Nissan Sentra B18 (2020-2025) Service Manual: P0443 Evap Canister Purge Volume Control Solenoid Valve

Nissan Sentra B18 (2020-2025) Service Manual / Engine / Work Procedure (After Replacing Electric Throttle Control Actuator) / Dtc/circuit Diagnosis / P0443 Evap Canister Purge Volume Control Solenoid Valve

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0443	PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit)	A	Diagnosis condition	—
			Signal (terminal)	—
			Threshold	The canister purge flow is detected during the Nissan Sentra vehicle is stopped while the engine is running, even when EVAP canister purge volume control solenoid valve is completely closed
			Diagnosis delay time	—
		B	Diagnosis condition	—
			Signal (terminal)	—
			Threshold	The canister purge flow is detected during the specified driving conditions, even when EVAP canister purge volume control solenoid valve is completely closed
			Diagnosis delay time	—

POSSIBLE CAUSE

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.)

FAIL-SAFE

Not applicable

Confirmation Procedure

Confirmation Procedure

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:
- Perform DTC CONFIRMATION PROCEDURE when the fuel is between 1/4 and 3/4 full, and Nissan Sentra vehicle is placed on flat level surface.
- Always perform test at a temperature of 5 to 60°C (41 to 140°F).
- Cool the Nissan Sentra vehicle so that engine coolant temperature becomes same level as ambient temperature.
Do you have CONSULT
YES >>
GO TO 2.
NO >>
GO TO 4.
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 the engine and wait at least 60 seconds.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >>
Proceed to DTC Diagnosis Procedure.
NO >>
GO TO 3.
PERFORM DTC CONFIRMATION PROCEDURE B

With CONSULT
1. Start the 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 the engine and let it idle until “TESTING” on CONSULT changes to “COMPLETED”. (It will take approximately 10 seconds.)
  
  If “TESTING” is not displayed after 5 minutes, retry from step 2.
7. Touch “SELF-DIAG RESULT”.
Is “OK” displayed on CONSULT screen?
YES-1 >>
To check malfunction symptom before repair: Refer to Intermittent Incident.
YES-2 >>
Confirmation after repair: INSPECTION END
NO >>
Proceed to DTC Diagnosis Procedure.

PERFORM DTC CONFIRMATION PROCEDURE A

With GST

Turn ignition switch ON.

Check the voltage between ECM harness connector and ground.

+		−	Voltage
ECM
Connector	Terminal
E16	138	Ground	3.1 – 4.0 V

Start the engine and wait at least 60 seconds.
Check 1st trip DTC.

Is 1st trip DTC detected?

YES >>

Proceed to DTC Diagnosis Procedure.

NO >>

GO TO 5.

PERFORM DTC CONFIRMATION PROCEDURE

With GST
1. Start the engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start the engine and let it idle for at least 20 seconds.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >>
Proceed to DTC Diagnosis Procedure.
NO-1 >>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2 >>
Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY

Turn ignition switch OFF.
Disconnect EVAP canister purge volume control solenoid valve harness connector.
Turn ignition switch ON.

Check the voltage between EVAP canister purge volume control solenoid valve harness connector and ground.

+		−	Voltage
EVAP canister purge volume control solenoid valve
Connector	Terminal
F13	1	Ground	Battery voltage

Is the inspection result normal?

YES >>

GO TO 3.

NO >>

GO TO 2.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect IPDM E/R harness connector.

Check the continuity between EVAP canister purge volume control solenoid valve harness connector and IPDM E/R harness connector.

EVAP canister purge volume control solenoid valve		IPDM E/R		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F13	1	F96	73	Existed

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 malfunctioning part.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between EVAP canister purge volume control solenoid valve harness connector and ECM harness connector.

EVAP canister purge volume control solenoid valve		ECM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F13	2	F25	122	Existed

Also check harness for short to power.

Is the inspection result normal?

YES >>

GO TO 4.

NO >>

Repair or replace malfunctioning part.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR

Disconnect EVAP control system pressure sensor harness connector.

Check connectors for water.

Water should not exist.

Is the inspection result normal?

YES >>

GO TO 5.

NO >>

Replace EVAP control system pressure sensor. Refer to Exploded View.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Check the EVAP control system pressure sensor. Refer to 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 Exploded View.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

With CONSULT
1. Turn ignition switch OFF.
2. Reconnect harness connectors disconnected.
3. Start the 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.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Check the EVAP canister purge volume control solenoid valve. Refer to Component Inspection.

Is the inspection result normal?
YES >>
GO TO 8.
NO >>
Replace EVAP canister purge volume control solenoid valve. Refer to Exploded View.
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.
CHECK EVAP CANISTER VENT CONTROL VALVE

Check the EVAP canister vent control valve. Refer to Component Inspection.

Is the inspection result normal?
YES >>
GO TO 10.
NO >>
Replace EVAP canister vent control valve. Refer to Exploded View.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached.
2. Check if water will drain from EVAP canister.
Does water drain from the EVAP canister?
YES >>
GO TO 11.
NO >>
INSPECTION END
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 >>
INSPECTION END
NO >>
GO TO 12.
DETECT MALFUNCTIONING PART

Check the following.
- EVAP canister for damage
- EVAP hose between EVAP canister and Nissan Sentra vehicle frame for clogging or poor connection
>>
Repair hose or replace EVAP canister. Refer to Removal and Installation.

P0441 Evap Control System

Dtc Description DTC Description In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions. Purge volume is related to air intake volume. ...

P0444 Evap Canister Purge Volume Control Solenoid Valve

Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble ...

Other materials:

Engine cooling system
The engine cooling system is filled at the factory with a pre-diluted mixture of 50% Genuine NISSAN Long Life Antifreeze/Coolant (blue) and 50% water to provide year-round anti-freeze and coolant protection. The antifreeze solution contains rust and corrosion inhibitors. Additional engine cool ...

P2b95 Cold Start Control
Dtc Description DTC Description ECM controls fuel injection timing and fuel injection quantity when engine is started with the engine cold. This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions. DTC DETECTION LOGIC ...

Child safety rear door lock
Child safety locks help prevent the rear doors from being opened accidentally, especially when small children are in the vehicle. The child safety lock levers are located on the edge of the rear doors. When the lever is in the unlock position 2 , the door can be opened from the outside ...