Nissan Sentra. Instruction — part 401

EC-300

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID

VALVE

Component Inspection (EVAP Canister Purge Volume Control Solenoid Valve)

INFOID:0000000009758541

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 CONT/V” in “ACTIVE TEST” mode of “ENGINE” using 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 as per the follow-

ing 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.

4. Check air passage continuity of EVAP canister purge volume control solenoid valve as per the following

conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace EVAP canister purge volume control solenoid valve. Refer to

EM-27, "Exploded View"

.

Condition

(PURG VOL C/V value)

Air passage continuity

between (A) and (B)

100%

Existed

0%

Not existed

PBIB0149E

Condition

Air passage continuity

between (A) and (B)

12 V direct current supply between
terminals 1 and 2

Existed

No supply

Not existed

P0447 EVAP CANISTER VENT CONTROL VALVE

EC-301

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P0447 EVAP CANISTER VENT CONTROL VALVE

DTC Logic

INFOID:0000000009758542

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:

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

EC-301, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009758543

1.

INSPECTION START

Do you have CONSULT?
Do you have CONSULT?

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 turn ON.

2. Select “VENT CONTROL/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.

3. Touch “ON/OFF” on CONSULT 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 CONTROL VALVE POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect EVAP canister vent control valve harness connector.

3. Turn ignition switch ON.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0447

VENT CONTROL VALVE
(Evaporative emission system vent
control circuit open)

An improper voltage signal is sent to
ECM through EVAP canister vent control
valve.

• Harness or connectors

(EVAP canister vent control valve
circuit is open or shorted.)

• EVAP canister vent control valve

Clicking sound should be heard.

EC-302

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0447 EVAP CANISTER VENT CONTROL VALVE

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.

CHECK EVAP CANISTER VENT CONTROL VALVE POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check the continuity between EVAP canister vent control valve harness connector and IPDM E/R harness

connector.

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.

5.

CHECK EVAP CANISTER VENT CONTROL VALVE OUTPUT SIGNAL CIRCUIT

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 power.
Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

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 7.

NO

>> Clean the rubber tube using an air blower.

7.

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

>> Check intermittent incident. Refer to

GI-39, "Intermittent Incident"

.

+

−

Voltage

EVAP canister vent control valve

Connector

Terminal

B17

1

Ground

Battery voltage

+

−

Continuity

EVAP canister vent control

valve

IPDM E/R

Connector

Terminal

Connector

Terminal

B17

1

E45

26

Existed

+

−

Continuity

EVAP canister vent control

valve

ECM

Connector

Terminal

Connector

Terminal

B17

2

E16

97

Existed

P0447 EVAP CANISTER VENT CONTROL VALVE

EC-303

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

NO

>> Replace EVAP canister vent control valve. Refer to

FL-15, "Removal and Installation"

Component Inspection

INFOID:0000000009758544

1.

CHECK EVAP CANISTER VENT CONTROL VALVE-1

1. Turn ignition switch OFF.

2. Remove EVAP canister vent control valve from EVAP canister.
3. Check portion of EVAP canister vent control valve for being

rusted.

Is it rusted?

YES

>> Replace EVAP canister vent control valve. Refer to

FL-

15, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK EVAP CANISTER VENT CONTROL VALVE-2

With CONSULT

1. Reconnect harness connectors disconnected.

2. Turn ignition switch ON.

3. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.

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

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, "Removal and Installation"

.

3.

CHECK EVAP CANISTER VENT CONTROL VALVE-3

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 of “ENGINE” using CONSULT.

JMBIA0168ZZ

Condition

(VENT CONT/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