Nissan Pathfinder (2008 year). Manual — part 103
BRC-130
< BASIC INSPECTION >
[HDC/HSA/VDC/TCS/ABS]
DIAGNOSIS AND REPAIR WORKFLOW
Diagnostic Work Sheet
INFOID:0000000001690942
SFIA3265E
INSPECTION AND ADJUSTMENT
BRC-131
< BASIC INSPECTION >
[HDC/HSA/VDC/TCS/ABS]
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
INFOID:0000000001690943
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:0000000001690944
1.
PERFORM THE NEUTRAL POSITION ADJUSTMENT FOR THE STEERING ANGLE SENSOR
Perform the neutral position adjustment for the steering angle sensor.
>> Refer to
BRC-131, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION :
, GO TO 2
2.
PERFORM CALIBRATION OF THE DECEL G SENSOR
Perform calibration of the decel G sensor.
>> Refer to
BRC-132, "CALIBRATION OF DECEL G SENSOR : Special Repair Requirement"
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Description
INFOID:0000000001690945
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
INFOID:0000000001690946
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-III
(Adjustment cannot be done without CONSULT-III)
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
×
BRC-132
< BASIC INSPECTION >
[HDC/HSA/VDC/TCS/ABS]
INSPECTION AND ADJUSTMENT
>> GO TO 2
2.
PERFORM THE NEUTRAL POSITION ADJUSTMENT FOR THE STEERING ANGLE SENSOR
1.
On the CONSULT-III screen, touch “WORK SUPPORT” and “ST ANG SEN 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-141, "CONSULT-III Function (ABS)"
.
• ECM: Refer to
EC-74, "CONSULT-III Function (ENGINE)"
(VK56DE).
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:0000000001690947
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
INFOID:0000000001690948
CALIBRATION OF DECEL G SENSOR
CAUTION:
To calibrate the decel G sensor, make sure to use CONSULT-III
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 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
×
INSPECTION AND ADJUSTMENT
BRC-133
< BASIC INSPECTION >
[HDC/HSA/VDC/TCS/ABS]
C
D
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G
H
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L
M
A
B
BRC
N
O
P
(Calibration cannot be done without CONSULT-III)
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-III 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
±
.
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-141, "CONSULT-III Function (ABS)"
• ECM: Refer to
EC-74, "CONSULT-III Function (ENGINE)"
(VK56DE).
Are the memories erased?
YES
>> INSPECTION END
NO
>> Check the items indicated by the self-diagnosis.
BRC-134
< FUNCTION DIAGNOSIS >
[HDC/HSA/VDC/TCS/ABS]
VDC
FUNCTION DIAGNOSIS
VDC
System Diagram
INFOID:0000000001690949
HYDRAULIC CIRCUIT DIAGRAM
WFIA0347E
WFIA0187E
VDC
BRC-135
< FUNCTION DIAGNOSIS >
[HDC/HSA/VDC/TCS/ABS]
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System Description
INFOID:0000000001690950
• 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-III is available.
BRC-136
< FUNCTION DIAGNOSIS >
[HDC/HSA/VDC/TCS/ABS]
VDC
Component Parts Location
INFOID:0000000001690951
WFIA0348E
VDC
BRC-137
< FUNCTION DIAGNOSIS >
[HDC/HSA/VDC/TCS/ABS]
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BRC
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Component Description
INFOID:0000000001690952
Component parts
Reference
ABS actuator and electric unit (control unit)
Pump
Motor
Actuator relay
Solenoid valve
VDC switch-over valve
(CV1, CV2, SV1, SV2)
Wheel sensor
Yaw rate/side/decel G sensor
Steering angle sensor
VDC OFF switch
ABS warning lamp
Brake warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
Front pressure sensor
Rear pressure sensor
Active booster
Delta stroke sensor
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