Nissan Cube. Manual - part 800

 

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Nissan Cube. Manual - part 800

 

 

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION

SEC-11

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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SYSTEM DESCRIPTION

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION

System Diagram

INFOID:0000000009950085

System Description

INFOID:0000000009950086

SYSTEM DESCRIPTION 

• The engine start function of Intelligent Key system is a system that makes it possible to start and stop the

engine without removing the key. It verifies an electronic ID using two-way communication when pressing
the push-button ignition switch while carrying the Intelligent Key, which operates based on the results of
electronic ID verification of Intelligent Key using two-way communication between the Intelligent Key and the
vehicle.
NOTE:
The driver should carry the Intelligent Key at all times.

• Intelligent Key has 2 IDs [Intelligent Key and NVIS (NATS)]. It can perform the door lock/unlock operation

and the push-button ignition switch operation when the registered Intelligent Key is carried.

• When Intelligent Key battery is discharged, engine can be started by operating push-button ignition switch

after contacting Intelligent Key backside to push-button ignition switch. At that time, verification is performed
by immobilizer ID.

• If the ID is successfully verified, engine can be started.
• Up to 4 Intelligent Keys can be registered (Including the standard Intelligent Key) upon request from the cus-

tomer.

JMKIA7882GB

SEC-12

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION

NOTE:
Refer to 

DLK-16, "INTELLIGENT KEY SYSTEM : System Description"

 for any functions other than engine

start function of Intelligent Key system.

PRECAUTIONS FOR INTELLIGENT KEY SYSTEM

In the Intelligent Key system, the transponder [the chip for NVIS (NATS) ID verification] is integrated
into the Intelligent Key. (For the conventional models, it is integrated into the mechanical key.) There-
fore, ID verification cannot be performed by mechanical key only and engine cannot be started.
In that case, immobilizer ID verification can be performed when Intelligent Key backside is contacted
to push-button ignition switch. If verification result is OK, engine can be started.

OPERATION WHEN INTELLIGENT KEY IS CARRIED

1.

When the push-button ignition switch is pressed, the BCM activates the inside key antenna and transmits
the request signal to the Intelligent Key.

2.

The Intelligent Key receives the request signal and transmits the Intelligent Key ID signal to the BCM via
the remote keyless entry receiver.

3.

BCM receives the Intelligent Key ID signal via remote keyless entry receiver and verifies it with the regis-
tered ID.

4.

BCM turns ACC relay ON and transmits the ignition power supply ON signal to IPDM E/R.

5.

IPDM E/R turns the ignition relay ON and starts the ignition power supply.

6.

BCM detects that the selector lever position and brake pedal operating condition.

7.

BCM transmits the starter request signal via CAN communication to IPDM E/R and turns the starter relay
in IPDM E/R ON if BCM judges that the engine start condition is satisfied.

8.

IPDM E/R turns the starter control relay ON when receiving the starter request signal.

9.

Power supply is supplied through the starter relay and the starter control relay to operate the starter motor
and start cranking.

CAUTION:

If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp in the combina-
tion meter illuminates. At that time, the engine cannot be started.

10. When BCM receives feedback signal from ECM indicating that the engine is started, the BCM transmits a

stop signal to IPDM E/R and stops cranking by turning OFF the starter relay. (If engine start is unsuccess-
ful, cranking stops automatically within 5 seconds.)

CAUTION:

When the Intelligent Key is carried outside of the vehicle (inside key antenna detection area) while
the power supply is in the ACC or ON position, even if the engine start condition* is satisfied, the
engine cannot be started.

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

OPERATION RANGE

Engine can be started when Intelligent Key is inside the vehicle. However, sometimes engine may not start
when Intelligent Key is on instrument panel or in glove box.

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

When Intelligent Key battery is discharged, immobilizer ID verification between transponder in Intelligent Key
and BCM is performed when Intelligent Key backside is contacted to push-button ignition switch. Engine can
be started.

BATTERY SAVER SYSTEM

When all the following conditions are met for 60 minutes, the battery saver system cuts off the power supply to
prevent battery discharge.
• The ignition switch is in the ACC position
• All doors are closed
• Selector lever is in the P position

Reset Condition of Battery Saver System

In order to prevent the battery from discharging, the battery saver system cuts off the power supply when all
doors are closed, the selector lever is in the P position, and the ignition switch is left in the ACC position for 60
minutes. If any of the following conditions are met the battery saver system is released.

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION

SEC-13

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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• Opening any door
• Operating door lock using door request switch
• Operating door lock using Intelligent Key
Press push-button ignition switch and ignition switch changes to the ACC position from the OFF position.

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.

Power supply position

Engine start/stop condition

Push-button ignition switch 

operation frequency

Selector lever

Brake pedal operation condi-

tion

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

Brake pedal operation condi-

tion

Engine is running 

 ACC 

Emergency stop operation

Engine stall return operation while 
driving 

N position

Not depressed

1

SEC-14

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION

Component Parts Location

INFOID:0000000009950087

1.

CVT shift selector (detention switch) 
M58

2.

 NATS antenna amp. M26

3.

Push-button ignition switch M101

4.

Remote keyless entry receiver M87
Refer to 

DLK-18, "INTELLIGENT 

KEY SYSTEM : 
Component Parts Location"

 

5.

ABS actuator and electric unit (con-
trol unit) E36
Refer to 

BRC-12, "Component Parts 

Location"

.

6.

Inside key antenna (instrument cen-
ter) M105

7.

Stop lamp switch E115

8.

Horn E50, E51

9.

Transmission range switch F21

10. IPDM E/R E10, E11, E12, E13, E14, 

E15, E17
Refer to 

PCS-5, "Component Parts 

Location"

.

11.

ECM E16

12. TCM E18

13. BCM M68, M69, M70, M71

Refer to 

BCS-10, "Component Parts 

Location"

.

14. Security indicator lamp

(combination meter) M34

15. Front door switch (driver side) B34

16. Inside key antenna (luggage room) 

B82

A.

Behind push-button ignition switch

B.

Behind instrument lower cover LH

JMKIA4036ZZ

 

 

 

 

 

 

 

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