SEC-10
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
COMPONENT PARTS
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/RINFOID:0000000012430328
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:0000000012430329
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 igni tion switch in case that Intelligent Key battery is
discharged. If the ID verification result is OK, the operation of starting engine is available.
Combination MeterINFOID:0000000012430330
Combination meter transmits the vehicle speed signal to BCM via CAN communication.
BCM also receives the vehicle speed signal from ABS ac tuator and electric unit (control unit) via CAN commu-
nication. BCM compares both signals to detect the vehicle speed.
Door SwitchINFOID:0000000012430331
Door switch detects door open/close conditi on and then transmits ON/OFF signal to BCM.
Outside Key AntennaINFOID:0000000012430332
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 AntennaINFOID:0000000012430333
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 ReceiverINFOID:0000000012430334
Remote keyless entry receiver receives each button oper ation signal and electronic key ID signal from Intelli-
gent Key and then transmits the signal to BCM.
Intelligent KeyINFOID:0000000012430335
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 BC M, the driver can perform, remote start, door lock/
unlock operation, remote liftgate, panic alarm and push-button ignition switch operation.
Push-button Ignition SwitchINFOID:0000000012430336
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 LampINFOID:0000000012430337
Security indicator lamp is located on combination meter.
Security indicator lamp blinks when power supply positi on is any position other than ON to warn that NISSAN
VEHICLE IMMOBILIZER SYSTEM-NATS (NATS) is on board.
Starter RelayINFOID:0000000012430338
Engine starting system functions by controlling both starter relay and starter control relay.
Starter relay is controlled by BCM, and starter contro l relay is controlled 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.
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SEC-12
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
SYSTEM
INTELLIGENT KEY SYSTEM
/ENGINE START FUNCTION
INTELLIGENT KEY SYSTEM/ENGINE STAR T FUNCTION : System Description
INFOID:0000000012430341
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 swit ch 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.
• For initialization and registration of Intelligent Keys, refer to CONSULT Immobilizer mode and follow the on-
screen instructions.
• Up to 4 Intelligent Keys can be registered (Including the standard Intelligent Key) upon request from the cus- tomer.
NOTE:
ALKIA3646GB
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SYSTEMSEC-13
< SYSTEM DESCRIPTION > [WITH INTELLIGENT KEY SYSTEM]
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Refer to SEC-15, "NISSAN ANTI-THEFT 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 NATS ID verification) is integrated into the Intelligent Key. (For the con-
ventional models, it is integrated into the mechanical key.) Therefore, ID verification cannot be per-
formed by mechanical key only.
In that case, NATS ID verification can be perfor med when Intelligent Key backside is contacted to
push-button ignition switch while brake pedal is depressed. 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.
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 i gnition power supply ON signal to IPDM E/R.
5. IPDM E/R turns the ignition relay ON and starts the ignition power supply.
6. IPDM E/R turns the starter control relay ON for engine starting in advance.
7. BCM detects the selector lever position and brake pedal operation condition.
8. BCM transmits the starter request signal to IPDM E/R and turns the starter relay ON if BCM judges that the engine start condition* is satisfied.
9. Power supply is supplied through the starter relay and the starter control relay to operate the starter motor. CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp on 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 aut omatically within 5 seconds.)
CAUTION:
When the Intelligent Key is carried outside of th e 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 “IGNIT ION SWITCH POSITION CHANGE TABLE BY PUSH-BUT-
TON 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, NATS ID verification between transponder in Intelligent Key and
BCM is performed when Intelligent Key backside is cont acted to push-button ignition switch while brake pedal
is depressed. If the verification result is OK, engine can be started.
IGNITION SWITCH POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION
The ignition switch position can be changed by the following operations:
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna or 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 operation condition
- Selector lever position
- Vehicle speed
Vehicle speed: less than 4 km/h (2.5 MPH)
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SEC-14
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
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 ANTI-THEFT SYSTEM
Power supply positionCondition
Push-button ignition switch opera-
tion frequency
Selector lever Brake pedal operation condi-
tion
OFF → ACC —Not depressed 1
OFF → ACC → ON —Not depressed 2
OFF → ACC → ON → OFF — Not depressed 3
OFF → START
ACC → START
ON → START P or N position
Depressed 1
Engine is running → OFF — — 1
Power supply position Condition
Push-button ignition switch opera-
tion 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
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SYSTEMSEC-15
< SYSTEM DESCRIPTION > [WITH INTELLIGENT KEY SYSTEM]
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NISSAN ANTI-THEFT SYSTEM : System DescriptionINFOID:0000000012430342
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
• The Nissan Anti-Theft System (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 NATS ID verification is performed between the transponder integrated with Intelligent Key
and BCM via NATS antenna amp. when the Intelligent Ke y backside is contacted to push-button ignition
switch while brake pedal is depressed. If the verifica tion result is OK, the engine start operation can be per-
formed by the push-button ignition switch operation.
• Locate the security indicator lamp and always blinks it when the ignition switch is in any position except ON
to warn that the vehicle is equipped with Nissan Anti-Theft System (NATS).
• Up to 4 Intelligent Keys can be registered (including the standard ignition key) upon request from the owner.
• When replacing ECM, BCM or Intelligent Key, the spec ified procedure (Initialization and registration) using
CONSULT is required.
• For initialization and registration of Intelligent Keys, refer to CONSULT Immobilizer mode and follow the on-
screen instructions.
• Possible symptom of NATS malfunction is “Engine c an not start”. This symptom also occurs because of
other than NATS malfunction, so start the trouble diagnosis according to SEC-46, "
Work Flow".
• If ECM other than genuine part is installed, the engine cannot be started. For ECM replacement procedure, refer to EC-477, "
Removal and Installation".
ALKIA3647GB
Revision: August 2015 2016 Versa Note
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SEC-16
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
PRECAUTIONS FOR KEY REGISTRATION
• The ID registration is a procedure that erases the cu
rrent NATS ID once, and then registers a new ID. There-
fore 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 IDs (NATS
ID and Intelligent Key ID).
SECURITY INDICATOR LAMP
• Security indicator lamp warns that the vehicle is equipped with NATS.
• Security indicator lamp always blinks when the i gnition switch is in 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 the BCM activates NATS antenna amp. that is located behind push-button ignition switch.
2. When Intelligent Key (transponder built-in) backsi de is contacted to push-button ignition switch, BCM
starts NATS ID verification between BCM and Intelligent Key (transponder built-in) via NATS antenna
amp.
3. When NATS ID verification result is OK, buzzer in combination meter sounds and BCM transmits the result to ECM.
4. BCM turns ACC relay ON and transmits 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. IPDM E/R turns the starter control relay ON for engine starting in advance.
7. BCM detects that the selector leve r position and brake pedal operation condition.
8. BCM transmits starter request signal to IPDM E/R and turns the starter relay ON if BCM judges that the
engine start condition* is satisfied.
9. Power supply is supplied through the starter relay and the starter control relay to operate the starter motor.
10. When BCM receives feedback signal from ECM indica ting that the engine is started, BCM transmits a
stop signal to IPDM E/R and stops 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 “IGN ITION SWITCH POSITION CHANGE TABLE BY PUSH-BUT-
TON IGNITION SWITCH OPERATION” below.
IGNITION SWITCH POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION
The ignition switch position can be changed by the following operations.
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna or 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 operation condition
- Selector lever position
- Vehicle speed
Vehicle speed: less than 4 km/h (2.5 MPH)
Power supply position Condition
Push-button ignition switch opera-
tion frequency
Selector lever Brake pedal operation condi-
tion
OFF → ACC —Not depressed 1
OFF → ACC → ON —Not depressed 2
OFF → ACC → ON → OFF — Not depressed 3
OFF → START
ACC → START
ON → START P or N position
Depressed 1
Engine is running → OFF — — 1
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DIAGNOSIS SYSTEM (BCM)SEC-19
< SYSTEM DESCRIPTION > [WITH INTELLIGENT KEY SYSTEM]
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INTELLIGENT KEY
INTELLIGENT KEY : CONSULT Func tion (BCM - INTELLIGENT KEY)INFOID:0000000012542526
SELF DIAGNOSTIC RESULT
Refer to BCS-50, "DTCIndex".
DATA MONITOR
ACTIVE TEST
Monitor Item [Unit] Main Description
REQ SW -DR [On/Off] ×Indicates condition of door request switch LH.
REQ SW -AS [On/Off] ×Indicates condition of door request switch RH.
REQ SW -BD/TR [On/Off] ×Indicates condition of back door request switch.
PUSH SW [On/Off] Indicates condition of push-button ignition switch.
CLUCH SW [On/Off] ×Indicates condition of clutch interlock switch.
BRAKE SW 1 [On/Off] ×Indicates condition of brake switch.
BRAKE SW 2 [On/Off] Indicates condition of brake switch.
DETE/CANCL SW [On/Off] ×Indicates condition of P (park) position.
SFT PN/N SW [On/Off] ×Indicates condition of P (park) or N (neutral) position.
UNLK SEN -DR [On/Off] ×Indicates condition of door unlock sensor.
PUSH SW -IPDM [On/Off] Indicates condition of push-button ignition switch received from IPDM E/R on
CAN communication line.
IGN RLY1 -F/B [On/Off] Indicates condition of ignition relay 1 received from IPDM E/R on CAN commu-
nication line.
DETE SW -IPDM [On/Off] Indicates condition of detent switch received from TCM on CAN communication
line.
SFT PN -IPDM [On/Off] Indicates condition of P (park) or N (neutral) position from TCM on CAN com-
munication line.
SFT P -MET [On/Off] Indicates condition of P (park) position from TCM on CAN communication line.
SFT N -MET [On/Off] Indicates condition of N (neutral) position from IPDM E/R on CAN communica-
tion line.
ENGINE STATE [Stop/Start/Crank/Run] ×Indicates condition of engine state from ECM on CAN communication line.
VEH SPEED 1 [mph/km/h] ×Indicates condition of vehicle speed si
gnal received from ABS on CAN commu-
nication line.
VEH SPEED 2 [mph/km/h] ×Indicates condition of vehicle speed signal received from combination meter on
CAN communication line.
DOOR STAT -DR [LOCK/READY/UNLK] ×Indicates condition of driver side door status.
DOOR STAT -AS [LOCK/READY/UNLK] ×Indicates condition of passenger side door status.
ID OK FLAG [Set/Reset] Indicates condition of Intelligent Key ID.
PRMT ENG STRT [Set/Reset] Indicates condition of engine start possibility.
RKE OPE COUN1 [0-19] ×When remote keyless entry receiver receives the signal transmitted while oper-
ating on Intelligent Key, the numerical value start changing.
RKE OPE COUN2 [0-19] ×When remote keyless entry receiver receives the signal transmitted while oper-
ating on Intelligent Key, the numerical value start changing.
RKE-LOCK [On/Off] Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off] Indicates condition of unlock signal from Intelligent Key.
RKE-PANIC [On/Off] Indicates condition of panic signal from Intelligent Key.
RKE-MODE CHG [On/Off] Indicates condition of mode change signal from Intelligent Key.
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SEC-20
< SYSTEM DESCRIPTION >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
WORK SUPPORT
Test Item
Description
INSIDE BUZZER This test is able to check combination meter warning chime operation [Take Out/Knob/Key/
Off].
LCD This test is able to check combination meter display in
formation [Off/LK WN/OUTKEY/NO
KY/BATT/INSRT/SFT P/ROTAT/ID NG/B&P I/B&P N].
BATTERY SAVER This test is able to check battery saver operation [On/Off].
ENGINE SW ILLUMI This test is able to check push-button ignition switch START indicator operation [On/Off].
PUSH SWITCH INDICATOR This test is able to check push-button ignition switch indicator operation [On/Off].
INT LAMP This test is able to check interior room lamp operation [On/Off].
INDICATOR This test is able to check combination meter warning lamp operation [KEY ON/KEY IND/Off].
FLASHER This test is able to check hazard lamp operation [LH/RH/Off].
OUTSIDE BUZZER This test is able to check Intelligent Key warning buzzer operation [On/Off].
HORN This test is able to check horn operation [On].
P RANGE This test is able to check CVT shift selector illumination operation [On/Off].
Support ItemSetting Description
LOCK/UNLOCK BY I-KEY On*
Door lock/unlock function from Intelligent Key ON.
Off Door lock/unlock function from Intelligent Key OFF.
ANTI KEY LOCK IN FUNCTI On*
Anti lock out setting ON.
Off Anti lock out setting OFF.
ANS BACK I-KEY UNLOCK Off
No buzzer reminder when doors are unlocked with request switch.
On* Buzzer reminder when doors are unlocked with request switch.
ANS BACK I-KEY LOCK Horn Chirp
Horn chirp reminder when doors are locked with request switch.
Buzzer* Buzzer reminder when doors are locked with request switch.
Off No reminder when doors are locked with request switch.
HORN WITH KEYLESS LOCK Off
Horn chirp reminder when doors are locked with Intelligent Key.
On* No horn chirp reminder when doors are locked with Intelligent Key.
HAZARD ANSWER BACK Lock/Unlock*
Hazard warning lamp activation when doors are locked/unlocked
with Intelligent Key or request switch.
Unlock Only Hazard warning lamp activation when doors are unlocked with Intel-
ligent Key or request switch.
Lock Only Hazard warning lamp activation when doors are locked with Intelli-
gent Key or request switch.
Off No hazard warning lamp activation when doors are locked/unlocked
with Intelligent Key or request switch.
INSIDE ANT DIAGNOSIS —This function allows inside key antenna self-diagnosis.
CONFIRM KEY FOB ID —Intelligent Key ID code can be checked.
SHORT CRANKING OUTPUT Start70 msec
Starter motor operation duration time setting.
100 msec
200 msec
End —
PANIC ALARM SET MODE 3 1.5 sec
Intelligent Key panic alarm button setting.
MODE 2 OFF
MODE 1* 0.5 sec
LO- BATT OF KEY FOB WARN On*
Intelligent Key low battery warning ON.
Off Intelligent Key low battery warning OFF.
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