NISSAN TEANA 2014 Service Manual

SEC-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000009461064
ALKIA2588ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

COMPONENT PARTSSEC-7
< SYSTEM DESCRIPTION >
C
D E
F
G H
I
J
L
M A
B
SEC
N
O P
1. BCM (view with combination meter re- moved) 2. IPDM E/R 3. Combination meter
4. Security indicator lamp 5. Push-button ignition switch 6. NATS antenna amp.
7. Inside key antenna (front console) 8. Inside key antenna (rear parcel shelf) (view with rear parcel shelf trim re-
moved) 9. Stop lamp switch
10. CVT shift selector (park position switch) 11. Outside key antenna (drivers side) 12. Outside key antenna (passenger side)
13. Outside key antenna (rear bumper) (view with rear bumper cover re-
moved) 14. Hood switch
15. Remote keyless entry receiver (view with upper dash pad removed) 16. Front door switch (LH) 17. Front door switch (RH)
18. Rear door switch (LH) 19. Rear door switch (RH) 20. Transmission range switch
AWKIA2693ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SEC-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Component Description
INFOID:0000000009461065
CVT Shift Selector (P ark Position Switch)INFOID:0000000009461066
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 sele ctor 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)
BCMINFOID:0000000009461067
BCM controls INTELLIGENT KE Y SYSTEM (ENGINE START FUNCTIO N), NISSAN VEHICLE IMMOBI-
LIZER SYSTEM-NATS [NVIS (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 swit ch is pressed. If the ID verification result is
OK, push-button ignition switch operation is available.
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.
ECMINFOID:0000000009461068
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.
Component Reference
CVT shift selector (park position switch) SEC-8
BCMSEC-8
ECMSEC-8
IPDM E/RSEC-9
NATS antenna amp.SEC-9
TCMSEC-9
Combination meterSEC-9
Door switchSEC-9
Hood switchSEC-9
Outside key antennaSEC-9
Inside key antennaSEC-9
Intelligent KeySEC-9
Push-button ignition switchSEC-10
Remote keyless entry receiver SEC-9
Security indicator lampSEC-10
Starter control relaySEC-10
Starter relaySEC-10
Stop lamp switchSEC-10
Transmission range switchSEC-10
Vehicle information displaySEC-10
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

COMPONENT PARTSSEC-9
< SYSTEM DESCRIPTION >
C
D E
F
G H
I
J
L
M A
B
SEC
N
O P
If the verification result is OK, the engine can start. If the verification result is NG, the engine can not start.
IPDM E/RINFOID:0000000009461069
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 contro ls these relays while communicating with BCM.
NATS Antenna Amp.INFOID:0000000009461070
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 i gnition switch in case that Intelligent Key battery is
discharged. If the ID verification result is OK, the operation of starting engine is available.
TCMINFOID:0000000009461071
TCM transmits the shift position signal (P/N position) to BCM and IPDM E/R. And further, TCM transmits the
shift position signal (P/N position) to BCM via CAN communication.
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 select or 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)
Combination MeterINFOID:0000000009461072
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:0000000009461073
Door switch detects door open/close conditi on and then transmits ON/OFF signal to BCM.
Outside Key AntennaINFOID:0000000009461074
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.
Hood SwitchINFOID:0000000009461075
Hood switch detects that hood is open/closed, and then trans mits the signal to IPDM E/R. IPDM E/R transmits
hood switch signal to BCM via CAN communication.
Inside Key AntennaINFOID:0000000009461076
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 front console and rear parcel shelf.
Remote Keyless Entry ReceiverINFOID:0000000009461077
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:0000000009461078
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 trunk, panic alarm and push-button ignition switch operation.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SEC-10
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Push-button Ignition Switch
INFOID:0000000009461079
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:0000000009461080
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 [NVIS (NATS)] is on board.
Starter Control RelayINFOID:0000000009461081
Engine starting system functions by controlling both starter relay and starter control relay.
Both relays are integrated in IPDM E/R. Starter rela y 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.
Starter RelayINFOID:0000000009461082
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 SwitchINFOID:0000000009461083
Stop lamp switch detects that brake pedal is depressed, and then transmits the signal to BCM.
Transmission Range SwitchINFOID:0000000009461084
Transmission range switch is integrated in CVT asse mbly, 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 sele ctor 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)
Vehicle Information DisplayINFOID:0000000009461085
Vehicle information display is integrated in combination meter.
Various information and warnings regarding t he Intelligent Key System are displayed.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMSEC-11
< SYSTEM DESCRIPTION >
C
D E
F
G H
I
J
L
M A
B
SEC
N
O P
SYSTEM
INTELLIGENT KEY SYSTEM/ ENGINE START FUNCTION
INTELLIGENT KEY SYSTEM/ENGINE ST ART FUNCTION : System Diagram
INFOID:0000000009461086
INTELLIGENT KEY SYSTEM/ENGINE STAR T FUNCTION : System Description
INFOID:0000000009461087
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 c an be started by operating push-button ignition switch
after contacting Intelligent Key backside to push-button i gnition switch. At that time, the NVIS (NATS) ID ver-
ification is performed.
• 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 (Includi ng the standard Intelligent Key) upon request from the cus-
tomer.
AWKIA2692GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SEC-12
< SYSTEM DESCRIPTION >
SYSTEM
NOTE:
Refer to DLK-23, "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 verifi cation] is integrated into the Intelligent Key.
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, 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 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 leve r position and brake pedal operating condition.
7. 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.
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. CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp in the combina-
tion meter illuminates. At that ti me, the engine cannot be started.
10. When BCM receives feedback signal from ECM indicati ng 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 autom atically within 5 seconds.)
CAUTION:
When the Intelligent Key is carri ed 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 the tabl e below “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 in 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 c an 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)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMSEC-13
< SYSTEM DESCRIPTION >
C
D E
F
G H
I
J
L
M A
B
SEC
N
O P
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 VEHICLE IMMOBILIZER SYSTEM-NATS
Power supply position Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever Brake pedal operation
condition
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
condition
Engine is running → ACC — — Emergency stop operation
Engine stall return operation while
driving N position Not depressed 1
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SEC-14
< SYSTEM DESCRIPTION >
SYSTEM
NISSAN VEHICLE IMMOBILIZER SY STEM-NATS : System Diagram
INFOID:0000000009461088
NISSAN VEHICLE IMMOBILIZER SYST EM-NATS : System DescriptionINFOID:0000000009461089
SYSTEM DESCRIPTION
• The NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS [NVIS (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 c annot start the engine. When the Intelligent Key battery is
discharged, the NVIS (NATS) ID verification is per formed between the transponder integrated with Intelligent
Key and BCM via NATS antenna amp. when the Intelligent Key backside is contacted to push-button ignition
switch. If the verification results are OK, the engine start operation can be performed by the push-button igni-
tion switch operation.
• Locate the security indicator lamp and apply the anti-t heft system equipment sticker that warns that the NVIS
(NATS) is on-board the model.
• Security indicator lamp always blinks when the pow er supply position is any position other than ON.
• Up to 4 Intelligent Keys can be registered (includi ng the standard ignition key) upon request from the owner.
• Specified registration is required when replacing ECM, BCM or Intelligent Key.
• Possible symptom of NVIS (NATS) malfunction is “Engine cannot start”. The engine can not be started
because of other than NVIS (NATS) malfunction, so start the trouble diagnosis according to SEC-63, "Work
Flow".
• If ECM other than genuine part is installed, the engi ne cannot be started. For ECM replacement procedure,
refer to EC-540, "Removal and Installation"
(with QR25DE) EC-997, "Removal and Installation" (with
VQ35DE).
ALKIA2513GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMSEC-15
< SYSTEM DESCRIPTION >
C
D E
F
G H
I
J
L
M A
B
SEC
N
O P
PRECAUTIONS FOR KEY REGISTRATION
• The ID registration is a procedure that erases the cu rrent NVIS (NATS) ID once, and then reregisters a new
ID. Therefore before starting the registration operation, collect all registered Intelligent Keys from the cus-
tomer.
• When registering the Intelligent Key, perform only one procedure to simultaneously register both ID [NVIS
(NATS) ID and Intelligent Key ID].
SECURITY INDICATOR LAMP
• Warns that the vehicle is equipped with NVIS (NATS).
• Security indicator lamp always blinks when the pow er supply position is 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 (Park) position, BCM activates NATS
antenna amp. that is located behind push-button ignition switch.
2. When Intelligent Key (transponder built-in) backside is contacted to push-button ignition switch, BCM
starts NVIS (NATS) ID verification between BCM and Intelligent Key (transponder built-in) via NATS
antenna amp.
3. When the NVIS (NATS) ID verification result is OK, buzzer in combination meter sounds and BCM trans-
mits 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. BCM detects that the selector lever position is P (Park) or N (Neutral).
7. BCM transmits 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.
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.
10. When BCM receives feedback signal from ECM indicating that the engine is started, BCM transmits a stop signal to IPDM E/R and stops cranking by turning of f the starter motor relay. (If engine start is unsuc-
cessful, cranking stops automatically within 5 seconds.)
*: For the engine start condition, refer to the table “POWER SUPPLY POSITION CHANGE TABLE BY PUSH-
BUTTON IGNITION SWITCH OPERATION” below.
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)
Power supply position Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever Brake pedal operation
condition
LOCK → ACC — Not depressed 1
LOCK → ACC → ON — Not depressed 2
LOCK → ACC → ON → OFF — Not depressed 3
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM