Nissan Leaf. Manual - part 860

INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT

INL-45

< DTC/CIRCUIT DIAGNOSIS >

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

Is the inspection result normal?

YES

>> Check for internal short circuit of each interior room lamp.

NO

>> Repair or replace harnesses.

3.

CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT

1. Turn power switch OFF.

2. Disconnect the BCM connector.

3. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> Repair or replace harnesses.

BCM

Each interior room lamp

Continuity

Connector

Terminal

Connector

Terminal

M25

56

Map lamp

R4

1

Yes

Room lamp

R5

2

Luggage room lamp

B41

1

BCM

Ground

Continuity

Connector

Terminal

M25

56

No

INL-46

< DTC/CIRCUIT DIAGNOSIS >

INTERIOR ROOM LAMP CONTROL CIRCUIT

INTERIOR ROOM LAMP CONTROL CIRCUIT

Description

INFOID:0000000010122275

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:0000000010122276

CAUTION:

 Before performing the diagnosis, check that the following is normal:

• Interior room lamp power supply

• Map lamp bulb

• Room lamp bulb

1.

CHECK INTERIOR ROOM LAMP CONTROL FUNCTION

CONSULT ACTIVE TEST

1. Switch the map lamp switch and room lamp switch to DOOR.

2. Turn power switch ON.

3. Select “INT LAMP” in “Active Test” of “BCM”.

4. While operating the test items, check that each interior room lamp turns ON/OFF (gradual brightening/

dimming).

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

YES

>> Interior room lamp control circuit is normal.

NO

>> Refer to 

INL-46, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010122277

Regarding Wiring Diagram information. Refer to 

INL-17, "Wiring Diagram"

.

1.

CHECK INTERIOR ROOM LAMP CONTROL OUTPUT

CONSULT ACTIVE TEST

1. Turn power switch OFF.

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

3. Turn power switch ON.

4. Select “INT LAMP” in “Active Test” of “BCM”.

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. Refer to 

BCS-72, "Removal and Installation"

.

2.

CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT

1. Turn power switch OFF.

2. Disconnect BCM connector, map lamp and room lamp connectors.

3. Check continuity between BCM harness connector and map lamp harness connector.

On

: Interior room lamp gradual brightening

Off

: Interior room lamp gradual dimming

BCM

Ground

Test item

Continuity

Connector

Terminal

M25

63

INT LAMP

On

Yes

Off

No

INTERIOR ROOM LAMP CONTROL CIRCUIT

INL-47

< DTC/CIRCUIT DIAGNOSIS >

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4. Check continuity between BCM harness connector and room lamp harness connector.

Is the inspection result normal?

YES

>> Replace map lamp or room lamp.

NO

>> Repair or replace harnesses.

3.

CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT

1. Turn power switch OFF.

2. Disconnect BCM connector, map lamp connector and room lamp connector.

3. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> Repair or replace harnesses.

BCM

Map lamp

Continuity

Connector

Terminal

Connector

Terminal

M25

63

R4

3

Yes

BCM

Room lamp

Continuity

Connector

Terminal

Connector

Terminal

M25

63

R5

1

Yes

BCM

Ground

Continuity

Connector

Terminal

M25

63

No

INL-48

< DTC/CIRCUIT DIAGNOSIS >

LUGGAGE ROOM LAMP CIRCUIT

LUGGAGE ROOM LAMP CIRCUIT

Description

INFOID:0000000010122278

Controls the luggage room lamp (ground side) to turn the luggage room lamp ON and OFF.

Diagnosis Procedure

INFOID:0000000010122279

CAUTION:

 Before performing the diagnosis, check that the following is normal:

• Interior room lamp power supply

• Luggage room lamp bulb

Regarding Wiring Diagram information. Refer to 

INL-17, "Wiring Diagram"

.

1.

CHECK LUGGAGE ROOM LAMP OUTPUT

1. Turn power switch OFF.

2. Remove the luggage room lamp bulb.

3. 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. Refer to 

BCS-72, "Removal and Installation"

.

2.

CHECK LUGGAGE ROOM LAMP OPEN CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between BCM harness connector and luggage room lamp harness connector.

Is the inspection result normal?

YES

>> Replace luggage room lamp.

NO

>> Repair or replace harnesses.

3.

CHECK LUGGAGE ROOM LAMP SHORT CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> Repair or replace harnesses.

BCM

Ground

Condition

Continuity

Connector

Terminal

M29

49

Back door

Open

Yes

Closed

No

BCM

Luggage room lamp

Continuity

Connector

Terminal

Connector

Terminal

M29

49

B41

2

Yes

BCM

Ground

Continuity

Connector

Terminal

M29

49

No