2014 NISSAN TEANA Service Manual

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Page 1369 of 4801

NISSAN TEANA 2014 Service Manual
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOREC-369
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
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G H
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K L
M A
EC
NP
O
2. Check if water will drain from the EVAP canister.
Does water drain from EVAP ca

Page 1370 of 4801

NISSAN TEANA 2014 Service Manual
EC-370
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0456 EVAP CONTROL SYSTEM
P0456 EVAP CONTROL SYSTEM
DTC LogicINFOID:0000000009462293
DTC DETECTION LOGIC
This diagnosis detects leaks in the EVAP line between

EC-370
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0456 EVAP CONTROL SYSTEM
P0456 EVAP CONTROL SYSTEM
DTC LogicINFOID:0000000009462293
DTC DETECTION LOGIC
This diagnosis detects leaks in the EVAP line between f
uel tank and EVAP canister purge volume control sole-
noid valve, using the negative pressure caused by decrease of fuel temperature in the fuel tank after turning
ignition switch OFF.
If ECM judges there are no leaks, the diagnosis will be OK.
CAUTION:
• Use only a genuine NISSAN fuel filler cap as a replacemen t. If an incorrect fuel filler cap is used, the
MIL may illuminate.
• If the fuel filler cap is not tighte ned properly, the MIL may illuminate.
• Use only a genuine NISSAN rubber tube as a replacement.
DTC CONFIRMATION PROCEDURE
JSBIA0416GB
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0456 EVAP VERY SML LEAK
[Evaporative emission system
leak detected (very small leak)] • EVAP system has a leak.
• EVAP system does not op- erate properly. • 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.
• Leak is in line between intake manifold and EVAP can- ister purge volume control solenoid valve.
• Foreign matter caught in EVAP canister vent control valve.
• EVAP canister or fuel tank leaks
• EVAP purge line (pipe and rubber tube) leaks
• 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 missing or damaged
• EVAP canister is saturated with water
• EVAP control system pressure sensor
• Refueling EVAP vapor cut valve
• ORVR system leaks
• Fuel level sensor and the circuit
• Foreign matter caught in EVAP canister purge volume
control solenoid valve
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1371 of 4801

NISSAN TEANA 2014 Service Manual
P0456 EVAP CONTROL SYSTEMEC-371
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
I
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K L
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EC
NP
O
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always perform the

Page 1372 of 4801

NISSAN TEANA 2014 Service Manual
EC-372
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0456 EVAP CONTROL SYSTEM
2. Check for genuine NISSAN fuel filler cap design.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace with genuine NI

Page 1373 of 4801

NISSAN TEANA 2014 Service Manual
P0456 EVAP CONTROL SYSTEMEC-373
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
2. Check if water will drain from the EVAP canister.
Does water drain from EVAP canister?
YES >> G

P0456 EVAP CONTROL SYSTEMEC-373
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
2. Check if water will drain from the EVAP canister.
Does water drain from EVAP canister?
YES >> GO TO 8.
NO-1 >> With CONSULT: GO TO 10.
NO-2 >> Without CONSULT: GO TO 11.
8.CHECK EVAP CANISTER
Weigh the EVAP canister assembly with the EVAP canist er vent control valve and EVAP control system pres-
sure sensor attached. Refer to FL-14, "Removal and Installation"
.
The weight should be less than 2.1 kg (4.6 lb).
Is the inspection result normal?
YES-1 >> With CONSULT: GO TO 10.
YES-2 >> Without CONSULT: GO TO 11.
NO >> GO TO 9.
9.DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and vehi cle frame for clogging or poor connection
>> Repair hose or replace EVAP canister. Refer to FL-14, "Removal and Installation"
.
10.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT
1. Disconnect vacuum hose to EVAP canister purge volu me control solenoid valve at EVAP service port.
2. Start engine and let it idle.
3. Select “PURG VOL CONT/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.
4. Touch “Qu” on CONSULT screen to in crease “PURG VOL CONT/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
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose to EVAP canister purge volu me 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 12.
12.CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection.
Is the inspection result normal?
PBIB1213E
Vacuum should exist.
Vacuum should exist.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1374 of 4801

NISSAN TEANA 2014 Service Manual
EC-374
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0456 EVAP CONTROL SYSTEM
YES >> GO TO 13.
NO >> Repair or reconnect the hose.
13.CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
Check the EVAP can

EC-374
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0456 EVAP CONTROL SYSTEM
YES >> GO TO 13.
NO >> Repair or reconnect the hose.
13.CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
Check the EVAP canister purge volume control solenoid valve. Refer to EC-345, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 14.
NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-21,
"Component Parts Location".
14.CHECK FUEL TANK TEMPERATURE SENSOR
Check the fuel tank temperature sensor. Refer to EC-305, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 15.
NO >> Replace fuel level sensor unit. Refer to FL-6, "Removal and Installation"
.
15.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check the EVAP control system pressure sensor. Refer to FL-18, "Removal and Installation"
.
Is the inspection result normal?
YES >> GO TO 16.
NO >> Replace EVAP control system pressure sensor. Refer to FL-18, "Removal and Installation"
.
16.CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks or improper connection.
Refer to EC-62, "EVAPORATIVE EMISSION SYSTEM : System Description"
.
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, kink, looseness and improper con-
nection. For location, refer to EC-62, "EVAPORATIVE EMISSION SYSTEM : System Description"
.
Is the inspection result normal?
YES >> GO TO 19.
NO >> Repair or replace hoses and tubes.
19.CHECK RECIRCULATION LINE
Check recirculation line between fuel filler tube and fuel tank for clogging, kink, cracks, looseness and
improper connection.
Is the inspection result normal?
YES >> GO TO 20.
NO >> Repair or replace hose, tube or fuel filler tube. Refer to FL-10, "Exploded View"
.
20.CHECK REFUELING EVAP VAPOR CUT VALVE
Check the refueling EVAP vapor cut valve. Refer to FL-13, "Inspection"
.
Is the inspection result normal?
YES >> GO TO 21.
NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to FL-10, "Removal and Installation"
.
21.CHECK FUEL LEVEL SENSOR
Check the fuel level sensor. Refer to MWI-62, "Component Inspection"
.
Is the inspection result normal?
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1375 of 4801

NISSAN TEANA 2014 Service Manual
P0456 EVAP CONTROL SYSTEMEC-375
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
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K L
M A
EC
NP
O
YES >> Check intermittent incident. Refer to
GI-43, "Intermittent Incident".
NO >> Replace fuel le

Page 1376 of 4801

NISSAN TEANA 2014 Service Manual
EC-376
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0460 FUEL LEVEL SENSOR
P0460 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462296
DTC DETECTION LOGIC
NOTE:
• If DTC P0460 is displayed with DTC UXXXX, fir

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