Nissan Juke F15. Manual - part 1122

SEC-12

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

- Clutch pedal operating condition

- 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.

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS

Power supply position

Engine start/stop condition

Push-button ignition 

switch operation 

frequency

CVT models

M/T models

Selector lever

Brake pedal operation 

condition

Clutch pedal operation 

condition

OFF 

→ ACC

—

Not depressed

Not depressed

1

OFF 

→ ACC → ON

—

Not depressed

Not depressed

2

OFF 

→ ACC → ON → OFF

—

Not depressed

Not depressed

3

OFF 

→ START

ACC 

→ START

ON 

→ START

P or N position

Depressed

Depressed

1

Engine is running 

→ OFF

—

—

—

1

Power supply position

Engine start/stop condition

Push-button ignition 

switch operation 

frequency

CVT models

M/T models

Selector lever

Brake pedal operation 

condition

Clutch pedal operation 

condition

Engine is running 

→ ACC 

—

—

—

Emergency stop 

operation

Engine stall return operation 
while driving 

N position

Not depressed

Depressed

1

SYSTEM

SEC-13

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : System Diagram

INFOID:0000000012202116

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : System Description

INFOID:0000000012202117

SYSTEM DESCRIPTION

• The NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS [NVIS (NATS)] prevents the engine from being

started by Intelligent Key whose ID is not registered to the vehicle (BCM). It has higher protection against

auto theft involving the duplication of mechanical keys.

• The ignition key integrated in the Intelligent Key cannot start the engine. When the Intelligent Key battery is

discharged, the NVIS (NATS) ID verification is performed between the transponder integrated into Intelligent

Key and BCM via NATS antenna amp. when the Intelligent Key backside is contacted to push-button ignition

switch. If the verification results are OK, the engine start operation can be performed by the push-button igni-

tion switch operation.

• The security indicator lamp on combination meter always blinks when the power supply position is any posi-

tion other than ON which warns that the NVIS (NATS) is on board the model.

• Up to 4 Intelligent Keys can be registered (including the standard ignition key) upon request from the owner.

• Specified registration is required when replacing ECM, BCM or Intelligent Key.

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

because of other than NVIS (NATS) malfunction, so start the trouble diagnosis according to 

SEC-44, "Work

Flow"

.

• If ECM other than genuine part is installed, the engine cannot be started. For ECM replacement procedure,

refer to 

EC-157, "Work Procedure"

.

PRECAUTIONS FOR KEY REGISTRATION

JMKIA6571GB

SEC-14

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

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

Therefore before starting the registration operation, collect all registered Intelligent Keys from the customer.

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

(NATS) ID and Intelligent Key ID].

SECURITY INDICATOR LAMP

• Warns that the vehicle is equipped with NVIS (NATS).

• Security indicator lamp always blinks when the power supply position is any position other than ON.

NOTE:

Because security indicator lamp is highly efficient, the battery is barely affected.

ENGINE START OPERATION WHEN INTELLIGENT KEY IS CONTACTED TO PUSH-BUTTON IG-
NITION SWITCH

1. When brake pedal is depressed, while selector lever is in the P position (CVT models), BCM activates

NATS antenna amp. that is located behind push-button ignition switch.

2. When Intelligent Key (transponder built-in) backside is contacted to push-button ignition switch, BCM

starts NVIS (NATS) ID verification between BCM and Intelligent Key (transponder built-in) via NATS

antenna amp.

3. When the NVIS (NATS) ID verification result is OK, buzzer in combination meter sounds and BCM trans-

mits the result to ECM.

4. When push-button ignition switch is pressed, BCM turns ACC relay ON and transmits ignition power sup-

ply ON signal to IPDM E/R.

5. IPDM E/R turns the starter control relay ON for engine starting in advance.
6. IPDM E/R turns the ignition relay ON to start the ignition power supply.
7. BCM detects that the selector lever position and brake pedal operating condition (CVT models), or clutch

pedal operation condition (M/T models).

8. BCM transmits starter request signal to IPDM E/R and turns the starter relay in IPDM E/R ON if BCM

judges that the engine start condition* is satisfied.

9. Power supply is supplied to the starter motor through the starter relay and the starter control relay.
10. When BCM receives feedback signal from ECM indicating that the engine is started, BCM transmits a

stop signal to IPDM E/R to stop cranking by turning off the starter motor relay. (If engine start is unsuc-

cessful, cranking stops automatically within 5 seconds.)

*: For the engine start condition, refer to “POWER SUPPLY POSITION CHANGE TABLE BY PUSH-BUTTON

IGNITION SWITCH OPERATION” below.

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, they are equivalent to the operations below.

• When starting the engine, the BCM monitors the engine start conditions as per the following,

CVT models

- Brake pedal operating condition

- Selector lever position

- Vehicle speed

M/T models

- Clutch pedal operating condition

- Vehicle speed

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

Power supply position

Engine start/stop condition

Push-button ignition 

switch operation 

frequency

CVT models

M/T models

Selector lever

Brake pedal operation 

condition

Clutch pedal operation 

condition

OFF 

→ ACC

—

Not depressed

Not depressed

1

OFF 

→ ACC → ON

—

Not depressed

Not depressed

2

SYSTEM

SEC-15

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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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.

VEHICLE SECURITY SYSTEM

OFF 

→ ACC → ON → OFF

—

Not depressed

Not depressed

3

OFF 

→ START

ACC 

→ START

ON 

→ START

P or N position

Depressed

Depressed

1

Engine is running 

→ OFF

—

—

—

1

Power supply position

Engine start/stop condition

Push-button ignition 

switch operation 

frequency

CVT models

M/T models

Selector lever

Brake pedal operation 

condition

Clutch pedal operation 

condition

Power supply position

Engine start/stop condition

Push-button ignition 

switch operation 

frequency

CVT models

M/T models

Selector lever

Brake pedal operation 

condition

Clutch pedal operation 

condition

Engine is running 

→ ACC 

—

—

—

Emergency stop 

operation

Engine stall return operation 
while driving 

N position

Not depressed

Depressed

1