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Nissan X-Trail 32. Manual - part 1811

COMPONENT PARTS

SEC-11

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SEC

No.

Component Function

Inside key antenna (luggage
room)

Inside key antenna (luggage room) detects whether Intelligent Key is inside the vehicle, and
transmits the signal to BCM.
Refer to

DLK-25, "DOOR LOCK SYSTEM : Component Parts Location"

for detailed instal-

lation location.

Outside key antenna (rear
bumper)

Detects whether or not Intelligent Key is within the outside key antenna detection area.
Refer to

DLK-25, "DOOR LOCK SYSTEM : Component Parts Location"

for detailed instal-

lation location.

Back door opener request
switch

Back door opener request switch transmits door lock/unlock request signal to BCM.
Refer to

DLK-25, "DOOR LOCK SYSTEM : Component Parts Location"

for detailed instal-

lation location.

Back door lock assembly

Back door switch is integrated into back door look assembly.
Back door switch detects back door open/close condition, and then transmits ON/OFF signal
to BCM.
Refer to

DLK-25, "DOOR LOCK SYSTEM : Component Parts Location"

for detailed instal-

lation location.

Rear door switch RH

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

Outside key antenna (pas-
senger side)

Outside key antenna and door request switch are integrated into outside door handle.
Outside key antenna detects whether Intelligent Key is within the detection area or not, and
then transmits signal to BCM.
Refer to

DLK-25, "DOOR LOCK SYSTEM : Component Parts Location"

for detailed instal-

lation location.

Front door request switch
(passenger side)

Front door request switch transmits door lock/unlock request signal to BCM.

Front door switch (Passenger
side)

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

CVT shift selector (detention
switch)
(CVT models)

Detention switch is integrated into CVT shift sector, and detects that selector lever is locked
in the P position, then transmits ON/OFF signal to BCM.

Stop lamp switch

Stop lamp switch detects that brake pedal is depressed, and then transmits ON/OFF signal
to BCM.
Refer to

BRC-14, "Component Parts Location"

for detailed installation location.

ABS actuator and electric unit
(control unit)

ABS actuator and electric unit (control unit) transmits the vehicle speed signal to BCM via
CAN communication.
BCM also receives the vehicle speed signal from combination meter via CAN communica-
tion. BCM compares both signals to detect the vehicle speed.
Refer to

BRC-14, "Component Parts Location"

for detailed installation location.

Transmission range switch
(CVT models)

Transmission range switch detects the selector lever position, and then transmits the P/N po-
sition signal to IPDM E/R.
BCM confirms the CVT shift selector position with the following 4 signals.
• P position signal from CVT shift selector (detention switch)
• P position signal from IPDM E/R (CAN)
• Neutral 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 2 signals.
• P/N position signal from transmission range switch
• P/N position signal from BCM (CAN)
Refer to

TM-235, "CVT CONTROL SYSTEM : Component Parts Location"

for detailed instal-

lation location.

Reverse/neutral position
switch
(M/T models)

Reverse/neutral position switch detects that shift lever is in the neutral position, and then
transmits ON/OFF signal to IPDM E/R.
Refer to

TM-21, "Component Parts Location"

for detailed installation location.

Hood switch

Refer to

SEC-13, "Hood Switch"

SEC-12

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

COMPONENT PARTS

ECM

ECM controls the engine.
When ignition switch is turned ON, BCM starts communication with ECM and performs the
ID verification between BCM and ECM.
If the verification result is OK, the engine can start. If the verification result is NG, the engine
cannot start.
Refer to

EC-28, "ENGINE CONTROL SYSTEM : Component Parts Location"

(MR20DD en-

gine models),

EC-812, "Component Parts Location"

(R9M engine models) or

EC-440,

"Component Parts Location"

(QR25DE engine models) for detailed installation location.

IPDM E/R

• Starter relay are integrated in IPDM E/R, and used for the engine starting function.
• Starter control relay is controlled by BCM, and starter relay is controlled by IPDM E/R while

communicating with BCM.

• IPDM E/R sends the starter control relay/starter relay status signal to BCM.
• Transmits neutral position signal to BCM via CAN communication line.
Refer to

PCS-5, "Component Parts Location"

for detailed installation location.

TCM (CVT models)

TCM receives the shift position signal from transmission range switch, and then transmits the
P/N position signal to BCM via CAN communication.
BCM confirms the selector lever position with the following 4 signals.
• P position signal from CVT shift selector (detention switch)
• P position signal from IPDM E/R (CAN)
• Neutral position signal from IPDM E/R (CAN)
• P/N position signal from TCM (CAN)
IPDM E/R confirms the selector lever position with the following 2 signals.
• P/N position signal from transmission range switch
• P/N position signal from BCM (CAN)
Refer to

TM-235, "CVT CONTROL SYSTEM : Component Parts Location"

for detailed instal-

lation location.

BCM

BCM controls INTELLIGENT KEY SYSTEM (ENGINE START FUNCTION), NISSAN ANTI-
THEFT SYSTEM (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, ignition switch operation is available.
Then, when the ignition switch is turned ON, BCM performs ID verification between BCM and
ECM. If the ID verification result is OK, ECM can start engine.
Refer to

BCS-6, "BODY CONTROL SYSTEM : Component Parts Location"

for detailed in-

stallation location.

Clutch interlock switch
(M/T models)

Clutch interlock switch detects that clutch pedal is depressed and transmits ON/OFF signal
to BCM.
Clutch pedal position switch detects that clutch pedal is depressed, and then transmits ON/
OFF signal to BCM.

Combination meter

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 communication. BCM compares both signals to detect the vehicle speed.
Security indicator lamp is located on combination meter.
Security indicator lamp blinks when ignition switch is in any position other than ON to warn
that Nissan Anti-Theft System (NATS) is on board.

Inside key antenna (instru-
ment center)

Inside key antenna (instrument center) detects whether Intelligent Key is inside the vehicle,
and transmits the signal to BCM.
Refer to

DLK-25, "DOOR LOCK SYSTEM : Component Parts Location"

for detailed instal-

lation location.

Outside key antenna (driver
side)

DLK-25, "DOOR LOCK SYSTEM : Component Parts Location"

for detailed instal-

lation location.

Front door request switch
(driver side)

Front door request switch transmits door lock/unlock request signal to BCM.

Front door switch (driver side)

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

Rear door switch LH

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

No.

Component Function

COMPONENT PARTS

SEC-13

< SYSTEM DESCRIPTION >

[WITH INTELLIGENT KEY SYSTEM]

SEC

NATS Antenna Amp.

INFOID:0000000010922113

The ID verification is performed between BCM and transponder inte-
grated into 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 ignition switch is available.

Hood Switch

INFOID:0000000010922114

Hood switch detects that hood is open, and then transmits ON/OFF
signal to IPDM E/R. IPDM E/R transmits hood switch signal to BCM
via CAN communication.

Steering Lock Unit

INFOID:0000000010922115

• Steering lock unit performs steering lock/unlock operation on

request and power source is supplied from BCM.

• When push-button ignition switch is pressed while the Intelligent

Key is inside the vehicle, BCM performs the ID verification with
steering lock unit. Steering lock unit releases the steering lock
based on the result of the ID verification.

• BCM judges the lock/unlock status of the steering according to a

Lock/Unlock status signal transmitted from the steering lock unit
via CAN communication.

• The steering lock unit has an interlock function that prohibits lock

operation at ignition switch ON.

Siren Control Unit

INFOID:0000000010941040

Siren control unit monitors the vehicle condition and controls the vehicle security system.

Starter control relay

BCM controls the starter control relay according to a starter control relay request signal from
ECM.

NATS antenna amp.

Refer to

SEC-13, "NATS Antenna Amp."

Push-button ignition switch

Push-button ignition switch has push switch inside which detects that push-button ignition
switch is pressed, and then transmits the signal to BCM. BCM changes the ignition switch
position with the operation of push-button ignition switch. BCM maintains the ignition switch
position status while push-button ignition switch is not operated.
Refer to

PCS-65, "Component Parts Location"

for detailed installation location.

Intruder sensor

Refer to

SEC-14, "Intruder Sensor"

Sensor cancel switch

Refer to

SEC-14, "Sensor Cancel Switch"

No.

Component Function

JMKIB1434ZZ

JMKIB3584ZZ