Nissan Murano. Manual - part 877

INL-20

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM

BCM : Diagnosis Procedure

INFOID:0000000009718414

1.

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connectors.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Signal name

Fuse and fusible link No.

Battery power supply

L

10

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M118

1

Battery voltage

M119

11

BCM

Ground

Continuity

Connector

Terminal

M119

13

Existed

INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT

INL-21

< DTC/CIRCUIT DIAGNOSIS >

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INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT

Description

INFOID:0000000009718415

Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery
saver activating.

Component Function Check

INFOID:0000000009718416

1.

CHECK INTERIOR ROOM LAMP POWER SUPPLY FUNCTION

CONSULT ACTIVE TEST

1.

Turn the ignition switch ON.

2.

Turn each interior room lamp ON.

-

Map lamp

-

Personal lamp

-

Step lamp

-

Vanity mirror lamp

-

Luggage room lamp

3.

Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.

4.

 With operating the test items, check that each interior room lamp turns ON/OFF.

Does the interior room lamp turn ON/OFF?

YES

>> Interior room lamp power supply circuit is normal.

NO

>> Refer to 

INL-21, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009718417

1.

CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT

CONSULT ACTIVE TEST

1.

Turn the ignition switch ON.

2.

Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.

3.

With operating the test item, check voltage between BCM harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 2.

NO

>> Replace BCM.

2.

CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the following connectors.

-

Map lamp

-

Personal lamp

-

Vanity mirror lamp (driver side)

-

Vanity mirror lamp (passenger side)

-

Luggage room lamp (RH)

-

Luggage room lamp (LH)

-

Step lamp (driver side)

Off

: Interior room lamp OFF

On

: Interior room lamp ON

Terminals

Test item

Voltage (Ap-

prox.)

(+)

(–)

BCM

Ground

BATTERY 

SAVER

Connector

Terminal

M119

4

Off

0 V

On

Battery volt-

age

INL-22

< DTC/CIRCUIT DIAGNOSIS >

INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT

-

Step lamp (passenger side)

3.

Check continuity between BCM harness connector and each interior room lamp harness connector.

Does continuity exist?

YES

>> GO TO 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM harness connector and the ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

>> Check that each interior room lamp has no internal short circuit.

BCM

Each interior room lamp

Continuity

Connector

Terminal

Connector

Terminal

M119

4

Map lamp

R19

1

Existed

Personal lamp

R21

1

Vanity mirror lamp
(driver side)

R24

2

Vanity mirror lamp
(passenger side)

R10

2

Luggage room lamp 
(RH)

D156

2

Luggage room lamp 
(LH)

D157

2

Step lamp
(driver side)

D17

1

Step lamp
(passenger side)

D51

1

BCM

Ground

Continuity

Connector

Terminal

M119

4

Not existed

INTERIOR ROOM LAMP CONTROL CIRCUIT

INL-23

< DTC/CIRCUIT DIAGNOSIS >

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INTERIOR ROOM LAMP CONTROL CIRCUIT

Description

INFOID:0000000009718418

Controls each interior room lamp (ground side) by PWM signal.
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).

Component Function Check

INFOID:0000000009718419

CAUTION:

 Before performing the diagnosis, check that the following is normal.
• Interior room lamp power supply
• Map lamp bulb
• Personal lamp bulb

1.

CHECK INTERIOR ROOM LAMP CONTROL FUNCTION

CONSULT ACTIVE TEST

1.

Switch the map lamp switch to DOOR.

2.

Turn the ignition switch ON.

3.

Select “INT LAMP” of BCM (INT LAMP) active test item.

4.

With operating the test items, check that each interior room lamp turns ON/OFF (gradual brightening/dim-
ming).

Does the interior room lamp turns ON/OFF (gradual brightening/dimming)?

YES

>> Interior room lamp control circuit is normal.

NO

>> Refer to 

INL-23, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009718420

1.

CHECK INTERIOR ROOM LAMP CONTROL OUTPUT

CONSULT ACTIVE TEST

1.

Turn ignition switch OFF.

2.

Remove all the bulbs of map lamp and personal lamp.

3.

Select “INT LAMP” of BCM (INT LAMP) active test item.

4.

 With operating the test item, check continuity between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 2.

Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM.

2.

CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector, map lamp connector and personal lamp connector.

3.

Check continuity between BCM harness connector, map lamp harness connector and personal lamp har-
ness connector.

On

: Interior room lamp gradual brightening

Off

: Interior room lamp gradual dimming

BCM

Ground

Test item

Continuity

Connector

Terminal

INT LAMP

M119

19

On

Existed

Off

Not existed