Nissan Altima HL32 Hybrid. Manual - part 1091

WCS-18

< COMPONENT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

BCM (BODY CONTROL MODULE) : Diagnosis Procedure

INFOID:0000000004491004

1.

 CHECK FUSE AND FUSIBLE LINK

Check if the following BCM fuse or fusible link are blown.

Is the fuse or fusible link blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check voltage between BCM harness connector and ground.

Is the measurement normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

BCM (BODY CONTROL MODULE) : Special Repair Requirement

INFOID:0000000004491005

1.

 REQUIRED WORK WHEN REPLACING BCM

Initialize control unit. Refer to CONSULT-III operation manual.

>> Work End.

Terminal No.

Signal name

Fuse and fusible link No.

1

Battery power supply

J

11

10

Terminals

Voltage

(Approx.)

(+)

(

−)

BCM

Ground

Connector

Terminal

M16

1

Battery voltage

M17

11

ALCIA0025ZZ

BCM

Ground

Continuity

Connector

Terminal

M17

13

Yes

ALCIA0024ZZ

WCS

METER BUZZER CIRCUIT

WCS-19

< COMPONENT DIAGNOSIS >

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METER BUZZER CIRCUIT

Description

INFOID:0000000004219364

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

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

Component Function Check

INFOID:0000000004219365

1.

CHECK OPERATION OF METER BUZZER

1. Select “BUZZER” of “BCM” on CONSULT-III.

2. Perform “LIGHT WARN ALM” of “ACTIVE TEST”.
Does meter buzzer activate?

YES

>> Inspection End.

NO

>> Replace combination meter. Refer to 

MWI-135, "Removal and Installation"

.

Diagnosis Procedure

INFOID:0000000004219366

1.

CHECK POWER SUPPLY OF COMBINATION METER

Check power supply of combination meter. Refer to 

MWI-40, "COMBINATION METER : Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair power supply circuit of combination meter.

WCS-20

< COMPONENT DIAGNOSIS >

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

Description

INFOID:0000000004219367

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

Component Function Check

INFOID:0000000004219368

1.

CHECK COMBINATION METER INPUT SIGNAL

Select “DATA MONITOR” for “METER/M&A” and check the “BELT SW” monitor value.

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004219369

1.

CHECK COMBINATION METER INPUT SIGNAL

1. Turn ignition switch ON.

2. Check voltage between combination meter harness connector

M24 terminal 35 and ground.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-135,

"Removal and Installation"

.

NO

>> GO TO 2

2.

CHECK SEAT BELT BUCKLE SWITCH CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect combination meter connector and seat belt buckle

switch LH connector.

3. Check continuity between combination meter harness connector

M24 terminal 35 and seat belt buckle switch LH harness con-

nector B202 terminal 1.

4. Check harness continuity between combination meter harness

connector M24 terminal 35 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair harness or connector.

3.

CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT

BELT SW
When seat belt is fastened

: OFF

When seat belt is unfastened : ON

35 - Ground
When driver seat belt is fastened

: Approx. 12V

When driver seat belt is unfastened : Approx. 0V

AWNIA0085ZZ

35 - 1

: Continuity should exist.

35 - Ground

: Continuity should not exist.

AWNIA0086ZZ

WCS

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT

WCS-21

< COMPONENT DIAGNOSIS >

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Check harness continuity between seat belt buckle switch LH har-

ness connector B202 terminal 2 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000004219370

1.

CHECK SEAT BELT BUCKLE SWITCH

1. Turn ignition switch OFF.

2. Disconnect the seat belt buckle switch connector.

3. Check continuity between terminals 1 and 2.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace the seat belt buckle switch LH.

2 - Ground

: Continuity should exist.

AWNIA0087ZZ

1– 2
When seat belt is 
fastened

: Continuity should not exist.

When seat belt is 
unfastened

: Continuity should exist.

WKIA1143E