Nissan Sentra. Manual - part 924

WCS

THE SEAT BELT REMINDER WARNING CONTINUES SOUNDING, OR DOES 

NOT SOUND

WCS-33

< SYMPTOM DIAGNOSIS >

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THE SEAT BELT REMINDER WARNING CONTINUES SOUNDING, OR
DOES NOT SOUND

Description

INFOID:0000000009759254

• Seat belt reminder warning does not sound.

• Seat belt reminder warning sounds continuously.

Diagnosis Procedure

INFOID:0000000009759255

1.

CHECK SEAT BELT WARNING LAMP

1. Turn ignition switch ON.

2. Check the operation of the seat belt warning lamp in the combination meter.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-77, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK SEAT BELT BUCKLE SWITCH (LH) SIGNAL CIRCUIT  

Check the seat belt buckle switch (LH) circuit. Refer to 

WCS-29, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK SEAT BELT BUCKLE SWITCH (LH)

Check the seat belt buckle switch (LH). Refer to 

WCS-30, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-77, "Removal and Installation"

.

NO

>> Replace seat belt buckle (LH). Refer to 

SR-32, "Removal and Installation"

.

Combination meter

Condition

Status

Seat belt warning lamp

When seat belt LH (driver seat) is fastened

OFF

When seat belt LH (driver seat) is unfastened

ON

WCS-34

< SYMPTOM DIAGNOSIS >

THE LIGHT REMINDER WARNING DOES NOT SOUND

THE LIGHT REMINDER WARNING DOES NOT SOUND

Description

INFOID:0000000009759256

Light reminder warning chime does not sound even though headlamp is illuminated.

Diagnosis Procedure

INFOID:0000000009759257

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-77, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK FRONT DOOR SWITCH LH SIGNAL CIRCUIT

Check the front door switch LH signal circuit. Refer to 

DLK-102, "Diagnosis Procedure"

 (with Intelligent Key

system) or 

DLK-253, "Diagnosis Procedure"

 (without Intelligent Key system).

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK FRONT DOOR SWITCH LH

Check front door switch LH. Refer to 

DLK-103, "Component Inspection"

 (with Intelligent Key system) or 

DLK-

255, "Component Inspection"

 (without Intelligent Key system).

Is the inspection result normal?

YES

>> Replace the BCM. Refer to 

BCS-73, "Removal and Installation"

 (with Intelligent Key system) or

BCS-126, "Removal and Installation"

 (without Intelligent Key system).

NO

>> Replace the front door switch LH. Refer to 

DLK-194, "Removal and Installation"

 (with Intelligent

Key system) or 

DLK-341, "Removal and Installation"

 (without Intelligent Key system).

Monitor Item

Condition

Status

BUZZER

Under the condition of buzzer input

ON

Except above

OFF

WCS

THE KEY WARNING DOES NOT SOUND (WITHOUT INTELLIGENT KEY)

WCS-35

< SYMPTOM DIAGNOSIS >

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THE KEY WARNING DOES NOT SOUND (WITHOUT INTELLIGENT KEY)

Description

INFOID:0000000009759258

The key warning chime does not sound, when all of the following conditions are fulfilled.

• Key inserted into the key cylinder (key switch signal ON).

• Ignition switch is in ACC or OFF (ignition switch signal OFF).

• Driver side door is open (driver side door switch ON)

Diagnosis Procedure

INFOID:0000000009759259

1.

CHECK BCM INPUT SIGNAL

1. Connect CONSULT.

2. Select the DATA MONITOR of BCM (BUZZER) and check the KEY ON SW monitor value. Refer to 

BCS-

88, "BUZZER : CONSULT Function (BCM - BUZZER)"

.

Is the inspection result normal?

YES

>> Replace the BCM. Refer to 

BCS-73, "Removal and Installation"

 (with Intelligent Key system) or

BCS-126, "Removal and Installation"

 (without Intelligent Key system).

NO

>> GO TO 2.

2.

CHECK KEY SWITCH SIGNAL CIRCUIT

Check the key switch signal circuit. Refer to 

DLK-262, "Diagnosis Procedure"

. 

Is the inspection result normal?

YES

>> Replace the BCM. Refer to 

BCS-73, "Removal and Installation"

 (with Intelligent Key system) or

BCS-126, "Removal and Installation"

 (without Intelligent Key system).

NO

>> Check applicable parts, and repair or replace corresponding parts.

WT-1

SUSPENSION

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SECTION 

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CONTENTS

ROAD WHEELS & TIRES

PRECAUTION ...............................................

3

PRECAUTIONS ...................................................

3

Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................

3

Service Notice and Precautions for TPMS ................

3

Service Notice and Precautions for Road Wheel ......

3

PREPARATION ............................................

5

PREPARATION ...................................................

5

Special Service Tool  .................................................

5

Commercial Service Tool  ..........................................

5

SYSTEM DESCRIPTION  ..............................

6

COMPONENT PARTS  ........................................

6

Component Parts Location ........................................

6

Component Description .............................................

6

BCM ..........................................................................

6

Remote Keyless Entry Receiver  ...............................

6

Transmitter ................................................................

7

Low Tire Pressure Warning Lamp .............................

7

Combination Meter ....................................................

7

SYSTEM ..............................................................

8

TIRE PRESSURE MONITORING SYSTEM  ................

8

TIRE PRESSURE MONITORING SYSTEM : Sys-
tem Diagram ..............................................................

8

TIRE PRESSURE MONITORING SYSTEM : Sys-
tem Description  .........................................................

8

TIRE PRESSURE MONITORING SYSTEM : 
Easy Fill Tire Alert Function  ......................................

8

DIAGNOSIS SYSTEM (BCM) (WITH INTELLI-
GENT KEY SYSTEM) .........................................

10

COMMON ITEM .........................................................

10

COMMON ITEM : CONSULT Function (BCM - 
COMMON ITEM) .....................................................

10

AIR PRESSURE MONITOR .......................................

11

AIR PRESSURE MONITOR : CONSULT Function 
(BCM - AIR PRESSURE MONITOR)  ......................

11

DIAGNOSIS SYSTEM (BCM) (WITHOUT IN-
TELLIGENT KEY SYSTEM)  .............................

12

COMMON ITEM  .........................................................

12

COMMON ITEM : CONSULT Function (BCM - 
COMMON ITEM)  .....................................................

12

AIR PRESSURE MONITOR .......................................

13

AIR PRESSURE MONITOR : CONSULT Function 
(BCM - AIR PRESSURE MONITOR)  ......................

13

ECU DIAGNOSIS INFORMATION ..............

14

BCM ...................................................................

14

List of ECU Reference .............................................

14

WIRING DIAGRAM ......................................

15

TIRE PRESSURE MONITORING SYSTEM ......

15

WITH INTELLIGENT KEY  .........................................

15

WITH INTELLIGENT KEY : Wiring Diagram  ...........

15

WITHOUT INTELLIGENT KEY ..................................

17

WITHOUT INTELLIGENT KEY : Wiring Diagram ....

18

BASIC INSPECTION  ...................................

21

DIAGNOSIS AND REPAIR WORK FLOW  .......

21

Work Flow ................................................................

21

ID REGISTRATION PROCEDURE  ...................

22

Description ...............................................................

22

Work Procedure .......................................................

22

DTC/CIRCUIT DIAGNOSIS  .........................

25

C1704, C1705, C1706, C1707 LOW TIRE 
PRESSURE .......................................................

25

DTC Logic ................................................................

25