Nissan Altima L32. Manual

WCS-122

< SYMPTOM DIAGNOSIS >

THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND

THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT
SOUND

Description

INFOID:0000000004204255

• Seat belt warning does not sound even though driver seat belt is not fastened.

• Seat belt warning sounds even though driver seat belt is fastened.

Diagnosis Procedure

INFOID:0000000004204256

CHECK WARNING CHIME OPERATION

With the driver door open, turn lighting switch to 1st or 2nd position.
Does warning chime sound?

YES

>> GO TO 2

>> Replace combination meter. Refer to

MWI-176, "Removal and Installation"

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 BCM. Refer to

BCS-96, "Removal and Installation"

>> GO TO 3

CHECK SEAT BELT BUCKLE SWITCH CIRCUIT

Perform inspection of the seat belt buckle switch circuit. Refer to

WCS-20, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 4

>> Repair or replace harness.

CHECK SEAT BELT BUCKLE SWITCH UNIT

Perform a unit inspection for the seat belt buckle switch. Refer to

WCS-21, "Component Inspection"

Is the inspection result normal?

YES

>> Replace the combination meter. Refer to

MWI-176, "Removal and Installation"

>> Replace the seat belt buckle switch LH.

Seat belt fastened

: OFF

Seat belt not fastened

: ON

WCS

PRECAUTIONS

WCS-123

< PRECAUTION >

PRECAUTION

PRECAUTIONS

Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSION-
ER"

INFOID:0000000004204257

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

WT-1

SUSPENSION

SECTION

CONTENTS

ROAD WHEELS & TIRES

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

DIAGNOSIS AND REPAIR WORKFLOW ..........

Repair Work Flow ......................................................

INSPECTION AND ADJUSTMENT .....................

Preliminary Check .....................................................

Transmitter Wake Up Operation ...............................

ID Registration Procedure .........................................

FUNCTION DIAGNOSIS ...............................

TPMS ...................................................................

System Diagram ........................................................

System Description ...................................................

System Components ...............................................

DIAGNOSIS SYSTEM (BCM) ............................

CONSULT-III Function (BCM) .................................

Self-Diagnosis (Without CONSULT-III) ...................

COMPONENT DIAGNOSIS .........................

C1708 - C1711 DATA FROM TRANSMITTER
NOT BEING RECEIVED .....................................

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

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

Diagnosis Procedure ...............................................

Special Repair Requirement ...................................

C1712 - C1715, C1720 - C1723, C1724 -
C1727 TRANSMITTER MALFUNCTION ...........

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

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

Diagnosis Procedure ...............................................

Special Repair Requirement ...................................

C1716 - C1719 TRANSMITTER PRESSURE
MALFUNCTION ..................................................

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

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

Diagnosis Procedure ...............................................

Special Repair Requirement ....................................

C1729 VEHICLE SPEED SIGNAL ....................

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

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

Diagnosis Procedure ...............................................

Special Repair Requirement ....................................

C1734 CONTROL UNIT ....................................

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

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

Diagnosis Procedure ...............................................

Special Repair Requirement ....................................

ECU DIAGNOSIS .........................................

BCM (BODY CONTROL MODULE) .................

Reference Value ......................................................

Terminal Layout .......................................................

Physical Values .......................................................

Wiring Diagram - TIRE PRESSURE MONITOR-
ING SYSTEM - Coupe .............................................

Wiring Diagram - TIRE PRESSURE MONITOR-
ING SYSTEM - Sedan .............................................

Self-Diagnosis (With CONSULT-III) ........................

Self-Diagnosis (Without CONSULT-III) ...................

SYMPTOM DIAGNOSIS ..............................

TPMS .................................................................

Symptom Table .......................................................

LOW TIRE PRESSURE WARNING LAMP
DOES NOT TURN ON .......................................

Low Tire Pressure Warning Lamp Does Not Come
On When Ignition Switch Is Turned On ...................

LOW TIRE PRESSURE WARNING LAMP
STAYS ON ........................................................

Low Tire Pressure Warning Lamp Stays On When
Ignition Switch Is Turned On ...................................

Nissan Altima L32. Manual - part 1564