Nissan Pathfinder (2006 year). Instruction — part 121
TROUBLE DIAGNOSES FOR SYMPTOMS
BRC-53
[VDC/TCS/ABS]
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BRC
2006 Pathfinder
TROUBLE DIAGNOSES FOR SYMPTOMS
PFP:99999
ABS Works Frequently
EFS0065N
1.
CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK
>> GO TO 2.
NG
>> Carry out self-diagnosis. Refer to
.
2.
CHECK WHEEL SENSORS
Check the following.
●
Wheel sensor mounting for looseness
●
Wheel sensors for physical damage
●
Wheel sensor connectors for terminal damage or loose connections
●
Sensor rotor and mount for physical damage (rear only)
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace as necessary.
3.
CHECK FRONT AND REAR AXLES
Check front and rear axles for excessive looseness. Refer to
FAX-5, "WHEEL BEARING INSPECTION"
or
RAX-5, "WHEEL BEARING INSPECTION"
OK or NG
OK
>> GO TO 4.
NG
>> Repair as necessary.
4.
CHECK BRAKE FLUID PRESSURE
Check brake fluid pressure distribution.
Refer to
.
Is brake fluid pressure distribution normal?
YES
>> Inspection End.
NO
BRC-54
[VDC/TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
2006 Pathfinder
Unexpected Pedal Action
EFS0065O
1.
CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.
OK or NG
OK
>> GO TO 2.
NG
>> Carry out self-diagnosis. Refer to
2.
CHECK BRAKE PEDAL STROKE
Check brake pedal stroke.
Is pedal stroke excessive?
YES
>> Perform Basic Inspection. Refer to
.
NO
>> GO TO 3.
3.
CHECK CONNECTOR AND BRAKING PERFORMANCE
1.
Disable ABS by disconnecting ABS actuator and electric unit (control unit) connector.
2.
Drive vehicle and check brake operation.
NOTE:
●
Stopping distance may be longer than vehicles without ABS when road condition is slippery.
●
Driving the vehicle with the ABS actuator and electric unit (control unit) disconnected may induce DTCs
in electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to
OK or NG
OK
>> GO TO 4.
NG
>> Perform Basic Inspection. Refer to
4.
CHECK WHEEL SENSORS
Check the following.
●
Wheel sensor mounting for looseness
●
Wheel sensors for physical damage
●
Wheel sensor connectors for terminal damage or loose connections
OK or NG
OK
>> Check ABS actuator and electric unit (control unit) connector terminals for deformation, discon-
nection, looseness or damage. Reconnect ABS actuator and electric unit (control unit) harness
connector. Then retest.
NG
>> Repair or replace as necessary.
SBR540A
TROUBLE DIAGNOSES FOR SYMPTOMS
BRC-55
[VDC/TCS/ABS]
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BRC
2006 Pathfinder
Long Stopping Distance
EFS0065P
1.
CHECK BASE BRAKING SYSTEM PERFORMANCE
1.
Disable ABS by disconnecting ABS actuator and electric unit (control unit) connector.
2.
Drive vehicle and check brake operation.
NOTE:
●
Stopping distance may be longer than vehicles without ABS when road condition is slippery.
●
Driving the vehicle with the ABS actuator and electric unit (control unit) disconnected may induce DTCs
in electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to
.
OK or NG
OK
>> Go to
BRC-53, "ABS Works Frequently"
NG
>> Perform Basic Inspection. Refer to
ABS Does Not Work
EFS0065Q
CAUTION:
The ABS does not operate when the vehicle speed is 10 km/h (6 MPH) or less.
1.
CHECK WARNING LAMP ACTIVATION
Turn ignition switch ON and check for warning lamp activation.
●
Warning lamp should activate for approximately 2 seconds after turning the ignition switch ON.
OK or NG
OK
>> Carry out self-diagnosis. Refer to
.
NG
>> Go to
BRC-56, "ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On"
Pedal Vibration or ABS Operation Noise
EFS0065R
NOTE:
During ABS activation, pedal vibration may be felt and a noise may be heard. This is normal and does not indi-
cate a malfunction.
1.
CHECK SYMPTOM
1.
Apply brake.
2.
Start engine.
Does the symptom occur only when engine is started?
YES
>> Carry out self-diagnosis. Refer to
.
NO
>> GO TO 2.
2.
RECHECK SYMPTOM
Does the symptom occur only when electrical equipment switches (such as headlamps) are turned on?
YES
>> Check for radio, antenna or related wiring that is routed too close to the ABS actuator and electric
unit (control unit) and reroute as necessary.
NO
>> Go to
BRC-56
[VDC/TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
2006 Pathfinder
ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On
EFS0065S
1.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) FUSES
Check 40A fusible link n and 30A fusible link l for ABS actuator and electric unit (control unit). For fusible link
layout, refer to
PG-4, "POWER SUPPLY ROUTING CIRCUIT"
OK or NG
OK
>> GO TO 2.
NG
>> If fusible link is blown, be sure to eliminate cause of problem before replacing.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUITS
1.
Disconnect ABS actuator and electric unit (control unit) connec-
tor.
2.
Check voltage between ABS actuator and electric unit (control
unit) connector terminal 1 and ground and terminal 32 and
ground.
Does battery voltage exist?
YES
>> GO TO 3.
NO
>> Repair harness or connectors between fusible link and
ABS actuator and electric unit (control unit).
3.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) connector terminal 16 and ground and terminal 47 and ground.
Does continuity exist?
YES
>> Replace ABS actuator and electric unit (control unit).
Refer to
BRC-62, "Removal and Installation"
NO
>> Repair harness or connectors between ABS actuator
and electric unit (control unit) and ground.
ABS Warning Lamp Stays On When Ignition Switch Is Turned On
EFS0065T
1.
CARRY OUT SELF-DIAGNOSIS
Carry out self-diagnosis. Refer to
.
Are malfunctions detected in self-diagnosis?
YES
>> Refer to
.
NO
>> Refer to
.
WFIA0199E
WFIA0196E
TROUBLE DIAGNOSES FOR SYMPTOMS
BRC-57
[VDC/TCS/ABS]
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BRC
2006 Pathfinder
Vehicle Jerks During TCS/VDC Activation
EFS0065U
1.
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis result items displayed?
YES
>> After checking and repairing the applicable item, perform the ABS actuator and electric unit (con-
trol unit) self-diagnosis again.
NO
>> GO TO 2.
2.
ENGINE SPEED SIGNAL INSPECTION
Perform data monitor with CONSULT-II for the ABS actuator and electric unit (control unit).
Is the engine speed at idle 400 rpm or higher?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
ECM SELF-DIAGNOSIS
Perform ECM self-diagnosis.
Are self-diagnosis result items displayed?
YES
>> After checking and repairing the applicable item, perform the ECM self-diagnosis again.
NO
>> GO TO 4.
4.
TCM SELF-DIAGNOSIS
Perform TCM self-diagnosis.
Are self-diagnosis result items displayed?
YES
>> After checking and repairing the applicable item, perform the TCM self-diagnosis again.
NO
>> GO TO 5.
5.
CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector and the ECM connectors and check the
terminals for deformation, disconnection, looseness or damage.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace as necessary.
6.
CAN COMMUNICATION INSPECTION
Check the CAN communication system. Refer to
BRC-51, "CAN Communication System Inspection"
OK or NG
OK
>> Inspection End.
NG
BRC-58
[VDC/TCS/ABS]
ON-VEHICLE SERVICE
2006 Pathfinder
ON-VEHICLE SERVICE
PFP:00000
Adjustment of Steering Angle Sensor Neutral Position
EFS0065V
After removing/installing or replacing ABS actuator and electric unit (control unit), steering angle sensor, steer-
ing and suspension components which affect wheel alignment or after adjusting wheel alignment, be sure to
adjust neutral position of steering angle sensor before running vehicle.
WITH CONSULT-II
1.
Stop vehicle with front wheels in straight-ahead position.
2.
Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector on vehicle, and turn ignition switch ON (do not
start engine).
3.
Touch “START (NISSAN BASED VHCL)”, “ABS”, “WORK SUP-
PORT” and “ST ANGLE SENSOR ADJUSTMENT” on CON-
SULT-II screen in this order.
4.
Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5.
After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6.
Turn ignition switch OFF, then turn it ON again.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
7.
Run vehicle with front wheels in straight-ahead position, then
stop.
8.
Select “DATA MONITOR”, “SELECTION FROM MENU”, and “STR ANGLE SIG” on CONSULT-II screen.
Then check that “STR ANGLE SIG” is within 0
±
3.5 deg. If value is more than specification, repeat steps 3
to 7.
9.
Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch to OFF.
WITHOUT CONSULT-II
Set the steering wheel in a straight forward position and drive the vehicle at 10 mph (15 km/h) or more for 10
minutes. When the procedure is complete, the SLIP indicator lamp and VDC OFF indicator lamp will turn off.
Calibration of Decel G Sensor
EFS0065W
After removing/installing or replacing ABS actuator and electric unit (control unit), yaw rate/side/decel G sen-
sor, steering and suspension components which affect wheel alignment or after adjusting wheel alignment, be
sure to calibrate the decel G sensor before running vehicle.
NOTE:
Calibration of decel G sensor requires CONSULT-II.
1.
Stop vehicle with front wheels in straight-ahead position.
CAUTION:
●
The work should be done on a level area with an unloaded vehicle.
●
Keep all the tires inflated to the correct pressures. Adjust the tire pressure to the specified pres-
sure value.
2.
Connect CONSULT-II with CONSULT-II CONVERTER to data link connector on vehicle, and turn ignition
switch ON (do not start engine).
BBIA0538E
WFIA0239E
ON-VEHICLE SERVICE
BRC-59
[VDC/TCS/ABS]
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BRC
2006 Pathfinder
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
3.
Touch “START (NISSAN BASED VHCL)”, "ABS", "WORK SUPPORT" and "DECEL G SEN CALIBRA-
TION" on CONSULT-II screen in this order. Refer to
BRC-29, "CONSULT-II BASIC OPERATION PROCE-
4.
Touch "START".
CAUTION:
Set vehicle as shown in the display.
5.
After approximately 10 seconds, touch "END". (After approxi-
mately 60 seconds, it ends automatically.)
6.
Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to carry out above operation.
7.
Run vehicle with front wheels in straight-ahead position, then
stop.
8.
Select "DATA MONITOR", "SELECTION FROM MENU", and
"DECEL G SEN" on CONSULT-II screen. Then check that "DECEL G SEN" is within
±
0.08G. If value is
more than specification, repeat steps 3 to 7.
9.
Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch to OFF.
SFIA1162E
BRC-60
[VDC/TCS/ABS]
WHEEL SENSORS
2006 Pathfinder
WHEEL SENSORS
PFP:47910
Removal and Installation
EFS0065X
REMOVAL
1.
Remove wheel and tire using power tool.
2.
Remove wheel sensor mounting screw.
NOTE:
●
When removing front wheel sensor, first remove the disc rotor to gain access to the front wheel sensor
mounting bolt. Refer to
BR-25, "Removal and Installation of Brake Caliper and Disc Rotor"
●
When removing rear wheel sensor, first remove spare tire.
3.
Pull out the wheel sensor, being careful to turn it as little as possible.
CAUTION:
●
Be careful not to damage sensor edge and sensor rotor teeth.
●
Do not pull on the sensor harness.
4.
Disconnect wheel sensor harness electrical connector, then remove harness from mounts.
INSTALLATION
Installation is in the reverse order of removal. When installing wheel and tire, refer to
CAUTION:
●
Inspect wheel sensor O-ring, replace sensor assembly if damaged.
●
Clean wheel sensor hole and mounting surface with brake cleaner and a lint-free shop rag. Be
careful that dirt and debris do not enter the axle.
NOTE:
●
Apply a coat of suitable grease to the wheel sensor O-ring and mounting hole.
●
Tighten wheel sensor bolt to specification.
WFIA0333E
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