NISSAN LATIO 2011 Service Repair Manual

P0447 EVAP CANISTER VENT CONTROL VALVEEC-307
< COMPONENT DIAGNOSIS > [HR16DE]
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YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK EVAP CANISTER VENT CONTROL VALVE CIRCUIT
With CONSULT-III
1. Turn ignition switch OFF and then turn ON.
2. Select “VENT CONTROL/V” in “A CTIVE TEST” mode with CONSULT-III.
3. Touch “ON/OFF” on CONSULT-III screen.
4. Check for operating sound of the valve.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 3.
3.CHECK EVAP CANISTER VENT CONT ROL VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect EVAP canister vent control valve harness connector.
3. Turn ignition switch ON.
4. Check the voltage between EVAP canister vent control valve harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness connectors E7, M69
• Harness connectors M12, B101
• Harness for open or short between EVAP cani ster vent control valve and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK EVAP CANISTER VENT CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP canister vent control valve harness connector and ECM harness con- nector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
• Junction block connector F8, E8 Clicking sound should be heard.
EVAP canister vent control valve
Ground Voltage
Connector Terminal
B105 1 Ground Battery voltage
PBIB0080E
EVAP canister vent control valve ECM
Continuity
Connector Terminal Connector Terminal
B105 2E16 28 Existed
Revision: May 2010 2011 Versa

EC-308
< COMPONENT DIAGNOSIS >[HR16DE]
P0447 EVAP CANISTER VENT CONTROL VALVE
• Harness connectors E7, M69
• Harness connectors M13, B102
• Harness for open or short between EVAP canister vent control valve and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK RUBBER TUBE FOR CLOGGING
1. Disconnect rubber tube connected to EV AP canister vent control valve.
2. Check the rubber tube for clogging.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Clean the rubber tube using an air blower.
8.CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-308, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace EVAP canister vent control valve. Refer to FL-15, "
Exploded View".
9.CHECK INTERMITTENT INCIDENT
Refer to EC-122, "
Diagnosis Procedure".
>> INSPECTION END
Component InspectionINFOID:0000000005929974
1.CHECK EVAP CANISTER VENT CONTROL VALVE-I
1. Turn ignition switch OFF.
2. Remove EVAP canister vent control valve from EVAP canister.
3. Check portion (A) of EVAP canister vent control valve for being rusted.
Is it rusted?
YES >> Replace EVAP canister vent control valve. Refer to FL-
15, "Exploded View".
NO >> GO TO 2.
2.CHECK EVAP CANISTER VENT CONTROL VALVE-II
With CONSULT-III
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode.
4. Check air passage continuity and operation delay time. Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT-III
Check air passage continuity and operation delay time under the fol-
lowing conditions.
Make sure new O-ring is installed properly.
JMBIA0168ZZ
VENT CONT/V condition Air passage continuity between (A) and (B)
ON Not existed
OFF Existed
JMBIA0169ZZ
Revision: May 2010 2011 Versa

P0447 EVAP CANISTER VENT CONTROL VALVEEC-309
< COMPONENT DIAGNOSIS > [HR16DE]
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Operation takes less than 1 second.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace EVAP canister vent control valve. Refer to
FL-15, "
Exploded View".
3.CHECK EVAP CANISTER VENT CONTROL VALVE-III
With CONSULT-III
1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode.
3. Check air passage continuity and operation delay time. Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT-III
1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2. Check air passage continuity and operation delay time under the following conditions.
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace EVAP canister vent control valve. Refer to FL-15, "
Exploded View".
ConditionAir passage continuity between (A) and (B)
12 V direct current supply between
terminals (1) and (2) Not existed
OFF Existed
VENT CONT/V condition Air passage continuity between (A) and (B)
ON Not existed
OFF Existed
Condition Air passage continuity between (A) and (B)
12 V direct current supply between
terminals (1) and (2) Not existed
OFF Existed
JMBIA0169ZZ
Revision: May 2010 2011 Versa

EC-310
< COMPONENT DIAGNOSIS >[HR16DE]
P0448 EVAP CANISTER VENT CONTROL VALVE
P0448 EVAP CANISTER VENT CONTROL VALVE
DescriptionINFOID:0000000006141092
The EVAP canister vent control
valve is located on the EVAP canis-
ter and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows “EVAP
Control System” diagnosis.
DTC LogicINFOID:0000000005929976
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1. Turn ignition switch ON and wait at least 5 seconds.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
4. Start engine and let it idle for at least 1 minute.
5. Repeat next procedures three times.
- Increase the engine speed up to 3,000 to 3,500 rpm and keep it for 2 minutes and 50 seconds to 3 min-
utes.
Never exceed 3 minutes.
- Fully released accelerator pedal and keep engine idle for about 5 seconds.
6. Repeat next procedure 20 times.
- Quickly increase the engine speed up to 4,000 to 4,500 rpm or more and keep it for 25 to 30 seconds.
PBIB1263E
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0448 EVAP canister vent control
valve close EVAP canister vent control valve remains
closed under specified driving conditions. • EVAP canister vent control valve
• EVAP control system pressure sensor
and the circuit
• Blocked rubber tube to EVAP canister
vent control valve
• EVAP canister is saturated with water
Revision: May 2010 2011 Versa

P0448 EVAP CANISTER VENT CONTROL VALVEEC-311
< COMPONENT DIAGNOSIS > [HR16DE]
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- Fully released accelerator pedal and keep engine idle for at least 35 seconds.
7. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT-III” above.
Is 1st trip DTC detected?
YES >> Go to EC-312, "Diagnosis Procedure".
NO >> INSPECTION END
PBIB0972E
Revision: May 2010 2011 Versa

EC-312
< COMPONENT DIAGNOSIS >[HR16DE]
P0448 EVAP CANISTER VENT CONTROL VALVE
Wiring Diagram
INFOID:0000000006141093
Diagnosis ProcedureINFOID:0000000005929978
1.CHECK RUBBER TUBE
1. Turn ignition switch OFF.
2. Disconnect rubber tube connected to EV AP canister vent control valve.
3. Check the rubber tube for clogging.
AABWA0310GB
Revision: May 2010 2011 Versa

P0448 EVAP CANISTER VENT CONTROL VALVEEC-313
< COMPONENT DIAGNOSIS > [HR16DE]
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Is the inspection result normal?
YES >> GO TO 2.
NO >> Clean rubber tube using an air blower.
2.CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-314, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace EVAP canister vent control valve. Refer to FL-15, "
Exploded View".
3.CHECK IF EVAP CANISTER IS SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent c ontrol 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 4.
NO >> GO TO 6.
4.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).
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 5.
5.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)".
6.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 7.
NO >> Replace EVAP control system pressure sensor. Refer to FL-15, "
Exploded View".
7.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-318, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace EVAP control system pressure sensor. Refer to FL-15, "
Exploded View".
8.CHECK INTERMITTENT INCIDENT
Refer to EC-122, "
Diagnosis Procedure".
PBIB1213E
Water should not exist.
Revision: May 2010 2011 Versa

EC-314
< COMPONENT DIAGNOSIS >[HR16DE]
P0448 EVAP CANISTER VENT CONTROL VALVE
>> INSPECTION END
Component InspectionINFOID:0000000006141094
1.CHECK EVAP CANISTER VENT CONTROL VALVE-I
1. Turn ignition switch OFF.
2. Remove EVAP canister vent control valve from EVAP canister.
3. Check portion (A) of EVAP canister vent control valve for being rusted.
Is it rusted?
YES >> Replace EVAP canister vent control valve. Refer to FL-
15, "Exploded View".
NO >> GO TO 2.
2.CHECK EVAP CANISTER VENT CONTROL VALVE-II
With CONSULT-III
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode.
4. Check air passage continuity and operation delay time. Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT-III
Check air passage continuity and operation delay time under the fol-
lowing conditions.
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace EVAP canister vent control valve. Refer to FL-15, "
Exploded View".
3.CHECK EVAP CANISTER VENT CONTROL VALVE-III
With CONSULT-III
1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode.
JMBIA0168ZZ
VENT CONT/V condition Air passage continuity between (A) and (B)
ON Not existed
OFF Existed
Condition Air passage continuity between (A) and (B)
12 V direct current supply between
terminals (1) and (2) Not existed
OFF Existed
JMBIA0169ZZ
Revision: May 2010 2011 Versa

P0448 EVAP CANISTER VENT CONTROL VALVEEC-315
< COMPONENT DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
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K L
M A
EC
NP
O
3. Check air passage continuity and operation delay time.
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT-III
1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2. Check air passage continuity and operation delay time under the
following conditions.
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace EVAP canister vent control valve. Refer to FL-15, "
Exploded View".
VENT CONT/V condition Air passage continuity between (A) and (B)
ON Not existed
OFF Existed
Condition Air passage continuity between (A) and (B)
12 V direct current supply between
terminals (1) and (2) Not existed
OFF Existed
JMBIA0169ZZ
Revision: May 2010 2011 Versa

EC-316
< COMPONENT DIAGNOSIS >[HR16DE]
P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
DescriptionINFOID:0000000005929980
The EVAP control system pressure s
ensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pres-
sure increases.
DTC LogicINFOID:0000000005929981
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Start engine and wait at least 40 seconds. NOTE:
Do not depress accelerator pedal even slightly.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-316, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000005929982
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connections E15, E24. Refer to EC-127, "
Ground Inspection".
Is the inspection result normal?
PBIB3370E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0451 EVAP control system
pressure sensor perfor-
mance ECM detects a sloshing signal from the EVAP
control system pressure sensor • Harness or connectors
(EVAP control system pressure sensor
circuit is shorted.)
[Crankshaft position sensor (POS) circuit
is shorted.]
(Accelerator pedal position sensor circuit
is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
• EVAP control system pressure sensor
• Crankshaft position sensor (POS)
• Accelerator pedal position sensor
• Refrigerant pressure sensor
Revision: May 2010 2011 Versa