Classification:

Reference:

EC15-015b

Date:

NTB15-075b

July 27, 2020

2006-2015 TITAN; MIL ON WITH DTC P0448
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLES: 2006 - 2015 Titan (A60)

IF YOU CONFIRM
The MIL is ON with DTC P0448 (EVAP canister vent control valve close) stored in the
ECM.

ACTION
1. Replace the EVAP canister (canister).
2. Remove the canister filter.
3. Replace the fuel filler pipe and canister drain hose listed in PARTS INFORMATION.
4. Erase the DTC.

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 (starting
on page 2) 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.

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SERVICE PROCEDURE
IMPORTANT: Follow all warnings, cautions, and notes in the ESM when working on
or near a fuel system and EVAP system components, such as a fuel tank and vent
control valve.
1. Remove the following parts from the vehicle:


Fuel filler pipe



EVAP Canister with vent control valve and EVAP control system pressure sensor
(pressure sensor)
NOTE: The vent control valve and pressure sensor will be reused later in the
procedure.



EVAP Canister drain hose(s) and filter (if equipped) that connect to the vent control
valve (Figure 1)
 If needed, refer to the Electronic Service Manual (ESM), sections EC-Engine
Control System and FL-Fuel System (as it applies), for removal procedure.
NOTE:
o Remove the fuel filler pipe and fuel filler pipe grommet (grommet) together.
This makes it easier to remove the fuel filler pipe from the vehicle.
o Cover the fuel tank’s rubber filler hose with a clean shop rag or suitable
covering, once the fuel filler pipe has been detached from it.
o The new canister drain hose (drain hose) replaces the drain hose(s) and filter
(if equipped) that connect to the vent control valve (Figure 1). The existing
drain hose(s) and filter will not be reinstalled.

Remove these and do not reuse/reinstall

EVAP Canister
drain hose

EVAP Canister
drain hose
EVAP Canister
filter
Figure 1

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NTB15-075b

2. Install the new fuel filler pipe from PARTS INFORMATION.


Before installing: Cover the fuel filler pipe opening (grommet end) with a clean
shop rag or other suitable covering.



Refer to the ESM, section FL-Fuel System, for installation procedure.



Make sure the grommet is positioned as shown in Figure 2.
NOTE: It is recommended to install the grommet to the body, and then the fuel filler
pipe to the grommet.
Notch at 12 o’clock
position

Grommet

Hole at 6 o’clock
position
Figure 2

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NTB15-075b

3. Match the blue paint marks of the two new drain hoses (Figure 3) and then connect
them.
NOTE: The EVAP canister drain hose comes in two parts:


Part 1 is already installed to the new fuel filler pipe assembly (TUBE ASSYFILLER).



Part 2 (HOSE-DRAIN, CANISTER) connects to the end of part 1 and is routed to
the EVAP canister.

Blue paint marks

New fuel filler pipe assembly
(TUBE ASSY-FILLER)
with drain hose (part 1)
Left rear wheel
well area
Bolt torque:
5 N•m (0.5 kg-m, 44 in-lbs)

New drain hose (part 2) to
EVAP canister
(HOSE-DRAIN, CANISTER)

Figure 3

4. Reinstall the original vent control valve and pressure sensor onto the new canister.

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NTB15-075b

5. Route the new drain hose (part 2, HOSE-DRAIN, CANISTER) from where is was just
attached (shown in Figure 3) to the EVAP canister as shown in Figure 4.
 Figure 4 is viewed while looking at the driver’s side frame rail from passenger side of
vehicle.

Existing
EVAP hose

New canister drain
hose
(Pink paint mark to
EVAP canister)

Front of
vehicle

Existing
EVAP hose

Bracket for
canister
Figure 4

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NTB15-075b

6. Connect the following:


New drain hose to vent control valve



Harness connectors to vent control valve and pressure sensor (pressure sensor
behind new drain hose in Figure 5)



Two (2) existing EVAP hoses to canister



Attach clip between the new and existing EVAP drain hoses
 The clip is listed in PARTS INFORMATION.
NOTE: The clip is to be placed on the pink stripe of the new hose,
and connected to the existing hose and pipe going toward the engine.

7. Install the canister in place.


Make sure the hoses and their clips are routed and placed correctly.



Canister mounting bolt torque: 13.5 N•m (1.4 kg-m, 10 ft-lbs)

Vent control valve
connector

Pink stripe

New drain
hose

EVAP
canister

Clip connecting new to
old EVAP hoses
Figure 5

8. Install all other removed parts in the reverse order.


Install new fuel filler cap from PARTS INFORMATION.

9. Erase the DTC.

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NTB15-075b

PARTS INFORMATION
DESCRIPTION

PART NUMBER

QUANTITY

TUBE ASSY-FILLER
(Fuel Filler Pipe Assembly)

17221-9FP0A

1

18791-9FP1A

1

(1)

1

24220-9FP0C
16439-7S005
17251-ZZ62D

1
1
1

HOSE-DRAIN, CANISTER
(Canister Drain Hose)
CANISTER ASSY E
(EVAP Canister)
CLIP
CLAMP
FUEL FILLER CAP

(1) Use the VIN and the electronic parts catalog to look up the part number for the vehicle
you are working on.

CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE SYM DIA FRT
REPAIR FOR "MIL ON WITH DTC
P0448"

14950-ZR00B

FX51AA

ZE

32

0.8

AMENDMENT HISTORY
PUBLISHED DATE

REFERENCE

DESCRIPTION

August 21, 2015

NTB15-075

Original bulletin published

September 18, 2015

NTB15-075a

PARTS INFORMATION and CLAIMS
INFORMATION revised

July 27, 2020

NTB15-075b

References to vent control valve and pressure
sensor replacement removed from page 1,
page 4, and PARTS INFORMATION

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NTB15-075b