NISSAN LATIO 2010 Service Repair Manual

EC-326
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P0455 EVAP CONTROL SYSTEM
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair or replace EVAP cani
ster vent control valve and O-ring.
9.CHECK FOR EVAP LEAK
Refer to EC-498, "
Inspection".
Is there any leak in EVAP line?
YES >> Repair or replace.
NO-1 >> With CONSULT-III: GO TO 10.
NO-2 >> Without CONSULT-III: GO TO 11.
10.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1. Disconnect vacuum hose to EVAP canister purge volume control solenoid valve at EVAP service port.
2. Start engine.
3. Perform “PURG VOL CONT/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 to 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 14.
NO >> GO TO 12.
12.CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to EC-68, "
System Description".
Is the inspection result normal?
YES-1 >> With CONSULT-III: GO TO 13.
YES-2 >> Without CONSULT-III: GO TO 14.
NO >> Repair or reconnect the hose.
13.CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
With CONSULT-III
1. Start engine.
2. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III. Check that engine speed var- ies according to the valve opening.
Does engine speed vary according to the valve opening?
YES >> GO TO 15.
NO >> GO TO 14.
14.CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
Refer to EC-290, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 15. Vacuum should exist.
Vacuum should exist.
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NO >> Replace EVAP canister purge volume control solenoid valve.
15.CHECK FUEL TANK TEMPERATURE SENSOR
Refer to EC-238, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 16.
NO >> Replace fuel level sensor unit.
16.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-308, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 17.
NO >> Replace EVAP control system pressure sensor.
17.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-443, "
Description".
Is the inspection result normal?
YES >> GO TO 18.
NO >> Repair or replace hoses and tubes.
18.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 19.
NO >> Repair or replace hose, tube or fuel filler tube.
19.CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-446, "
Component Inspection (Refueling EVAP vapor cut valve)".
Is the inspection result normal?
YES >> GO TO 20.
NO >> Replace refueling EVAP vapor cut valve with fuel tank.
20.CHECK INTERMITTENT INCIDENT
Refer to EC-114, "
Diagnosis Procedure".
>> INSPECTION END
Component Inspection (Fuel filler cap)INFOID:0000000005398481
1.CHECK FUEL FILLER CAP
1. Turn ignition switch OFF.
2. Remove fuel filler cap.
3. Wipe clean valve housing.
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EC-328
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P0455 EVAP CONTROL SYSTEM
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
Component Inspection (Drain filter)INFOID:0000000005398482
1.CHECK DRAIN FILTER
1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.
4. Blow air into port A and check t hat it flows freely out of port B.
5. Block port B.
6. Blow air into port A and check that there is no leakage.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace drain filter. 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)
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P0456 EVAP CONTROL SYSTEM
DTC LogicINFOID:0000000005398483
DTC DETECTION LOGIC
This diagnosis detects very small leaks in the EVAP line between fuel tank and EVAP canister purge volume
control solenoid valve, using the intake manifold vacuum in the same way as conventional EVAP small leak
diagnosis.
If ECM judges a leak which corresponds to a very
small leak, the very small leak P0456 will be detected.
If ECM judges a leak equivalent to a small leak, EVAP small leak P0442 will be detected.
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.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0456 Evaporative emission
control system very
small leak (negative
pressure check) • EVAP system has a very small leak.
• EVAP system does not operate prop-
erly. • 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 con- trol 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 miss- ing 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 vol- ume control solenoid valve
• Drain filter
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EC-330
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P0456 EVAP CONTROL SYSTEM
• Use only a genuine NISSAN rubber tube as a replacement.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
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:
• If DTC P0456 is displayed with P0442, firs t perform trouble diagnosis for DTC P0456.
• After repair, make sure that the hoses and clips are installed properly.
• Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve
properly.
TESTING CONDITION:
• Open engine hood before conducting following procedure.
• If any of following conditions are met just be fore the DTC CONFIRMATION PROCEDURE, leave the
vehicle for more than 1 hour.
- Fuel filler cap is removed.
- Fuel is refilled or drained.
- EVAP component parts is/are removed.
• Before performing the following procedure, confirm th at 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. Make sure 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 refilling/draining
fuel until the output voltage condition 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 “EVAP V/S LEAK P0456/P1456” of “EVAPO RATIVE SYSTEM” in “DTC WORK SUPPORT” mode
with CONSULT-III.
Follow the instruction displayed.
NOTE:
If the engine speed canno t be maintained within the range displayed on CONSULT-III screen, go to
EC-20, "
BASIC INSPECTION : Special Repair Requirement".
Which is displayed on CONSULT-III?
OK >> INSPECTION END
NG >> Go to EC-331, "
Diagnosis Procedure".
4.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-331, "
Component Function Check".
NOTE:
Use component function check to check the overall function of the EVAP very small leak function. During this
check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
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NO >> Go to
EC-331, "Diagnosis Procedure".
Component Function CheckINFOID:0000000005398484
1.PERFORM COMPONENT FUNCTION CHECK
With GST
CAUTION:
• Do not use compressed air, doing so may damage the EVAP system.
• Do not start engine.
• Do not exceeded 4.12 kPa (0.042 kg/cm
2, 0.6 psi).
1. Attach the EVAP service port adapter 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 EC-331, "
Diagnosis Procedure".
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 ProcedureINFOID:0000000005398485
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.
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P0456 EVAP CONTROL SYSTEM
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. Then 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
Refer to EC-334, "
Component Inspection (Fuel filler cap)".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace fuel filler cap with a genuine one.
5.CHECK FOR EVAP LEAK
Refer to EC-498, "
Inspection".
Is there any leak in EVAP line?
YES >> Repair or replace.
NO >> GO TO 6.
6.CHECK DRAIN FILTER
Refer to EC-335, "
Component Inspection (Drain filter)".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace drain filter.
7.CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following.
• EVAP canister vent control valve is installed properly. Refer to EC-500, "
Exploded View".
• EVAP canister vent control valve. Refer to EC-298, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace EVAP cani ster vent control valve and O-ring.
8.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 EVAP canister?
YES >> GO TO 9.
NO-1 >> With CONSULT-III: GO TO 11.
NO-2 >> Without CONSULT-III: GO TO 12.
9.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 1.9 kg (4.2 lb).
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Is the inspection result normal?
YES-1 >> With CONSULT-III: GO TO 11.
YES-2 >> Without CONSULT-III: GO TO 12.
NO >> GO TO 10.
10.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.
11 .CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1. Disconnect vacuum hose to EVAP canister purge volu me control solenoid valve at EVAP service port.
2. Start engine.
3. Perform “PURG VOL CONT/V ” in “ACTIVE TEST” mode.
4. Touch “Qu” on CONSULT-III screen to increase “PURG VOL CONT/V” opening to 100%.
5. Check vacuum hose for vacuum.
Is the inspection result normal?
YES >> GO TO 14.
NO >> GO TO 13.
12.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 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 15.
NO >> GO TO 13.
13.CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to EC-68, "
System Description".
Is the inspection result normal?
YES >> GO TO 14.
NO >> Repair or reconnect the hose.
14.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-287, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 15.
NO >> Replace EVAP canister purge volume control solenoid valve.
15.CHECK FUEL TANK TEMPERATURE SENSOR
Refer to EC-238, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 16.
NO >> Replace fuel level sensor unit.
16.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR Vacuum should exist.
Vacuum should exist.
Revision: January 20102010 Versa

EC-334
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P0456 EVAP CONTROL SYSTEM
Refer to
EC-308, "Component Inspection".
Is the inspection result normal?
YES >> GO TO 17.
NO >> Replace EVAP control system pressure sensor.
17.CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks or improper connection.
Refer to EC-68, "
System Description".
Is the inspection result normal?
YES >> GO TO 18.
NO >> Repair or reconnect the hose.
18.CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 19.
19.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-443, "
Description".
Is the inspection result normal?
YES >> GO TO 20.
NO >> Repair or replace hoses and tubes.
20.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 21.
NO >> Repair or replace hose, tube or fuel filler tube.
21.CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-446, "
Component Inspection (Refueli ng EVAP vapor cut valve)".
Is the inspection result normal?
YES >> GO TO 22.
NO >> Replace refueling EVAP vapor cut valve with fuel tank.
22.CHECK FUEL LEVEL SENSOR
Refer to DI-17, "
Fuel Level Sensor Signal Inspection".
Is the inspection result normal?
YES >> GO TO 23.
NO >> Replace fuel level sensor unit.
23.CHECK INTERMITTENT INCIDENT
Refer to EC-114, "
Diagnosis Procedure".
>> INSPECTION END
Component Inspection (Fuel filler cap)INFOID:0000000005398486
1.CHECK FUEL FILLER CAP
1. Turn ignition switch OFF.
2. Remove fuel filler cap.
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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
Component Inspection (Drain filter)INFOID:0000000005398487
1.CHECK DRAIN FILTER
1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.
4. Blow air into port A and check that it flows freely out of port B.
5. Block port B.
6. Blow air into port A and check that there is no leakage.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace drain filter.
SEF445Y
Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm2, 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
PBIB3641E
Revision: January 20102010 Versa