Nissan Note E12. Manual — part 540
SEC-12
< SYSTEM DESCRIPTION >
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 position
Condition
Push-button ignition switch
operation frequency
Selector lever
Brake pedal operation
condition
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
operation frequency
Selector lever
Brake pedal operation
condition
Engine is running
→
ACC
—
—
Emergency stop operation
Engine stall return oper-
ation while driving
N position
Not depressed
1
SYSTEM
SEC-13
< SYSTEM DESCRIPTION >
C
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SEC
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NISSAN ANTI-THEFT SYSTEM : System Description
INFOID:0000000009606331
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 Key backside is contacted to push-button ignition
switch while brake pedal is depressed. If the verification 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 specified procedure (Initialization and registration) using
CONSULT is required.
• Possible symptom of NATS malfunction is “Engine can not start”. This symptom also occurs because of
other than NATS malfunction, so start the trouble diagnosis according to
• If ECM other than genuine part is installed, the engine cannot be started.
For ECM replacement procedure, refer to
EC-338, "Removal and Installation"
.
PRECAUTIONS FOR KEY REGISTRATION
ALKIA3205GB
SEC-14
< SYSTEM DESCRIPTION >
SYSTEM
• The ID registration is a procedure that erases the current 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 ignition 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) backside 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 lever 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 indicating 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 “IGNITION 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
operation frequency
Selector lever
Brake pedal operation
condition
OFF
→ ACC
—
Not depressed
1
OFF
→ ACC → ON
—
Not depressed
2
OFF
→ ACC → ON →
OFF
—
Not depressed
3
SYSTEM
SEC-15
< SYSTEM DESCRIPTION >
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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.
VEHICLE SECURITY SYSTEM
VEHICLE SECURITY SYSTEM : System Description
INFOID:0000000009606332
THEFT WARNING ALARM
• The theft warning alarm function activates horns and headlamps intermittently when BCM detects that any
door is opened by unauthorized means while the system is in the ARMED state.
• Security indicator lamp on combination meter always blinks when power supply position is any position other
than ON. Security indicator lamp blinking warns that the vehicle is equipped with a vehicle security system.
Operation Flow
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
operation frequency
Selector lever
Brake pedal operation
condition
Power supply position
Condition
Push-button ignition switch
operation frequency
Selector lever
Brake pedal operation
condition
Engine is running
→
ACC
—
—
Emergency stop operation
Engine stall return oper-
ation while driving
N position
Not depressed
1
JMKIA5416GB
No.
System state
Switching condition
1
DISARMED to
PRE-ARMED
When all conditions of A and
one condition of B is satis-
fied.
A
B
• Power supply position: OFF/LOCK
• All doors: Closed
All doors are locked by:
• Door key cylinder LOCK switch
• LOCK button of Intelligent Key
• Door request switch
2
PRE-ARMED
to ARMED
When all of the following
conditions are satisfied for
30 seconds.
• Power supply position: OFF/LOCK
• All doors: Locked
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