Nissan March K13. Manual — part 598
COMPONENT PARTS
SEC-131
< SYSTEM DESCRIPTION >
[WITHOUT INTELLIGENT KEY SYSTEM]
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If the verification result is OK, ECM can start engine. If the verification result is NG, ECM cannot start engine.
Ignition Key
INFOID:0000000006014764
The ID verification is performed between BCM and ignition key via NATS antenna amp. when ignition switch is
turned ON. If an unregistered ID of ignition key is used, the operation of the starting engine is prohibited.
NATS Antenna Amp.
INFOID:0000000006014765
The ID verification is performed between BCM and ignition key via NATS antenna amp. when ignition switch is
turned ON. If an unregistered ID of ignition key is used, the operation of the starting engine is prohibited.
Security Indicator lamp
INFOID:0000000006014766
Security indicator lamp is located on combination meter.
Nissan Anti-Theft System (NATS) conditions are indicated by blinking or illumination of security indicator lamp.
SEC-132
< SYSTEM DESCRIPTION >
[WITHOUT INTELLIGENT KEY SYSTEM]
SYSTEM
SYSTEM
NISSAN ANTI-THEFT SYSTEM
NISSAN ANTI-THEFT SYSTEM : System Diagram
INFOID:0000000006014767
NISSAN ANTI-THEFT SYSTEM : System Description
INFOID:0000000006014768
SYSTEM DESCRIPTION
Nissan Anti-Theft System (NATS) has the following immobilizer functions:
• NATS shows high anti-theft performance to prevent engine from starting by anyone other than the owner
who has the registered ignition key.
• The ignition key has NATS ID and only ignition key which has the same ID as the ID registered in BCM and
ECM can start engine. This makes high anti-theft performance to prevent the vehicle from being stolen using
a copied ignition key.
• Security indicator lamp always flashes when ignition switch is in any position other than the ON position.
Therefore, NATS warns outsiders that the vehicle is equipped with the anti-theft system.
• If the system detects a malfunction, security indicator lamp illuminates when ignition switch is turned ON.
• If the owner requires, ignition key ID can be registered for up to 5 keys.
• During trouble diagnosis, when additional ignition key is needed, or when the following components are
replaced, the ID registration is required. For the registration procedure, refer to CONSULT-III Operation
Manual NATS-IVIS/NVIS.
- BCM
- Ignition key
• Possible symptom of NATS malfunction is “Engine cannot start”. The engine can not be started because of
other than the NATS malfunction, so start the trouble diagnosis according to
• If ECM other than Genuine NISSAN parts is installed, the engine cannot be started. For ECM replacement
EC-524, "Removal and Installation"
[HR12DE (TYPE 2)].
PRECAUTIONS FOR KEY REGISTRATION
• Refer to CONSULT-III Operation Manual NATS-IVIS/NVIS, for the actual procedure of NATS ID registration.
• The NATS ID registration is the procedure that registers the ID stored into the ignition key (transponder is
integrated) to BCM.
SECURITY INDICATOR LAMP
• Security indicator lamp is located on combination meter and warns that the vehicle is equipped with NATS.
• Security indicator lamp always blinks, when the ignition switch is in any position except the ON position.
• Security indicator lamp turns OFF, when the ignition switch is in ON position.
OPERATION WHEN IGNITION KEY IS INSERTED INTO IGNITION KEY CYLINDER
1.
When ignition switch is turned ON, BCM activates NATS antenna amp. to start NATS ID verification with
the ignition key (transponder is integrated).
JMKIA4753GB
SYSTEM
SEC-133
< SYSTEM DESCRIPTION >
[WITHOUT INTELLIGENT KEY SYSTEM]
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2.
BCM receives the NATS ID signal from ignition key via NATS antenna amp. and verifies it with the regis-
tered ID.
3.
When the NATS ID verification result is OK, BCM performs the ID verification between BCM and ECM.
4.
When the verification result is OK, BCM sends the verification OK signal to ECM, and then ECM can start
the engine.
5.
When the ignition switch is turned to the START position, BCM sends the starter request signal to IPDM E/
R.
SEC-134
< SYSTEM DESCRIPTION >
[WITHOUT INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)
INFOID:0000000006032067
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
• *1: For models without NATS this mode is not used.
• *2: This item is displayed, but is not used.
THEFT ALM
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 control
INT LAMP
×
×
×
Remote keyless entry system
MULTI REMOTE ENT
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
• Automatic air conditioner
• Manual air conditioner
AIR CONDITONER
×
Combination switch
COMB SW
×
Body control system
BCM
×
NATS
IMMU
×
*
1
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door
TRUNK
×
—
THEFT ALM*
2
×
×
—
RETAINED PWR*
2
Signal buffer system
SIGNAL BUFFER
×
×
Panic alarm
PANIC ALARM
×
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