Nissan Note E12. Manual - part 391

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

INL-29

< DTC/CIRCUIT DIAGNOSIS >

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BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

Description

INFOID:0000000009671202

Provides the battery saver output/power supply. Also cuts the power supply when the interior lamp battery

saver is activated.

Component Function Check

INFOID:0000000009671203

1.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION

CONSULT

1. Turn ignition switch ON.

2. Turn each interior lamp to the ON position.

-

Interior room lamp

-

Map lamp

-

Cargo lamp

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

4. While operating the test item, check that each interior room lamp turns ON/OFF.

Is the inspection result normal?

YES

>> Battery saver output/power supply circuit is normal.

NO

>> Refer to 

INL-29, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009671204

Regarding Wiring Diagram information, refer to 

INL-13, "Wiring Diagram"

.

1.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT

CONSULT

1. Turn ignition switch ON.

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

3. While operating the test item, check voltage between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace BCM after making sure battery saver output/power supply circuit is not shorted to volt-

age. Refer to 

BCS-67, "Removal and Installation"

.

2.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect the following connectors.

-

BCM 

-

Interior room lamp

-

Map lamp

-

Cargo lamp 

3. Check continuity between BCM connector  and each interior lamp connector.

OFF

: Interior room lamp OFF

ON

: Interior room lamp ON

(+)

(-)

Test item

Voltage

Connector

Terminal

BATTERY SAVER

M99

56

Ground

OFF

0V

ON

Battery voltage

INL-30

< DTC/CIRCUIT DIAGNOSIS >

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the harness or connector.

3.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

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

NO

>> Repair or replace the harness or connector.

BCM

Each interior lamp

Continuity

Connector

Terminal

Connector

Terminal

M99

56

Interior room lamp

R7

2

Yes

Map lamp

R2

4

Cargo lamp 

B21

1

Connector

Terminal

—

Continuity

M99

56

Ground

No

INTERIOR ROOM LAMP CONTROL CIRCUIT

INL-31

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INTERIOR ROOM LAMP CONTROL CIRCUIT

Description

INFOID:0000000009671205

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:0000000009671206

CAUTION:

 Before performing the diagnosis, check that the following are normal.

• Interior room lamp power supply

• Map lamp bulb

• Room lamp bulb

1.

CHECK INTERIOR ROOM LAMP CONTROL FUNCTION

CONSULT

1. Switch the map lamp switch or interior room lamp switch to DOOR.

2. Turn ignition switch ON.

3. Select INT LAMP of BCM (INT LAMP) ACTIVE TEST item.

4. While operating the test item, check that each interior room lamp turns ON/OFF.

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

YES

>> Interior room lamp control circuit is normal.

NO

>> Refer to 

INL-31, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009671207

Regarding Wiring Diagram information, refer to 

INL-13, "Wiring Diagram"

.

1.

CHECK INTERIOR ROOM LAMP CONTROL OUTPUT

CONSULT

1. Turn ignition switch OFF.

2. Remove all the bulbs of map lamp and interior room lamp.

3. Turn ignition switch ON.

4. Select INT LAMP of BCM (INT LAMP) ACTIVE TEST item.

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

Is the inspection result normal?

YES

>> GO TO 2.

Fixed ON>>GO TO 3.

Fixed OFF>>Replace BCM after making sure battery saver output/power supply circuit is not shorted to volt-

age. Refer to 

BCS-67, "Removal and Installation"

.

2.

CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector and map lamp connector or interior room lamp connector.

3. Check continuity between BCM harness connector and map lamp harness connector or interior room

lamp harness connector.

On

: Interior room lamp gradual brightening

Off

: Interior room lamp gradual dimming

BCM

Ground

Test item

Continuity

Connector

Terminal

M99

63

INT LAMP

On

Yes

Off

No

INL-32

< DTC/CIRCUIT DIAGNOSIS >

INTERIOR ROOM LAMP CONTROL CIRCUIT

With map lamp

Is the inspection result normal?

YES

>> Check that map lamp or interior room lamp has no internal open circuit. 

NO

>> Repair or replace harness or connector.

3.

CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector.

3. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM after making sure battery saver output/power supply circuit is not shorted to volt-

age. Refer to 

BCS-67, "Removal and Installation"

.

NO

>> GO TO 4.

4.

CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT

1. Disconnect interior room lamp connector or map lamp connector.

2. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

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

NO

>> Repair or replace harness or connector.

BCM

Map lamp

Continuity

Connector

Terminal

Connector

Terminal

M99

63

R2

2

Yes

BCM

Interior room lamp

Continuity

Connector

Terminal

Connector

Terminal

M99

63

R7

3

Yes

BCM

Ground

Continuity

Connector

Terminal

M99

63

No

BCM

Ground

Continuity

Connector

Terminal

M99

63

No