Nissan Leaf. Manual - part 626

FRONT FOG LAMP CIRCUIT

EXL-105

< DTC/CIRCUIT DIAGNOSIS >

[LED HEADLAMP]

C

D

E

F

G

H

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A

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EXL

N

O

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FRONT FOG LAMP CIRCUIT

Component Function Check

INFOID:0000000010121361

1.

CHECK FRONT FOG LAMP OPERATION

CONSULT ACTIVE TEST

1. Select “EXTERNAL LAMPS” in “Active Test” of “IPDM E/R”.

2. While operating the test items, check that the front fog lamp is turned ON.

Is the measurement normal?

YES

>> Front fog lamp circuit is normal.

NO

>> Refer to 

EXL-105, "Diagnosis Procedure"

. 

Diagnosis Procedure

INFOID:0000000010121362

Regarding Wiring Diagram information. Refer to 

EXL-54, "Wiring Diagram"

.

1.

CHECK FRONT FOG LAMP FUSE

1. Turn power switch OFF.

2. Check that the following fuse is not blown:

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FRONT FOG LAMP SHORT CIRCUIT

1. Disconnect front fog connector and IPDM E/R connector.

2. Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> Replace fuse. (Replace IPDM E/R if the fuse is blown again.)

NO

>> Replace the blown fuse after repairing the affected circuit.

3.

CHECK FRONT FOG LAMP BULB

Check the applicable lamp bulb.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace bulb.

4.

CHECK FRONT FOG LAMP OUTPUT VOLTAGE

CONSULT ACTIVE TEST

1. Disconnect front fog lamp connector.

2. Turn power switch ON.

3. Select “EXTERNAL LAMPS” in “Active Test” of “IPDM E/R”.

Fog

: Front fog lamp ON

Off

: Front fog lamp OFF

Unit

Location

Fuse No.

Capacity

Front fog lamp

IPDM E/R

50

15 A

IPDM E/R

Ground

Continuity

Connector

Terminal

RH

E12

19

No

LH

20

EXL-106

< DTC/CIRCUIT DIAGNOSIS >

[LED HEADLAMP]

FRONT FOG LAMP CIRCUIT

4. While operating the test items, check the voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace IPDM E/R. Refer to 

PCS-29, "Removal and Installation"

.

5.

CHECK FRONT FOG LAMP OPEN CIRCUIT

1. Turn power switch OFF.

2. Disconnect IPDM E/R connector.

3. Check continuity between IPDM E/R harness connector and front fog lamp harness connector.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK FRONT FOG LAMP GROUND CIRCUIT OPEN CIRCUIT

Check continuity between front fog lamp harness connector and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-53, "Intermittent Incident"

.

NO

>> Repair or replace harness.

(+)

(

−)

Test item

Voltage

(Approx.)

IPDM E/R

Connector

Terminal

RH

E12

19

Ground

EXTERNAL 

LAMPS

Fog

Battery voltage

Off

0 V

LH

20

Fog

Battery voltage

Off

0 V

IPDM E/R

Front fog lamp

Continuity

Connector

Terminal

Connector

Terminal

RH

E12

19

E48

1

Yes

LH

20

E30

Front fog lamp

Ground

Continuity

Connector

Terminal

RH

E48

2

Yes

LH

E30

TURN SIGNAL LAMP CIRCUIT

EXL-107

< DTC/CIRCUIT DIAGNOSIS >

[LED HEADLAMP]

C

D

E

F

G

H

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A

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EXL

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TURN SIGNAL LAMP CIRCUIT

Component Function Check

INFOID:0000000010121363

1.

CHECK TURN SIGNAL LAMP

CONSULT ACTIVE TEST

1. Select “FLASHER” in “Active Test” of “BCM (FLASHER)”.

2. While operating the test items, check that the turn signal lamps is turned ON.

Is the inspection result normal?

YES

>> Turn signal lamp circuit is normal.

NO

>> Refer to 

EXL-107, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010121364

Regarding Wiring Diagram information. Refer to 

EXL-59, "Wiring Diagram"

.

1.

CHECK TURN SIGNAL LAMP BULB

Check the applicable lamp bulb.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace bulb.

2.

CHECK TURN SIGNAL LAMP OUTPUT VOLTAGE

1. Turn power switch OFF.

2. Disconnect front combination lamp connector and rear combination lamp connector.

3. Turn power switch ON.

4. While operating the turn signal switch, check voltage between BCM harness connector and ground.

LH

: Turn signal lamps (LH) ON

RH

: Turn signal lamps (RH) ON

Off

: Turn signal lamps OFF

(+)

(–)

Condition

Voltage

(Approx.)

BCM

Connector

Terminal

LH

M25

60

Ground

Turn signal 
switch

LH

OFF

0 V

RH

61

RH

OFF

0 V

PKID0926E

PKID0926E

EXL-108

< DTC/CIRCUIT DIAGNOSIS >

[LED HEADLAMP]

TURN SIGNAL LAMP CIRCUIT

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

CHECK TURN SIGNAL LAMP OPEN CIRCUIT

1. Turn power switch OFF.

2. Disconnect BCM connector.

3. Check continuity between BCM harness connector and front combination lamp, side turn signal lamp or

rear combination lamp harness connector.

Front turn signal lamp

Rear turn signal lamp

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

4.

CHECK TURN SIGNAL LAMP SHORT CIRCUIT

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Check each bulb socket for internal short circuit, and if check result is normal, replace BCM. Refer

to 

BCS-72, "Removal and Installation"

.

NO

>> Repair or replace harness.

5.

CHECK TURN SIGNAL LAMP GROUND OPEN CIRCUIT

Check continuity between BCM harness connector and front combination lamp or rear combination lamp and

ground.

Front turn signal lamp

Rear turn signal lamp

Is the inspection result normal?

YES

>> Check corresponding bulb socket and harness. Repair or replace if necessary.

NO

>> Repair or replace harness.

BCM

Front combination lamp

Continuity

Connector

Terminal

Connector

Terminal

 RH

M25

61

E86

8

Yes

 LH

60

E85

BCM

Rear combination lamp

Continuity

Connector

Terminal

Connector

Terminal

RH

M25

61

B59

4

Yes

LH

60

B80

BCM

Ground

Continuity

Connector

Terminal

RH

M25

61

No

LH

60

Front combination lamp

Ground

Continuity

Connector

Terminal

RH

E86

7

Yes

LH

E85

Rear combination lamp

Ground

Continuity

Connector

Terminal

RH

B59

7

Yes

LH

B80