Nissan Leaf. Manual - part 629

EXTERIOR LIGHTING SYSTEM SYMPTOMS

EXL-117

< SYMPTOM DIAGNOSIS >

[LED HEADLAMP]

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Daytime running light is not turned ON.
[Headlamp (HI) is turned ON.]

• Fuse
• Harness between IPDM E/R 

and daytime running light relay 

• Daytime running light relay 
• IPDM E/R
• BCM
• ECM
• Combination meter

• Daytime running light relay circuit

Refer to 

EXL-91, "Component 

Function Check"

.

• BCM (HEADLAMP)

Data monitor “ENGINE STATE”

• Combination meter

Data monitor “PKB SW”

• BCM (HEADLAMP)

Active test “DAYTIME RUNNING 
LIGHT”

Parking lamp is not turned ON.

• Fuse
• Parking lamp bulb
• Harness between IPDM E/R 

and front combination lamp

• IPDM E/R

Parking lamp circuit
Refer to 

EXL-97, "Component 

Function Check"

.

Front side marker lamp is not turned ON.

• Front side marker lamp bulb
• Harness between IPDM E/R 

and front side marker lamp

• Harness between front side 

marker lamp and ground

• IPDM E/R

Front side marker lamp circuit
Refer to 

EXL-99, "Component 

Function Check"

.

Tail lamp (Rear side marker lamp) is not turned ON.

• Fuse
• Tail lamp bulb
• Harness between IPDM E/R 

and rear combination lamp 

• Harness between and rear 

combination lamp and ground

Tail lamp circuit
Refer to 

EXL-101, "Component 

Function Check"

.

License plate lamp is not turned ON.

• License plate lamp bulb
• Harness between IPDM E/R 

and license plate lamp

• Harness between license plate 

lamp and ground

License plate lamp circuit
Refer to 

EXL-103, "Component 

Function Check"

.

Parking lamp, side marker lamp, tail lamp and li-
cense plate lamp are not turned ON.

Symptom diagnosis
“PARKING, SIDE MARKER, LICENSE PLATE AND TAIL LAMPS ARE 
NOT TURNED ON”
Refer to 

EXL-123, "Diagnosis Procedure"

.

Tail lamp indicator is not turned ON.
(Exterior lamps are turned ON.)

Combination meter

• Combination meter

Data monitor “LIGHT IND”

• BCM (HEADLAMP)

Active test “TAIL LAMP”

Turn signal lamp does not 
blink.

Indicator lamp is nor-
mal.
(Applicable side per-
forms high flasher acti-
vation.)

• Turn signal lamp bulb
• Door mirror
• Harness between BCM and 

each turn signal lamp

• Harness between each turn sig-

nal lamp and ground

Turn signal lamp circuit
Refer to 

EXL-107, "Component 

Function Check"

.

Indicator lamp is includ-
ed.

• Combination switch
• Harness between combination 

switch and BCM

• BCM

Combination switch
Refer to 

BCS-71, "Symptom Table"

.

Turn signal indicator lamp 
does not blink.
(Turn signal lamp is nor-
mal.)

One side

Combination meter

—

Both sides
(Always)

• Turn signal indicator lamp sig-

nal

• BCM
• Combination meter

• Combination meter 

Data monitor “TURN IND”

• BCM (FLASHER)

Active test “FLASHER”

Both sides
(Only when activating 
hazard warning lamp 
with power switch OFF)

• Combination meter power sup-

ply and ground circuit

• Combination meter

Combination meter
Power supply and ground circuit
Refer to 

MWI-85, "COMBINATION 

METER : Diagnosis Procedure"

.

Symptom

Possible cause

Inspection item

EXL-118

< SYMPTOM DIAGNOSIS >

[LED HEADLAMP]

EXTERIOR LIGHTING SYSTEM SYMPTOMS

• Hazard warning lamp does not activate.
• Hazard warning lamp continues activating.
(Turn signal is normal.)

• Hazard switch
• Harness between hazard 

switch and BCM

• Harness between hazard 

switch and ground

• BCM

Hazard switch circuit
Refer to 

EXL-112, "Component 

Function Check"

.

Front fog lamp is not 
turned ON.

One side

• Front fog lamp bulb
• Harness between IPDM E/R 

and front fog lamp

• Harness between front fog lamp 

and ground

• IPDM E/R

Front fog lamp circuit
Refer to 

EXL-105, "Component 

Function Check"

.

Both sides

Symptom diagnosis
“BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON”
Refer to 

EXL-124, "Diagnosis Procedure"

.

Symptom

Possible cause

Inspection item

NORMAL OPERATING CONDITION

EXL-119

< SYMPTOM DIAGNOSIS >

[LED HEADLAMP]

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NORMAL OPERATING CONDITION

Description

INFOID:0000000010121371

LED HEADLAMP

• LED brightness and color may slightly change until the temperature becomes stable. This is not malfunction.

• Illumination time lag may occur between right and left. This is not malfunction.

• Brightness may be reduced due to aged deterioration of LED.

• Because of the dummy portion of connecting part of front combination lamp, water may be seemed as if it

enters in headlamp after the vehicle is washed or after the rain. But, actually water is not entered in head-

lamp, and this is not malfunction.

AUTO LIGHT SYSTEM

The headlamp may not be turned ON/OFF immediately after passing dark area or bright area (short tunnel,

sky bridge, shadowed area, etc.) while using the auto light system. This is caused by the control difference.

This is normal.

EXL-120

< SYMPTOM DIAGNOSIS >

[LED HEADLAMP]

BOTH SIDE HEADLAMPS (HI) ARE NOT TURNED ON

BOTH SIDE HEADLAMPS (HI) ARE NOT TURNED ON

WITHOUT DAYTIME RUNNING LIGHT SYSTEM
WITHOUT DAYTIME RUNNING LIGHT SYSTEM : Description

INFOID:0000000010121372

Both side headlamps (HI) are not turned ON when setting to the lighting switch HI or PASS.

WITHOUT DAYTIME RUNNING LIGHT SYSTEM : Diagnosis Procedure

INFOID:0000000010121373

1.

COMBINATION SWITCH INSPECTION

Check combination switch. Refer to 

BCS-71, "Symptom Table"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning part.

2.

CHECK HEADLAMP (HI) REQUEST SIGNAL INPUT

CONSULT DATA MONITOR

1. Select “HL HI REQ” in “Data Monitor” of “IPDM E/R”.

2. While operating the lighting switch, check the monitor status.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

3.

HEADLAMP (HI) CIRCUIT INSPECTION

Check headlamp (HI) circuit. Refer to 

EXL-84, "WITHOUT DAYTIME RUNNING LIGHT SYSTEM : Compo-

nent Function Check"

.

Is the inspection result normal?

YES

>> Refer to 

GI-53, "Intermittent Incident"

.

NO

>> Repair or replace the malfunctioning part.

WITH DAYTIME RUNNING LIGHT SYSTEM
WITH DAYTIME RUNNING LIGHT SYSTEM : Description

INFOID:0000000010121374

Both side headlamps (HI) are not turned ON when setting to the lighting switch HI or PASS.

WITH DAYTIME RUNNING LIGHT SYSTEM : Diagnosis Procedure

INFOID:0000000010121375

1.

COMBINATION SWITCH INSPECTION

Check combination switch. Refer to 

BCS-71, "Symptom Table"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning part.

2.

CHECK HEADLAMP (HI) REQUEST SIGNAL INPUT

CONSULT DATA MONITOR

1. Select “HL HI REQ” in “Data Monitor” of “IPDM E/R”.

2. While operating the lighting switch, check the monitor status.

Monitor item

Condition

Monitor status

HL HI REQ

Lighting switch

(2ND)

HI or PASS

On

LO

Off

Monitor item

Condition

Monitor status

HL HI REQ

Lighting switch

(2ND)

HI or PASS

On

LO

Off