2010 NISSAN LATIO air condition

EC-810
< SERVICE INFORMATION >[MR18DE]
DTC P0441 EVAP CONTROL SYSTEM
DTC P0441 EVAP CONTROL SYSTEM
System DescriptionINFOID:0000000005532657
NOTE:
If DTC P0441 is displayed with other DTC such
as P2122, P2123 P2127, P2128, P2138, first perform
trouble diagnosis for other DTC.
In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions.
Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP
canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP con-
trol system pressure sensor to intake manifold vacuum.
On Board Diagn osis LogicINFOID:0000000005532658
Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow
are adequate. If not, a ma lfunction is determined.
DTC Confirmation ProcedureINFOID:0000000005532659
CAUTION:
Always drive vehicle at a safe speed.
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:
Always perform test at a temperature of 5 °C (41 °F) or more.
WITH CONSULT-III
PBIB3640E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0441
0441 EVAP control system in-
correct purge flow • EVAP control system does not operate prop-
erly.
• EVAP control system has a leak between in-
take manifold and EVAP control system pres-
sure sensor. • EVAP canister purge volume control so-
lenoid valve stuck closed
• EVAP control system pressure sensor
and the circuit
• Loose, disconnected or improper con- nection of rubber tube
• Blocked rubber tube
• Cracked EVAP canister
• EVAP canister purge volume control so- lenoid valve circuit
• Accelerator pedal position sensor
• Blocked purge port
• EVAP canister vent control valve
• Drain filter
Revision: January 20102010 Versa

DTC P0441 EVAP CONTROL SYSTEMEC-811
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and let it idle for at least 70 seconds.
4. Select “PURG FLOW P0441” of “EVAPORATIVE
SYSTEM” in “DTC CONFIRMATION” mode with CON-
SULT-III.
5. Touch “START”.
If “COMPLETED” is displayed, go to step 7.
6. When the following conditions are met, “TESTING” will be displayed on the CONSULT-III screen. Maintain the conditions continuously until “TES TING” changes to “COMPLETED”. (It will take at least 35 seconds.)
If TESTING is not changed for a long time, retry from step 2.
7. Make sure that “OK” is displayed after touching “S ELF-DIAG RESULTS”. If “NG” is displayed, refer to EC-
811, "Diagnosis Procedure".
Overall Function CheckINFOID:0000000005532660
Use this procedure to check the overall monitoring function of the EVAP control system purge flow monitoring.
During this check, a 1st trip DTC might not be confirmed.
WITH GST
1. Lift up drive wheels.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and wait at least 70 seconds.
5. Set voltmeter probes to ECM terminals 42 (EVAP control system
pressure sensor signal) and ground.
6. Check EVAP control system pressure sensor value at idle speed and note it.
7. Establish and maintain the following conditions for at least 1 minute.
8. Verify that EVAP control system pressure sensor va lue stays 0.1 V less than the value at idle speed (mea-
sured at step 6) for at least 1 second.
9. If NG, go to EC-811, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005532661
1.CHECK EVAP CANISTER
1. Turn ignition switch OFF.
2. Check EVAP canister for cracks.
OK or NG
OK (With CONSULT-III)>>GO TO 2.
OK (Without CONSULT-III)>>GO TO 3.
NG >> Replace EVAP canister.
2.CHECK PURGE FLOW
Shift lever Suitable position
VHCL SPEED SE 32 - 120 km/h (20 - 75 MPH)
ENG SPEED 500 - 3,800 rpm
B/FUEL SCHDL 1.0 - 10.0 msec
COOLAN TEMP/S More than 0°C
Air conditioner switch ON
Headlamp switch ON
Rear window defogger switch ON
Engine speed Approx. 3,000 rpm
Shift lever Any position other than P, N or R
PBIB3313E
Revision: January 20102010 Versa

EC-822
< SERVICE INFORMATION >[MR18DE]
DTC P0443 EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID VALVE
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VA LV E
DescriptionINFOID:0000000005532667
SYSTEM DESCRIPTION
*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM though CAN communication line.
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/O FF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engi ne control. The optimum value stored in the ECM is
determined by considering various engine conditions. When t he engine is operating, the flow rate of fuel vapor
from the EVAP canister is r egulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. 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.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005532668
Specification data are reference values.
Sensor Input Signal to ECMECM
function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
1
EVAP can-
ister purge
flow controlEVAP canister purge volume
control solenoid valve
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor
Engine coolant temperature
Battery Battery voltage*
1
Throttle position sensorThrottle position
Accelerator pedal position sensor Accelerator pedal position
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
(Mixture ratio
feedback signal)
Fuel tank temperature sensor Fuel temperature in fuel tank
ABS actuator and electric unit (control unit) Vehicle speed*
2
Combination meter
PBIA9215J
Monitor item ConditionSpecification
PURG VOL C/V • Engine: After warming up
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting)
0%
2,000 rpm 0 - 50%
Revision: January 20102010 Versa

DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-829
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
• EVAP hose between EVAP canister and vehi
cle frame for clogging or poor connection
>> Repair hose or replace EVAP canister.
14.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Component InspectionINFOID:0000000005532673
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-III
Check air passage continuity of EVAP canister purge volume control
solenoid valve under the following conditions.
Without CONSULT-III
Check air passage continuity of EV AP canister purge volume control
solenoid valve under the following conditions.
Removal and InstallationINFOID:0000000005532674
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EM-137, "Component".
Condition
(PURG VOL CONT/V value) Air passage continuity
between A and B
100% Yes
0% No
PBIA9668J
ConditionAir passage continuity
between A and B
12 V direct current supply between
terminals 1 and 2 Ye s
No supply No
PBIA9560J
Revision: January 20102010 Versa

EC-830
< SERVICE INFORMATION >[MR18DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLE-
NOID VALVE
DescriptionINFOID:0000000005532675
SYSTEM DESCRIPTION
*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM though CAN communication line.
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/O FF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engi ne control. The optimum value stored in the ECM is
determined by considering various engine conditions. When t he engine is operating, the flow rate of fuel vapor
from the EVAP canister is r egulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. 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.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005532676
Specification data are reference values.
Sensor Input Signal to ECMECM
function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
1
EVAP can-
ister purge
flow controlEVAP canister purge volume
control solenoid valve
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor
Engine coolant temperature
Battery Battery voltage*
1
Throttle position sensorThrottle position
Accelerator pedal position sensor Accelerator pedal position
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
(Mixture ratio
feedback signal)
Fuel tank temperature sensor Fuel temperature in fuel tank
ABS actuator and electric unit (control unit) Vehicle speed*
2
Combination meter
PBIA9215J
Monitor item ConditionSpecification
PURG VOL C/V • Engine: After warming up
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting)
0%
2,000 rpm 0 - 50%
Revision: January 20102010 Versa

DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-835
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
With CONSULT-III
Check air passage continuity of EV
AP canister purge volume control
solenoid valve under the following conditions.
Without CONSULT-III
Check air passage continuity of EV AP canister purge volume control
solenoid valve under the following conditions.
Removal and InstallationINFOID:0000000005532682
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EM-137, "Component".
Condition
(PURG VOL CONT/V value) Air passage continuity
between A and B
100% Yes
0% No
PBIA9668J
ConditionAir passage continuity
between A and B
12 V direct current supply between
terminals 1 and 2 Ye s
No supply No
PBIA9560J
Revision: January 20102010 Versa

EC-840
< SERVICE INFORMATION >[MR18DE]
DTC P0447 EVAP CANISTER VENT CONTROL VALVE
OK or NG
OK >> GO TO 10.
NG >> Replace EVAP canister vent control valve.
10.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Component InspectionINFOID:0000000005532689
EVAP CANISTER VENT CONTROL VALVE
With CONSULT-III
1. Remove EVAP canister vent control valve from EVAP canister.
2. Check portion B of EVAP canister vent control valve for being
rusted.
If NG, replace EVAP canister vent control valve.
If OK, go to next step.
3. Reconnect harness connectors disconnected.
4. Turn ignition switch ON.
5. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode.
6. Check air passage continuity and operation delay time. Make sure new O-ring is installed properly.
Operation takes less than 1 second.
If NG, go to next step.
7. Clean the air passage (Portion A to B ) of EVAP canister vent control valve using an air blower.
8. Perform step 6 again. If NG, replace EVAP canister vent control valve.
Without CONSULT-III
1. Remove EVAP canister vent control valve from EVAP canister.
2. Check portion B of EVAP canister vent control valve for being
rusted.
PBIB1033E
Condition VENT CONTROL/V Air passage continuity between A and B
ON No
OFF Yes
PBIB1033E
Revision: January 20102010 Versa

DTC P0447 EVAP CANISTER VENT CONTROL VALVE
EC-841
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
3. 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.
If NG, go to next step.
4. Clean the air passage (Portion A to B ) of EVAP canister vent
control valve using an air blower.
5. Perform step 3 again. If NG, replace EVAP canister vent control valve.
Condition Air passage continuity between A and B
12 V direct current supply between
terminals 1 and 2 No
OFF Yes
PBIB1034E
Revision: January 20102010 Versa