Nissan Frontier D40. Manual - part 498

P0441 EVAP CONTROL SYSTEM

EC-683

< COMPONENT DIAGNOSIS >

[VQ40DE]

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1.

Disconnect purge hoses connected to EVAP service port (A)
and EVAP canister purge volume control solenoid valve (B).

2.

Blow air into each hose and EVAP purge port (C).

3.

Check that air flows freely.

OK or NG

OK (With CONSULT-III)>>GO TO 6.
OK (Without CONSULT-III)>>GO TO 7.
NG

>> Repair or clean hoses and/or purge port.

6.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

 With CONSULT-III

1.

Start engine.

2.

Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III. Check that engine speed var-
ies according to the valve opening.

OK or NG

OK

>> GO TO 8.

NG

>> GO TO 7.

7.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Refer to 

EC-699, "Component Inspection"

.

OK or NG

OK

>> GO TO 8.

NG

>> Replace EVAP canister purge volume control solenoid valve.

8.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR

1.

Disconnect EVAP control system pressure sensor harness connector.

2.

Check connectors for water.

OK or NG

OK

>> GO TO 9.

NG

>> Replace EVAP control system pressure sensor.

9.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR FUNCTION

Refer to 

EC-712, "DTC Confirmation Procedure"

 for DTC P0452, 

EC-716, "DTC Confirmation Procedure"

 for

P0453.
OK or NG

OK

>> GO TO 10.

NG

>> Replace EVAP control system pressure sensor.

10.

CHECK RUBBER TUBE FOR CLOGGING

1.

Disconnect rubber tube connected to EVAP canister vent control valve.

SEF367U

SEF368U

Water should not exist.

EC-684

< COMPONENT DIAGNOSIS >

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P0441 EVAP CONTROL SYSTEM

2.

Check the rubber tube for clogging.

OK or NG

OK

>> GO TO 11.

NG

>> Clean the rubber tube using an air blower.

11.

CHECK DRAIN FILTER

Refer to 

EC-684, "Component Inspection"

.

OK or NG

OK

>> GO TO 10.

NG

>> Replace drain filter.

12.

CHECK EVAP CANISTER VENT CONTROL VALVE

Refer to 

EC-702, "Component Inspection"

.

OK or NG

OK

>> GO TO 13.

NG

>> Replace EVAP canister vent control valve.

13.

CHECK EVAP PURGE LINE

Inspect EVAP purge line (pipe and rubber tube). Check for evidence of leaks.
Refer to 

EC-493, "Description"

.

OK or NG

OK

>> GO TO 14.

NG

>> Replace it.

14.

CLEAN EVAP PURGE LINE

Clean EVAP purge line (pipe and rubber tube) using air blower.

>> GO TO 15.

15.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-46, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005273653

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.

4.

Blow air into port A and check that it flows freely out of port B.

5.

Block port B.

6.

Blow air into port A and check that there is no leakage.

7.

If NG, replace drain filter.

PBIB3641E

P0442 EVAP CONTROL SYSTEM

EC-685

< COMPONENT DIAGNOSIS >

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P0442 EVAP CONTROL SYSTEM

On Board Diagnosis Logic

INFOID:0000000005273654

This diagnosis detects leaks in the EVAP purge line using engine intake manifold vacuum.
If pressure does not increase, the ECM will check for leaks in the line between the fuel tank and EVAP canister
purge volume control solenoid valve, under the following Vacuum test conditions.
The EVAP canister vent control valve is closed to shut the EVAP purge line off. The EVAP canister purge vol-
ume control solenoid valve will then be opened to depressurize the EVAP purge line using intake manifold
vacuum. After this occurs, the EVAP canister purge volume control solenoid valve will be closed.

CAUTION:

• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the

MIL may illuminate.

• If the fuel filler cap is not tightened properly, the MIL may illuminate.
• Use only a genuine NISSAN rubber tube as a replacement.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0442
0442

EVAP control system 
small leak detected 
(negative pressure)

EVAP control system has a leak, EVAP 
control system does not operate prop-
erly.

• Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• Fuel filler cap remains open or fails to close.
• Foreign matter caught in fuel filler cap.
• Leak is in line between intake manifold and EVAP 

canister purge volume control solenoid valve.

• Foreign matter caught in EVAP canister vent con-

trol valve.

• EVAP canister or fuel tank leaks
• EVAP purge line (pipe and rubber tube) leaks
• EVAP purge line rubber tube bent
• Loose or disconnected rubber tube
• EVAP canister vent control valve and the circuit
• EVAP canister purge volume control solenoid 

valve and the circuit

• Fuel tank temperature sensor
• O-ring of EVAP canister vent control valve is 

missing or damaged

• Drain filter
• EVAP canister is saturated with water
• EVAP control system pressure sensor
• Fuel level sensor and the circuit
• Refueling EVAP vapor cut valve
• ORVR system leaks

PBIB3640E

EC-686

< COMPONENT DIAGNOSIS >

[VQ40DE]

P0442 EVAP CONTROL SYSTEM

DTC Confirmation Procedure

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NOTE:
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next step.
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 WORK SUPPORT” when the fuel level is between 1/4 and 3/4 full, and vehicle is placed

on flat level surface.

• Always perform test at a temperature of 0 to 30

°

C (32 to 86

°

F).

 WITH CONSULT-III

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.

4.

Check that the following conditions are met.
COOLAN TEMP/S: 0 - 70

°

C (32 - 158

°

F)

INT/A TEMP SE: 0 - 30

°

C (32 - 86

°

F)

5.

Select “EVP SML LEAK P0442/P1442” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode
with CONSULT-III.
Follow the instructions displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT-III screen, go to

EC-468, "Basic Inspection"

.

6.

Check that “OK” is displayed.
If “NG” is displayed, refer to 

EC-686, "Diagnosis Procedure"

.

NOTE:
Check that EVAP hoses are connected to EVAP canister purge volume control solenoid valve
properly.

 WITH GST

NOTE:
Be sure to read the explanation of Driving Pattern ON 

EC-501

  before driving vehicle.

1.

Start engine.

2.

Drive vehicle according to Driving Pattern, 

EC-501

.

3.

Stop vehicle.

4.

Turn ignition switch OFF, wait at least 10 seconds.

5.

Turn ignition switch ON.

6.

Turn ignition switch OFF, wait at least 10 seconds and then turn ON.

7.

Select Service $07 with GST.

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If P0442 is displayed on the screen, go to 

EC-686, "Diagnosis Procedure"

.

-

If P0441 is displayed on the screen, go to 

EC-681, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005273656

1.

CHECK FUEL FILLER CAP DESIGN

1.

Turn ignition switch OFF.

2.

Check for genuine NISSAN fuel filler cap design.

OK or NG

OK

>> GO TO 2.

NG

>> Replace with genuine NISSAN fuel filler cap.

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