Nissan X-Trail 32. Instruction — part 1861

COMPONENT PARTS

SEC-211

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

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SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000010922263

View with head lining

View with steering column

View with F/L Fuse holder No.2

JMKIB3705ZZ

SEC-212

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

COMPONENT PARTS

NATS Antenna Amp.

INFOID:0000000010922264

The ID verification is performed between BCM and ignition key via
NATS antenna amp. when ignition switch is turned ON. If an unregis-
tered ID of ignition key is used, the operation of the starting engine is
prohibited.

No.

Component Function

Rear door switch RH

Door switch detects door open/close condition and then transmits ON/OFF signal to BCM.

Front door switch (passenger
side)

Door switch detects door open/close condition and then transmits ON/OFF signal to BCM.

Hood switch

Refer to

SEC-213, "Hood Switch"

.

ECM

ECM controls the engine.
When ignition switch is turned ON, BCM starts communication with ECM and performs the
ID verification between BCM and ECM.
If the verification result is OK, the engine can start. If the verification result is NG, the engine
cannot start.
Refer to

EC-28, "ENGINE CONTROL SYSTEM : Component Parts Location"

(MR20DD),

EC-440, "Component Parts Location"

(QR25DE) or

EC-812, "Component Parts Location"

(R9M) for detailed installation location.

IPDM E/R

Starter control relay and starter relay are integrated in IPDM E/R, and used for the engine
starting function.
Starter relay is controlled by BCM, and starter control relay is controlled by-IPDM E/R while
communicating with BCM.
IPDM E/R sends the starter control relay and starter relay status signal to BCM.
Refer to

PCS-5, "Component Parts Location"

for detailed installation location.

BCM

BCM controls Nissan Anti-Theft System (NATS).
BCM performs ID verification between BCM and ECM when ignition switch is turned ON. If
the ID verification result is OK, ECM can start engine.
Refer to

BCS-6, "BODY CONTROL SYSTEM : Component Parts Location"

for detailed in-

stallation location.

Combination meter

Security indicator lamp is located on combination meter.
Security indicator lamp blinks when ignition switch is in any position other than ON to warn
that Nissan Anti-Theft System (NATS) is on board.

Front door switch (driver side)

Door switch detects door open/close condition and then transmits ON/OFF signal to BCM.

Rear door switch LH

Door switch detects door open/close condition and then transmits ON/OFF signal to BCM.

Back door lock assembly

Back door switch is integrated into back door look assembly.
Back door switch detects back door open/close condition, and then transmits ON/OFF signal
to BCM.
Refer to

DLK-643, "Component Parts Location"

(TYPE3) or

DLK-794,

"Component Parts Location"

(TYPE4) for detailed installation location.

Intruder sensor

Refer to

SEC-213, "Intruder Sensor"

.

Sensor cancel switch

Refer to

SEC-213, "Sensor Cancel Switch"

.

NATS antenna amp.

Refer to

SEC-212, "NATS Antenna Amp."

.

Starter control relay

BCM controls the starter control relay according to a starter control relay request signal from
ECM.

JMKIB2856ZZ

COMPONENT PARTS

SEC-213

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

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F

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Hood Switch

INFOID:0000000011009614

Hood switch detects that hood is open, and then transmits ON/OFF
signal to IPDM E/R. IPDM E/R transmits hood switch signal to BCM
via CAN communication.

Siren Control Unit

INFOID:0000000011009615

Siren control unit monitors the vehicle condition and controls the vehicle security system.

Intruder Sensor

INFOID:0000000011009616

Intruder sensor detects a movement entering passenger compart-
ment, then transmits the signal to siren control unit.

Sensor Cancel Switch

INFOID:0000000011009617

BCM deactivates intruder sensor for the vehicle security system
when BCM receives sensor cancel switch ON signal.

JMKIB3584ZZ

JMKIB3704ZZ

JMKIB3261ZZ

SEC-214

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

SYSTEM

SYSTEM

NISSAN ANTI-THEFT SYSTEM

NISSAN ANTI-THEFT SYSTEM : System Description

INFOID:0000000010922265

SYSTEM DIAGRAM

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 blinks when ignition switch is in any position other than ON. 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.

- BCM
- Ignition key
• Possible symptom of NATS malfunction is “Engine cannot start”. The engine also cannot be started because

of other than the NATS malfunction, so start the trouble diagnosis according to

SEC-259, "Work Flow"

.

• If ECM other than Genuine NISSAN parts is installed, the engine cannot be started. For ECM replacement

procedure, refer to

EC-430, "Removal and Installation"

(MR20DD),

EC-806, "Removal and Installation"

(QR25DE) or

EC-1226, "Removal and Installation"

(R9M).

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 other than ON.
• Security indicator lamp turns OFF when the ignition switch is turned ON.

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).

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 transmits the verification OK signal to ECM, and then ECM can
start the engine.

JMKIB3228GB