Nissan Altima L32. Instruction — part 1216
SEC-14
< BASIC INSPECTION >
[COUPE]
PRE-INSPECTION FOR DIAGNOSTIC
>> GO TO 2
2.
CHECK SECURITY INDICATOR LAMP
1. Lock doors using Intelligent Key or mechanical key.
2. Check that security indicator lamp illuminates for 30 seconds.
Security indicator lamp should illuminate.
OK
>> GO TO 3
NG
>> Perform diagnosis and repair. Refer to
SEC-124, "Component Function Check"
3.
CHECK ALARM FUNCTION
1. After 30 seconds, security indicator lamp will start to blink.
2. Open any door or hood before unlocking with Intelligent Key or mechanical key, or open trunk lid without
Intelligent Key or mechanical key.
Do alarm function properly.
OK
>> GO TO 4
NG
>> Check the following.
• The vehicle security system does not phase in alarm mode. Refer to
.
• Alarm (horn, headlamp and hazard lamp) do not operate. Refer to
4.
CHECK ALARM CANCEL OPERATION
Unlock any door or open trunk lid using Intelligent Key or mechanical key.
Alarm (horn, headlamp and hazard lamp) should stop.
OK
>> Inspection End.
NG
>> Check door lock function. Refer to
INSPECTION AND ADJUSTMENT
SEC-15
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
ECM RE-COMMUNICATING FUNCTION
ECM RE-COMMUNICATING FUNCTION : Description
INFOID:0000000004205987
Performing following procedure can automatically perform re-communication of ECM and BCM, but only when
the ECM has been replaced with a new one (*1).
*1: New one means an ECM which has never been energized on-board.
(In this step, initialization procedure by CONSULT-III is not necessary)
NOTE:
• When registering new Key IDs or replacing the ECM that is not brand new, refer to CONSULT-III Oper-
ation Instruction.
• If multiple keys are attached to the key holder, separate them before work.
• Distinguish keys with unregistered key ID from those with registered ID.
ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement
INFOID:0000000004205988
1.
PERFORM ECM RE-COMMUNICATING FUNCTION
1. Install ECM.
2. Insert the registered Intelligent Key (*2), turn ignition switch to “ON”.
*2: To perform this step, use the key that has been used before performing ECM replacement.
3. Maintain ignition switch in “ON” position for at least 5 seconds.
4. Turn ignition switch to “OFF”.
5. Start engine.
Can engine be started?
YES
>> Procedure is completed.
NO
>> Initialize control unit. Refer to CONSULT-III Operation Instruction.
SEC-16
< FUNCTION DIAGNOSIS >
[COUPE]
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
FUNCTION DIAGNOSIS
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
System Diagram
INFOID:0000000004205989
System Description
INFOID:0000000004205990
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
• The engine start function of Intelligent Key system is a system that makes it possible to start and stop the
engine without removing the key. It verifies the electronic ID using two-way communications when pressing
the push-button ignition switch while carrying the Intelligent Key, which operates based on the results of
electronic ID verification for Intelligent Key using two-way communications between the Intelligent Key and
the vehicle.
NOTE:
The driver should carry the Intelligent Key at all times.
• Intelligent Key has 2 IDs [for Intelligent Key and for NVIS (NATS)]. It can perform the door lock/unlock oper-
ation and the push-button ignition switch operation when the registered Intelligent Key is carried.
• When the Intelligent Key battery is discharged, it can be used as emergency back-up by inserting the Intelli-
gent Key to the key slot. At that time, perform the NVIS (NATS) ID verification. If it is used when the Intelli-
gent Key is carried, perform the Intelligent Key ID verification.
• If the ID is successfully verified, and when push-button ignition switch is pressed, steering lock will be
released and initiating the engine will be possible.
• If the door lock/unlock operation is performed when the Intelligent Key battery is discharged, all doors lock/
unlock can be performed by operating the driver door key cylinder using the mechanical key set in the Intel-
ligent Key.
ALKIA1292GB
Switch
Input signal to BCM
BCM function
Actuator
Push-button ignition switch
Push switch
Engine start function
• Steering lock relay
• Steering lock unit
• Starter relay (IPDM E/R)
• Starter control relay (IPDM E/
R)
• Starter motor
• KEY warning lamp
CVT device (CVT models)
P range
PNP switch (CVT models)
N, P range
Clutch interlock switch (M/T mod-
els)
Clutch ON/OFF
Stop lamp switch
Brake ON/OFF
Each inside key antenna
Request signal
Remote keyless entry receiver
Key ID
Each door switch
Door open/close
ECM
Engine status signal
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
SEC-17
< FUNCTION DIAGNOSIS >
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• Intelligent Key can be registered up to 4 keys (Including the standard Intelligent Key) on request from the
owner.
NOTE:
• Refer to
DLK-25, "INTELLIGENT KEY : System Description"
for any functions other than engine start func-
tion of Intelligent Key system.
PRECAUTIONS FOR INTELLIGENT KEY SYSTEM
• In the Intelligent Key system of model L32, the transponder [the chip for NVIS (NATS) ID verification]
is integrated into the Intelligent Key. (For the conventional models, it is integrated into the mechani-
cal key.) Therefore, the mechanical key cannot perform the ID verification, and thus it cannot start
the engine. Instead, the NVIS (NATS) ID verification can be performed by inserting the Intelligent Key
into the key slot, and then it can start the engine.
OPERATION WHEN INTELLIGENT KEY IS CARRIED
1. When the push-button ignition switch is pressed and brake pedal is depressed, the BCM signals 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 via
the remote keyless entry receiver.
3. The BCM receives the Intelligent Key ID signal and verifies it with the registered ID.
4. BCM transmits the steering lock unlock signal to steering lock unit and IPDM E/R if the verification results
are OK.
5. IPDM E/R turns the steering lock relay ON and supplies power to the steering lock unit.
6. Release of the steering lock.
7. BCM transmits the power supply stop signal to IPDM E/R when it confirms that the steering lock is in the
unlock condition.
8. IPDM E/R turns the steering lock relay OFF and stops power supply to the steering lock unit.
9. BCM turns ACC relay ON and transmits the ignition power supply ON signal to IPDM E/R.
10. IPDM E/R turns the ignition relay ON and starts the ignition power supply.
11. BCM confirms that the shift position is P or N (CVT models).
12. BCM transmits the starter request signal via CAN communication to IPDM E/R and turns the starter relay
in IPDM E/R ON if BCM judges that the engine start condition is satisfied.
13. IPDM E/R turns the starter control relay ON when receiving the starter request signal.
14. Battery power is supplied through the starter relay and the starter control relay to operate the starter motor
and to start the cranking.
CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp in the combina-
tion meter illuminates. At that time, the engine cannot be started.
15. When BCM received feedback signal from ECM acknowledging the engine has been initiated, the BCM
transmits a stop signal to IPDM E/R and stops the cranking by turning OFF the starter motor relay. (If the
engine initiating has failed, the cranking will stop automatically within 5 seconds.)
CAUTION:
When the Intelligent Key is carried outside of the vehicle (inside key antenna detection area) with
the power supply in ACC or ON position, even if the engine start condition* is satisfied, the engine
cannot be started.
*: For the engine start condition, refer to “PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE”.
OPERATION RANGE
Engine can be started when Intelligent Key is inside the vehicle. However, sometimes engine might not start
when Intelligent Key is on instrument panel or in glove box.
OPERATION WHEN KEY SLOT IS USED
When the Intelligent Key battery is discharged, it performs the NVIS (NATS) ID verification between the inte-
grated transponder and BCM by inserting the Intelligent Key into the key slot, and then the engine can be
started.
For details relating to starting the engine using key slot, refer to
.
BATTERY SAVER SYSTEM
When all the following conditions are met for 60 minutes, the battery saver system will cut off the power supply
to prevent battery discharge.
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