2014 NISSAN TEANA Service Manual

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Page 1857 of 4801

NISSAN TEANA 2014 Service Manual
P0456 EVAP CONTROL SYSTEMEC-857
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0456 EVAP CONTROL SYSTEM
DTC LogicINFOID:0000000009462704
DTC DETECTION LOGIC
This diagnosis detec

P0456 EVAP CONTROL SYSTEMEC-857
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0456 EVAP CONTROL SYSTEM
DTC LogicINFOID:0000000009462704
DTC DETECTION LOGIC
This diagnosis detects leaks in the EVAP line between fuel
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 come on.
• If the fuel filler cap is not tigh tened properly, the MIL may come on.
• Use only a genuine NISSAN rubber tube as a replacement.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
PBIB1026E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0456 Evaporative emission
control system leak • EVAP system has a
leak.
• EVAP system does not operate properly. • Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• Fuel filler cap remains open or fails to close.
• Foreign matter caught in fuel filler cap.
• Leak is in line between intake manifold and EVAP canister 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 so- lenoid valve
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1858 of 4801

NISSAN TEANA 2014 Service Manual
EC-858
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0456 EVAP CONTROL SYSTEM
If DTC Confirmation Procedure has been previously
conducted, always perform the following before conduct-
ing the next test.
1. Tu

Page 1859 of 4801

NISSAN TEANA 2014 Service Manual
P0456 EVAP CONTROL SYSTEMEC-859
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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2.CHECK FUEL FILLER CAP INSTALLATION
Check that the cap is tightened properly by rotating the cap c

Page 1860 of 4801

NISSAN TEANA 2014 Service Manual
EC-860
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0456 EVAP CONTROL SYSTEM
9.DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and vehicle fra

EC-860
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0456 EVAP CONTROL SYSTEM
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
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.
4. Touch “Qu” on CONSULT screen to increase “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. Refer to EC-580, "EVAPORATIVE EMISSION SYSTEM :
System Description".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Repair or reconnect the hose.
13.CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
Refer to EC-835, "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
Refer to EC-798, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 15.
NO >> Replace fuel level sensor unit.
15.CHECK EVAP CONTROL SYS TEM PRESSURE SENSOR
Refer to EC-849, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 16. Vacuum should exist.
Vacuum should exist.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1861 of 4801

NISSAN TEANA 2014 Service Manual
P0456 EVAP CONTROL SYSTEMEC-861
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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NO >> Replace EVAP control system pressure sensor.
16.CHECK EVAP PURGE LINE
Check EVAP purge line (

Page 1862 of 4801

NISSAN TEANA 2014 Service Manual
EC-862
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0456 EVAP CONTROL SYSTEM
3. Wipe clean valve housing.
4. Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
5. Check valve openi

Page 1863 of 4801

NISSAN TEANA 2014 Service Manual
P0460 FUEL LEVEL SENSOREC-863
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0460 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462707
DTC DETECTION LOGIC
NOTE:
• If DTC P0460

P0460 FUEL LEVEL SENSOREC-863
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0460 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462707
DTC DETECTION LOGIC
NOTE:
• If DTC P0460 is displayed with DTC UXXXX, first perform the tr ouble diagnosis for DTC UXXXX.
• If DTC P0460 is displayed with DT C P0607, first perform the trouble diagnosis for DTC P0607. Refer
to EC-884, "DTC Logic"
.
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 sloshi ng signal from the sensor, fuel level sensor malfunc-
tion is detected.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, 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 >> Proceed to EC-863, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462708
1.CHECK COMBINATION METER FUNCTION
Check combination meter function. Refer to MWI-18, "CONSULT Function (METER/M&A)"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Proceed to MWI-61, "Diagnosis Procedure"
.
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: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1864 of 4801

NISSAN TEANA 2014 Service Manual
EC-864
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0461 FUEL LEVEL SENSOR
P0461 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462709
DTC DETECTION LOGIC
NOTE:
• If DTC P0461 is displayed with DTC UXXXX, fir

EC-864
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0461 FUEL LEVEL SENSOR
P0461 FUEL LEVEL SENSOR
DTC LogicINFOID:0000000009462709
DTC DETECTION LOGIC
NOTE:
• If DTC P0461 is displayed with DTC UXXXX, first perform the tr ouble diagnosis for DTC UXXXX.
• If DTC P0461 is displayed with DTC P0607, first pe rform the trouble diagnosis for DTC P0607. Refer
to EC-884, "DTC Logic"
.
Driving long distances naturally affect fuel gauge level.
This diagnosis detects the fuel gauge malfunction of the gauge not moving even after a long distance has
been driven.
DTC CONFIRMATION PROCEDURE
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-864, "Component Function Check"
.
Use component function check to check th e overall function of the fuel level sensor. During this check, a 1st
trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-865, "Diagnosis Procedure"
.
Component Function CheckINFOID:0000000009462710
1.PRECONDITIONING
WARNING:
When performing the following procedure, always observe the hand ling of the fuel. Refer to FL-6,
"Exploded View".
TESTING CONDITION:
Before starting component function check, preparation of draining fuel and refilling fuel is required.
Will CONSULT be used?
YES >> GO TO 2.
NO >> GO TO 3.
2.PERFORM COMPONENT FUNCTION CHECK
With CONSULT
NOTE:
Start from step 10, if it is possibl e to confirm that the fuel cannot be drained by 30 (7-7/8 US gal, 6-5/
8 Imp gal) in advance.
1. Prepare a fuel container and a spare hose.
2. Release fuel pressure from fuel line, refer to EC-994, "Work Procedure"
.
3. Remove the fuel feed hose on the fuel level sensor unit.
4. Connect a spare fuel hose where the fuel feed hose was removed.
5. Turn ignition switch OFF and wait at least 10 seconds then turn ON.
6. Select “FUEL LEVEL SE” in “D ATA MONITOR” mode with CONSULT.
7. Check “FUEL LEVEL SE” output voltage and note it.
8. Select “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0461 Fuel level sensor circuit
range/performance The output signal of the fuel level sensor does
not change within the specified range even
though the vehicle has been driven a long dis-
tance. • 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: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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