Nissan Pathfinder (2012 year). Manual - part 93

BRC-10

< BASIC INSPECTION >

[TYPE 1]

DIAGNOSIS AND REPAIR WORKFLOW

2.

PERFORM THE SELF-DIAGNOSIS

Check the DTC display with the self-diagnosis function. Refer to 

BRC-29, "CONSULT Function (ABS)"

.

Is there any DTC displayed?

YES

>> GO TO 3

NO

>> GO TO 4

3.

PERFORM THE SYSTEM DIAGNOSIS

Perform the diagnosis applicable to the displayed DTC. Refer to 

BRC-86, "DTC No. Index"

.

>> GO TO 7

4.

CHECK THE SYMPTOM THAT IS NOT CONSIDERED A SYSTEM MALFUNCTION

Check that the symptom is a normal operation that is not considered a system malfunction. Refer to 

BRC-104,

"Description"

.

Is the symptom a normal operation?

YES

>> Inspection End.

NO

>> GO TO 5

5.

CHECK THE WARNING LAMP AND INDICATOR LAMP FOR ILLUMINATION

Check that the warning lamp and indicator lamp illuminate.

• ABS warning lamp: Refer to 

BRC-76, "Description"

.

• Brake warning lamp: Refer to 

BRC-77, "Description"

.

• VDC OFF indicator lamp: Refer to 

BRC-78, "Description"

.

• SLIP indicator lamp: Refer to 

BRC-80, "Description"

.

Is ON/OFF timing normal?

YES

>> GO TO 6

NO

>> GO TO 2

6.

PERFORM THE DIAGNOSIS BY SYMPTOM

Perform the diagnosis applicable to the symptom. 

>> GO TO 7

7.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 8

8.

FINAL CHECK

Perform the self-diagnosis again, and check that the malfunction is repaired completely. After checking, erase

the self-diagnosis memory. Refer to 

BRC-29, "CONSULT Function (ABS)"

.

Is no other DTC present and the repair completed?

YES

>> Inspection End.

NO

>> GO TO 3

August 2012

2012 Pathfinder

DIAGNOSIS AND REPAIR WORKFLOW

BRC-11

< BASIC INSPECTION >

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Diagnostic Work Sheet

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SFIA3265E

August 2012

2012 Pathfinder

BRC-12

< BASIC INSPECTION >

[TYPE 1]

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

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After replacing the ABS actuator and electric unit (control unit), perform the following procedures:

• Neutral position adjustment for the steering angle sensor

• Calibration of the decel G sensor

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

INFOID:0000000007356662

1.

PERFORM THE NEUTRAL POSITION ADJUSTMENT FOR THE STEERING ANGLE SENSOR

Perform the neutral position adjustment for the steering angle sensor.

>> Refer to 

BRC-12, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Spe-

cial Repair Requirement"

, GO TO 2

2.

PERFORM CALIBRATION OF THE DECEL G SENSOR

Perform calibration of the decel G sensor.

>> Refer to 

BRC-13, "CALIBRATION OF DECEL G SENSOR : Special Repair Requirement"

.

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Description

INFOID:0000000007356663

Refer to the table below to determine if adjustment of steering angle sensor neutral position is required.

×

: Required –: Not required

ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Re-
pair Requirement

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ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

CAUTION:

To adjust neutral position of steering angle sensor, make sure to use CONSULT

(Adjustment cannot be done without CONSULT)

1.

ALIGN THE VEHICLE STATUS

Stop vehicle with front wheels in straight-ahead position.

Situation

Adjustment of steering angle sensor neutral position

Removing/Installing ABS actuator and electric unit (control unit)

—

Replacing ABS actuator and electric unit (control unit)

×

Removing/Installing steering angle sensor

×

Replacing steering angle sensor

×

Removing/Installing steering components

×

Replacing steering components

×

Removing/Installing suspension components

×

Replacing suspension components

×

Change tires to new ones

—

Tire rotation

—

Adjusting wheel alignment

×

Battery disconnection

×

August 2012

2012 Pathfinder

INSPECTION AND ADJUSTMENT

BRC-13

< BASIC INSPECTION >

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>> GO TO 2

2.

PERFORM THE NEUTRAL POSITION ADJUSTMENT FOR THE STEERING ANGLE SENSOR

1. On the CONSULT screen, touch “WORK SUPPORT” and “ST ANGLE SENSOR ADJUSTMENT” in order.

2. Touch “START”.

CAUTION:

Do not touch steering wheel while adjusting steering angle sensor.

3. After approximately 10 seconds, touch “END”.

NOTE:

After approximately 60 seconds, it ends automatically.

4. Turn ignition switch OFF, then turn it ON again.

CAUTION:

Be sure to perform above operation.

>> GO TO 3

3.

CHECK DATA MONITOR

1. Run vehicle with front wheels in straight-ahead position, then stop.

2. Select “DATA MONITOR”. Then make sure “STR ANGLE SIG” is within 0

±

2.5

°

.

Is the steering angle within the specified range?

YES

>> GO TO 4

NO

>> Perform the neutral position adjustment for the steering angle sensor again, GO TO 1

4.

ERASE THE SELF-DIAGNOSIS MEMORY

Erase the self-diagnosis memory of the ABS actuator and electric unit (control unit) and ECM.

• ABS actuator and electric unit (control unit): Refer to 

BRC-29, "CONSULT Function (ABS)"

.

• ECM: Refer to 

EC-77, "CONSULT Function"

.

Are the memories erased?

YES

>> Inspection End.

NO

>> Check the items indicated by the self-diagnosis.

CALIBRATION OF DECEL G SENSOR
CALIBRATION OF DECEL G SENSOR : Description

INFOID:0000000007356665

Refer to the table below to determine if calibration of the decel G sensor is required.

×

: Required –: Not required

CALIBRATION OF DECEL G SENSOR : Special Repair Requirement

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CALIBRATION OF DECEL G SENSOR

CAUTION:

To calibrate the decel G sensor, make sure to use CONSULT

Situation

Calibration of decel G sensor

Removing/Installing ABS actuator and electric unit (control unit)

—

Replacing ABS actuator and electric unit (control unit)

×

Removing/Installing steering components

—

Replacing steering components

—

Removing/Installing suspension components

—

Replacing suspension components

—

Change tires to new ones

—

Tire rotation

—

Adjusting wheel alignment

—

Removing/Installing yaw rate/side/decel G sensor

×

Replacing yaw rate/side/decel G sensor

×

August 2012

2012 Pathfinder

BRC-14

< BASIC INSPECTION >

[TYPE 1]

INSPECTION AND ADJUSTMENT

(Calibration cannot be done without CONSULT)

1.

ALIGN THE VEHICLE STATUS

Stop vehicle with front wheels in straight-ahead position.

>> GO TO 2

2.

PERFORM CALIBRATION OF DECEL G SENSOR

1. On the CONSULT screen, touch “WORK SUPPORT” and “DECEL G SEN CALIBRATION” in order.

2. Touch “START”.

3. After approximately 10 seconds, touch “END”.

NOTE:

After approximately 60 seconds, it ends automatically.

4. Turn ignition switch OFF, then turn it ON again.

CAUTION:

Be sure to perform above operation.

>> GO TO 3

3.

CHECK DATA MONITOR

1. Run vehicle with front wheels in straight-ahead position, then stop.

2. Select “DATA MONITOR”. Then make sure “DECEL G-SEN” is within 

±

 0.08G.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Perform calibration of decel G sensor again, GO TO 1

4.

ERASE THE SELF-DIAGNOSIS MEMORY

Erase the self-diagnosis memory of the ABS actuator and electric unit (control unit) and ECM.

• ABS actuator and electric unit (control unit): Refer to 

BRC-29, "CONSULT Function (ABS)"

.

• ECM: Refer to 

EC-77, "CONSULT Function"

.

Are the memories erased?

YES

>> Inspection End.

NO

>> Check the items indicated by the self-diagnosis.

August 2012

2012 Pathfinder

APPLICATION NOTICE

BRC-15

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

APPLICATION NOTICE

Application Notice

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Service information

Remarks

TYPE 1

VDC/TCS/ABS (VQ40DE)

TYPE 2

VDC/TCS/ABS (VK56DE)

August 2012

2012 Pathfinder

BRC-16

< SYSTEM DESCRIPTION >

[TYPE 1]

VDC

VDC

System Diagram

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Hydraulic Circuit Diagram

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AWFIA0453GB

AWFIA0201GB

August 2012

2012 Pathfinder

VDC

BRC-17

< SYSTEM DESCRIPTION >

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System Description

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• Vehicle Dynamics Control system detects driver

′

s steering operation amount and brake pedal travel from

steering angle sensor and pressure sensors. Using information from yaw rate/side/decel G sensor and

wheel sensor, VDC judges driving condition (conditions of under steer and over steer) to improve vehicle

driving stability by controlling brake application to 4 wheels and engine output.

• During VDC operation, it informs driver of system operation by flashing SLIP indicator lamp.

• Electrical system diagnosis by CONSULT is available.

August 2012

2012 Pathfinder