Nissan Pathfinder (2011 year). Instruction — part 105

PRECAUTIONS

BRC-105

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PRECAUTION

PRECAUTIONS

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

INFOID:0000000006245964

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

Instruction. 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:0000000006245965

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-III 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.

2011 Pathfinder

BRC-106

< PRECAUTION >

[TYPE 1]

PRECAUTIONS

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-III.

Precaution for Brake System

INFOID:0000000006245966

CAUTION:

• Refer to

MA-18, "FOR USA AND CANADA : Fluids and Lubricants"

(United States and Canada),

MA-

20, "FOR MEXICO : Fluids and Lubricants"

(Mexico) for recommended brake fluid.

• Never reuse drained brake fluid.

• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is

splashed on painted areas, wash it away with water immediately.

• To clean or wash all parts of master cylinder and disc brake caliper, use clean brake fluid.

• Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic sys-

tem.

• Use flare nut wrench when removing and installing brake

tube.

• If a brake fluid leak is found, the part must be disassembled

without fail. Then it has to be replaced with a new one if a

defect exists.

• Turn the ignition switch OFF and remove the connector of the

ABS actuator and electric unit (control unit) or the battery ter-

minal before performing the work.

• Always torque brake lines when installing.

• Burnish the brake contact surfaces after refinishing or replac-

ing rotors, after replacing pads, or if a soft pedal occurs at

very low mileage.

Refer to

BR-42, "Brake Burnishing"

(front disc brake) or

BR-47, "Brake Burnishing"

(rear disc brake).

WARNING:

• Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.

Precaution for Brake Control

INFOID:0000000006245967

• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is

normal.

• Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine

compartment. This is a normal status of operation check.

• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or

snow-covered (fresh, deep snow) roads.

• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer

(what symptoms are present under what conditions) and check for simple causes before starting diagnosis.

Besides electrical system inspection, check brake booster operation, brake fluid level, and fluid leaks.

• If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts, stop-

ping distance or steering stability may deteriorate.

• If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or

error.

• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness

pinches, open circuits or improper wiring.

• If the following components are replaced with non-genuine components or modified, the VDC OFF indicator

lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components

related to suspension (shock absorbers, struts, springs, bushings, etc.), tires, wheels (exclude specified

size), components related to brake system (pads, rotors, calipers, etc.), components related to engine (muf-

fler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).

• Driving with broken or excessively worn suspension components, tires or brake system components may

cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not

operate properly.

• When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The

noise is a result of the normal operation of the TCS and VDC.

• When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as

sharp curves on a freeway), the VDC may not operate normally, or the VDC warning lamp and the SLIP indi-

cator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the engine.

SBR686C

2011 Pathfinder

PRECAUTIONS

BRC-107

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• Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw

rate/side/decel G sensor to indicate a problem. This is not a problem if normal operation can be resumed

after restarting the engine.

• If battery is removed or steering angle sensor is disconnected, power to steering angle sensor is lost and the

screen goes into steering angle sensor safe mode.

• When screen goes into steering angle sensor safe mode, perform "Adjustment of Steering Angle Sensor

Neutral Position" with CONSUT-III and check that VDC OFF indicator turns off. Additionally, perform self-

diagnosis, check that only "Steering Angle Sensor Safe Mode" is shown for self-diagnostic result, and then

delete the memory. (If the self-diagnostic result shows an indication other than "Steering Angle Sensor Safe

Mode", repair the relevant part and restart self-diagnosis.) The steering angle sensor is released and returns

to normal condition by performing the above operation.

• When checking, if only "Steering Angle Sensor Safe Mode" is shown in the self-diagnostic result and VDC

OFF indicator is off, delete history of malfunction. This happens when battery power supply is lost and the

screen goes into Steering Angle Sensor Safe Mode, and then screen returns to normal mode automatically

by driving the vehicle in a straight forward direction [for approximately 30 seconds at 20 km/h (12 MPH) or

more] after power is supplied again.

NOTE:

VDC OFF indicator lamp is on when VDC OFF switch is on.

Precaution for CAN System

INFOID:0000000006245968

• Do not apply voltage of 7.0V or higher to terminal to be measured.

• Maximum open terminal voltage of tester in use must be less than 7.0V.

• Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.

• Area to be repaired must be soldered and wrapped with tape.

Make sure that fraying of twisted wire is within 110 mm (4.33 in).

• Do not make a bypass connection to repaired area. (If the circuit is

bypassed, characteristics of twisted wire will be lost.)

PKIA0306E

PKIA0307E

2011 Pathfinder

BRC-108

< PREPARATION >

[TYPE 1]

PREPARATION

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000006245969

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

KV991J0080
(J-45741)
ABS active wheel sensor tester

Checking operation of ABS active wheel sen-
sors

ST30031000
(

—

)

Bearing puller

Removing sensor rotor

ST30720000
(J-25405)
Drift

Installing rear sensor rotor

a: 77 mm (0.03 in) diameter
b: 55 mm (2.17 in) diameter

ST27863000
(

—

)

Drift

Installing rear sensor rotor

a: 75 mm (2.95 in) diameter
b: 62 mm (2.44 in) diameter

KV40104710
(

—

)

Drift

Installing rear sensor rotor

a: 76 mm (2.99 in) diameter
b: 68.5 mm (2.697 in) diameter

WFIA0101E

ZZA0700D

ZZA0701D

ZZA0832D

ZZA0832D

2011 Pathfinder

PREPARATION

BRC-109

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Commercial Service Tool

INFOID:0000000006245970

Tool name

Description

1. Flare nut crowfoot
2. Torque wrench

Removing and installing brake piping

a: 10 mm (0.39 in)/12 mm (0.47 in)

Power tool

Removing nuts, bolts and screws

S-NT360

PIIB1407E

2011 Pathfinder

BRC-110

< UNIT REMOVAL AND INSTALLATION >

[TYPE 1]

WHEEL SENSORS

UNIT REMOVAL AND INSTALLATION

WHEEL SENSORS

Removal and Installation

INFOID:0000000006245971

REMOVAL

1. When removing the front wheel sensor, remove the disc rotor to gain access to the front wheel sensor

bolt. Refer to

BR-43, "Removal and Installation of Brake Caliper and Disc Rotor"

.

2. When removing the rear wheel sensor, remove the spare tire.
3. Remove the wheel sensor bolt.
4. Pull the wheel sensor out, being careful to turn it as little as possible.

CAUTION:

• Be careful not to damage wheel sensor edge or the sensor rotor teeth.

• Do not pull on the wheel sensor harness.

5. Disconnect the wheel sensor harness connector, then remove the wheel sensor harness from the mounts

and remove the wheel sensor.

• When removing the rear wheel sensor, both sensors must be removed as they are on the same har-

ness.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Inspect wheel sensor O-ring, replace wheel sensor if damaged.

• Before installing the wheel sensor, make sure no foreign materials (such as iron fragments) are

adhered to the pick-up part of the wheel sensor, to the inside of the wheel sensor hole or on the sen-

sor rotor in the wheel hub assembly.

• Clean wheel sensor hole and mating surface with brake cleaner and a lint-free shop rag. Be careful

that dirt and debris do not enter the axle or wheel hub assembly.

NOTE:

Apply a coat of suitable grease to the wheel sensor O-ring and mating hole.

1.

Front wheel sensor LH

2.

Rear wheel sensor RH

AWFIA0786GB

2011 Pathfinder

SENSOR ROTOR

BRC-111

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SENSOR ROTOR

Removal and Installation

INFOID:0000000006245972

FRONT WHEEL SENSOR ROTOR

The front wheel sensor rotors are built into the front wheel hub and bearing assemblies and are not remov-

able. If damaged, replace the front wheel hub and bearing assembly. Refer to

FAX-10, "Removal and Installa-

tion"

.

REAR WHEEL SENSOR ROTOR

Removal

1. Remove the side flange from the final drive assembly. Refer to

DLN-422, "Removal and Installation"

.

CAUTION:

Discard side oil seal.

2. Remove the sensor rotor from the side flange, using suitable tool with Tool.

Installation

1. Install the new sensor rotor on the side flange using Tools and a

suitable press as shown. Make sure the sensor rotor is fully

seated on the side flange.

CAUTION:

Do not reuse the old sensor rotor.

2. Install the side flange on the final drive assembly. Refer to

DLN-422, "Removal and Installation"

.

CAUTION:

Do not reuse the side oil seal. The side oil seal must be replaced every time the side flange is

removed from the final drive assembly.

Tool number

: ST30031000 ( — )

Tool numbers

(A): ST30720000 (J-25405)
(B): ST27863000 ( — )
(C): KV40104710 ( — )

WFIA0334E

2011 Pathfinder

BRC-112

< UNIT REMOVAL AND INSTALLATION >

[TYPE 1]

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)

Removal and Installation

INFOID:0000000006245973

REMOVAL

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.
1. Disconnect the battery negative terminal. Refer to

PG-76, "Removal and Installation"

.

2. Remove air cleaner assembly. Refer to

EM-26, "Removal and Installation"

.

3. Disconnect the actuator harness from the ABS actuator and electric unit (control unit).
4. Disconnect the brake tubes.

CAUTION:

• To remove the brake tubes, use a flare nut wrench to prevent the flare nuts and brake tubes from

being damaged.

• Be careful not to splash brake fluid on painted areas.

5. Remove the three bolts and remove the ABS actuator and electric unit (control unit) and bracket.
6. Remove the bracket from the ABS actuator and electric unit (control unit).

INSTALLATION

Installation is in the reverse order of removal.

1.

From master cylinder secondary side
18.2 N·m (1.9 kg-m, 13 ft-lb)

2.

To rear right disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)

3.

To rear left disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)

4.

To front right disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)

5.

To front left disc brake
13.0 N·m (1.3 kg-m, 10 ft-lb)

6.

From master cylinder primary side
18.2 N·m (1.9 kg-m, 13 ft-lb)

7.

ABS actuator and electric unit (control
unit)

8.

Harness connector

Front

AWFIA0743GB

2011 Pathfinder