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Nissan Sentra. Manual - part 745

SEC-8

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

COMPONENT PARTS

Component Description

INFOID:0000000009756666

CVT Shift Selector (Park Position Switch)

INFOID:0000000009756667

Park position switch detects that CVT shift selector is in the P (Park) position and then transmits the signal to

BCM and IPDM E/R.

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

• P (Park) position signal from CVT shift selector (park position switch)

• P/N position signal from TCM

• P (Park) 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 (Park) position signal from CVT shift selector (park position switch)

• P/N position signal from TCM

• P/N position signal from BCM (CAN)

BCM

INFOID:0000000009756668

BCM controls INTELLIGENT KEY SYSTEM (ENGINE START FUNCTION), NISSAN VEHICLE IMMOBI-

LIZER SYSTEM-NATS (NATS), and VEHICLE SECURITY SYSTEM.

BCM performs the ID verification between BCM and Intelligent Key when the Intelligent Key is carried into the

detection area of inside key antenna and push-button ignition switch is pressed. If the ID verification result is

OK, push-button ignition switch operation is available.

10. Dongle unit (Canada only)

11. Remote keyless entry receiver (view

with instrument panel removed)

12. Inside key antenna (instrument cen-

ter)

13. Inside key antenna (console) (view

with center console removed)

14. Inside key antenna (trunk)

15. Front door switch RH

16. Outside key antenna (passenger

side)

17. Front door switch LH

18. Outside key antenna (driver side)

19. Rear door switch RH

20. Rear door switch LH

21. Transmission range switch (CVT)

22. Outside key antenna (rear bumper)

23. Clutch interlock switch (M/T)

24. Park/neutral position (PNP) switch

(neutral switch) (M/T)

Component Reference

CVT shift selector (park position switch)

BCM

ECM

IPDM E/R

NATS antenna amp.

Combination meter

Door switch

Outside key antenna

Inside key antenna

Intelligent Key

Push-button ignition switch

SEC-9

Remote keyless entry receiver

SEC-9

Security indicator lamp

SEC-9

Starter relay

SEC-10

Stop lamp switch

SEC-10

Transmission range switch (CVT)

SEC-10

Park/neutral position (PNP) switch (neutral switch) (M/T)

SEC-10

Clutch interlock switch (M/T)

SEC-10

COMPONENT PARTS

SEC-9

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SEC

Then, when the power supply position is turned ON, BCM performs ID verification between BCM and ECM. If

the ID verification result is OK, ECM can start engine.

ECM

INFOID:0000000009756669

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 invalid, the engine can not start.

IPDM E/R

INFOID:0000000009756670

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

for the engine starting function. IPDM E/R controls these relays while communicating with BCM.

NATS Antenna Amp.

INFOID:0000000009756671

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.

Combination Meter

INFOID:0000000009756672

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:0000000009756673

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

Outside Key Antenna

INFOID:0000000009756674

Outside key antenna detects whether Intelligent Key is outside the vehicle and transmits the signal to BCM.

Three outside key antennas are installed in the front outside handle LH, front outside handle RH and rear

bumper.

Inside Key Antenna

INFOID:0000000009756675

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

Three inside key antennas are installed in the instrument center, console and trunk room.

Remote Keyless Entry Receiver

INFOID:0000000009756676

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.

Intelligent Key

INFOID:0000000009756677

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 perform, remote start, door lock/

unlock operation, remote liftgate, panic alarm and push-button ignition switch operation.

Push-button Ignition Switch

INFOID:0000000009756678

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.

Security Indicator Lamp

INFOID:0000000009756679

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 (NATS) is on board.

SEC-10

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

COMPONENT PARTS

Starter Relay

INFOID:0000000009756680

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.

Stop Lamp Switch

INFOID:0000000009756681

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

Transmission Range Switch

INFOID:0000000009756682

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 (Park) position signal from CVT shift selector (park position switch)

• P/N position signal from TCM

• P (Park) 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 (Park) position signal from CVT shift selector (park position switch)

• P/N position signal from TCM

• P/N position signal from BCM (CAN)

Park/neutral position (PNP) switch (neutral switch)

INFOID:0000000010288764

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

signal to BCM.

Clutch interlock switch

INFOID:0000000010288765

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.

SYSTEM

SEC-11

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SEC

SYSTEM

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

INFOID:0000000009756683

SYSTEM DIAGRAM

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 NATS ID). It can perform the door lock/unlock operation and

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

• If the ID is successfully verified, when push-button ignition switch is pressed the engine can be started.

• Up to 4 Intelligent Keys can be registered (Including the standard Intelligent Key) upon request from the cus-

tomer.

NOTE:

Refer to

SEC-14, "NISSAN ANTI-THEFT SYSTEM : System Description"

for any functions other than engine

start function of Intelligent Key system.

AWKIA2871GB

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