Nissan Leaf. Manual - part 169

BCS-70

< DTC/CIRCUIT DIAGNOSIS >

COMBINATION SWITCH OUTPUT CIRCUIT

Is the inspection result normal?

Yes

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

No

>> Replace combination switch. Refer to 

BCS-73, "Removal and Installation"

.

BCS

COMBINATION SWITCH SYSTEM SYMPTOMS

BCS-71

< SYMPTOM DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

SYMPTOM DIAGNOSIS

COMBINATION SWITCH SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000010122353

1. Perform Data Monitor of CONSULT to check for any malfunctioning item.
2. Check the malfunction combinations.

Malfunction item: 

×

3. Identify the malfunctioning part from the combinations and repair or replace the part.

Malfunction combination

Data Monitor Item

FR WI

PER HI

FR WIP

ER LOW

F

R

 W

A

SH

ER

 S

W

FR WI

PER INT

INT VOL

U

ME

RR

 WIPE

R

 O

N

RR WIP

E

R INT

RR W

ASHER 

SW

TURN SIG

NAL R

TURN SIGNAL L

TA

IL

 LA

MP 

SW

H

I BEAM SW

HEAD LAMP SW 

1

HEAD LAMP SW 

2

P

ASSI

N

G

 SW

AU

T

O

 LI

GH

T

 S

W

FR F

O

G 

SW

A

×

×

×

×

B

×

×

×

×

C

×

×

×

×

D

×

×

×

×

E

×

×

×

F

×

×

×

G

×

×

×

×

H

×

×

×

I

×

×

×

×

J

×

×

×

×

K

All Items

L

If only one item is detected or the item is not applicable to combinations A to K 

Malfunction 

combination

Malfunctioning part

Repair or replace

A

Combination switch INPUT 1 circuit

Inspect the combination switch input circuit applicable to the malfunctioning 
part. Refer to 

BCS-67, "Diagnosis Procedure"

.

B

Combination switch INPUT 2 circuit

C

Combination switch INPUT 3 circuit

D

Combination switch INPUT 4 circuit

E

Combination switch INPUT 5 circuit

F

Combination switch OUTPUT 1 circuit

Inspect the combination switch output circuit applicable to the malfunction-
ing part. Refer to 

BCS-69, "Diagnosis Procedure"

.

G

Combination switch OUTPUT 2 circuit

H

Combination switch OUTPUT 3 circuit

I

Combination switch OUTPUT 4 circuit

J

Combination switch OUTPUT 5 circuit

K

BCM

Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

L

Combination switch

Replace combination switch. Refer to 

BCS-73, "Removal and Installation"

.

BCS-72

< REMOVAL AND INSTALLATION >

BCM

REMOVAL AND INSTALLATION

BCM

Removal and Installation

INFOID:0000000010122354

NOTE:

Before replacing BCM, perform “READ CONFIGURATION” to save or print current vehicle specification. Refer

to 

BCS-57, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Description"

.

REMOVAL

1. Disconnect the 12V battery cable from the negative terminal. Refer to 

PG-89, "Removal and Installation"

.

2. Remove glove box cover assembly. Refer to 

IP-17, "Removal and Installation"

.

3. Remove BCM screws, slide BCM bracket upward to release locating hook and locating pin.
4. Disconnect the harness connectors from the BCM and remove.

INSTALLATION

Install in the reverse order of removal.

CAUTION:

Be sure to perform “WRITE CONFIGURATION” when replacing BCM. Refer to 

BCS-57, "ADDITIONAL

SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Description"

.

NOTE:

Be sure to perform the system initialization (NATS) when replacing BCM. Refer to 

BCS-57, "ADDITIONAL

SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Work Procedure"

.

BCS

COMBINATION SWITCH

BCS-73

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

COMBINATION SWITCH

Exploded View

INFOID:0000000010122355

Removal and Installation

INFOID:0000000010122356

REMOVAL

1. Disconnect the 12V battery cable from the negative terminal. Refer to 

PG-89, "Removal and Installation"

.

2. Remove steering column covers (upper/lower). Refer to 

IP-17, "Removal and Installation"

.

3. Remove screws.
4. Disconnect the harness connector.
5. Pull up the combination switch and remove.

INSTALLATION

Install in the reverse order of removal.

1.

Combination switch

2.

Combination switch connector

JMMIA0383ZZ