Nissan Murano Z51. Manual - part 1242

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS

SEC-15

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS

System Diagram

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*: Models with steering lock unit

System Description

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SYSTEM DESCRIPTION

• The NVIS (NATS) is an anti-theft system by registering an Intelligent Key ID in to the vehicle and prevents

the engine being started by an unregistered Intelligent Key. It has a higher protection against auto thefts that
duplicate mechanical key.

• It performs the ID verification when starting the engine in the same way as the Intelligent Key system. But, it

performs the NVIS (NATS) ID verification when inserting the Intelligent Key and performs the Intelligent Key
ID verification when carrying the Intelligent Key.

• The mechanical key integrated in the Intelligent Key cannot start the engine. When the Intelligent Key bat-

tery is discharged, the NVIS (NATS) ID verification memorized to the transponder integrated with Intelligent
Key is performed by inserting the Intelligent Key into the key slot. If the verification results are OK, the
engine start operation can be performed by the push-button ignition switch operation.

• Locate the security indicator and apply the anti-theft system equipment sticker, forewarn that the NVIS

(NATS) is onboard with the model.

• Security indicator lamp always blinks when the power supply position is in any position except the ON posi-

tion.

• Intelligent Key can be registered up to 4 keys (Including the standard ignition key) on request from the

owner.

JMKIA4873GB

SEC-16

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS

• The specified registration is required when replacing ECM, BCM or Intelligent Key. The registrations proce-

dure for NVIS (NATS) and registration procedure for Intelligent Key when installing the BCM, refer to CON-
SULT-III Operation Manual NATS-IVIS/NVIS.

• Possible symptom of NVIS (NATS) malfunction is “Engine can not start”. The engine can be started with the

Intelligent Key system and NVIS (NATS). Identify the possible causes according to “Work Flow”, Refer to

SEC-5, "Work Flow"

.

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

dure, refer to 

SEC-8, "ECM RECOMMUNICATING FUNCTION : Special Repair Requirement"

.

PRECAUTIONS FOR KEY REGISTRATION

• The key registration is a procedure that erases the current NVIS (NATS) ID once, and then re-registers a

new ID operation. Therefore the registered Intelligent Key is necessary for this procedure. Before starting
the registration operation collect all registered Intelligent Keys from the customer

• When registering the Intelligent Key, performs only one procedure to register simultaneously both ID (NVIS

“NATS” ID registration and Intelligent Key ID registration).
The NVIS (NATS) ID registration is the procedure that registers the ID stored into the transponder (inte-
grated in Intelligent Key) to BCM.
The Intelligent key ID registration is the procedure that registers the ID to BCM.

• When performing the Intelligent Key system registration only, the engine cannot be started by inserting the

key into the key slot. When performing the NVIS (NATS) registration only, the engine cannot be started by
the operation when carrying the key. The registrations of both systems should be performed.

SECURITY INDICATOR LAMP

• Warns that the vehicle is equipped with NVIS (NATS).
• The security indicator always blinks when the ignition switch is in any position except the ON position.
NOTE:
Because security indicator is highly efficient, the battery is barely affected.

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 it is inserted to the key

slot, 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

Power supply position

Engine start/stop condition

Push-button ignition 

switch operation

frequency

With steering lock unit

Without steering lock unit

Selector lever

Brake pedal opera-

tion condition

LOCK 

→

 ACC

OFF 

→

 ACC

—

Not depressed

1

LOCK 

→

 ACC 

→

 ON

OFF 

→

 ACC 

→

 ON

—

Not depressed

2

LOCK 

→

 ACC 

→

 ON 

→

 OFF

OFF 

→

 ACC 

→

 ON 

→

 OFF

—

Not depressed

3

LOCK 

→

 START

ACC 

→

 START

ON 

→

 START

OFF 

→

 START

ACC 

→

 START

ON 

→

 START

P or N position

Depressed

1

Engine is running 

→

 OFF

Engine is running 

→

 OFF

—

—

1

Power supply position

Engine start/stop condition

Push-button ignition switch 

operation frequency

Selector lever

Brake pedal operation 

condition

Engine is running 

→

 ACC 

—

—

Emergency stop operation

Engine stall return operation while driving 

N position

Not depressed

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NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS

SEC-17

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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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.

Component Parts Location

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1.

BCM M118, M119, M121, M122, M123

2.

TCM F23

3.

IPDM E/R E10, E11, F12

4.

ECM E16

5.

Push-button ignition switch M101

6.

Key slot M99

7.

Combination meter (key warning lamp) 
M34

8.

Security indicator lamp M100

9.

Horn (high) E340, E341

10. Horn (low) E342, E343

11.

CVT shift selector (detention switch) 
M57 

12. Stop lamp switch

E116

13. Remote keyless entry receiver M78

A.

Behind the combination meter

B.

Engine room (LH)

C.

View with the center console as-
sembly removed

D.

Behind the instrument lower panel LH

E.

Behind the instrument lower panel RH

JMKIA1825ZZ

SEC-18

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS

Component Description

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1.

Front power window switch (passen-
ger side) D45

2.

Inside key antenna (console) M305

3.

Inside key antenna (luggage room) 
B86

4.

Back door lock assembly (back door 
switch) D180

5.

Front door switch (driver side) B34

6.

power window main switch (door 
lock and unlock switch) D5, D6

A.

Under the rear seat seatback

JMKIA4874ZZ

Component Reference

BCM

SEC-94

Steering lock unit (models with steering lock unit)

SEC-82

Push-button ignition switch

SEC-95

Door switch

DLK-97

key slot

DLK-131

CVT shift selector (detention switch)

SEC-61

Inside key antenna

DLK-91

Remote keyless entry receiver

DLK-114

Stop lamp switch

SEC-55

Transmission range switch

SEC-69

Steering lock relay (models with steering lock unit)

SEC-99

Starter relay

SEC-76

Starter control relay

SEC-99