Classification:

Reference:

EC16-034

Date:

NTB17-082

July 21, 2017

NISSAN; DTC P0456 CAUSED BY EVAP
LEAK AT VENT CONTROL VALVE O-RING
APPLIED
VEHICLES: 2009-2017 370Z Coupe (Z34)
2014-2017 Versa NOTE (E12)
2010-2017 370Z Roadster (Z34) 2011-2017 Quest (E52)
2007-2012 Altima Sedan (L32)
2004-2015 Titan (A60)
2008-2013 Altima Coupe (L32)
2016-2017 Titan and Titan XD (A61)
2009-2014 Maxima (A35)
2013-2017 NV200 (M20)
2016-2017 Maxima (A36)
2014-2017 Taxi
2012-2017 NV 1500/2500/3500/Passenger (F80)

IF YOU CONFIRM
The MIL is ON in an APPLIED VEHICLE with DTC P0456 (EVAP VERY SML LEAK)
AND


DTC P0456 is not caused by a loose fuel fill cap (refer to NTB13-097).



An EVAP leak has been detected where the vent control valve mounts to the
canister.



The vent control valve O-ring seal is determined to be the cause.

ACTION
1. DO NOT REPLACE the vent control valve.
2. Replace the vent control valve O-ring seal (O-ring).


Refer to SERVICE PROCEDURE on page 2.

IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you
will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it
contains information that is essential to successfully completing this repair.
Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are
properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job
properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO
NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.
1/4

SERVICE PROCEDURE

1. Replace the O-ring.


To access the O-ring, refer to the appropriate section in the Electronic Service
Manual (ESM) of the APPLIED VEHICLE for vent control valve removal and
installation.



This O-ring is now available separately (see PARTS INFORMATION).



When installing, do not add any lubrication to the O-ring.



Seat the O-ring all the way down as shown on page 4, Figure 7.
 Having the O-ring seated all the way down will assure it is not twisted or rolled
over.



Refer to the pictures on pages 3 and 4 for additional installation information.

CAUTION:
 Make sure the surfaces that the O-ring comes in contact with are clean.
 When installed, make sure the O-ring is not twisted or rolled over.


Verify the repair is complete by checking for leaks with a “smoke” leak detection
machine or CONSULT-III plus (C-III plus).
 If a “smoke” leak detection machine is used, follow the manufacturer’s operating
instructions.
 If C-III plus is used:
1. Confirm the fuel filler cap is secure.
2. Connect Essential Tool J-42909 to the EVAP service port.
3. Using Active Test, close the vent control valve.
4. Apply pressure using J-42909 until the bar graph reaches about halfway.
5. Monitor the bar graph for 10 minutes.

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NTB17-082

NG: Dirty O-ring surface

Vent control valve

Figure 1

Figure 2

OK: Clean O-ring surface

Make sure all edges
are not broken
Figure 3

Figure 4

Where vent control valve
mounts in canister

This surface must
be clean all around
Canister

Make sure all edges
are not broken
Figure 5

Figure 6

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NTB17-082

When fully seated
(no gaps), O-ring
is not twisted or
rolled over

O-ring

No gap all
around

Figure 7

PARTS INFORMATION
DESCRIPTION

P/N

QUANTITY

SEAL O-RING

16618-JF00A

1

CLAIMS INFORMATION
Submit a Primary Part (PP) line claim using the following claims coding:
DESCRIPTION

MODEL

Replace Vent
Control Valve
O-Ring

Quest (E52)
Maxima (A36)
Titan (A60)
Titan and
Titan XD (A61)
Versa NOTE
NV 1500/2500/
3500/Passenger
NV200 and Taxi
Altima Sedan and
Coupe (L32)
Maxima (A35)
370Z Coupe
and Roadster (Z34)

PFP

OP CODE

SYM

DIA

FRT
0.3

0.4
16618-JF00A

FX57AA

HD

32

0.5

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NTB17-082