Nissan Juke F15. Manual - part 1121

SEC-8

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

COMPONENT PARTS

ECM

INFOID:0000000012202096

ECM controls the engine.

When power supply position is turned ON, BCM starts communication with ECM and performs the ID verifica-

tion between BCM and ECM.

If the verification result is OK, the engine can start. If the verification result is NG, the engine can not start.

When ECM restarts engine by the Stop/Start System (CVT models), ECM transmits the control signals to

IPDM E/R and BCM to crank engine.

IPDM E/R

INFOID:0000000012202097

IPDM E/R has starter relay and starter control relay inside. Starter relay and starter control relay are 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.

During engine is running, IPDM E/R controls starter control relay according to the cranking request signal from

ECM for Stop/Start System.

NATS Antenna Amp.

INFOID:0000000012202098

The ID verification is performed between BCM and transponder in Intelligent Key via NATS antenna amp.

when Intelligent Key backside is contacted to push-button ignition switch in case that Intelligent Key battery is

discharged. If the ID verification result is OK, the operation of starting engine is available.

TCM

INFOID:0000000012202099

TCM transmits the shift position signal (P/N position) to BCM and IPDM E/R via CAN communication.

BCM confirms the CVT shift selector position with the following 5 signals.

• P position signal from CVT shift selector (detention switch)

• P/N position signal from transmission range switch

• P position signal from IPDM E/R (CAN)

• P/N position signal from IPDM E/R (CAN)

• P/N position signal from TCM (CAN)

IPDM E/R confirms the CVT shift selector position with the following 3 signals.

• P position signal from CVT shift selector (detention switch)

• P/N position signal from transmission range switch

• P/N position signal from BCM (CAN)

Clutch Interlock Switch

INFOID:0000000012202100

Clutch interlock switch detects that clutch pedal is depressed, then provides power source to starter control

relay and starter relay, and transmits ON/OFF signal to BCM.

Combination Meter

INFOID:0000000012202101

Combination meter transmits the vehicle speed signal to BCM via CAN communication.

BCM also receives the vehicle speed signal from ABS actuator and electric unit (control unit) via CAN commu-

nication. BCM compares both signals to detect the vehicle speed.

Door Switch

INFOID:0000000012202102

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

Inside Key Antenna

INFOID:0000000012202103

Inside key antenna detects whether Intelligent Key is inside the vehicle, and transmits the signal to BCM.

Two inside key antennas are installed in the instrument center and luggage room.

Intelligent Key

INFOID:0000000012202104

Each Intelligent key has an individual electronic ID, and transmits the ID signal by request from BCM.

Carrying the Intelligent Key whose ID is registered in BCM, the driver can performs door lock/unlock operation

and push-button ignition switch operation.

COMPONENT PARTS

SEC-9

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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Park/Neutral Position Switch

INFOID:0000000012202105

Park/neutral position switch detects that shift lever is in the neutral position, and then transmits ON/OFF signal

to BCM.

Push-button Ignition Switch

INFOID:0000000012202106

Push-button ignition switch detects that push-button is pressed, and then transmits the signal to BCM. BCM

changes the power supply position with the operation of push-button ignition switch. BCM maintains the power

supply position status while push-button is not operated.

Remote Keyless Entry Receiver

INFOID:0000000012202107

Remote keyless entry receiver receives each button operation signal and electronic key ID signal from Intelli-

gent Key, and then transmits the signal to BCM.

Security Indicator Lamp

INFOID:0000000012202108

Security indicator lamp is located on combination meter.

Security indicator lamp blinks when power supply position is any position other than ON to warn that NISSAN

VEHICLE IMMOBILIZER SYSTEM-NATS [NVIS (NATS)] is on board.

Starter Control Relay

INFOID:0000000012202109

Engine starting system functions by controlling both starter relay and starter control relay.

Both relays are integrated in IPDM E/R. Starter relay is controlled by BCM, and starter control relay is con-

trolled by IPDM E/R on request from BCM.

IPDM E/R transmits starter relay and starter control relay status signal to BCM via CAN communication.

During engine is running, starter control relay is controlled by IPDM E/R according to the cranking request sig-

nal from ECM for Stop/Start System.

Starter Relay

INFOID:0000000012202110

Engine starting system functions by controlling both starter relay and starter control relay.

Both relays are integrated in IPDM E/R. Starter relay is controlled by BCM, and starter control relay is con-

trolled by IPDM E/R on request from BCM.

IPDM E/R transmits starter relay and starter control relay status signal to BCM via CAN communication.

During engine is running, starter relay is controlled by BCM according to the cranking request signal from ECM

for Stop/Start System.

Stop Lamp Switch

INFOID:0000000012202111

Stop lamp switch detects that brake pedal is depressed, and then transmits the signal to BCM.

Transmission Range Switch

INFOID:0000000012202112

Transmission range switch is integrated in CVT assembly, and detects the CVT shift selector position.

TCM receives the transmission range switch signal and then transmits the P/N position signal to BCM and

IPDM E/R.

BCM confirms the CVT shift selector position with the following 5 signals.

• P position signal from CVT shift selector (detention switch)

• P/N position signal from transmission range switch

• P position signal from IPDM E/R (CAN)

• P/N position signal from IPDM E/R (CAN)

• P/N position signal from TCM (CAN)

IPDM E/R confirms the CVT shift selector position with the following 3 signals.

• P position signal from CVT shift selector (detention switch)

• P/N position signal from transmission range switch

• P/N position signal from BCM (CAN)

Vehicle Information Display

INFOID:0000000012202113

Vehicle information display is integrated in combination meter.

Various information and warnings regarding to the Intelligent Key System are displayed.

SEC-10

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SYSTEM

SYSTEM

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION : System Diagram

INFOID:0000000012202114

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION : System Description

INFOID:0000000012202115

SYSTEM DESCRIPTION 

• The engine start function of Intelligent Key system makes it possible to start and stop the engine without

using the key, based on the electronic ID verification. The electronic ID verification is performed between

BCM and Intelligent Key when the push-button ignition switch is pressed while the Intelligent Key is within

the detection area of inside key antenna.

NOTE:

The driver should carry the Intelligent Key at all times.

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

tion 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, the NVIS (NATS) ID ver-

ification is performed.

• 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.

JMKIA6570GB

SYSTEM

SEC-11

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

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NOTE:

Refer to 

DLK-13, "INTELLIGENT KEY SYSTEM : System Description"

 for any functions other than engine

start function of Intelligent Key system.

PRECAUTIONS FOR 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.) Therefore, ID verification cannot be per-

formed by mechanical key only.

In that case, the NVIS (NATS) ID verification can be performed when Intelligent Key backside is con-

tacted 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, 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.
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 to start the ignition power supply.
6. IPDM E/R turns the starter control relay ON for engine starting in advance.
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 the 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 source is supplied to starter motor through the starter relay and the starter control relay.

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 motor relay. (If engine start is

unsuccessful, 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 CONTACTED TO PUSH-BUTTON IG-
NITION SWITCH

When Intelligent Key battery is discharged, the NVIS (NATS) ID verification between transponder integrated

into Intelligent Key and BCM is performed when Intelligent Key backside is contacted to push-button ignition

switch. If the verification result is OK, engine can be started.

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