Nissan Xterra. Manual - part 72

BCS

BCM (BODY CONTROL MODULE)

BCS-47

< WIRING DIAGRAM >

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B

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ABMIA5574GB

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< SYMPTOM DIAGNOSIS >

COMBINATION SWITCH SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

COMBINATION SWITCH SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000009482966

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

Malfunction item: 

×

3. Identify the malfunctioning part from the agreed combination and repair or replace the part.

Malfunction combina-

tion

Data monitor item

TURN SIGNAL R

T

U

R

N

 SIGNAL L

HI BEAM 

SW

HEADLAMP SW 

1

HEADLAMP SW 

2

TA

IL LAM

P

 SW

P

ASSING SW

AUT

O

 LI

GHT

 SW

FR FOG SW

FR WIPE

R HI

F

R

 WIPER LOW

FR

 W

IP

E

R

 I

N

T

FR W

ASHER S

W

IN

T V

O

LU

ME

RR W

IPER ON

R

R

 WIPER 

IN

T

RR W

ASHER 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 the combinations A to L

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-30, "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-31, "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-50, "Removal and Installation"

.

L

Light and turn signal switch or front wip-
er and washer switch

Replace the switch that cannot be operated.

BCS

PRECAUTIONS

BCS-49

< PRECAUTION >

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a

hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing

serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery and wait at least three minutes before performing any service.

BCS-50

< REMOVAL AND INSTALLATION >

BCM (BODY CONTROL MODULE)

REMOVAL AND INSTALLATION

BCM (BODY CONTROL MODULE)

Removal and Installation

INFOID:0000000009482968

REMOVAL

NOTE:

If possible, before removing BCM, retrieve current BCM configuration to use for reference when configuring

brand-new BCM after installation. Refer to 

BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL

UNIT : Work Procedure"

.

1. Disconnect the battery negative terminal. Refer to 

PG-72, "Removal and Installation"

.

2. Remove the instrument lower panel LH. Refer to 

IP-10, "Exploded View"

.

3. Remove the BCM screws and release the BCM.
4. Disconnect the harness connectors from BCM and remove.

INSTALLATION

Installation is in the reverse order of removal.

• When replacing the BCM, it must be configured. Refer to 

BCS-4, "CONFIGURATION : Work Procedure"

.

• When replacing the BCM, perform initialization of NATS system and registration of all NATS ignition key IDs.

Refer to 

BCS-4, "CONFIGURATION : Work Procedure"

.

• When replacing the BCM, perform ID registration procedure of low tire pressure warning system. Refer to

XX-XX, "*****"

.

• When replacing the BCM, register the remote keyless entry system keyfob ID codes. Refer to 

BCS-3,

"ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Work Procedure"

.

LKIA0564E