NISSAN LATIO 2010 Service Repair Manual

EC-876
< SERVICE INFORMATION >[MR18DE]
DTC P0456 EVAP CONTROL SYSTEM
5.INSTALL THE PRESSURE PUMP
To locate the EVAP leak, install EVAP service port adapter and pres-
sure pump to EVAP service port securely. For the location of EVAP
service port (2), refer to EC-525, "
Description".
• EVAP canister purge volume control solenoid valve (1)
• : Vehicle front NOTE:
Improper installation of the EV AP service port adapter to the
EVAP service port may cause leaking.
With CONSULT-III>>GO TO 6.
Without CONSULT-III>>GO TO 7.
6.CHECK FOR EVAP LEAK
With CONSULT-III
1. Turn ignition switch ON.
2. Select “EVAP SYSTEM CLOSE” of “WORK SUPPORT” mode with CONSULT-III.
3. Touch “START” and apply pressure into the EVAP line until the pressure indicator reaches the middle of the bar graph.
CAUTION:
• Never use compressed air or a high pressure pump.
• Do not exceed 4.12 kPa (0.042 kg/cm
2, 0.6 psi) of pressure in the system.
4. Using EVAP leak detector, locate the EVAP leak. For the leak detector, refer to the instruction manual for more details.
Refer to EC-525, "
Description".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace.
7.CHECK FOR EVAP LEAK
Without CONSULT-III
1. Turn ignition switch OFF.
BBIA0703E
SEF916U
SEF200U
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DTC P0456 EVAP CONTROL SYSTEMEC-877
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2. Apply 12 volts DC to EVAP canister vent control valve (3). The
valve will close. (Continue to apply 12 volts until the end of test.)
- EVAP control system pressure sensor (1)
- EVAP canister (2)
3. Pressurize the EVAP line using pressure pump with 1.3 to 2.7 kPa (10 to 20 mmHg, 0.39 to 0.79 inHg),
then remove pump and EVAP service port adapter.
CAUTION:
• Never use compressed air or a high pressure pump.
• Do not exceed 4.12 kPa (0.042 kg/cm
2, 0.6 psi) of pressure in the system.
4. Using EVAP leak detector, locate the EVAP leak. For the leak detector, refer to the instruction manual for more details.
Refer to EC-525, "
Description".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace.
8.CHECK DRAIN FILTER
Refer to EC-880, "
Component Inspection".
OK or NG
OK >> GO TO 9.
NG >> Replace drain filter.
9.CHECK EVAP CANISTER VENT CONTROL VALVE
Check the following.
• EVAP canister vent control valve is installed properly. Refer to EC-529, "
Removal and Installation".
• EVAP canister vent control valve. Refer to EC-840, "
Component Inspection".
OK or NG
OK >> GO TO 10.
NG >> Repair or replace EVAP canister vent control valve and O-ring.
10.CHECK IF EVAP CANISTER SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent c ontrol valve and EVAP control system pressure sensor
attached.
BBIA0693E
SEF200U
Revision: January 20102010 Versa

EC-878
< SERVICE INFORMATION >[MR18DE]
DTC P0456 EVAP CONTROL SYSTEM
2. Does water drain from the EVAP canister?
Ye s o r N o
Ye s > > G O T O 11 .
No (With CONSULT-III)>>GO TO 13.
No (Without CONSULT-III)>>GO TO 14.
11 .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).
OK or NG
OK (With CONSULT-III)>>GO TO 13.
OK (Without CONSULT-III)>>GO TO 14.
NG >> GO TO 12.
12.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.
13.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 CONT/V” opening to 100%.
5. Check vacuum hose for vacuum.
OK or NG
OK >> GO TO 16.
NG >> GO TO 15.
14.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.
OK or NG
OK >> GO TO 17.
NG >> GO TO 15.
15.CHECK VACUUM HOSE
Check vacuum hoses for clogging or disconnection. Refer to EC-602, "
Vacuum Hose Drawing".
OK or NG
PBIB1213E
Vacuum should exist.
Vacuum should exist.
Revision: January 20102010 Versa

DTC P0456 EVAP CONTROL SYSTEMEC-879
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OK >> GO TO 16.
NG >> Repair or reconnect the hose.
16.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-829, "
Component Inspection".
OK or NG
OK >> GO TO 17.
NG >> Replace EVAP canister purge volume control solenoid valve.
17.CHECK FUEL TANK TEMPERATURE SENSOR
Refer to EC-773, "
Component Inspection".
OK or NG
OK >> GO TO 18.
NG >> Replace fuel level sensor unit.
18.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-850, "
Component Inspection".
OK or NG
OK >> GO TO 19.
NG >> Replace EVAP control system pressure sensor.
19.CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks or improper connection.
Refer to EC-525, "
Description".
OK or NG
OK >> GO TO 20.
NG >> Repair or reconnect the hose.
20.CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 21.
21.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-532
.
OK or NG
OK >> GO TO 22.
NG >> Repair or replace hoses and tubes.
22.CHECK RECIRCULATION LINE
Check recirculation line between filler neck tube and fuel tank for clogging, kink, cracks, looseness and
improper connection.
OK or NG
OK >> GO TO 23.
NG >> Repair or replace hose, tube or filler neck tube.
23.CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-535, "
Component Inspection".
OK or NG
OK >> GO TO 24.
NG >> Replace refueling EVAP vapor cut valve with fuel tank.
24.CHECK FUEL LEVEL SENSOR
Refer to DI-20
.
OK or NG
OK >> GO TO 25.
Revision: January 20102010 Versa

EC-880
< SERVICE INFORMATION >[MR18DE]
DTC P0456 EVAP CONTROL SYSTEM
NG >> Replace fuel level sensor unit.
25.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Component InspectionINFOID:0000000005532725
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.
7. If NG, replace drain filter.
PBIB3641E
Revision: January 20102010 Versa

DTC P0460 FUEL LEVEL SENSOREC-881
< SERVICE INFORMATION > [MR18DE]
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DTC P0460 FUEL LEVEL SENSOR
Component DescriptionINFOID:0000000005532726
The fuel level sensor (3) is mounted
in the fuel level sensor unit. The
sensor detects a fuel level in the fuel tank and transmits a signal to
the combination meter. The combination meter sends the fuel level
sensor signal to the ECM through CAN communication line.
It consists of two parts, one is mechanical float and the other is vari-
able resistor. Fuel level sensor output voltage changes depending on
the movement of the fuel mechanical float.
• Fuel level sensor unit and fuel pump (1)
• Fuel pressure regulator (2)
• Fuel tank temperature sensor (4)
On Board Diagnosis LogicINFOID:0000000005532727
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-895
.
When the vehicle is parked, naturally the fuel level in the fuel tank is 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 ProcedureINFOID:0000000005532728
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
1. Start engine and wait maximum of 2 consecutive minutes.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-881, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005532729
1.CHECK FUEL GAUGE OPERATION
Refer to DI-11, "
Self-Diagnosis Mode of Combination Meter".
OK or NG
OK >> GO TO 2.
NG >> Follow the instruction of DI-11, "
Self-Diagnosis Mode of Combination Meter".
2.CHECK FUEL LEVEL SENSOR AND CIRCUIT
Refer to DI-17, "
Fuel Level Sensor Signal Inspection".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace malfunctioning parts.
BBIA0704E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0460
0460 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
(CAN communication line is open or
shorted)
• Harness or connectors (Fuel level sensor circuit is open or short-
ed)
• Combination meter
• Fuel level sensor
Revision: January 20102010 Versa

EC-882
< SERVICE INFORMATION >[MR18DE]
DTC P0460 FUEL LEVEL SENSOR
3.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Removal and InstallationINFOID:0000000005532730
FUEL LEVEL SENSOR
Refer to FL-6, "Removal and Installation".
Revision: January 20102010 Versa

DTC P0461 FUEL LEVEL SENSOREC-883
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DTC P0461 FUEL LEVEL SENSOR
Component DescriptionINFOID:0000000005532731
The fuel level sensor (3) is mounted
in the fuel level sensor unit. The
sensor detects a fuel level in the fuel tank and transmits a signal to
the combination meter. The combination meter sends the fuel level
sensor signal to the ECM through CAN communication line.
It consists of two parts, one is mechanical float and the other is vari-
able resistor. Fuel level sensor output voltage changes depending on
the movement of the fuel mechanical float.
• Fuel level sensor unit and fuel pump (1)
• Fuel pressure regulator (2)
• Fuel tank temperature sensor (4)
On Board Diagnosis LogicINFOID:0000000005532732
NOTE:
• If DTC P0461 is displayed with DTC UXXXX, first perform the tr ouble diagnosis for DTC UXXXX.
• If DTC P0461 is displayed with DT C P0607, first perform the trouble diagnosis for DTC P0607. Refer
to EC-895
.
This diagnosis detects the fuel gauge malfunction of the gauge not moving even after a long distance has
been driven.Driving long distances naturally affect fuel gauge level.
Overall Function CheckINFOID:0000000005532733
Use this procedure to check the overall function of the fuel level sensor function. During this check, a 1st trip
DTC might not be confirmed.
WARNING:
When performing following procedure, be sure to observe the handling of the fuel.
Refer to GI-3, "
General Precaution".
TESTING CONDITION:
Before starting overall function check, preparation of draining fuel and refilling fuel is required.
WITH CONSULT-III
NOTE:
Start from step 10, if it is possible 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-582, "
Fuel Pressure Check".
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 “DAT A MONITOR” mode with CONSULT-III.
7. Check “FUEL LEVEL SE” output voltage and note it.
8. Select “FUEL PUMP RELAY” in “A CTIVE TEST” mode with CONSULT-III.
9. Touch “ON” and drain fuel approximately 30 (7-7/8 US gal, 6-5/8 Imp gal) and stop it.
10. Check “FUEL LEVEL SE” output voltage and note it.
11. Fill fuel into the fuel tank for 30 (7-7/8 US gal, 6-5/8 Imp gal).
BBIA0704E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0461
0461 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
(CAN communication line is open or
shorted)
• Harness or connectors (Fuel level sensor circuit is open or short-
ed)
• Combination meter
• Fuel level sensor
Revision: January 20102010 Versa

EC-884
< SERVICE INFORMATION >[MR18DE]
DTC P0461 FUEL LEVEL SENSOR
12. Check “FUEL LEVEL SE” output voltage and note it.
13. Confirm whether the voltage changes more than 0.03 V during step 7 to 10 and 10 to 12.
If NG, go to EC-884, "
Diagnosis Procedure".
WITH GST
NOTE:
Start from step 8, if it is possible 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-582, "
Fuel Pressure Check".
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 ON.
6. Drain fuel by 30 (7-7/8 US gal, 6-5/8 Imp gal) from the fuel tank using proper equipment.
7. Confirm that the fuel gauge indication varies.
8. Fill fuel into the fuel tank for 30 (7-7/8 US gal, 6-5/8 Imp gal).
9. Confirm that the fuel gauge indication varies.
10. If NG, go to EC-884, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005532734
1.CHECK FUEL GAUGE OPERATION
Refer to DI-11, "
Self-Diagnosis Mode of Combination Meter".
OK or NG
OK >> GO TO 2.
NG >> Follow the instruction of DI-11, "
Self-Diagnosis Mode of Combination Meter".
2.CHECK FUEL LEVEL SENSOR AND CIRCUIT
Refer to DI-17, "
Fuel Level Sensor Signal Inspection".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace malfunctioning parts.
3.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Removal and InstallationINFOID:0000000005532735
FUEL LEVEL SENSOR
Refer to FL-6, "Removal and Installation".
Revision: January 20102010 Versa

DTC P0462, P0463 FUEL LEVEL SENSOREC-885
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DTC P0462, P0463 FUEL LEVEL SENSOR
Component DescriptionINFOID:0000000005532736
The fuel level sensor (3) is mounted
in the fuel level sensor unit. The
sensor detects a fuel level in the fuel tank and transmits a signal to
the combination meter. The combination meter sends the fuel level
sensor signal to the ECM through CAN communication line.
It consists of two parts, one is mechanical float and the other is vari-
able resistor. Fuel level sensor output voltage changes depending on
the movement of the fuel mechanical float.
• Fuel level sensor unit and fuel pump (1)
• Fuel pressure regulator (2)
• Fuel tank temperature sensor (4)
On Board Diagnosis LogicINFOID:0000000005532737
NOTE:
• If DTC P0462 or P0463 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC
UXXXX.
• If DTC P0462 or P0463 is displayed with DTC P0607, first perform the trouble diagnosis for DTC
P0607. Refer to EC-895
.
DTC Confirmation ProcedureINFOID:0000000005532738
NOTE:
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:
Before performing the following procedure, confirm that battery voltag e is more than 11 V at ignition
switch ON.
1. Turn ignition switch ON and wait at least 5 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-885, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005532739
1.CHECK FUEL GAUGE OPERATION
Refer to DI-11, "
Self-Diagnosis Mode of Combination Meter".
OK or NG
OK >> GO TO 2.
NG >> Follow the instruction of DI-11, "
Self-Diagnosis Mode of Combination Meter".
2.CHECK FUEL LEVEL SENSOR AND CIRCUIT
Refer to DI-17, "
Fuel Level Sensor Signal Inspection".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace malfunctioning parts.
BBIA0704E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0462
0462 Fuel level sensor circuit
low input An excessively low voltage from the sensor is
sent to ECM. • Harness or connectors
(CAN communication line is open or
shorted)
• Harness or connectors
(Fuel level sensor circuit is open or short-
ed)
• Combination meter
• Fuel level sensor
P0463
0463
Fuel level sensor circuit
high input An excessively high voltage from the sensor is
sent to ECM.
Revision: January 20102010 Versa