Nissan Pathfinder (2006 year). Instruction — part 129
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-117
[HDC/HSA/VDC/TCS/ABS]
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BRC
2006 Pathfinder
2.
CONNECTOR INSPECTION
1.
Turn the ignition switch OFF.
2.
Disconnect the rear pressure sensor connector E32 and ABS actuator and electric unit (control unit) con-
nector E125 and inspect the terminals for deformation, disconnection, looseness, or damage.
OK or NG
OK
>> GO TO 3.
NG
>> Repair connector.
3.
REAR PRESSURE SENSOR CIRCUIT INSPECTION
1.
Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125
and rear pressure sensor harness connector E32.
2.
Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125
and body ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness or connector.
4.
REAR PRESSURE SENSOR INSPECTION
1.
Reconnect the rear pressure sensor and ABS actuator and electric unit (control unit) connectors.
2.
Use "DATA MONITOR" to check if the status of "PRESS SEN 2" is normal.
OK or NG
OK
>> Inspection End.
NG
>> Replace rear pressure sensor.
ABS actuator and electric unit (con-
trol unit) harness connector E125
Rear pressure sensor harness
connector E32
Continuity
21
1
Yes
22
3
23
2
ABS actuator and electric unit (con-
trol unit) harness connector E125
Body ground
Continuity
21
—
No
22
23
Condition
Data monitor display (Approx.)
PRESS SEN 2
When brake pedal is depressed
Positive value
When brake pedal is released
0 bar
BRC-118
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2006 Pathfinder
Steering Angle Sensor Safe Mode Inspection
EFS00675
INSPECTION PROCEDURE
1.
INDICATOR LAMP CHECK
Check that VDC OFF indicator lamp is on.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 3.
2.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Adjust steering angle sensor neutral position. Refer to
BRC-128, "Adjustment of Steering Angle Sensor Neu-
OK or NG
OK
>> GO TO 3.
NG
>> Check steering angle sensor. Refer to
BRC-105, "Steering Angle Sensor System"
3.
INDICATOR LAMP CHECK
Check that VDC OFF indicator lamp is off.
OK or NG
OK
>> GO TO 4.
NG
>> Perform basic inspection. Refer to
.
4.
CHECK SELF-DIAGNOSTIC RESULTS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
NOTE:
When self-diagnostic results show items other than those above, perform repair or replacement for the item
indicated and repeat self-diagnosis.
Is the above displayed on self-diagnosis display?
YES
>> Erase error memory.
NO
>> Inspection End.
CAN Communication System Inspection
EFS00676
INSPECTION PROCEDURE
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) connector, and check
the terminals for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or
replace the terminal.
2.
Reconnect connector to perform self-diagnosis.
Is "CAN COMM CIRCUIT" displayed in self-diagnosis display items?
YES
>> Print out the self-diagnostic results, and refer to
NO
>> Connector terminal is loose, damaged, open, or shorted.
Self-diagnosis results
ST ANGL SEN SAFE
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-119
[HDC/HSA/VDC/TCS/ABS]
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BRC
2006 Pathfinder
Inspection For Self-diagnosis Result "ST ANGLE SEN SIGNAL"
EFS00677
INSPECTION PROCEDURE
1.
PERFORM SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Do self-diagnosis results indicate anything other than shown above?
YES
>> Perform repair or replacement for the item indicated.
NO
>> Perform adjustment of steering angle sensor neutral position. Refer to
Steering Angle Sensor Neutral Position"
. GO TO 2.
2.
PERFORM SELF-DIAGNOSIS AGAIN
1.
Turn the ignition switch to OFF and then to ON and erase self-diagnosis results.
2.
Perform ABS actuator and electric unit (control unit) self-diagnosis again.
Are any self-diagnosis results displayed?
YES
>> Replace steering angle sensor. Refer to
BRC-134, "Removal and Installation"
NO
>> Inspection End.
Inspection For Self-diagnosis Result "DECEL G SEN SET"
EFS00678
INSPECTION PROCEDURE
1.
PERFORM SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Do self-diagnosis results indicate anything other than shown above?
YES
>> Perform repair or replacement for the item indicated.
NO
>> Perform calibration of decel G sensor. Refer to
BRC-128, "Calibration of Decel G Sensor"
. GO
TO 2.
2.
PERFORM SELF-DIAGNOSIS AGAIN
1.
Turn the ignition switch to OFF and then to ON and erase self-diagnosis results.
2.
Perform ABS actuator and electric unit (control unit) self-diagnosis again.
Are any self-diagnosis results displayed?
YES
>> Replace yaw rate/side/decel G sensor. Refer to
BRC-135, "Removal and Installation"
NO
>> Inspection End.
VDC OFF Indicator lamp Does Not Illuminate
EFS00679
INSPECTION PROCEDURE
1.
CHECK VDC OFF INDICATOR LAMP
Disconnect ABS actuator and electric unit (control unit) connector E125.
Do the ABS warning lamp and VDC OFF indicator lamp illuminate?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-132, "Removal and Installa-
NO
>> Replace combination meter. Refer to
Self-diagnosis results
ST ANGLE SEN SIGNAL
Self-diagnosis results
DECEL G SEN SET
BRC-120
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2006 Pathfinder
Component Inspection
EFS0067A
VDC OFF SWITCH
Check the continuity between terminals 1 and 2.
HDS SWITCH
Check the continuity between terminals 1 and 2.
1 - 2
: Continuity should exist when pushing the
switch.
Continuity should not exist when releasing
the switch.
PFIA0307E
1 - 2
: Continuity should exist when pushing the
switch.
Continuity should not exist when releasing
the switch.
WFIA0327E
TROUBLE DIAGNOSES FOR SYMPTOMS
BRC-121
[HDC/HSA/VDC/TCS/ABS]
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BRC
2006 Pathfinder
TROUBLE DIAGNOSES FOR SYMPTOMS
PFP:99999
ABS Works Frequently
EFS0067B
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-122
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
2006 Pathfinder
Unexpected Pedal Action
EFS0067C
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-123
[HDC/HSA/VDC/TCS/ABS]
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BRC
2006 Pathfinder
Long Stopping Distance
EFS0067D
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-121, "ABS Works Frequently"
NG
>> Perform Basic Inspection. Refer to
ABS Does Not Work
EFS0067E
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-124, "ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On"
Pedal Vibration or ABS Operation Noise
EFS0067F
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-124
[HDC/HSA/VDC/TCS/ABS]
TROUBLE DIAGNOSES FOR SYMPTOMS
2006 Pathfinder
ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On
EFS0067G
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-132, "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
EFS0067H
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
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