Nissan Pathfinder (2012 year). Manual - part 121

 

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Nissan Pathfinder (2012 year). Manual - part 121

 

 

BRC-234

< UNIT REMOVAL AND INSTALLATION >

[TYPE 2]

YAW RATE/SIDE/DECEL G SENSOR

YAW RATE/SIDE/DECEL G SENSOR

Removal and Installation

INFOID:0000000007356988

REMOVAL

1. Remove the center console. Refer to 

IP-22, "Removal and Installation"

.

2. Remove the yaw rate/side/decel G sensor nuts as shown.

CAUTION:

• Do not use power tools to remove or install the yaw rate/

side/decel G sensor.

• Do not drop or strike the yaw rate/side/decel G sensor.

NOTE:

The location of the yaw rate/side/decel G sensor is the same for

all models.

3. Disconnect the yaw rate/side/decel G sensor connector and remove the yaw rate/side/decel G sensor.

INSTALLATION

Installation is in the reverse order of removal.

• After installing the yaw rate/side/decel G sensor, it is necessary to calibrate the yaw rate/side/decel G sen-

sor. Refer to 

BRC-122, "CALIBRATION OF DECEL G SENSOR : Special Repair Requirement"

.

WFIA0230E

August 2012

2012 Pathfinder

CCS-2

< PRECAUTION >

[ASCD]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000007808178

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:0000000007808179

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

CCS

PRECAUTIONS

CCS-3

< PRECAUTION >

[ASCD]

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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

CCS-4

< SYSTEM DESCRIPTION >

[ASCD]

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

SYSTEM DESCRIPTION

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

Information

INFOID:0000000007347419

Automatic Speed Control Device (ASCD) system is controlled by ECM.

Regarding the information for ASCD system, refer to following;

• VQ40DE: 

EC-53, "System Description"

• VK56DE: 

EC-512, "System Description"

August 2012

2012 Pathfinder

CHG

CHG-1

ELECTRICAL & POWER CONTROL

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SECTION 

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CONTENTS

CHARGING SYSTEM

PRECAUTION ...............................................

2

PRECAUTIONS ...................................................

2

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

2

Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ...................................
..

2

Precaution for Power Generation Variable Voltage 
Control System ........................................................
..

3

Precaution for Work  ..................................................

3

PREPARATION ............................................

4

PREPARATION ...................................................

4

Special Service Tool  .................................................

4

Commercial Service Tool  ..........................................

4

BASIC INSPECTION  ....................................

5

DIAGNOSIS AND REPAIR WORKFLOW  ..........

5

Work Flow (With EXP-800 NI or GR8-1200 NI)  ........

5

Work Flow (Without EXP-800 NI or GR8-1200 NI) ......

8

SYSTEM DESCRIPTION  .............................

11

CHARGING SYSTEM .........................................

11

System Diagram ......................................................

11

System Description  .................................................

11

Component Description ..........................................

11

POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM ................................

12

System Diagram ......................................................

12

System Description  .................................................

12

Component Description ...........................................

12

DTC/CIRCUIT DIAGNOSIS  .........................

13

CHARGING SYSTEM PRELIMINARY IN-
SPECTION ..........................................................

13

Diagnosis Procedure ...............................................

13

POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM OPERATION IN-
SPECTION ........................................................

14

Diagnosis Procedure  ...............................................

14

B TERMINAL CIRCUIT  .....................................

16

Description ...............................................................

16

Diagnosis Procedure  ...............................................

16

L TERMINAL CIRCUIT (OPEN) ........................

17

Description ...............................................................

17

Diagnosis Procedure  ...............................................

17

L TERMINAL CIRCUIT (SHORT)  .....................

19

Description ...............................................................

19

Diagnosis Procedure  ...............................................

19

S TERMINAL CIRCUIT  .....................................

20

Description ...............................................................

20

Diagnosis Procedure  ...............................................

20

WIRING DIAGRAM ......................................

21

CHARGING SYSTEM .......................................

21

Wiring Diagram ........................................................

21

SYMPTOM DIAGNOSIS  ..............................

27

CHARGING SYSTEM .......................................

27

Symptom Table  .......................................................

27

REMOVAL AND INSTALLATION ...............

28

GENERATOR ....................................................

28

Removal and Installation  .........................................

28

SERVICE DATA AND SPECIFICATIONS 
(SDS) ............................................................

31

SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

31

Generator ................................................................

31

August 2012

2012 Pathfinder

CHG-2

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000007355038

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:0000000007355039

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

CHG

PRECAUTIONS

CHG-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. 

Precaution for Power Generation Variable Voltage Control System

INFOID:0000000007355040

CAUTION:

For this model, the battery current sensor that is installed to the negative battery cable measures the

charging/discharging current of the battery and performs various engine controls. If an electrical com-

ponent is connected directly to the negative battery terminal, the current flowing through that compo-

nent will not be measured by the battery current sensor. This condition may cause a malfunction of

the engine control system and battery discharge may occur. Do not connect an electrical component

or ground wire directly to the battery terminal.

Precaution for Work

INFOID:0000000007355041

• When removing or disassembling each component, be careful not to damage or deform it. If a component

may be subject to interference, be sure to protect it with a shop cloth.

• When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component

with a shop cloth or vinyl tape to protect it.

• Protect the removed parts with a shop cloth and prevent them from being dropped.

• Replace a deformed or damaged clip.

• If a part is specified as a non-reusable part, always replace it with new one.

• Be sure to tighten bolts and nuts securely to the specified torque.

• After installation is complete, be sure to check that each part works properly.

• Follow the steps below to clean components.

- Water soluble dirt: Dip a soft cloth into lukewarm water, and wring the water out of the cloth to wipe the dirty

area.

Then rub with a soft and dry cloth.

- Oily dirt: Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%), and wipe

the dirty area.

Then dip a cloth into fresh water, and wring the water out of the cloth to wipe the detergent off. Then rub with

a soft and dry cloth.

• Do not use organic solvent such as thinner, benzene, alcohol, or gasoline.

• For genuine leather seats, use a genuine leather seat cleaner.

August 2012

2012 Pathfinder

 

 

 

 

 

 

 

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