2008 NISSAN LATIO Service Repair Manual

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Page 1449 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0455 EVAP CONTROL SYSTEM
EC-375
< SERVICE INFORMATION >
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3. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode.
4. Touch “Qu” on CONSULT-II screen to incre

Page 1450 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-376
< SERVICE INFORMATION >
DTC P0455 EVAP CONTROL SYSTEM
NG >> Replace fuel level sensor unit.
17.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-361, "
Component Inspection".
OK or

Page 1451 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0456 EVAP CONTROL SYSTEM
EC-377
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DTC P0456 EVAP CONTROL SYSTEM
On Board Diagnosis LogicINFOID:0000000001702881
This diagnosis detects very s

DTC P0456 EVAP CONTROL SYSTEM
EC-377
< SERVICE INFORMATION >
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DTC P0456 EVAP CONTROL SYSTEM
On Board Diagnosis LogicINFOID:0000000001702881
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 replacement. If an incorrect fuel filler cap is used, the
MIL may come on.
• If the fuel filler cap is not tightened properly, the MIL may come on.
• Use only a genuine NISSAN rubber tube as a replacement.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0456
0456Evaporative 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
PBIB1026E

Page 1452 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-378
< SERVICE INFORMATION >
DTC P0456 EVAP CONTROL SYSTEM
DTC Confirmation Procedure
INFOID:0000000001702882
NOTE:
•If DTC P0456 is displayed with P0442, first perform trouble diagnosis for DTC P

EC-378
< SERVICE INFORMATION >
DTC P0456 EVAP CONTROL SYSTEM
DTC Confirmation Procedure
INFOID:0000000001702882
NOTE:
•If DTC P0456 is displayed with P0442, first perform trouble diagnosis for DTC P0456.
•After repair, make sure that the hoses and clips are installed properly.
• If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
•Open engine hood before conducting 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.
-Refilled or drained the fuel.
-EVAP component parts is/are removed.
•Before performing the following procedure, confirm that battery voltage is more than 11V at idle.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
2. Make sure the following conditions are met.
FUEL LEVEL SE: 0.25 - 1.4V
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” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode with
CONSULT-II.
Follow the instruction displayed.
6. Make sure that “OK” is displayed.
If “NG” is displayed, refer to EC-379, "
Diagnosis Procedure".
NOTE:
•If the engine speed cannot be maintained within the range displayed on CONSULT-II screen, go
to EC-69, "
Basic Inspection".
•Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid
valve properly.
Overall Function CheckINFOID:0000000001702883
WITH GST
Use this procedure to check the overall function of the EVAP very small leak function. During this check, a 1st
trip DTC might not be confirmed.
CAUTION:
• Never use compressed air, doing so may damage the EVAP system.
• Do not start engine.
PBIB2644E
PBIB0837E

Page 1453 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0456 EVAP CONTROL SYSTEM
EC-379
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• Do not exceeded 4.12 kPa (0.042 kg/cm2, 0.6 psi).
1. Attach the EVAP service port adapter securely to t

Page 1454 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-380
< SERVICE INFORMATION >
DTC P0456 EVAP CONTROL SYSTEM
3.CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.

Page 1455 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0456 EVAP CONTROL SYSTEM
EC-381
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4. Using EVAP leak detector, locate the EVAP leak. For the leak
detector, refer to the instruction manual f

Page 1456 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-382
< SERVICE INFORMATION >
DTC P0456 EVAP CONTROL SYSTEM
2. Does water drain from the EVAP canister?
Ye s o r N o
Yes >> GO TO 10.
No (With CONSULT-II)>>GO TO 12.
No (Without CONSULT-II)>>GO TO

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