fuel filter NISSAN LATIO 2011 Service Owner's Manual

P0456 EVAP CONTROL SYSTEMEC-339
< COMPONENT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0456 EVAP CONTROL SYSTEM
DTC LogicINFOID:0000000005929998
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
PBIB1026E
Revision: May 2010 2011 Versa

EC-342
< COMPONENT DIAGNOSIS >[HR16DE]
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-344, "
Component Inspection (Fuel filler cap)".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace fuel filler cap with a genuine one. Refer to FL-10, "
Component".
5.CHECK FOR EVAP LEAK
Refer to EC-501, "
Inspection".
Is there any leak in EVAP line?
YES >> Repair or replace.
NO >> GO TO 6.
6.CHECK DRAIN FILTER
Refer to EC-345, "
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 FL-15, "
Exploded View".
• EVAP canister vent control valve. Refer to EC-308, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace EVAP canister vent control valve and O-ring. Refer to FL-15, "
Exploded View".
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).
PBIB1213E
Revision: May 2010 2011 Versa

P0456 EVAP CONTROL SYSTEMEC-343
< COMPONENT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
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. Refer to FL-15, "
Removal and Installation (HR16DE)".
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-79, "
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-297, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 15.
NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EM-27, "
Exploded View".
15.CHECK FUEL TANK TEMPERATURE SENSOR
Refer to EC-248, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 16.
NO >> Replace fuel level sensor unit, fuel filter and fuel pump assembly. Refer to FL-6, "
Removal and
Installation".
Vacuum should exist.
Vacuum should exist.
Revision: May 2010
2011 Versa

EC-344
< COMPONENT DIAGNOSIS >[HR16DE]
P0456 EVAP CONTROL SYSTEM
16.CHECK EVAP CONTROL SYS
TEM PRESSURE SENSOR
Refer to EC-318, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 17.
NO >> Replace EVAP control system pressure sensor. Refer to FL-15, "
Exploded View".
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-79, "
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-453, "
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-456, "
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, fuel filter and fuel pump assembly. Refer to FL-6, "
Removal and
Installation".
23.CHECK INTERMITTENT INCIDENT
Refer to EC-122, "
Diagnosis Procedure".
>> INSPECTION END
Component Inspection (Fuel filler cap)INFOID:0000000006141023
1.CHECK FUEL FILLER CAP
1. Turn ignition switch OFF.
2. Remove fuel filler cap.
Revision: May 2010 2011 Versa

P0456 EVAP CONTROL SYSTEMEC-345
< COMPONENT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
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. Refer to FL-10, "
Component".
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:0000000006141021
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: May 2010 2011 Versa

EC-440
< COMPONENT DIAGNOSIS >[HR16DE]
FUEL PUMP
NO >> Replace15 A fuse.
6.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV
1. Disconnect IPDM E/R harness connector E45.
2. Check the continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel pump”
harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E7, M69
• Harness connectors M12, B101
• Harness for open or short between IPDM E/R and “fuel level sensor unit and fuel pump”
>> Repair open circuit or short to power in harness or connectors.
8.CHECK FUEL PUMP GROUND CIRCUIT
1. Check the continuity between “fuel le vel sensor unit and fuel pump” and ground.
2. Also heck harness for short to power.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair open circuit or short to power in harness or connectors.
9.CHECK FUEL PUMP
Refer to EC-440, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace “fuel level sensor unit, fuel filter and fuel pump”. Refer to FL-6, "
Removal and Installa-
tion".
10.CHECK INTERMITTENT INCIDENT
Refer to EC-122, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R".
NO >> Repair or replace harness or connectors.
Component InspectionINFOID:0000000005930128
1.CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor uni t and fuel pump” harness connector.
IPDM E/RFuel level sensor unit and
fuel pump Continuity
Connector Terminal Connector Terminal
E45 36 B100 1 Existed
Fuel level sensor unit and fuel pump Ground Continuity
Connector Terminal
B100 3 Ground Existed
Revision: May 2010 2011 Versa

FUEL PUMPEC-441
< COMPONENT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
3. Check resistance between “fuel level sensor unit and fuel pump”
terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace “fuel level sensor unit, fuel filter and fuel pump”. Refer to FL-6, "
Removal and Installation".
Terminals Resistance
1 and 3 0.2 - 5.0 Ω [at 25°C (77 °F)]
SEC918C
Revision: May 2010 2011 Versa

EC-454
< COMPONENT DIAGNOSIS >[HR16DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
B: Cannot refuel/Fuel odor from the fuel
filler opening is strong while refueling.
Which symptom is present?
A>>GO TO 2.
B>>GO TO 8.
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 l ess than 1.9 kg (4.2 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 7.
4.REPLACE EVAP CANISTER
Replace EVAP canister with a new one. Refer to FL-15, "
Removal and Installation (HR16DE)".
>> GO TO 5.
5.CHECK DRAIN FILTER
Refer to EC-458, "
Component Inspection (Drain filter)".
Is the inspection result normal?
OK >> GO TO 6.
NO >> Replace drain filter.
6.DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose. Refer to FL-10, "
Component".
7.CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-456, "
Component Inspection (Refueli ng EVAP vapor cut valve)".
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to FL-10, "
Removal and Installation".
8.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 l ess than 1.9 kg (4.2 lb).
Is the inspection result normal?
PBIB1213E
Revision: May 2010 2011 Versa

ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-455
< COMPONENT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
YES >> GO TO 9.
NO >> GO TO 10.
9.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 10.
NO >> GO TO 13.
10.REPLACE EVAP CANISTER
Replace EVAP canister with a new one. Refer to FL-15, "
Removal and Installation (HR16DE)".
>> GO TO 11.
11 .CHECK DRAIN FILTER
Refer to EC-458, "
Component Inspection (Drain filter)".
Is the inspection result normal?
OK >> GO TO 12.
NO >> Replace drain filter.
12.DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose. Refer to FL-10, "
Component".
13.CHECK VENT HOSES AND VENT TUBES
Check hoses and tubes between EVAP canister and refueling control valve for clogging, kink, looseness and
improper connection.
Is the inspection result normal?
YES >> GO TO 14.
NO >> Repair or replace hoses and tubes.
14.CHECK RECIRCULATION LINE
Check recirculation line for clogging, dents and cracks.
Is the inspection result normal?
YES >> GO TO 15.
NO >> Replace fuel filler tube. Refer to FL-10, "
Component".
15.CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-456, "
Component Inspection (Refueling EVAP vapor cut valve)".
Is the inspection result normal?
YES >> GO TO 16.
NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to FL-10, "
Removal and Installation".
16.CHECK FUEL FILLER TUBE
Check fuel filler tube and hose connected to the fuel tank for clogging, dents and cracks.
Is the inspection result normal?
YES >> GO TO 17.
NO >> Replace fuel filler tube. Refer to FL-10, "
Component".
PBIB1213E
Revision: May 2010 2011 Versa

EC-458
< COMPONENT DIAGNOSIS >[HR16DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to
FL-10, "
Removal and Installation".
Component Inspection (Drain filter)INFOID:0000000006140980
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.
1. Filler tube 2. Recirculation line3. EVAP/ORVR line
4. Vacuum/pressure handy pump 5. Fuel tank
BBIA0694E
PBIB3641E
Revision: May 2010 2011 Versa