2014 NISSAN TEANA Service Manual

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Page 1833 of 4801

NISSAN TEANA 2014 Service Manual
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-833
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P0443 EVAP CANISTER PURGE VOLU
ME CONTROL SOLENOID VALVE
DTC LogicIN

P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-833
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P0443 EVAP CANISTER PURGE VOLU
ME CONTROL SOLENOID VALVE
DTC LogicINFOID:0000000009462683
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Always perform test at a temperature of 5 °C (41 °F) or more.
Do you have CONSULT
YES >> GO TO 2.
NO >> GO TO 3.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON.
6. Select “PURG VOL CN/V P1444” of “EVAPORA TIVE SYSTEM” in “DTC WORK SUPPORT” mode with
CONSULT.
7. Touch “START”.
8. Start engine and let it idle until “TESTING” on CONSUL T changes to “COMPLETED”. (It will take approxi-
mately 10 seconds.)
If “TESTING” is not displayed afte r 5 minutes, retry from step 2.
9. Touch “SELF-DIAG RESULTS”.
Which is displayed on CONSULT screen?
OK >> INSPECTION END
NG >> Proceed to EC-834, "Diagnosis Procedure"
.
3.PERFORM DTC CONFIRMATION PROCEDURE
With GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Start engine and let it idle for at least 20 seconds.
6. Check 1st trip DTC.
Is 1st trip DTC displayed?
YES >> Proceed to EC-834, "Diagnosis Procedure".
NO >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0443 EVAP canister purge
volume control solenoid
valve The canister purge flow is detected during
the specified driving conditions, even
when EVAP canister purge volume control
solenoid valve is completely closed. • EVAP control system pressure sensor
• EVAP canister purge volume control solenoid valve (The valve is stuck open.)
• EVAP canister vent control valve
•EVAP canister
• Hoses (Hoses are connected incorrectly or clogged.)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1834 of 4801

NISSAN TEANA 2014 Service Manual
EC-834
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Diagnosis Procedure
INFOID:0000000009462684
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

EC-834
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Diagnosis Procedure
INFOID:0000000009462684
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check the voltage between EVAP canister purge vo lume control solenoid valve harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform the trouble diagnosis for power supply circuit.
2.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VA LVE OUTPUT SIGNAL CIRCUIT
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 3.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
3.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check that water is not inside connectors.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace EVAP control system pressure sensor. Refer to FL-18, "Removal and Installation"
.
4.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check EVAP control system pressure sensor. Refer to EC-849, "Component Inspection"
.
Is the inspection result normal?
YES-1 >> With CONSULT: GO TO 5.
YES-2 >> Without CONSULT: GO TO 6.
NO >> Replace EVAP control system pressure sensor. Refer to FL-18, "Removal and Installation"
.
5.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1. Turn ignition switch OFF.
2. Reconnect harness connectors disconnected.
3. Start engine.
4. Perform “PURG VOL C/V” in “ACTIVE TEST” m ode with CONSULT. Check that engine speed varies
according to the valve opening.
Does engine speed vary according to the valve opening?
YES >> GO TO 7.
EVAP canister purge volume control solenoid valve Ground Voltage
Connector Terminal
F32 1 Ground Battery voltage
EVAP canister purge volume con- trol solenoid valve ECM
Continuity
Connector Terminal Connector Terminal
F32 2 F78 42 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1835 of 4801

NISSAN TEANA 2014 Service Manual
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-835
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
NO >> GO TO 6.
6.CHECK EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID

P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-835
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
NO >> GO TO 6.
6.CHECK EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID VALVE
Check EVAP canister purge volume control solenoid valve. Refer to EC-835, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-548, "ENGINE CON-
TROL SYSTEM : Component Parts Location".
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
Check EVAP canister vent control valve. Refer to EC-841, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace EVAP canister vent control valve. Refer to FL-17, "Removal and Installation"
.
9.CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Remove EVAP canister with EVAP canister vent control valve and
EVAP control system pressure sensor attached. Refer to FL-14,
"Exploded View".
Does water drain from the EVAP canister?
YES >> GO TO 10.
NO >> Check intermittent incident. Refer to GI-43, "Intermittent
Incident".
10.CHECK EVAP CANISTER
Weigh the EVAP canister with the EV AP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.1 kg (4.6 lb).
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> GO TO 11.
11 .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-14, "Exploded View"
.
Component InspectionINFOID:0000000009462685
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect EVAP purge hoses connected to EVAP c anister purge volume control solenoid valve.
4. Turn ignition switch ON.
JMBIA1134GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1836 of 4801

NISSAN TEANA 2014 Service Manual
EC-836
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
5. Select “PURG VOL C/V” in
“ACTIVE TEST” mode with CONSULT.
6. Touch “Qd” and “Qu” o

Page 1837 of 4801

NISSAN TEANA 2014 Service Manual
P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-837
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P0444, P0445 EVAP CANISTER PU
RGE VOLUME CONTROL SOLENOID
VA

P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-837
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P0444, P0445 EVAP CANISTER PU
RGE VOLUME CONTROL SOLENOID
VA LV E
DTC LogicINFOID:0000000009462686
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always perform the following before conduct-
ing the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confi rm battery voltage is more than 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 13 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-837, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462687
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check the voltage between EVAP canister purge volume control solenoid valve harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform the trouble diagnosis for power supply circuit.
2.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VA LVE OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0444 EVAP canister purge volume
control solenoid valve circuit
open An excessively low voltage signal is sent
to ECM through the valve • Harness or connectors
(The solenoid valve circuit is open or
shorted.)
• EVAP canister purge volume control so- lenoid valve
P0445 EVAP canister purge volume
control solenoid valve circuit
shorted An excessively high voltage signal is sent
to ECM through the valve • Harness or connectors
(The solenoid valve circuit is shorted.)
• EVAP canister purge volume control so- lenoid valve
EVAP canister purge volume control
solenoid valve Ground Voltage
Connector Terminal
F32 1 Ground Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1838 of 4801

NISSAN TEANA 2014 Service Manual
EC-838
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0444, P0445 EVAP CANISTER P
URGE VOLUME CONTROL SOLENOID
VALVE
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP canister pur ge vo

EC-838
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0444, P0445 EVAP CANISTER P
URGE VOLUME CONTROL SOLENOID
VALVE
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-1 >> With CONSULT: GO TO 3.
YES-2 >> Without CONSULT: GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
3.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT
1. Reconnect all harness connectors disconnected.
2. Start engine.
3. Perform “PURG VOL C/V” in “ACTIVE TEST” m ode with CONSULT. Check that engine speed varies
according to the valve opening.
Does engine speed vary according to the valve opening?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> GO TO 4.
4.CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
Check EVAP canister purge volume control solenoid valve. Refer to EC-838, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-548, "ENGINE CON-
TROL SYSTEM : Component Parts Location".
Component InspectionINFOID:0000000009462688
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
4. Turn ignition switch ON.
5. Select “PURG VOL C/V” in “ACTIVE TEST” mode with CONSULT.
6. Touch “Qd” and “Qu” on CONSULT screen to adjust “PURG
VOL C/V” opening and check air passage continuity of EVAP
canister purge volume control solenoid valve under the following
conditions.
Without CONSULT
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
3. Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
EVAP canister purge volume con-
trol solenoid valve ECM
Continuity
Connector Terminal Connector Terminal
F32 2 F78 42 Existed
Condition
(PURG VOL C/V value) Air passage continuity
between (A) and (B)
100% Existed 0% Not existed
PBIB2058E
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1839 of 4801

NISSAN TEANA 2014 Service Manual
P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-839
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
4. Check air passage continuity of EVAP canister purge volum

Page 1840 of 4801

NISSAN TEANA 2014 Service Manual
EC-840
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0447 EVAP CANISTER VENT CONTROL VALVE
P0447 EVAP CANISTER VENT CONTROL VALVE
DTC LogicINFOID:0000000009462689
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE

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