Nissan Maxima. Manual - part 460

EC-324

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

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 with

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”.
Which is displayed on CONSULT?

OK

>> INSPECTION END

NG

>> Go to 

EC-324, "Diagnosis Procedure"

.

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

>> Go to 

EC-324, "Diagnosis Procedure"

.

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

>> Go to 

EC-324, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010095010

Regarding Wiring Diagram information, refer to 

EC-554, "Wiring Diagram"

.

1.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect EVAP canister purge volume control solenoid valve harness connector.

3. Turn ignition switch ON.

ECM

Ground

Voltage (V)

Connector

Terminal

E10

95

(Fuel tank temperature sensor signal)

Ground

3.1 - 4.0

P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

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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.

DETECT MALFUNCTIONING PART

Check the following.

• Harness connectors E11, F2

• Junction block connectors E44, E45

• Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R

• Harness for open or short between EVAP canister purge volume control solenoid valve and ECM

>> Repair open circuit, short to ground or short to power in harness or connectors.

3.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT

FOR OPEN AND SHORT

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 ground and short to power.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

4.

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 5.

NO

>> Replace EVAP control system pressure sensor. Refer to 

FL-17, "Removal and Installation"

.

5.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Refer to 

EC-346, "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-17, "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.

EVAP canister purge volume control 

solenoid valve

Ground

Voltage

Connector

Terminal

F29

1

Ground

Battery voltage

PBIB0080E

EVAP canister purge volume con-

trol solenoid valve

ECM

Continuity

Connector

Terminal

Connector

Terminal

F29

2

F14

25

Existed

EC-326

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

4. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT. Check that engine speed varies

according to the valve opening.

Does engine speed vary according to the valve opening?

YES

>> GO TO 8.

NO

>> GO TO 7.

7.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Refer to 

EC-327, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace EVAP canister purge volume control solenoid valve.

8.

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 9.

NO

>> Clean the rubber tube using an air blower.

9.

CHECK DRAIN FILTER

Refer to 

EC-327, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Replace drain filter.

10.

CHECK EVAP CANISTER VENT CONTROL VALVE

Refer to 

EC-335, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Replace EVAP canister vent control valve. Refer to 

FL-16, "Removal and Installation"

.

11.

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,

"Removal and Installation (EVAP Canister)"

.

Does water drain from the EVAP canister?

YES

>> GO TO 12.

NO

>> GO TO 14.

12.

CHECK EVAP CANISTER

Weigh the EVAP canister with the EVAP 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

>> GO TO 14.

NO

>> GO TO 13.

13.

DETECT MALFUNCTIONING PART

Check the following.

• EVAP canister for damage

• EVAP hose between EVAP canister and drain filter for clogging or poor connection

PBIB1213E

P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

EC-327

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

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>> Repair hose or replace EVAP canister.  Refer to 

FL-14, "Removal and Installation (EVAP Canis-

ter)"

.

14.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000010095011

EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

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 with CONSULT.

6. Touch “Qd” and “Qu” on CONSULT screen to adjust “PURG

VOL CONT/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.

4. Check air passage continuity of EVAP canister purge volume

control solenoid valve under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace EVAP canister purge volume control solenoid

valve

DRAIN FILTER

1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.

Condition

(PURG VOL CONT/V value)

Air passage continuity 

between (A) and (B)

100%

Existed

0%

Not existed

PBIB2058E

Condition

Air passage continuity 

between (A) and (B)

12 V direct current supply between 
terminals 1 and 2

Existed

No supply

Not existed

PBIB2059E