Nissan Pathfinder. Manual - part 261

PARKING BRAKE SWITCH

BRC-103

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

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PARKING BRAKE SWITCH

Description

INFOID:0000000009177319

Transmits the parking brake switch signal to the combination meter.

Component Function Check

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1.

COMBINATION METER INPUT SIGNAL

1. Start engine.

2. Monitor BRAKE W/L in DATA MONITOR while applying and releasing the parking brake.

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009177321

Regarding Wiring Diagram information, refer to 

MWI-31, "Wiring Diagram"

.

1.

CHECK PARKING BRAKE SWITCH CIRCUIT

1. Disconnect combination meter harness connector M24 and parking brake switch harness connector E52.

2. Check continuity between combination meter harness connector M24 terminal 12 and parking brake

switch harness connector E52 terminal 1.

3. Check continuity between combination meter harness connector M24 terminal 12 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

Component Inspection

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1.

CHECK PARKING BRAKE SWITCH

Check continuity between parking brake switch terminal 1 and switch case ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace parking brake switch. Refer to 

PB-7, "Exploded View"

.

Condition

CONSULT

Parking brake applied

: ON

Parking brake released

: OFF

Combination meter

Parking brake switch

Continuity

Connector

Terminal

Connector

Terminal

M24

12

E52

1

Yes

Combination meter

Ground

Continuity

Connector

Terminal

M24

12

No

Component

Terminal

Condition

Continuity

Parking brake switch

1

Parking brake applied

Yes

Parking brake released

No

BRC-104

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

VDC OFF SWITCH

VDC OFF SWITCH

Component Function Check

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1.

CHECK VDC OFF SWITCH OPERATION

Check that VDC OFF indicator lamp in combination meter turns ON/OFF when VDC OFF switch is operated.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> Proceed to diagnosis procedure. Refer to 

BRC-104, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009177324

Regarding Wiring Diagram information, refer to 

BRC-44, "Wiring Diagram"

.

1.

CONNECTOR INSPECTION

1. Turn ignition switch OFF.

2. Disconnect ABS actuator and electric unit (control unit) connector E125 and VDC OFF switch connector

M71.

3. Check connectors and terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace as necessary.

2.

CHECK VDC OFF SWITCH

Check VDC OFF switch. Refer to 

BRC-105, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace VDC OFF switch.

3.

CHECK VDC OFF SWITCH SIGNAL

With CONSULT.

1. Connect ABS actuator and electric unit (control unit) connector E125 and VDC OFF switch connector

M71.

2. Turn ignition switch ON.

3. In “DATA MONITOR” select “OFF SW” and check VDC OFF switch signal.

Is the inspection result normal?

YES

>> Refer to 

BRC-52, "Work Flow"

.

NO

>> GO TO 4.

4.

CHECK VDC OFF SWITCH CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ABS actuator and electric unit (control unit) connector E125 and VDC OFF switch connector

M71.

3. Check continuity between ABS actuator and electric unit (control unit) connector E125 terminal 30 and

VDC OFF switch connector M71 terminal 1.

Condition

DATA MONITOR

VDC OFF switch is pressed and released

On

VDC OFF switch is pressed and released again

Off

ABS actuator and electric unit (control unit)

VDC OFF switch

Continuity

Connector

Terminal

Connector

Terminal

E125

30

M71

1

Yes

VDC OFF SWITCH

BRC-105

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

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

30 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace malfunctioning components.

5.

CHECK VDC OFF SWITCH GROUND CIRCUIT

Check continuity between VDC OFF switch connector M71 terminal 2 and ground.

Is the inspection result normal?

YES

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

BRC-123, "Removal and Installa-

tion"

.

NO

>> Repair or replace malfunctioning components.

Component Inspection

INFOID:0000000009177325

1.

CHECK VDC OFF SWITCH

1. Turn ignition switch OFF.

2. Disconnect VDC OFF switch connector.

3. Check continuity between terminals of VDC OFF switch connector.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace VDC OFF switch.

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E125

30

Ground

No

VDC OFF switch

—

Continuity

Connector

Terminal

M71

2

Ground

Yes

VDC OFF switch terminals

Condition

Continuity

1 – 2

VDC OFF switch pressed

Yes

VDC OFF switch released

No

BRC-106

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

ABS WARNING LAMP

ABS WARNING LAMP

Component Function Check

INFOID:0000000009177326

1.

CHECK ABS WARNING LAMP FUNCTION

Check that ABS warning lamp in combination meter turns ON for approximately 2 seconds after ignition switch

is turned ON.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> Proceed to diagnosis procedure. Refer to 

BRC-106, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009177327

1.

PERFORM THE SELF-DIAGNOSIS

With CONSULT.

Perform self-diagnostic result.
Are any DTCs detected?

YES

>> Refer to 

BRC-42, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK COMBINATION METER

Check if indication and operation of combination meter are normal. Refer to 

MWI-9, "METER SYSTEM : Sys-

tem Description"

.

Is the inspection result normal?

YES

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

BRC-123, "Removal and Installa-

tion"

.

NO

>> Replace combination meter. Refer to 

MWI-82, "Removal and Installation"

.