NISSAN LATIO 2009 Service Repair Manual

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• 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 CONFIRMATION PROCEDURE YES >> GO TO 2.
NO >> GO TO 3. BASIC INSPECTION : Special Repair Requirement " .
Which is displayed on CONSULT-III screen? OK >> INSPECTION END
NG >> Go to EC-285, " Diagnosis Procedure " .
How to Set SRT Code " before driving
vehicle.
1. Start engine.
2. Drive vehicle according to DRIVING PATTERN.
3. Stop vehicle.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Select Service $07 with GST.
Is 1st trip DTC displayed? YES-1 >> P0441: Go to
EC-280, " Diagnosis Procedure " .
YES-2 >> P0442: Go to EC-285, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:0000000004780173

YES >> GO TO 2.
NO >> Replace with genuine NISSAN fuel filler cap. 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. YES >> GO TO 5.
NO >> GO TO 4. Component Inspection (Fuel filler cap) " .
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace fuel filler cap with a genuine one. Inspection " .
Is there any leak in EVAP line? YES >> Repair or replace.
NO >> GO TO 6. Component Inspection (Drain filter) " .
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace drain filter. Exploded View " .
• EVAP canister vent control valve. Refer to EC-304, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 8.
NO >> Repair or replace EVAP cani ster vent control valve and O-ring.

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2. Does water drain from the EVAP canister?
Does water drain from the EVAP canister?YES >> GO TO 9.
NO-1 >> With CONSULT-III: GO TO 11.
NO-2 >> Without CONSULT-III: GO TO 12. YES-1 >> With CONSULT-III: GO TO 11.
YES-2 >> Without CONSULT-III: GO TO 12.
NO >> GO TO 10. YES >> GO TO 14.
NO >> GO TO 13. YES >> GO TO 14.
NO >> GO TO 13. System Description " .
Is the inspection result normal? Vacuum should exist.

Component Inspection " .
Is the inspection result normal? YES >> GO TO 15.
NO >> Replace EVAP canister purge volume control solenoid valve. Component Inspection " .
Is the inspection result normal? YES >> GO TO 16.
NO >> Replace fuel level sensor unit. DTC Logic " .
Is the inspection result normal? YES >> GO TO 17.
NO >> Replace EVAP control system pressure sensor. System Description " .
Is the inspection result normal? YES >> GO TO 18.
NO >> Repair or reconnect the hose. Description " .
Is the inspection result normal? YES >> GO TO 20.
NO >> Repair or replace hoses and tubes. YES >> GO TO 21.
NO >> Repair or replace hose, tube or fuel filler tube. 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. Fuel Level Sensor Signal Inspection " .
Is the inspection result normal? YES >> GO TO 23.

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NO >> Replace fuel level sensor unit. Diagnosis Procedure " .
>> INSPECTION END
Component Inspection (Fuel filler cap) INFOID:0000000004803116YES >> INSPECTION END
NO >> GO TO 2.

EC-290< COMPONENT DIAGNOSIS >
[HR16DE]
P0442 EVAP CONTROL SYSTEM
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. PBIB3641E

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P0443 EVAP CANISTER PURGE VOLU
ME CONTROL SOLENOID VALVE
Description INFOID:0000000004780175
The EVAP canister purge volume control solenoid valve is used to
control the flow rate of fuel v apor from the EVAP canister. The EVAP
canister purge volume control solenoid valve is moved by ON/OFF
pulses from the ECM. The longer the ON pulse, the greater the
amount of fuel vapor that will flow through the valve.
DTC Logic INFOID:0000000004780176
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE YES >> GO TO 2.
NO >> GO TO 4. YES >> Go to
EC-293, " Diagnosis Procedure " .
NO >> GO TO 3.

OK >> INSPECTION END
NG >> Go to EC-293, " Diagnosis Procedure " .
YES >> Go to
EC-293, " Diagnosis Procedure " .
NO >> GO TO 5. YES >> Go to
EC-293, " Diagnosis Procedure " .
NO >> INSPECTION END ECM
Ground Voltage (V)
Connector Terminal
F11 43
(Fuel tank temperature sensor signal) Ground 3.1 - 4.0

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Wiring Diagram
INFOID:0000000004780686
Diagnosis Procedure INFOID:0000000004780177

EC-294< COMPONENT DIAGNOSIS >
[HR16DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
4. Check the voltage between EVAP canister purge volume control solenoid valve harness connector and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2. 2.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• IPDM E/R harness connector E43
• Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R
• Harness for open or short between EVAP canister purge volume control solenoid valve and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK EVAP CANISTER PURGE VOLUME CONTRO L SOLENOID VALVE OUTPUT SIGNAL CIRCUITFOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP canister pur ge volume control solenoid valve harness connector and
ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors. 4.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check connectors for water.
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace EVAP control system pressure sensor. 5.
CHECK EVAP CONTROL SY STEM PRESSURE SENSOR
Refer to EC-314, " Component Inspection " .
Is the inspection result normal? YES-1 >> With CONSULT-III: GO TO 6.
YES-2 >> Without CONSULT-III: GO TO 7.
NO >> Replace EVAP control system pressure sensor. 6.
CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
With CONSULT-III
1. Turn ignition switch OFF. EVAP canister purge volume
control solenoid valve Ground Voltage
Connector Terminal
F22 1 Ground Battery voltage PBIB0080E
EVAP canister purge volume
control solenoid valve ECM
Continuity
Connector Terminal Connector Terminal
F22 2 F10 9 Existed Water should not exist.