Nissan Juke F15. Manual — part 543
P0447 EVAP CANISTER VENT CONTROL VALVE
EC-985
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
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P0447 EVAP CANISTER VENT CONTROL VALVE
DTC Logic
INFOID:0000000012198479
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, 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, confirm battery voltage is more than 11 V at idle.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and wait at least 8 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198480
1.
INSPECTION START
Will CONSULT be used?
Will CONSULT be used?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK EVAP CANISTER VENT CONTROL VALVE CIRCUIT
With CONSULT
1. Turn ignition switch OFF and then ON.
2. Select “VENT CONTROL/V” in “ACTIVE TEST” mode with CONSULT.
3. Touch “ON/OFF” on CONSULT screen.
4. Check for operating sound of the valve.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 3.
3.
CHECK EVAP CANISTER VENT CONTROL VALVE POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect EVAP canister vent control valve harness connector.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0447
VENT CONTROL VALVE
(Evaporative emission sys-
tem vent control circuit open)
An improper voltage signal is sent to ECM
through EVAP canister vent control valve.
• Harness or connectors
(The valve circuit is open or shorted.)
• EVAP canister vent control valve
• Hoses
(Hoses are connected incorrectly or
clogged.)
Clicking sound should be heard.
EC-986
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P0447 EVAP CANISTER VENT CONTROL VALVE
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 4.
NO
>> Perform the trouble diagnosis for power supply circuit.
4.
CHECK EVAP CANISTER VENT CONTROL VALVE OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between ECM harness connector and EVAP canister vent control valve harness con-
nector.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
5.
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 6.
NO
>> Clean the rubber tube using an air blower.
6.
CHECK EVAP CANISTER VENT CONTROL VALVE
Check EVAP canister vent control valve. Refer to
EC-986, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-45, "Intermittent Incident"
.
NO
>> Replace EVAP canister vent control valve. Refer to
FL-27, "2WD : Removal and Installation"
(2WD models),
FL-30, "AWD : Removal and Installation"
(AWD models).
Component Inspection
INFOID:0000000012198481
1.
CHECK EVAP CANISTER VENT CONTROL VALVE-I
1. Remove EVAP canister vent control valve from EVAP canister. Refer to
FL-30, "AWD : Removal and Installation"
(AWD).
2. Check portion of EVAP canister vent control valve for rust.
Is it rusted?
YES
>> Replace EVAP canister vent control valve. Refer to
27, "2WD : Removal and Installation"
"AWD : Removal and Installation"
(AWD).
NO
>> GO TO 2.
EVAP canister vent control valve
Ground
Voltage
Connector
Terminal
B21
1
Ground
Battery voltage
EVAP canister vent control valve
ECM
Continuity
Connector
Terminal
Connector
Terminal
B21
2
E19
141
Existed
JMBIA0168ZZ
P0447 EVAP CANISTER VENT CONTROL VALVE
EC-987
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
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EC
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2.
CHECK EVAP CANISTER VENT CONTROL VALVE-II
With CONSULT
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.
Check that new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT
1. Disconnect EVAP canister vent control valve harness connector.
2. Check air passage continuity and operation delay time under the
following conditions.
Check that new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 3.
3.
CHECK EVAP CANISTER VENT CONTROL VALVE-III
With CONSULT
1. Clean the air passage [portion to ] 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.
Check that new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT
1. Clean the air passage [portion to ] of EVAP canister vent
control valve using an air blower.
2. Check air passage continuity and operation delay time under the following conditions.
Check that new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal?
YES
>> INSPECTION END
Condition VENT CONTROL/V
Air passage continuity between
and
ON
Not existed
OFF
Existed
Condition
Air passage continuity between
and
12 V direct current supply between
terminals 1 and 2
Not existed
OFF
Existed
JMBIA0169ZZ
Condition VENT CONTROL/V
Air passage continuity between
and
ON
No
OFF
Yes
Condition
Air passage continuity between
and
12 V direct current supply between
terminals (1) and (2)
No
OFF
Yes
JMBIA0169ZZ
EC-988
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P0447 EVAP CANISTER VENT CONTROL VALVE
NO
>> Replace EVAP canister vent control valve. Refer to
FL-27, "2WD : Removal and Installa-
FL-30, "AWD : Removal and Installation"
(AWD).
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