Nissan Pathfinder (2007 year). Manual - part 129

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

BRC-117

[HDC/HSA/VDC/TCS/ABS]

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BRC

2007 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 

BRC-126, "Adjustment of

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-132, "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-126, "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-133, "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-130, "Removal and Installa-

tion"

 .

NO

>> Replace combination meter. Refer to 

IP-14, "COMBINATION METER"

 .

Self-diagnosis results

ST ANGLE SEN SIGNAL

Self-diagnosis results

DECEL G SEN SET

BRC-118

[HDC/HSA/VDC/TCS/ABS]

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

2007 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-119

[HDC/HSA/VDC/TCS/ABS]

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BRC

2007 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 

BRC-92, "SELF-DIAGNOSIS"

 .

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 

BRC-86, "Basic Inspection"

 .

Is brake fluid pressure distribution normal?

YES

>> Inspection End.

NO

>> Perform Basic Inspection. Refer to 

BRC-86, "Basic Inspection"

 .

BRC-120

[HDC/HSA/VDC/TCS/ABS]

TROUBLE DIAGNOSES FOR SYMPTOMS

2007 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 

BRC-92, "SELF-DIAGNOSIS"

 .

2. 

CHECK BRAKE PEDAL STROKE

Check brake pedal stroke.

Is pedal stroke excessive?

YES

>> Perform Basic Inspection. Refer to 

BRC-86, "Basic

Inspection"

 .

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 

LAN-

7, "TROUBLE DIAGNOSIS"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Perform Basic Inspection. Refer to 

BRC-86, "Basic Inspection"

 .

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-121

[HDC/HSA/VDC/TCS/ABS]

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BRC

2007 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 

LAN-

7, "TROUBLE DIAGNOSIS"

 .

OK or NG

OK

>> Go to 

BRC-119, "ABS Works Frequently"

 .

NG

>> Perform Basic Inspection. Refer to 

BRC-86, "Basic Inspection"

 .

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 

BRC-92, "SELF-DIAGNOSIS"

 .

NG

>> Go to 

BRC-122, "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 

BRC-92, "SELF-DIAGNOSIS"

 .

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-119, "ABS Works Frequently"

 .

BRC-122

[HDC/HSA/VDC/TCS/ABS]

TROUBLE DIAGNOSES FOR SYMPTOMS

2007 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-130, "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 

BRC-92, "SELF-DIAGNOSIS"

 .

Are malfunctions detected in self-diagnosis?

YES

>> Refer to 

BRC-93, "Display Item List"

 .

NO

>> Refer to 

DI-30, "WARNING LAMPS"

 .

WFIA0199E

WFIA0196E

TROUBLE DIAGNOSES FOR SYMPTOMS

BRC-123

[HDC/HSA/VDC/TCS/ABS]

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BRC

2007 Pathfinder

Vehicle Jerks During TCS/VDC Activation

EFS0067I

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-116, "CAN Communication System Inspection"

 .

OK or NG

OK

>> Inspection End.

NG

>> Refer to 

LAN-7, "TROUBLE DIAGNOSIS"

 .

BRC-124

[HDC/HSA/VDC/TCS/ABS]

TROUBLE DIAGNOSES FOR SYMPTOMS

2007 Pathfinder

Stop Lamp Relay Inspection

EFS0067J

STOP LAMPS TURN ON THOUGH HDC DOES NOT FUNCTION

1. 

INSPECTION OF STOP LAMP RELAY

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp relay connector E12.

3.

Check continuity between stop lamp relay terminals 3 and 5.

OK or NG

OK

>> GO TO 2.

NG

>> Replace stop lamp relay.

2. 

INSPECTION OF STOP LAMP RELAY CIRCUIT

1.

Disconnect ABS actuator and electric unit (control unit) connec-
tor E125.

2.

Check continuity between ABS actuator and electric unit (control
unit) connector E125 terminal 13 and ground.

OK or NG

OK

>> Replace ABS actuator and electric unit (control unit).

Refer to 

BRC-130, "Removal and Installation"

 .

NG

>> Repair or replace harness or connector.

STOP LAMPS DO NOT TURN ON THOUGH HDC FUNCTIONS

1. 

INSPECTION OF STOP LAMP RELAY

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp relay connector E12.

3.

Check continuity between stop lamp relay terminals 3 and 5.

OK or NG

OK

>> Repair the stop lamp circuit.

NG

>> Replace stop lamp relay.

HDC Switch Inspection

EFS0067K

1. 

HDC SWITCH INSPECTION

Check if the HDC indicator lamp in the combination meter turns on or flashes when pressing HDC switch.

OK or NG

OK

>> Inspection End.

NG

>> GO TO 2.

Condition

Continuity

12V direct current supply between
 terminals 1 and 2

Yes

No current supply

No

SEF145X

Continuity should not exist.

WFIA0353E

Condition

Continuity

12V direct current supply between
 terminals 1 and 2

Yes

No current supply

No

SEF145X