Nissan Note E12. Manual - part 50

BCS-4

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

BODY CONTROL SYSTEM
BODY CONTROL SYSTEM : Component Parts Location

INFOID:0000000009567507

POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTROL SYSTEM : Component Parts Location

INFOID:0000000009567509

1.

BCM

A.

View with instrument panel removed

AWMIA1424ZZ

1

Combination meter
Refer to 

MWI-5, "METER SYSTEM : 

Component Parts Location"

.

2

IPDM E/R
Refer to 

PCS-4, "Component Parts 

Location"

.

3

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

.

AWMIA1437ZZ

BCS

SYSTEM

BCS-5

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

SYSTEM

BODY CONTROL SYSTEM
BODY CONTROL SYSTEM : System Description

INFOID:0000000009567510

OUTLINE

• BCM (Body Control Module) controls the various electrical components. It inputs the information required to

the control from CAN communication and the signal received from each switch and sensor. 

• BCM has combination switch reading function for reading the operation status of combination switches (light,

turn signal, wiper and washer) in addition to a function for controlling the operation of various electrical com-

ponents. It also has the signal transmission function as the passed point of signal and the power saving con-

trol function that reduces the power consumption with the ignition switch OFF.

• BCM is equipped with the diagnosis function that performs the diagnosis with CONSULT and various set-

tings.

BCM CONTROL FUNCTION LIST

System

Reference

Combination switch reading system

BCS-7, "COMBINATION SWITCH READING SYSTEM : 
System Description"

Signal buffer system

BCS-13, "SIGNAL BUFFER SYSTEM : System Description"

Power consumption control system

BCS-13, "POWER CONSUMPTION CONTROL SYSTEM : 
System Description"

Headlamp system

EXL-8, "HEADLAMP SYSTEM : System Description"

Daytime light system

EXL-9, "DAYTIME RUNNING LIGHT SYSTEM : System De-
scription"

Turn signal and hazard warning lamp system

EXL-10, "TURN SIGNAL AND HAZARD WARNING LAMP 
SYSTEM : System Description"

Parking, license plate and tail lamps system

EXL-10, "PARKING, LICENSE PLATE, SIDE MARKER AND 
TAIL LAMP SYSTEM : System Description"

Front fog lamp system

EXL-12, "FRONT FOG LAMP SYSTEM : System Descrip-
tion"

Exterior lamp battery saver system

EXL-13, "EXTERIOR LAMP BATTERY SAVER SYSTEM : 
System Description"

Interior room lamp control system

INL-7, "INTERIOR ROOM LAMP CONTROL SYSTEM : Sys-
tem Description"

Interior room lamp battery saver system

INL-7, "INTERIOR ROOM LAMP CONTROL SYSTEM : Sys-
tem Description"

Front wiper and washer system

WW-8, "FRONT WIPER AND WASHER SYSTEM : System 
Description"

Rear wiper and washer system

WW-11, "REAR WIPER AND WASHER SYSTEM : System 
Description"

Rear window defogger system

DEF-5, "System Description"

Manual air conditioning system

HAC-13, "System Description"

Warning chime system

WCS-5, "WARNING CHIME SYSTEM : System Description"

Power door lock system

DLK-17, "System Description"

Nissan vehicle immobilizer system (NVIS)

SEC-13, "NISSAN ANTI-THEFT SYSTEM : System Descrip-
tion"

Vehicle security system

SEC-15, "VEHICLE SECURITY SYSTEM : System Descrip-
tion"

BCS-6

< SYSTEM DESCRIPTION >

SYSTEM

BODY CONTROL SYSTEM : Fail-safe

INFOID:0000000009654074

BCM performs fail-safe control when the following DTCs are detected.

Intelligent Key system/engine start system

Door lock function

DLK-20, "DOOR LOCK FUNCTION : System Description"

Warning function

DLK-24, "WARNING FUNCTION : System Description"

Key reminder function

DLK-24, "KEY REMINDER FUNCTION : System Descrip-
tion"

Engine start function

SEC-10, "INTELLIGENT KEY SYSTEM/ENGINE START 
FUNCTION : System Description"

Power window system

PWC-7, "System Description"

RAP (retained accessory power) system

BCS-26, "RETAINED PWR : CONSULT Function (BCM - RE-
TAINED PWR)"

System

Reference

CONSULT Display

Fail-safe

Cancellation

B2192: ID DISCORD BCM-ECM

Inhibit engine cranking

Erase DTC

B2193: CHAIN OF BCM-ECM

Inhibit engine cranking

Erase DTC

B2195: ANTI SCANNING

Inhibit engine cranking

Ignition switch ON 

→ OFF

B2198: NATS ANTENNA AMP

Inhibit engine cranking

Erase DTC

B2557: VEHICLE SPEED

—

When the following CAN signal status (vehicle speed signal) becomes 
consistent 
• Vehicle speed signal (ABS)
• Vehicle speed signal (Meter)

B2601: SHIFT P SIGNAL

—

500 ms after the following signal reception status becomes consistent
• Park position switch signal
• P range signal (CAN)

B2602: SHIFT P DIAG

—

5 seconds after the following BCM recognition conditions are fulfilled
• Ignition switch is in the ON position
• Park position switch signal: P position (push selector button) or ex-

cept P position (9 – 16 V)

• Vehicle speed: 4 km/h (2.5 MPH) or more

B2603: SHIFT POSITION

—

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Ignition switch is in the ON position
- Park position switch signal: P position (push selector button) or ex-

cept P position (9 – 16 V)

- P/N position signal: Except P and N positions (0 – 1.5 V)
• Status  2
- Ignition switch is in the ON position
- Park position switch signal: P position (release selector button) (0 – 

1.5 V)

- P/N position signal: P or N positions (9 – 16 V)

B2604: SHIFT PN DIAG CAN

—

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Ignition switch is in the ON position
- P/N position signal: P or N position (9 – 16 V)
- Shift position signal (CAN): P or N position
• Status  2
- Ignition switch is in the ON position
- P/N position signal: Except P and N positions (0 – 1.5 V)
- Shift position signal (CAN): Except P and N position

BCS

SYSTEM

BCS-7

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

COMBINATION SWITCH READING SYSTEM
COMBINATION SWITCH READING SYSTEM : System Description

INFOID:0000000009567512

SYSTEM DIAGRAM

Combination Switch Circuit (With Variable Intermittent Wipers)

B2605: SHIFT PN DIAG IPDM

—

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Ignition switch is in the ON position
- P/N position signal: Except P and N positions (0 – 1.5 V)
• Status  2
- Ignition switch is in the ON position
- P/N position signal: P or N position (9 – 16 V)

B2608: STARTER RELAY

Inhibit engine cranking

500 ms after the following signal communication status becomes con-
sistent
• Starter motor relay control signal
• Starter relay status signal (CAN)

B260F: ECM CAN COMM

Inhibit engine cranking

When any of the following conditions are fulfilled
• Ignition switch changes to ACC
• Receives engine status signal (CAN)

B26F1: IGN RELAY OFF

Inhibit engine cranking

When the following conditions are fulfilled
• Ignition switch ON signal (CAN: Transmitted from BCM): ON
• Ignition switch ON signal (CAN: Transmitted from IPDM E/R): ON

B26F2: IGN RELAY ON

Inhibit engine cranking

When the following conditions are fulfilled
• Ignition switch ON signal (CAN: Transmitted from BCM): OFF
• Ignition switch ON signal (CAN: Transmitted from IPDM E/R): OFF

B26F3: START CONT RLY ON

Inhibit engine cranking

When the following conditions are fulfilled
• Starter control relay signal (CAN: Transmitted from BCM): OFF
• Starter control relay signal (CAN: Transmitted from IPDM E/R): OFF

B26F4: START CONT RLY OFF

Inhibit engine cranking

When the following conditions are fulfilled
• Starter control relay signal (CAN: Transmitted from BCM): ON
• Starter control relay signal (CAN: Transmitted from IPDM E/R): ON

B26F7: BCM

Inhibit engine cranking 
by Intelligent Key sys-
tem

When room antenna and luggage room antenna functions normally

U0415: VDC CAN CIR2

—

When vehicle speed signal (Meter) (CAN) is received normally

CONSULT Display

Fail-safe

Cancellation

AWMIA1427GB