Nissan March K13. Manual - part 494

PCS-58

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

SYSTEM

STEERING LOCK OPERATION

Steering is locked by steering lock unit when ignition switch is in the OFF position, selector lever is in the P
position and any of the following conditions are met.
• Opening door
• Closing door
• Door is locked with door request switch
• Door is locked with Intelligent Key

POWER SUPPLY POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION

The power supply position changing operation can be performed with the following operations.
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna and when Intelligent Key backside

is contacted to push-button ignition switch, it is equivalent to the operations below.

• When starting the engine, the BCM monitors under the engine start conditions,
- Brake pedal operating condition
- Selector lever position
- Vehicle speed

Vehicle speed: less than 4 km/h (2.5 MPH)

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

Emergency stop operation

• Press and hold the push-button ignition switch for 2 seconds or more.

• Press the push-button ignition switch 3 times or more within 1.5 seconds.

Fail-safe

INFOID:0000000006046551

FAIL-SAFE CONTROL BY DTC

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

Power supply position

Engine start/stop condition

Push-button ignition switch op-

eration frequency

Selector lever position

Brake pedal operation condition

LOCK 

→

 ACC

—

Not depressed

1

LOCK 

→

 ACC 

→

 ON

—

Not depressed

2

LOCK 

→

 ACC 

→

 ON 

→

 OFF

—

Not depressed

3

LOCK 

→

 START

ACC 

→

 START

ON 

→

 START

P or N position

Depressed

1

Engine is running 

→

 OFF

—

—

1

Power supply position

Engine start/stop condition

Push-button ignition switch 

operation frequency

Selector lever position

Brake pedal operation condition

Engine is running 

→

 ACC 

—

—

Emergency stop operation

Engine stall return operation 
while driving 

N position

Not depressed

1

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

PCS

SYSTEM

PCS-59

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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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

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

Display contents of CONSULT

Fail-safe

Cancellation

PCS-60

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION 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.

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

PCS

DIAGNOSIS SYSTEM (BCM)

PCS-61

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

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DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)

INFOID:0000000006069268

APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.

×

: Applicable item

*: This item is displayed, but is not used.

FREEZE FRAME DATA (FFD)

The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.

Diagnosis mode

Function Description

Work Support

Changes the setting for each system function.

Self Diagnostic Result

Displays the diagnosis results judged by BCM.

CAN Diag Support Monitor

Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.

Data Monitor

The BCM input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from BCM.

Ecu Identification

The BCM part number is displayed.

Configuration

• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.

System

Sub system selection item

Diagnosis mode

Work Support

Data Monitor

Active Test

Door lock

DOOR LOCK

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

×

Automatic air conditioner

AIR CONDITONER

×

×

• Intelligent Key system
• Engine start system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

Body control system

BCM

×

NATS

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Back door

TRUNK

×

—

THEFT ALM*

×

×

×

—

RETAINED PWR*

×

Signal buffer system

SIGNAL BUFFER

×

×