Nissan Murano Z51. Manual - part 575

EC-308

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P0455 EVAP CONTROL SYSTEM

P0455 EVAP CONTROL SYSTEM

DTC Logic

INFOID:0000000005536698

DTC DETECTION LOGIC

This diagnosis detects a very large leakage (fuel filler cap fell off etc.) in EVAP system between the fuel tank
and EVAP canister purge volume control solenoid valve.

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 CONFIRMATION PROCEDURE

1.

PRECONDITIONING

CAUTION:

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0455

EVAP control system 
gross leakage detected

EVAP control system has a very large leakage 
such as fuel filler cap fell off, EVAP control sys-
tem does not operate properly.

• Fuel filler cap remains open or does not 

close.

• Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• Foreign matter caught in fuel filler cap.
• Leakage is in line between intake mani-

fold and EVAP canister purge volume 
control solenoid valve.

• Foreign matter caught in EVAP canister 

vent control valve.

• EVAP canister or fuel tank leakage
• EVAP purge line (pipe and rubber tube) 

leakage

• EVAP purge line rubber tube bent.
• Loose or disconnected rubber tube
• EVAP canister vent control valve and the 

circuit

• EVAP canister purge volume control so-

lenoid valve and the circuit

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

valve is missing or damaged.

• EVAP control system pressure sensor
• Refueling EVAP vapor cut valve
• ORVR system leakage

PBIB1026E

P0455 EVAP CONTROL SYSTEM

EC-309

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Never remove fuel filler cap during the DTC Confirmation Procedure.
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.

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

• Open engine hood before conducting the following procedures.

Will CONSULT-III be used?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT-III

1.

Tighten fuel filler cap securely until ratcheting sound is heard.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

4.

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

5.

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

°

C (32 - 158

°

F)

INT/A TEMP SE: 0 - 60

°

C (32 - 140

°

F)

6.

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-13, "BASIC INSPECTION : Special Repair Requirement"

.

Which is displayed on CONSULT-III screen?

OK

>> INSPECTION END

NG

>> GO TO 3.

3.

CHECK DTC

Check DTC.
Which DTC is detected?

P0455 >> Go to 

EC-310, "Diagnosis Procedure"

.

P0442 >> Go to 

EC-273, "Diagnosis Procedure"

.

4.

PERFORM DTC CONFIRMATION PROCEDURE

With GST

NOTE:
Be sure to read the explanation of DRIVING PATTERN in 

EC-501, "How to Set SRT Code"

 before driving

vehicle.
1.

Start engine.

2.

Drive vehicle according to DRIVING PATTERN.

3.

Stop vehicle.

4.

Turn ignition switch OFF and wait at least 10 seconds.

5.

Turn ignition switch ON.

6.

Turn ignition switch OFF and wait at least 10 seconds.

7.

Turn ignition switch ON.

8.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES-1 >> P0455: Go to 

EC-310, "Diagnosis Procedure"

.

YES-2 >> P0442: Go to 

EC-273, "Diagnosis Procedure"

.

YES-3 >> P0441: Go to 

EC-269, "Diagnosis Procedure"

.

NO

>> INSPECTION END

EC-310

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

P0455 EVAP CONTROL SYSTEM

Diagnosis Procedure

INFOID:0000000005536699

1.

CHECK FUEL FILLER CAP DESIGN

1.

Turn ignition switch OFF.

2.

Check for genuine NISSAN fuel filler cap design.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace with genuine NISSAN fuel filler cap.

2.

CHECK FUEL FILLER CAP INSTALLATION

Check that the cap is tightened properly by rotating the cap clockwise.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Retighten until

ratcheting sound is heard.

3.

CHECK FUEL FILLER CAP FUNCTION

Check for air releasing sound while opening the fuel filler cap.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK FUEL TANK VACUUM RELIEF VALVE

Refer to 

EC-312, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace fuel filler cap with a genuine one.

5.

CHECK EVAP PURGE LINE

Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connection or
disconnection.
Refer to 

EC-77, "System Diagram"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or reconnect the hose.

6.

CLEAN EVAP PURGE LINE

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

>> GO TO 7.

7.

CHECK EVAP CANISTER VENT CONTROL VALVE

Check the following.
• EVAP canister vent control valve is installed properly.

Refer to 

EC-534, "Removal and Installation"

.

• EVAP canister vent control valve.

Refer to 

EC-288, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace EVAP canister vent control valve and O-ring.

SEF915U

P0455 EVAP CONTROL SYSTEM

EC-311

< DTC/CIRCUIT DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

8.

CHECK FOR EVAP LEAKAGE

Refer to 

EC-532, "Inspection"

.

Is there any leakage in EVAP line?

YES

>> Repair or replace.

NO-1

>> With CONSULT-III: GO TO 9.

NO-2

>> Without CONSULT-III: GO TO 10.

9.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

With CONSULT-III

1.

Disconnect vacuum hose from EVAP canister purge volume control solenoid valve at EVAP service port.

2.

Start engine.

3.

Perform “PURG VOL C/V” in “ACTIVE TEST” mode.

4.

Touch “Qu” on CONSULT-III screen to increase “PURG VOL C/V” opening to 100%.

5.

Check vacuum hose for vacuum.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> GO TO 11.

10.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

Without CONSULT-III

1.

Start engine and warm it up to normal operating temperature.

2.

Stop engine.

3.

Disconnect vacuum hose from EVAP canister purge volume control solenoid valve at EVAP service port.

4.

Start engine and let it idle for at least 80 seconds.

5.

Check vacuum hose for vacuum when revving engine up to 2,000 rpm.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> GO TO 11.

11.

CHECK VACUUM HOSE

Check vacuum hoses for clogging or disconnection. Refer to 

EC-77, "System Diagram"

.

Is the inspection result normal?

YES-1 >> With CONSULT-III: GO TO 12.
YES-2 >> Without CONSULT-III: GO TO 13.
NO

>> Repair or reconnect the hose.

12.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

With CONSULT-III

1.

Start engine.

2.

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

Does engine speed vary according to the valve opening?

YES

>> GO TO 14.

NO

>> GO TO 13.

13.

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Refer to 

EC-282, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> Replace EVAP canister purge volume control solenoid valve.

14.

CHECK FUEL TANK TEMPERATURE SENSOR

Vacuum should exist.

Vacuum should exist.