Nissan Altima HL32 Hybrid. Manual — part 984
INSPECTION AND ADJUSTMENT
SEC-9
< BASIC INSPECTION >
[INTELLIGENT KEY SYSTEM]
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INSPECTION AND ADJUSTMENT
ECM RE-COMMUNICATING FUNCTION
ECM RE-COMMUNICATING FUNCTION : Description
INFOID:0000000004215960
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 Manual NATS-IVIS/NVIS.
• 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:0000000004215961
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 Manual.
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SEC-10
< FUNCTION DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
FUNCTION DIAGNOSIS
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
System Diagram
INFOID:0000000004215962
System Description
INFOID:0000000004215963
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 starting the hybrid system 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.
• Intelligent Key can be registered with up to 4 keys on request from the owner.
NOTE:
ALKIA1392GB
Switch
Input signal to BCM
BCM function
Actuator
Push-button ignition switch
Push switch
Engine start function
• Steering lock relay
• Steering lock unit
• KEY warning lamp
ECVT device
P range
PNP switch
N, P range
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-11
< FUNCTION DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
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• Refer to
DLK-20, "INTELLIGENT KEY : System Description"
for any functions other than hybrid system
start function 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 vehicles without Intelligent Key, it is integrated into the
mechanical key.) Therefore, the mechanical key cannot perform the ID verification, and thus it can-
not start the hybrid system. Instead, the NVIS (NATS) ID verification can be performed by inserting
the Intelligent Key into the key slot, and then it can start the hybrid system.
OPERATION WHEN INTELLIGENT KEY IS CARRIED
1. When the push-button ignition switch is pressed and brake pedal 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 will now occur.
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.
12. BCM transmits the hybrid system start request signal via hardwire to Hybrid Vehicle Control ECU. If BCM
judges that the hybrid system start condition is satisfied.
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.
*: For the hybrid system start condition, refer to “PUSH-BUTTON IGNITION SWITCH OPERATION PROCE-
DURE”.
OPERATION RANGE
Hybrid system can be started when Intelligent Key is inside the vehicle. However, sometimes hybrid system
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 hybrid system can
be started.
For details relating to starting the hybrid system 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.
• The ignition switch is in the ACC position
• All doors are closed
• ECVT selector lever is in the P position
• No Intelligent Key malfunctions (Intelligent Key warning indicator is not ON)
Reset Condition of Battery Saver System
In order to prevent the battery from discharging, the battery saver system will cut off the power supply when all
doors are closed, the selector lever is on P position and the ignition switch is left on ACC position for 1 hour. If
any of the following conditions are met the battery saver system is released and the steering will change auto-
matically to lock position from OFF position.
• Opening any door
• Operating with request switch on door lock
• Operating with Intelligent Key on door lock
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SEC-12
< FUNCTION DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Press push-button ignition switch will change to ACC position from OFF position.
PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE
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 or when it is inserted to the key
slot, it is equivalent to the operations below.
• When starting the engine, the BCM monitors under the hybrid system start conditions,
- Brake pedal operating condition
- ECVT selector lever position
- Vehicle speed
- Steering lock condition
- Engine status
• Unless each condition is fulfilled, the hybrid system will not respond regardless of how many times the hybrid
system switch is pressed. At that time, illumination repeats the position in the order of LOCK
→AC-
C
→ON→OFF.
*1: When the ECVT selector lever position is N position, the engine start condition is different according to the vehicle speed.
• At vehicle speed of 4 km/h or less, the engine can start only when the brake pedal is depressed.
• At vehicle speed of 4 km/h or more, the engine can start even if the brake pedal is not depressed. (It is the same as “Engine stall
return operation while driving”.)
*2: When the ECVT selector lever position is in any position other than P position and when the vehicle speed is 5 km/h or more, the
engine stop condition is different.
• Press and hold the push-button ignition switch for 2 seconds or more. (When the push-button ignition switch is pressed for too short a
time, the operation may be invalid, so properly press and hold to prevent an incorrect operation.)
• Press the push-button ignition switch 3 times or more within 1.5 seconds. (Emergency stop operation)
Power supply position
Hybrid system start/stop condition
Push-button ignition switch op-
eration frequency
Brake pedal
ECVT selector lever position
LOCK
→ ACC
Not depressed
Any position
1
LOCK
→ ACC → ON
Not depressed
Any position
2
LOCK
→ ACC → ON →
OFF
Not depressed
Any position
3
LOCK
→ START
ACC
→ START
ON
→ START
(Engine start)
Depressed
P(*1)
1
[If the switch is pressed once,
the engine starts from any pow-
er supply position (LOCK, ACC,
and ON)]
Engine is running
→
OFF
(Engine stop)
—
Any position
(vehicle speed < 4 km/h)
1
Engine is running
→
ACC
(Engine stop)
—
Any position other than P (*2)
1
Engine stall return oper-
ation while driving
—
P position
1
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