Nissan Leaf. Manual - part 861

POWER SWITCH ILLUMINATION CIRCUIT

INL-49

< DTC/CIRCUIT DIAGNOSIS >

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POWER SWITCH ILLUMINATION CIRCUIT

Description

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Provides the power supply and the ground to control the power switch illumination.

Component Function Check

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1.

CHECK POWER SWITCH ILLUMINATION OPERATION

CONSULT ACTIVE TEST

1. Turn the power switch ON.

2. Select “ENGINE SW ILLUMI” in “Active Test” of “BCM (INTELLIGENT KEY)”.

3. While operating the test items, check that the power switch illumination turns ON/OFF.

Does the power switch illumination turn ON/OFF?

YES

>> Power switch illumination circuit is normal.

NO

>> Refer to 

INL-49, "Diagnosis Procedure"

.

Diagnosis Procedure

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Regarding Wiring Diagram information. Refer to 

INL-28, "Wiring Diagram"

.

1.

CHECK POWER SWITCH ILLUMINATION POWER SUPPLY OUTPUT

1. Turn power switch OFF.

2. Disconnect power switch connector.

3. Check voltage between power switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK POWER SWITCH ILLUMINATION POWER SUPPLY OPEN CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between BCM harness connector and the power switch harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harnesses.

3.

CHECK POWER SWITCH ILLUMINATION POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM harness connector and ground.

On

: Power switch illumination ON

Off

: Power switch illumination OFF

(+)

(–)

Condition

Voltage

(Approx.)

Power switch

Connector

Terminal

M33

5

Ground

Power switch illumination

ON

Battery voltage

OFF

0 V

BCM

Power switch

Continuity

Connector

Terminal

Connector

Terminal

M23

90

M33

5

Yes

INL-50

< DTC/CIRCUIT DIAGNOSIS >

POWER SWITCH ILLUMINATION CIRCUIT

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> Repair or replace harnesses.

4.

CHECK POWER SWITCH ILLUMINATION GROUND CIRCUIT

1. Check continuity between power switch harness connector and ground.

Is the inspection result normal?

YES

>> Replace power switch.

NO

>> Repair or replace harnesses.

BCM

Ground

Continuity

Connector

Terminal

M23

90

No

Power switch

Ground

Continuity

Connector

Terminal

M33

6

Yes

INTERIOR LIGHTING SYSTEM SYMPTOMS

INL-51

< SYMPTOM DIAGNOSIS >

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SYMPTOM DIAGNOSIS

INTERIOR LIGHTING SYSTEM SYMPTOMS

Symptom Table

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CAUTION:

Perform the “Self Diagnostic Result” with CONSULT before the symptom diagnosis. Perform the trou-

ble diagnosis if any DTC is detected.

Symptom

Possible cause

Inspection item

All the following lamps do not turn ON:
• Map  lamp
• Room lamp
• Luggage room lamp

• Harness between BCM and each 

interior room lamp

• BCM

Interior room lamp power supply cir-
cuit
Refer to 

INL-44

.

• Interior room lamp does not turn ON even 

though the door is open.
(It turns ON when turning the interior room 
lamp ON.)

• Interior room lamp does not turn OFF even 

though the door is closed.

• Harness between BCM and each 

door switch

• Harness between BCM and each 

interior room lamp

• BCM

Door switch circuit
Refer to 

DLK-102

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Interior room lamp control circuit
Refer to 

INL-46

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Interior room lamp timer does not activate.
(It turns ON/ OFF when the door opens/closes.)

—

Check the interior room lamp setting.
Refer to 

INL-10, "INTERIOR ROOM 

LAMP BATTERY SAVER SYSTEM : 
System Description"

.

•  Luggage room lamp does not turn ON even 

though the back door is open.

• Luggage room lamp does not turn OFF even 

though the back door is closed.

• Harness between BCM and back 

door switch

• Harness between BCM and lug-

gage room lamp

• BCM

Back door switch circuit
Refer to 

DLK-102

.

Luggage room lamp circuit
Refer to 

INL-48

.

Power switch illumination does not illuminate.

• Harness between BCM and power 

switch

• BCM

Power switch illumination circuit
Refer to 

INL-49

.

Interior room lamp battery saver does not acti-
vate.

BCM

Replace BCM.
Refer to 

BCS-72

.

INL-52

< REMOVAL AND INSTALLATION >

MAP LAMP

REMOVAL AND INSTALLATION

MAP LAMP

Removal and Installation

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CAUTION:

• Disconnect the 12V battery negative terminal or remove power circuit fuse while performing the

operation to prevent electric leakage. Refer to 

INL-3, "Precaution for Removing 12V Battery"

.

• Do not attempt to separate the map lamp assembly from the headlining prior to removing headlining,

or damage to the components may occur.

REMOVAL

1. Remove the headlining. Refer to 

INT-37, "Removal and Installation"

.

2. Remove the two bracket screws, then remove the map lamp assembly bracket from the map lamp assem-

bly and position aside.

3. Disconnect the harness connectors from the map lamp assembly.
4. Release the back plate pawls using a suitable tool and remove the map lamp assembly.

CAUTION:

When removing, support the map lamp assembly by hand so it does not fall out and get damaged

during removal.

5. Remove the map lamp back plate from the headlining.

INSTALLATION

Installation is in the reverse order of removal.

Replacement

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MAP LAMP BULB

The map lamp LED bulbs are replaced as part of the map lamp.