sensor NISSAN LATIO 2009 Service Repair Manual

EC-1370< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0455 EVAP CONTROL SYSTEM
2. Apply 12 volts DC to EVAP canister vent control valve (3). The valve will close. (Continue to appl y 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-1036, " Description " .
OK or NG OK >> GO TO 13.
NG >> Repair or replace. 12.
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.
OK or NG OK >> GO TO 15.
NG >> GO TO 14. 13.
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.
OK or NG OK >> GO TO 16.
NG >> GO TO 14. 14.
CHECK VACUUM HOSE BBIA0693E
SEF200U
Vacuum should exist.
Vacuum should exist.

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Check vacuum hoses for clogging or disconnection. Refer to
EC-1106, " Vacuum Hose Drawing " .
OK or NG OK (With CONSULT-III)>>GO TO 15.
OK (Without CONSULT-III)>>GO TO 16.
NG >> Repair or reconnect the hose. OK >> GO TO 17.
NG >> GO TO 16. Component Inspection " .
OK or NG OK >> GO TO 17.
NG >> Replace EVAP canister purge volume control solenoid valve. Component Inspection " .
OK or NG OK >> GO TO 18.
NG >> Replace fuel level sensor unit. Component Inspection " .
OK or NG OK >> GO TO 19.
NG >> Replace EVAP control system pressure sensor. .
OK or NG OK >> GO TO 20.
>> Repair or replace hoses and tubes. OK >> GO TO 21.
>> Repair or replace hoses, tubes or filler neck tube. Component Inspection " .
OK or NG OK >> GO TO 22.
>> Replace refueling EVAP vapor cut valve with fuel tank. .

DTC P0456 EVAP CONTROL SYSTEM
EC-1373
< SERVICE INFOMATION >
[MR TYPE 2] C
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DTC P0456 EVAP CONTROL SYSTEM
On Board Diagnosis Logic INFOID:0000000004500231
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 vac uum 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.
• Use only a genuine NISSAN rubber tube as a replacement. DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0456
0456 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
• Drain filter
• 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 PBIB3640E

DTC P0456 EVAP CONTROL SYSTEM
EC-1377
< SERVICE INFOMATION >
[MR TYPE 2] C
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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-1036, " Description " .
OK or NG OK >> GO TO 8.
NG >> Repair or replace. 8.
CHECK DRAIN FILTER
Refer to EC-1380, " 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-1040, " Removal and Installation " .
• EVAP canister vent control valve. Refer to EC-1340, " 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

EC-1378< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0456 EVAP CONTROL SYSTEM
2. Does water drain from the EVAP canister?
Yes or No Yes >> GO TO 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 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.
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 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.
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-1106, " Vacuum Hose Drawing " .
OK or NG PBIB1213E
Vacuum should exist.
Vacuum should exist.

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OK >> GO TO 16.
NG >> Repair or reconnect the hose. Component Inspection " .
OK or NG OK >> GO TO 17.
NG >> Replace EVAP canister purge volume control solenoid valve. Component Inspection " .
OK or NG OK >> GO TO 18.
NG >> Replace fuel level sensor unit. Component Inspection " .
OK or NG OK >> GO TO 19.
NG >> Replace EVAP control system pressure sensor. Description " .
OK or NG OK >> GO TO 20.
NG >> Repair or reconnect the hose. .
OK or NG OK >> GO TO 22.
NG >> Repair or replace hoses and tubes. OK >> GO TO 23.
NG >> Repair or replace hose, tube or filler neck tube. Component Inspection " .
OK or NG OK >> GO TO 24.
NG >> Replace refueling EVAP vapor cut valve with fuel tank. .
OK or NG OK >> GO TO 25.

EC-1380< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0456 EVAP CONTROL SYSTEM
NG >> Replace fuel level sensor unit. 25.
CHECK INTERMITTENT INCIDENT
Refer to EC-1138 .
>> INSPECTION END
Component Inspection INFOID:0000000004535235
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

DTC P0460 FUEL LEVEL SENSOR
EC-1381
< SERVICE INFOMATION >
[MR TYPE 2] C
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DTC P0460 FUEL LEVEL SENSOR
Component Description INFOID:0000000004500235
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 Logic INFOID:0000000004500236
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-1395 .
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 Procedure INFOID:0000000004500237
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, 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-1381, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:00000000045002381.
CHECK FUEL GAUGE OPERATION
Refer to DI-10, " Self-Diagnosis Mode of Combination Meter " .
OK or NG OK >> GO TO 2.
NG >> Follow the instruction of DI-10, " Self-Diagnosis Mode of Combination Meter " .
2.
CHECK FUEL LEVEL SENSOR AND CIRCUIT
Refer to DI-16, " 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

.
>> INSPECTION END
Removal and Installation INFOID:0000000004500239
FUEL LEVEL SENSOR
Refer to FL-5 .

DTC P0461 FUEL LEVEL SENSOR
EC-1383
< SERVICE INFOMATION >
[MR TYPE 2] C
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DTC P0461 FUEL LEVEL SENSOR
Component Description INFOID:0000000004501200
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 Logic INFOID:0000000004500241
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-1395 .
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 Check INFOID:0000000004500242
Use this procedure to check the overall function of the f uel 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 FL-4 .
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-1086, " 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