Nissan Pathfinder (2012 year). Manual — part 107
BRC-122
< BASIC INSPECTION >
[TYPE 2]
INSPECTION AND ADJUSTMENT
>> 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-138, "CONSULT Function (ABS)"
• ECM: Refer to
.
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:0000000007356822
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:0000000007356823
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
INSPECTION AND ADJUSTMENT
BRC-123
< BASIC INSPECTION >
[TYPE 2]
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(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-138, "CONSULT Function (ABS)"
.
• ECM: Refer to
.
Are the memories erased?
YES
>> Inspection End.
NO
>> Check the items indicated by the self-diagnosis.
August 2012
2012 Pathfinder
BRC-124
< SYSTEM DESCRIPTION >
[TYPE 2]
APPLICATION NOTICE
SYSTEM DESCRIPTION
APPLICATION NOTICE
Application Notice
INFOID:0000000007818419
Service information
Remarks
TYPE 1
VDC/TCS/ABS (VQ40DE)
TYPE 2
VDC/TCS/ABS (VK56DE)
August 2012
2012 Pathfinder
VDC
BRC-125
< SYSTEM DESCRIPTION >
[TYPE 2]
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VDC
System Diagram
INFOID:0000000007356825
Hydraulic Circuit Diagram
INFOID:0000000007356826
AWFIA0737GB
WFIA0187E
August 2012
2012 Pathfinder
BRC-126
< SYSTEM DESCRIPTION >
[TYPE 2]
VDC
System Description
INFOID:0000000007356827
• 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
VDC
BRC-127
< SYSTEM DESCRIPTION >
[TYPE 2]
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Component Parts Location
INFOID:0000000007356828
AWFIA0845GB
1.
Front wheel sensor LH E18
Front wheel sensor RH E117
2.
Delta stroke sensor E114
3.
Active booster E49
4.
Front pressure sensor E31
5.
Rear pressure sensor E32
6.
Brake fluid level switch E21
7.
ABS actuator and electric unit (control
unit) E127
8.
Combination meter M24
9.
Steering angle sensor (behind spiral
cable) M47
August 2012
2012 Pathfinder
BRC-128
< SYSTEM DESCRIPTION >
[TYPE 2]
VDC
Component Description
INFOID:0000000007356829
10. Yaw rate/side/decel G sensor B73
11. Rear wheel sensor LH C13
12. Rear wheel sensor RH C13
13. VDC OFF switch M154
14. Stop lamp switch E38
15. Stop lamp relay E12
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
Stop lamp switch
Front pressure sensor
Rear pressure sensor
Steering angle sensor
Brake fluid level switch
Active booster
Delta stroke sensor
VDC OFF switch
ABS warning lamp
Brake warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
August 2012
2012 Pathfinder
TCS
BRC-129
< SYSTEM DESCRIPTION >
[TYPE 2]
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TCS
System Diagram
INFOID:0000000007818474
System Description
INFOID:0000000007356831
• Traction Control System is a function that electronically controls engine torque, brake fluid pressure and A/T
gear position to ensure the optimum slippage ratio at drive wheels by computing wheel speed signals from 4
wheel sensors. When ABS actuator and electric unit (control unit) detects a spin at drive wheels (rear
wheels), it compares wheel speed signals from all 4 wheels. At this time, LH and RH rear brake fluid pres-
sure are controlled, while fuel being cut to engine and throttle valve being closed to reduce engine torque by
the control unit. Further more, throttle position is continuously controlled to ensure the optimum engine
torque at all times.
• During TCS operation, it informs driver of system operation by flashing SLIP indicator lamp.
• Electrical system diagnosis by CONSULT is available.
AWFIA0737GB
August 2012
2012 Pathfinder
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