Nissan Pathfinder. Manual - part 1203

WCS

METER BUZZER CIRCUIT

WCS-29

< DTC/CIRCUIT DIAGNOSIS >

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METER BUZZER CIRCUIT

Description

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• The buzzer for the warning chime system is installed in the combination meter.

• The combination meter sounds the buzzer based on the signals transmitted from various units.

Component Function Check

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1.

 CHECK OPERATION OF METER BUZZER

1. Select BUZZER of BCM on CONSULT.

2. Perform LIGHT WARN ALM or SEAT BELT WARN TEST of ACTIVE TEST.
Does meter buzzer activate?

YES

>> Inspection End.

NO

>> Refer to 

WCS-29, "Diagnosis Procedure"

.

Diagnosis Procedure

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1.

CHECK COMBINATION METER INPUT SIGNAL

Select the Data Monitor  for the METER/M&A and check the BUZZER monitor value.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-82, "Removal and Installation"

.

NO

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

BUZZER
Under the condition of buzzer input

: On

Except above

: Off

WCS-30

< DTC/CIRCUIT DIAGNOSIS >

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

Description

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Transmits a seat belt buckle switch signal to the combination meter.

Component Function Check

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1.

 CHECK COMBINATION METER INPUT SIGNAL

1. Ignition ON.

2. Monitor seat belt warning lamp while fastening and unfastening the driver seat belt buckle.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Refer to 

WCS-30, "Diagnosis Procedure"

.

Diagnosis Procedure

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Regarding Wiring Diagram information, refer to 

WCS-17, "Wiring Diagram"

.

1.

 CHECK COMBINATION METER INPUT SIGNAL

1. Turn ignition switch ON.

2. Check voltage between combination meter harness connector M24 terminal 9 and ground.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-82, "Removal and Installation"

.

NO

>> GO TO 2.

2.

 CHECK SEAT BELT BUCKLE SWITCH CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect combination meter harness connector M24 and seat belt buckle switch (driver seat) harness

connector B221.

3. Check continuity between combination meter harness connector M24 terminal 9 and seat belt buckle

switch (driver seat) harness connector B221 terminal 4.

4. Check continuity between combination meter harness connector M24  terminal 9 and ground.

Condition

Warning lamp status

When driver seat belt buckle is unfastened

ON

When driver seat belt buckle is fastened

OFF

Combination meter

Condition

Voltage

(Approx.)

Connector

Terminals

(+)

(-)

M24

9

Ground

When driver seat belt is fastened

12 V

When driver seat belt is unfastened

0 V

Combination meter

Seat belt buckle switch (driver seat)

Continuity

Connector

Terminal

Connector

Terminal

M24

9

B221

4

Yes

WCS

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

WCS-31

< DTC/CIRCUIT DIAGNOSIS >

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Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

 CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT

Check continuity between seat belt buckle switch (driver seat) harness connector B221 terminal 3 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connector.

Component Inspection

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1.

 CHECK SEAT BELT BUCKLE SWITCH

1. Turn ignition switch OFF.

2. Disconnect the seat belt buckle switch (driver seat) connector.

3. Check continuity between the seat belt buckle switch (driver seat) terminals 3 and 4.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace the seat belt buckle switch (driver seat). Refer to 

SR-30, "Removal and Installation"

.

Combination meter

Ground

Continuity

Connector

Terminal

M24

9

No

Seat belt buckle switch (driver seat)

Ground

Continuity

Connector

Terminal

B221

3

Yes

Condition

Terminal

Continuity

When seat belt buckle is fastened

3– 4

No

When seat belt buckle is unfastened

Yes

WCS-32

< SYMPTOM DIAGNOSIS >

WARNING CHIME SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

WARNING CHIME SYSTEM SYMPTOMS

Symptom Table

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CAUTION:

Perform the self-diagnosis with CONSULT before the symptom diagnosis. Perform the trouble diagno-

sis if any DTC is detected.

Symptom

Possible cause

Inspection item

The light reminder warning does not sound.

• Harness between BCM and front 

door switch LH

• Front door switch LH
• BCM
• Combination meter

Refer to 

WCS-33

.

The parking brake release warning continues sounding 
or does not sound.

• Harness between combination 

meter and parking brake switch

• Parking brake switch
• BCM
• Combination meter

Refer to 

WCS-35

.

The seat belt warning continues sounding or does not 
sound.

• Harness between combination 

meter and seat belt buckle switch  
(driver seat)

• Seat belt  buckle switch (driver 

seat)

• BCM
• Combination meter

Refer to 

WCS-34

.

Warning chime does not sound at all.

• BCM
• Combination meter

Refer to 

WCS-29

.