Nissan Sentra. Manual — part 399
EC-292
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
P0441 EVAP CONTROL SYSTEM
7.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Check the EVAP canister purge volume control solenoid valve. Refer to
EC-296, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace EVAP canister purge volume control solenoid valve. Refer to
8.
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 9.
NO
>> Replace EVAP control system pressure sensor. Refer to
FL-15, "Removal and Installation"
.
9.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR FUNCTION
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace EVAP control system pressure sensor. Refer to
FL-15, "Removal and Installation"
.
10.
CHECK RUBBER TUBE FOR CLOGGING
1. Disconnect rubber tube connected to EVAP canister vent control valve.
2. Check the rubber tube for clogging.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Clean the rubber tube using an air blower.
11.
CHECK EVAP CANISTER VENT CONTROL VALVE
Check the EVAP canister vent control valve. Refer to
EC-303, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> Replace EVAP canister vent control valve. Refer to
FL-15, "Removal and Installation"
.
12.
CHECK EVAP PURGE LINE
Inspect EVAP purge line (pipe and rubber tube). Check for evidence of leaks.
.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> Repair or replace malfunctioning part.
13.
CLEAN EVAP PURGE LINE
Clean EVAP purge line (pipe and rubber tube) using air blower.
>> GO TO 14.
14.
CHECK INTERMITTENT INCIDENT
Perform
GI-39, "Intermittent Incident"
.
>> INSPECTION END
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-293
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
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P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
DTC Logic
INFOID:0000000009758536
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:
• Perform DTC CONFIRMATION PROCEDURE when the fuel is between 1/4 and 3/4 full, and vehicle is
placed on flat level surface.
• Always perform test at a temperature of 5 to 60
°C (41 to 140°F).
• Cool the vehicle so that engine coolant temperature becomes same level as ambient temperature.
Do you have CONSULT
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
PERFORM DTC CONFIRMATION PROCEDURE A
With CONSULT
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
3. Check that the following condition are met.
FUEL T/TMP SE: 0 - 35
°C (32 - 95°F)
4. Start engine and wait at least 60 seconds.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE B
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. Select “PURG VOL CN/V P1444” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode of
“ENGINE” using CONSULT.
5. Touch “START”.
6. Start engine and let it idle until “TESTING” on CONSULT changes to “COMPLETED”. (It will take approxi-
mately 10 seconds.)
If “TESTING” is not displayed after 5 minutes, retry from step 2.
7. Touch “SELF-DIAG RESULT”.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0443
PURG VOLUME CONT/V
(Evaporative emission system
purge control valve circuit)
A
The canister purge flow is detected during
the vehicle is stopped while the engine is
running, even when EVAP canister purge
volume control solenoid valve is com-
pletely 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.)
B
The canister purge flow is detected during
the specified driving conditions, even
when EVAP canister purge volume control
solenoid valve is completely closed.
EC-294
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Which is displayed on CONSULT?
OK
>> INSPECTION END
NG
>> Proceed to
.
4.
PERFORM DTC CONFIRMATION PROCEDURE A
With GST
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
3. Start engine and wait at least 60 seconds.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> GO TO 5.
5.
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. Start engine and let it idle for at least 20 seconds.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009758537
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 3.
NO
>> GO TO 2.
2.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and
IPDM E/R harness connector.
+
−
Voltage
ECM
Connector
Terminal
E16
125
Ground
3.1 - 4.0 V
+
−
Voltage
EVAP canister purge volume
control solenoid valve
Connector
Terminal
F13
1
Ground
Battery voltage
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-295
< DTC/CIRCUIT DIAGNOSIS >
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4. Also check harness for short to ground.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit.
NO
>> Repair or replace error-detected parts.
3.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and
ECM harness connector.
4. Also check harness for short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
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. Refer to
FL-15, "Removal and Installation"
.
5.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check the EVAP control system pressure sensor. Refer to
EC-296, "Component Inspection"
Is the inspection result normal?
YES-1 >> With CONSULT: GO TO 6.
YES-2 >> Without CONSULT: GO TO 7.
NO
>> Replace EVAP control system pressure sensor. Refer to
FL-15, "Removal and Installation"
.
6.
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 CONT/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT. Check that
engine speed varies according to the valve opening.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
+
−
Continuity
EVAP canister purge volume
control solenoid valve
IPDM E/R
Connector
Terminal
Connector
Terminal
F13
1
E45
25
Existed
+
−
Continuity
EVAP canister purge volume
control solenoid valve
ECM
Connector
Terminal
Connector
Terminal
F13
2
F24
17
Existed
Water should not exist.
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