Nissan Pathfinder (2012 year). Manual - part 359

 

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Nissan Pathfinder (2012 year). Manual - part 359

 

 

FUEL PRESSURE

EC-953

< PERIODIC MAINTENANCE >

[VK56DE]

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• During fuel pressure check, check for fuel leakage from fuel connection every 3 minutes.

8. If result is unsatisfactory, go to next step.
9. Check the following.

• Fuel hoses and fuel tubes for clogging

• Fuel filter for clogging

• Fuel pump

• Fuel pressure regulator for clogging

If OK, replace fuel pressure regulator. Refer to 

FL-11

.

If NG, repair or replace malfunctioning part.

10. Before disconnecting Fuel Pressure Gauge and Fuel Pressure Adapter [SST (J-44321-6)], release fuel

pressure to zero. Refer to "FUEL PRESSURE RELEASE".

At idling: Approximately 350 kPa (3.57 kg/cm

2

, 51 psi)

August 2012

2012 Pathfinder

EC-954

< PERIODIC MAINTENANCE >

[VK56DE]

EVAP LEAK CHECK

EVAP LEAK CHECK

How to Detect EVAP Leakage

INFOID:0000000007358864

CAUTION:

• Never use compressed air or a high pressure pump.
• Never exceed 4.12 kPa (0.042 kg/cm

2

, 0.6 psi) of pressure in EVAP system.

NOTE:

• Never start engine.

• Improper installation of EVAP service port adapter (commercial service tool) to the EVAP service port may

cause a leak.

 WITH CONSULT

1. Attach the EVAP service port adapter (commercial service tool)

securely to the EVAP service port.

-

EVAP canister purge volume control solenoid valve (1)

-

: Vehicle front

2. Also attach the pressure pump and hose to the EVAP service

port adapter (commercial service tool).

3. Turn ignition switch ON.

4. Select the “EVAP SYSTEM CLOSE” of “WORK SUPPORT

MODE” with CONSULT.

5. Touch “START”. A bar graph (Pressure indicating display) will

appear on the screen.

6. Apply positive pressure to the EVAP system until the pressure

indicator reaches the middle of the bar graph.

7. Remove EVAP service port adapter (commercial service tool)

and hose with pressure pump. Refer to 

FL-16, "Removal and

Installation"

.

8. Locate the leak using a leak detector (commercial service tool).

Refer to 

EC-516, "Description"

.

 WITHOUT CONSULT

ALBIA0349ZZ

SEF462UA

SEF200U

August 2012

2012 Pathfinder

EVAP LEAK CHECK

EC-955

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1. Attach the EVAP service port adapter (commercial service tool)

securely to the EVAP service port (2).

-

EVAP canister purge volume control solenoid valve (1)

-

: Vehicle front

2. Also attach the pressure pump with pressure gauge to the EVAP

service port adapter (commercial service tool).

3. Apply battery voltage between the terminals of EVAP canister

vent control valve (3) to make a closed EVAP system.

-

Fuel filler pipe (top of frame view) (1)

-

EVAP control system pressure sensor (2)

-

EVAP canister (4)

-

Drain filter (5)

-

: Vehicle front

4. To locate the leak, deliver positive pressure to the EVAP system

until pressure gauge points reach 1.38 to 2.76 kPa (0.014 to
0.028 kg/cm

2

, 0.2 to 0.4 psi).

5. Remove EVAP service port adapter (commercial service tool)

and hose with pressure pump. Refer to 

FL-16, "Removal and

Installation"

.

6. Locate the leak using a leak detector (commercial service tool). Refer to 

EC-516, "Description"

.

ALBIA0349ZZ

SEF462UA

AWBIA0134ZZ

August 2012

2012 Pathfinder

EC-956

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[VK56DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Fuel Pressure

INFOID:0000000007358865

Idle Speed and Ignition Timing

INFOID:0000000007358866

*: Under the following conditions:
• Air conditioner switch: OFF
• Electric load: OFF (Lights, rear window defogger and heater fan)
• Steering wheel: Kept in straight-ahead position

Calculated Load Value

INFOID:0000000007358867

Mass Air Flow Sensor

INFOID:0000000007358868

*: Engine is warmed up to normal operating temperature and running under no load.

Intake Air Temperature Sensor

INFOID:0000000007358869

Engine Coolant Temperature Sensor

INFOID:0000000007358870

A/F Sensor 1 Heater

INFOID:0000000007358871

Fuel pressure at idling kPa (kg/cm

2

, psi)

Approximately 350 (3.57, 51)

Target idle speed

No-load* (in the P or N position)

650 

±

 50 rpm

Air conditioner: ON

In the P or N position

700 rpm or more

Ignition timing

In the P or N position

15

°

 

±

 5

°

BTDC

Condition

Calculated load value (%) (Using CONSULT or GST)

At idle

14.0 - 33.0

At 2,500 rpm

12.0 - 25.0

Supply voltage

Battery voltage (11 - 14 V)

Output voltage at idle

1.0 - 1.3 V*

Mass air flow (Using CONSULT or GST)

3.0 - 9.0 g/s at idle*

9.0 - 28.0 g/s at 2,500 rpm*

Temperature [

°

C (

°

F)]

Resistance (k

Ω

)

25 (77)

1.800 - 2.200

Temperature [

°

C (

°

F)]

Resistance (k

Ω

)

20 (68) 

2.1 - 2.9

50 (122)

0.68 - 1.00

90 (194)

0.236 - 0.260

Resistance [at 25

°

C (77

°

F)]

1.98 - 2.66 

Ω

August 2012

2012 Pathfinder

SERVICE DATA AND SPECIFICATIONS (SDS)

EC-957

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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Heated Oxygen sensor 2 Heater

INFOID:0000000007358872

Crankshaft Position Sensor (POS)

INFOID:0000000007358873

Refer to 

EC-747, "Component Inspection"

.

Camshaft Position Sensor (PHASE)

INFOID:0000000007358874

Refer to 

EC-751, "Component Inspection"

.

Throttle Control Motor

INFOID:0000000007358875

Fuel Injector

INFOID:0000000007358876

Fuel Pump

INFOID:0000000007358877

Resistance [at 25

°

C (77

°

F)]

8 - 10 

Ω

Resistance [at 25

°

C (77

°

F)]

Approximately 1 - 15 

Ω

Resistance [at 10 - 60

°

C (50 - 140

°

F)]

11.1 - 14.5 

Ω

Resistance [at 25

°

C (77

°

F)]

0.2 - 5.0 

Ω

August 2012

2012 Pathfinder

EX-2

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000007828724

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a

hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing

serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000007358891

NOTE:

• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-

TEM).

• Remove and install all control units after disconnecting both battery cables with the ignition knob in the

″

LOCK

″

 position.

• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing work. If

DTC is detected, perform trouble diagnosis according to self-diagnostic results.

For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-

anism is adopted on the key cylinder.

For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and

steering wheel rotation will become impossible.

If steering wheel rotation is required when battery power is interrupted, follow the procedure below before

starting the repair operation.

OPERATION PROCEDURE

1. Connect both battery cables.

NOTE:

Supply power using jumper cables if battery is discharged.

2. Use the Intelligent Key or mechanical key to turn the ignition switch to the 

″

ACC

″

 position. At this time, the

steering lock will be released.

3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be

rotated.

4. Perform the necessary repair operation.

August 2012

2012 Pathfinder

PRECAUTIONS

EX-3

< PRECAUTION >

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5. When the repair work is completed, return the ignition switch to the 

″

LOCK

″

 position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

6. Perform a self-diagnosis check of all control units using CONSULT. 

August 2012

2012 Pathfinder

 

 

 

 

 

 

 

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