Nissan March K13. Manual - part 8

BCS

COMPONENT PARTS

BCS-5

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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SYSTEM DESCRIPTION

COMPONENT PARTS

BODY CONTROL SYSTEM

BODY CONTROL SYSTEM : Component Parts Location

INFOID:0000000006014813

POWER CONSUMPTION CONTROL SYSTEM

POWER CONSUMPTION CONTROL SYSTEM : Component Parts Location

INFOID:0000000006014814

1.

BCM

A.

Left side of glove box

JMMIA0390ZZ

1.

IPDM E/R
Refer to 

PCS-5, "Component Parts 

Location"

.

2.

Combination meter

3.

BCM
Refer to 

BCS-5, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

.

JMMIA0391ZZ

BCS-6

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

SYSTEM

BODY CONTROL SYSTEM

BODY CONTROL SYSTEM : System Description

INFOID:0000000006014815

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-III and various set-

tings.

BCM CONTROL FUNCTION LIST

BODY CONTROL SYSTEM : Fail-safe

INFOID:0000000006037233

FAIL-SAFE CONTROL BY DTC

BCM performs fail-safe control when any DTC are detected.

System

Reference

Combination switch reading system

BCS-9, "COMBINATION SWITCH READING SYSTEM : System 
Diagram"

Signal buffer system

BCS-12, "SIGNAL BUFFER SYSTEM : System Diagram"

Power consumption control system

BCS-13, "POWER CONSUMPTION CONTROL SYSTEM : Sys-
tem Diagram"

Turn signal and hazard warning lamp system

EXL-8, "TURN SIGNAL AND HAZARD WARNING LAMP SYS-
TEM : System Diagram"

Headlamp system

EXL-7, "HEADLAMP SYSTEM : System Diagram"

Parking, license plate, side maker and tail lamps system

EXL-9, "PARKING, LICENSE PLATE AND TAIL LAMP SYSTEM 
: System Diagram"

Front fog lamp system

EXL-8, "FRONT FOG LAMP SYSTEM : System Diagram"

Exterior lamp battery saver system

EXL-10, "EXTERIOR LAMP BATTERY SAVER SYSTEM : Sys-
tem Diagram"

Interior room lamp control system

INL-7, "INTERIOR ROOM LAMP CONTROL SYSTEM (WITH IN-
TELLIGENT KEY SYSTEM) : System Diagram"

Interior room lamp battery saver system

INL-10, "INTERIOR ROOM LAMP BATTERY SAVER SYSTEM : 
System Diagram"

Front wiper and washer system

WW-6, "FRONT WIPER AND WASHER SYSTEM : System Dia-
gram"

Rear wiper and washer system

WW-9, "REAR WIPER AND WASHER SYSTEM : System Dia-
gram"

Automatic air conditioner

HAC-13, "System Diagram"

Warning chime system

WCS-6, "WARNING CHIME SYSTEM : System Diagram"

Power door lock system

DLK-13, "System Diagram"

Nissan anti-theft system (NATS)

SEC-15, "NISSAN ANTI-THEFT SYSTEM : System Diagram"

Rear window defogger system

DEF-6, "REAR WINDOW DEFOGGER : System Diagram"

Intelligent Key system/engine start system

DLK-14, "INTELLIGENT KEY SYSTEM : System Diagram"

Power window system

PWC-6, "POWER WINDOW SYSTEM : System Diagram"

BCS

SYSTEM

BCS-7

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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Display contents of CONSULT

Fail-safe

Cancellation

B2013: ID DISCORD BCM-S/L

Inhibit engine cranking

When communication between BCM and steering lock unit are commu-
nicated normally.

B2014: CHAIN OF S/L-BCM

Inhibit engine cranking

When communication between BCM and steering lock unit are commu-
nicated normally.

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

Inhibit steering lock

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

B2601: SHIFT POSITION

Inhibit steering lock

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

B2602: SHIFT POSITION

Inhibit steering lock

5 seconds after the following BCM recognition conditions are fulfilled
• Ignition switch is in the ON position
• Selector lever P position switch signal: Except P position (12 V)
• Vehicle speed: 4 km/h (2.5 MPH) or more

B2603: SHIFT POSI STATUS

Inhibit steering lock

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Ignition switch is in the ON position
- Selector lever P position switch signal: Except P position (12 V)
- Selector lever P/N position signal: Except P and N positions (0 V)
• Status  2
- Ignition switch is in the ON position
- Selector lever P position switch signal: P position (0 V)
- Selector lever P/N position signal: P or N positions (12 V)

B2604: PNP/CLUTCH SW

Inhibit steering lock

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Ignition switch is in the ON position
- Selector lever P/N position signal: P or N position (12 V)
- Shift position signal (CAN): P or N position
• Status  2
- Ignition switch is in the ON position
- Selector lever P/N position signal: Except P and N positions (0 V)
- Shift position signal (CAN): Except P and N position

B2605: PNP/CLUTCH SW

Inhibit steering lock

500 ms after any of the following BCM recognition conditions are fulfilled
• Status  1
- Power position: IGN
- Selector lever P/N position signal: Except P and N positions (0 V)
- Interlock/PNP switch signal (CAN): OFF
• Status  2
- Ignition switch is in the ON position
- Selector lever P/N position signal: P or N position (12 V)
- Interlock/PNP switch signal (CAN): ON

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)

B2609: S/L STATUS

• Inhibit engine crank-

ing

• Inhibit steering lock

When the following steering lock conditions agree
• BCM steering lock control status
• Steering lock condition No. 1 signal status
• Steering lock condition No. 2 signal status

B260B: STEERING LOCK UNIT

Inhibit steering lock

Erase DTC

B260D: STEERING LOCK UNIT

Inhibit steering lock

Erase DTC

BCS-8

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

REAR WIPER MOTOR PROTECTION

BCM detects the rear wiper stopping position according to the rear wiper stop position signal.
When the rear wiper stop position signal does not change for more than 5 seconds while driving the rear
wiper, BCM stops power supply to protect the rear wiper motor.

Condition of cancellation

1.

More than 1 minute is passed after the rear wiper stop.

2.

Turn rear wiper switch OFF.

3.

Operate the rear wiper switch or rear washer switch.

COMBINATION SWITCH READING SYSTEM

B260F: ENG STATE SIG LOST

Inhibit engine cranking

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

B2612: S/L STATUS

• Inhibit engine crank-

ing

• Inhibit steering lock

When any of the following conditions are fulfilled
• Steering lock unit status signal (CAN) is received normally
• The BCM steering lock control status matches the steering lock status 

recognized by the steering lock unit status signal (CAN from IPDM E/
R)

B2619: BCM

Inhibit engine cranking

1 second after the steering lock unit power supply output control inside 
BCM becomes normal

B26EF: STRG LCK RELAY OFF

Inhibit engine cranking

When the following conditions are fulfilled
• Steering lock relay signal (CAN): ON
• Steering lock unit status signal (CAN): ON

B26F0: STRG LCK RELAY ON

Inhibit engine cranking

When the following conditions are fulfilled
• Steering lock relay signal (CAN): OFF
• Steering lock unit status signal (CAN): OFF

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: VEHICLE SPEED

Inhibit steering lock

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

Display contents of CONSULT

Fail-safe

Cancellation