1.
Disconnect vacuum hose from EVAP canister purge volume control solenoid valve at EVAP service port.
2.
Start engine.
3.
Perform “PURG VOL C/V” in “ACTIVE TEST” mode.
4.
Touch “Qu” on CONSULT-III screen to increase “PURG VOL C/V” opening to 100%.
5.
Check vacuum hose for vacuum.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 11.
10.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-III
1.
Start engine and warm it up to normal operating temperature.
2.
Stop engine.
3.
Disconnect vacuum hose from EVAP canister purge volume control solenoid valve at EVAP service port.
4.
Start engine and let it idle for at least 80 seconds.
5.
Check vacuum hose for vacuum when revving engine up to 2,000 rpm.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> GO TO 11.
11.
CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to
Is the inspection result normal?
YES-1 >> With CONSULT-III: GO TO 12.
YES-2 >> Without CONSULT-III: GO TO 13.
NO
>> Repair or reconnect the hose.
12.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-III
1.
Start engine.
2.
Perform “PURG VOL C/V” in “ACTIVE TEST” mode with CONSULT-III. Check that engine speed varies
according to the valve opening.
Does engine speed vary according to the valve opening?
YES
>> GO TO 14.
NO
>> GO TO 13.
13.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-287, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> Replace EVAP canister purge volume control solenoid valve.
14.
CHECK FUEL TANK TEMPERATURE SENSOR
Vacuum should exist.
Vacuum should exist.
Revision: 2008 October
2009 Murano
EC-318
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0455 EVAP CONTROL SYSTEM
EC-238, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> Replace fuel level sensor unit.
15.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-302, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 16.
NO
>> Replace EVAP control system pressure sensor.
16.
CHECK EVAP/ORVR LINE
Check EVAP/ORVR line between EVAP canister and fuel tank for clogging, kinks, looseness and improper
connection. For location, refer to
.
Is the inspection result normal?
YES
>> GO TO 17.
NO
>> Repair or replace hoses and tubes.
17.
CHECK RECIRCULATION LINE
Check recirculation line between filler neck tube and fuel tank for clogging, kinks, cracks, looseness and
improper connection.
Is the inspection result normal?
YES
>> GO TO 18.
NO
>> Repair or replace hose, tube or filler neck tube.
18.
CHECK REFUELING EVAP VAPOR CUT VALVE
EC-460, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 19.
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
19.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000003591639
1.
CHECK FUEL FILLER CAP
1.
Turn ignition switch OFF.
2.
Remove fuel filler cap.
3.
Wipe clean valve housing.
4.
Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
SEF445Y
Revision: 2008 October
2009 Murano
P0455 EVAP CONTROL SYSTEM
EC-319
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
5.
Check valve opening pressure and vacuum.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE FUEL FILLER CAP
Replace fuel filler cap.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may
illuminate.
>> INSPECTION END
Pressure:
15.3 - 20.0 kPa (0.156 - 0.204 kg/cm
2
, 2.22 -
2.90 psi)
Vacuum:
−
6.0 to
−
3.3 kPa (
−
0.061 to
−
0.034 kg/cm
2
,
−
0.87 to
−
0.48 psi)
SEF943S
Revision: 2008 October
2009 Murano
EC-320
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0456 EVAP CONTROL SYSTEM
P0456 EVAP CONTROL SYSTEM
DTC Logic
INFOID:0000000003388086
DTC DETECTION LOGIC
NOTE:
If DTC P0456 is displayed with DTC P0442, first perform the trouble diagnosis for DTC P0456.
This diagnosis detects very small leakage in the EVAP line between fuel tank and EVAP canister purge vol-
ume control solenoid valve, using the negative pressure.
If ECM judges a leakage which corresponds to a very small leakage, the very small leakage P0456 will be
detected.
If ECM judges a leakage equivalent to a small leakage, EVAP small leakage P0442 will be detected.
If ECM judges that there are no leakage, the diagnosis will be OK.
CAUTION:
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0456
Evaporative emission
control system very
small leakage (negative
pressure check)
• EVAP system has a very small leak-
age.
• EVAP system does not operate prop-
erly.
• Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• Fuel filler cap remains open or does not close.
• Foreign matter caught in fuel filler cap.
• Leakage is in line between intake manifold and
EVAP canister purge volume control solenoid
valve.
• Foreign matter caught in EVAP canister vent con-
trol valve.
• EVAP canister or fuel tank leakage
• EVAP purge line (pipe and rubber tube) leakage
• EVAP purge line rubber tube bent
• Loose or disconnected rubber tube
• EVAP canister vent control valve and the circuit
• EVAP canister purge volume control solenoid
valve and the circuit
• Fuel tank temperature sensor
• O-ring of EVAP canister vent control valve is miss-
ing or damaged
• EVAP canister is saturated with water
• EVAP control system pressure sensor
• Refueling EVAP vapor cut valve
• ORVR system leakage
• Fuel level sensor and the circuit
• Foreign matter caught in EVAP canister purge vol-
ume control solenoid valve
PBIB1026E
Revision: 2008 October
2009 Murano
P0456 EVAP CONTROL SYSTEM
EC-321
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the
MIL may illuminate.
• If the fuel filler cap is not tightened properly, the MIL may illuminate.
• Use only a genuine NISSAN rubber tube as a replacement.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
Will CONSULT-III be used?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
NOTE:
• After repair, make sure that the hoses and clips are installed properly.
• Check that EVAP hoses are connected to EVAP canister purge volume control solenoid valve prop-
erly.
TESTING CONDITION:
• Open engine hood before conducting the following procedure.
• If any of following conditions are met just before the DTC CONFIRMATION PROCEDURE, leave the
vehicle for more than 1 hour.
- Fuel filler cap is removed.
- Fuel is refilled or drained.
- EVAP component part/parts is/are removed.
• Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1.
Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2.
Check that the following conditions are met.
FUEL LEVEL SE: 0.25 - 1.4 V
COOLAN TEMP/S: 0 - 32
°
C (32 - 90
°
F)
FUEL T/TMP SE: 0 - 35
°
C (32 - 95
°
F)
INT A/TEMP SE: More than 0
°
C (32
°
F)
If NG, turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle), or refill/drain fuel
until the output voltage of the “FUEL LEVEL SE” meets within the range above and leave the vehicle for
more than 1 hour. Then start from step 1.
3.
Turn ignition switch OFF and wait at least 10 seconds.
4.
Turn ignition switch ON.
5.
Select “EVP V/S LEAK P0456/P1456” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode
with CONSULT-III.
Follow the instructions displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on CONSULT-III screen, go to
EC-12, "BASIC INSPECTION : Special Repair Requirement"
.
Which is displayed on CONSULT-III?
OK
>> INSPECTION END
NG
>> Go to
4.
PERFORM COMPONENT FUNCTION CHECK
Perform Component Function Check. Refer to
EC-322, "Component Function Check"
Revision: 2008 October
2009 Murano
EC-322
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0456 EVAP CONTROL SYSTEM
NOTE:
Use Component Function Check to check the overall function of the EVAP very small leakage function. During
this check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Component Function Check
INFOID:0000000003733525
1.
PERFORM COMPONENT FUNCTION CHECK
With GST
CAUTION:
• Never use compressed air, doing so may damage the EVAP system.
• Never start engine.
• Never exceed 4.12 kPa (0.042 kg/cm
2
, 0.6 psi).
1.
Attach the EVAP service port adapter (commercial service tool) securely to the EVAP service port.
2.
Set the pressure pump and a hose.
3.
Also set a vacuum gauge via 3-way connector and a hose.
4.
Turn ignition switch ON.
5.
Connect GST and select Service $08.
6.
Using Service $08 control the EVAP canister vent control valve
(close).
7.
Apply pressure and make sure the following conditions are sat-
isfied.
Pressure to be applied: 2.7 kPa (0.028 kg/cm
2
, 0.39 psi)
Time to be waited after the pressure drawn in to the EVAP
system and the pressure to be dropped: 60 seconds and
the pressure should not be dropped more than 0.4 kPa
(0.004 kg/cm
2
, 0.06 psi).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Go to
2.
RELEASE PRESSURE
1.
Disconnect GST.
2.
Start engine and warm it up to normal operating temperature.
3.
Turn ignition switch OFF and wait at least 10 seconds.
4.
Restart engine and let it idle for 90 seconds.
5.
Keep engine speed at 2,000 rpm for 30 seconds.
6.
Turn ignition switch OFF.
NOTE:
For more information, refer to GST Instruction Manual.
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003388088
1.
CHECK FUEL FILLER CAP DESIGN
1.
Turn ignition switch OFF.
SEF462UI
Revision: 2008 October
2009 Murano
P0456 EVAP CONTROL SYSTEM
EC-323
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
2.
Check for genuine NISSAN fuel filler cap design.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace with genuine NISSAN fuel filler cap.
2.
CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap clockwise.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Retighten until
ratcheting sound is heard.
3.
CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK FUEL TANK VACUUM RELIEF VALVE
EC-326, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace fuel filler cap with a genuine one.
5.
CHECK FOR EVAP LEAKAGE
.
Is there any leakage in EVAP line?
YES
>> Repair or replace malfunctioning part.
NO
>> GO TO 6.
6.
CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following.
• EVAP canister vent control valve is installed properly.
EC-549, "Removal and Installation"
• EVAP canister vent control valve.
EC-294, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace EVAP canister vent control valve and O-ring.
7.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
SEF915U
Revision: 2008 October
2009 Murano
EC-324
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0456 EVAP CONTROL SYSTEM
Remove EVAP canister with EVAP canister vent control valve and
EVAP control system pressure sensor attached.
Does water drain from the EVAP canister?
YES
>> GO TO 8.
NO-1
>> With CONSULT-III: GO TO 10.
NO-2
>> Without CONSULT-III: GO TO 11.
8.
CHECK EVAP CANISTER
Weigh the EVAP canister with the 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-1 >> With CONSULT-III: GO TO 10.
YES-2 >> Without CONSULT-III: GO TO 11.
NO
>> GO TO 9.
9.
DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and vehicle frame for clogging or poor connection
>> Repair hose or replace EVAP canister.
10.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1.
Disconnect vacuum hose connected to EVAP service port and EVAP canister purge volume control sole-
noid valve from EVAP service port.
2.
Start engine.
3.
Perform “PURG VOL C/V” in “ACTIVE TEST” mode.
4.
Touch “Qu” on CONSULT-III screen to increase “PURG VOL C/V” opening to 100%.
5.
Check vacuum hose for vacuum.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> GO TO 12.
11.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
Without CONSULT-III
1.
Start engine and warm it up to normal operating temperature.
2.
Stop engine.
3.
Disconnect vacuum hose connected to EVAP service port and EVAP canister purge volume control sole-
noid valve from EVAP service port.
4.
Start engine and let it idle for at least 80 seconds.
5.
Check vacuum hose for vacuum when revving engine up to 2,000 rpm.
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> GO TO 12.
12.
CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to
JMBIA1134GB
Vacuum should exist.
Vacuum should exist.
Revision: 2008 October
2009 Murano
P0456 EVAP CONTROL SYSTEM
EC-325
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> Repair or reconnect the hose.
13.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-287, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> Replace EVAP canister purge volume control solenoid valve.
14.
CHECK FUEL TANK TEMPERATURE SENSOR
EC-238, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> Replace fuel level sensor unit.
15.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-302, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 16.
NO
>> Replace EVAP control system pressure sensor.
16.
CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks or improper connection.
Refer to
Is the inspection result normal?
YES
>> GO TO 17.
NO
>> Repair or reconnect the hose.
17.
CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 18.
18.
CHECK EVAP/ORVR LINE
Check EVAP/ORVR line between EVAP canister and fuel tank for clogging, kinks, looseness and improper
connection. For location, refer to
.
Is the inspection result normal?
YES
>> GO TO 19.
NO
>> Repair or replace hoses and tubes.
19.
CHECK RECIRCULATION LINE
Check recirculation line between filler neck tube and fuel tank for clogging, kinks, cracks, looseness and
improper connection.
Is the inspection result normal?
YES
>> GO TO 20.
NO
>> Repair or replace hose, tube or filler neck tube.
20.
CHECK REFUELING EVAP VAPOR CUT VALVE
EC-460, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 21.
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
21.
CHECK FUEL LEVEL SENSOR
MWI-47, "Component Inspection"
.
Is the inspection result normal?
Revision: 2008 October
2009 Murano
EC-326
< COMPONENT DIAGNOSIS >
[VQ35DE]
P0456 EVAP CONTROL SYSTEM
YES
>> GO TO 22.
NO
>> Replace fuel level sensor unit.
22.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000003591640
1.
CHECK FUEL FILLER CAP
1.
Turn ignition switch OFF.
2.
Remove fuel filler cap.
3.
Wipe clean valve housing.
4.
Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
5.
Check valve opening pressure and vacuum.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE FUEL FILLER CAP
Replace fuel filler cap.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may
illuminate.
>> INSPECTION END
SEF445Y
Pressure:
15.3 - 20.0 kPa (0.156 - 0.204 kg/cm
2
, 2.22 -
2.90 psi)
Vacuum:
−
6.0 to
−
3.3 kPa (
−
0.061 to
−
0.034 kg/cm
2
,
−
0.87 to
−
0.48 psi)
SEF943S
Revision: 2008 October
2009 Murano
P0460 FUEL LEVEL SENSOR
EC-327
< COMPONENT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P0460 FUEL LEVEL SENSOR
Description
INFOID:0000000003388090
The fuel level sensor is mounted in the fuel level sensor unit.
The sensor detects a fuel level in the fuel tank and transmits a signal to the combination meter. The combina-
tion meter sends the fuel level sensor signal to the ECM via the CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output volt-
age changes depending on the movement of the fuel mechanical float.
DTC Logic
INFOID:0000000003388091
DTC DETECTION LOGIC
NOTE:
• If DTC P0460 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
• If DTC P0460 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer
.
When the vehicle is parked, the fuel level in the fuel tank is naturally stable. It means that output signal of the
fuel level sensor does not change. If ECM senses sloshing signal from the sensor, fuel level sensor malfunc-
tion is detected.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start engine and wait maximum of 2 consecutive minutes.
2.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003388092
1.
CHECK COMBINATION METER FUNCTION
MWI-34, "CONSULT-III Function (METER/M&A)"
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Go to
.
2.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0460
Fuel level sensor circuit
noise
Even though the vehicle is parked, a signal be-
ing varied is sent from the fuel level sensor to
ECM.
• Harness or connectors
(The CAN communication line is open or
shorted)
• Harness or connectors
(The sensor circuit is open or shorted)
• Combination meter
• Fuel level sensor
Revision: 2008 October
2009 Murano
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст