Infiniti M35/M45 Y50. Manual - part 372

WARNING CHIME

DI-71

C

D

E

F

G

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2. 

CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

1.

Select “METER A/C AMP” on CONSULT-II. 

2.

With “DATA MONITOR”, confirm “BUZZER” under the condition
of buzzer input. (Seat belt warning chime, turn signal lamp oper-
ate, etc.)

OK or NG

OK

>> GO TO 3.

NG

>> Replace BCM. Refer to 

BCS-15, "Removal and Installa-

tion of BCM"

 .

3. 

REPLACE COMBINATION METER

Replace combination meter.

Does meter buzzer beep?

YES

>> INSPECTION END

NO

>> Replace unified meter and A/C map.

Lighting Switch Signal Inspection

NKS003V9

1. 

CHECK BCM INPUT SIGNAL

1.

Select “BCM” on CONSULT-II.

2.

With “DATA MONITOR” of “BUZZER”, confirm “TAIL LAMP SW”
when the lighting switch is operated.

OK or NG

OK

>> Lighting switch signal is OK. Return to 

DI-70, "SYMP-

TOM CHART"

 .

NG

>> Check the lighting switch. Refer to 

LT-230, "Switch Cir-

cuit Inspection"

 .

“BUZZER”

Under the condition of buzzer input 

: ON

Except above

: OFF

PKIA2063E

“TAIL LAMP SW”

Lighting switch ON (1st position)

: ON

Lighting switch OFF

: OFF

PKIC0697E

DI-72

WARNING CHIME

Front Door Switch (Driver Side) Signal Inspection

NKS003VA

1. 

CHECK BCM INPUT SIGNAL

With CONSULT-ll

1.

Select “BCM” on CONSULT-II.

2.

With “DATA MONITOR” of “BUZZER”, confirm “DOOR SW-DR”
when the driver side door is opened/closed.

Without CONSULT-ll

Check voltage between BCM harness connector and ground.

OK or NG

OK

>> Front door switch (driver side) signal is OK. Return to

DI-70, "SYMPTOM CHART"

 .

NG

>> GO TO 2.

2. 

CHECK FRONT DOOR SWITCH (DRIVER SIDE) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and front door switch (driver side)
connector.

3.

Check continuity between BCM harness connector (A) and front
door switch (driver side) harness connector (B).

4.

Check continuity between BCM harness connector (A) and
ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK FRONT DOOR SWITCH (DRIVER SIDE)

Check front door switch (driver side). Refer to 

DI-74, "FRONT DOOR SWITCH (DRIVER SIDE)"

 .

OK or NG

OK

>> Replace BCM. Refer to 

BCS-15, "Removal and Installation of BCM"

 .

NG

>> Replace front door switch (driver side).

“DOOR SW-DR”

When driver side door is opened

: ON

When driver side door is closed

: OFF

SEL502W

Terminals

Condition

Voltage 

(Approx.)

(+)

(–)

BCM

connector

Terminal

Driver side door:

M3

62

Ground

Open

0 V

Close

12 V

PKIB7662E

A

B

Continuity

Connector

Terminal

Connector

Terminal

M3

62

 B11

2 

Yes

A

Ground

Continuity

Connector

Terminal

M3

62

No

PKIB7663E

WARNING CHIME

DI-73

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Seat Belt Buckle Switch Signal Inspection

NKS003VB

1. 

CHECK BCM INPUT SIGNAL

1.

Select “BCM” on CONSULT-II.

2.

With “DATA MONITOR” of “BUZZER”, confirm “BUCKLE SW”
when the seat belt is fastened/unfastened.

OK or NG

OK

>> Seat  belt  buckle  switch  signal  is  OK.  Return  to 

DI-70,

"SYMPTOM CHART"

 .

NG

>> GO TO 2.

2. 

CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between unified meter and A/C amp. harness
connector and ground.

OK or NG

OK

>> Replace unified meter and A/C amp.

NG

>> GO TO 3.

3. 

CHECK SEAT BELT BUCKLE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect unified meter and A/C amp. connector and seat belt
buckle switch (driver side) connector.

3.

Check continuity between unified meter and A/C amp. harness
connector (A) and seat belt buckle switch (driver side) harness
connector (B).

4.

Check harness continuity between unified meter and A/C amp.
harness connector (A) and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

“BUCKLE SW”

When seat belt is fastened

: OFF

When seat belt is unfastened

: ON

SKIA8674E

Terminals

Condition

Voltage 

(Approx.)

(+)

(–)

Unified meter and

A/C amp. connector

Terminal

Seat belt

(driver side):

M64

9 Ground

Fasten

12 V

Unfasten

0 V

PKIB7664E

A

B

Continuity

Connector

Terminal

Connector

Terminal

M64

9

 B203

1

Yes

A

Ground

Continuity

Connector

Terminal

M64

9

No

PKIB7666E

DI-74

WARNING CHIME

4. 

CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE)

Check seat belt buckle switch (driver side). Refer to 

DI-74, "SEAT BELT BUCKLE SWITCH (DRIVER SIDE)"

 .

OK or NG

OK

>> Check seat belt buckle switch (driver side) ground circuit.

NG

>> Replace seat belt buckle switch (driver side).

Electrical Component Inspection

NKS003VC

FRONT DOOR SWITCH (DRIVER SIDE)

Check continuity between terminal 2 and door switch case ground.

SEAT BELT BUCKLE SWITCH (DRIVER SIDE)

Check continuity between terminals 1 and 2.

Terminal

Condition

Continuity

2

Door switch 
case ground

When door switch is released.

Yes

When door switch is pushed.

No

PKIC0245E

Terminal

Condition

Continuity

1

2

When seat belt is unfastened.

Yes

When seat belt is fastened.

No

PKIB7665E