Nissan Altima L32. Instruction — part 1317
SEC-418
< FUNCTION DIAGNOSIS >
[SEDAN WITHOUT INTELLIGENT KEY]
ENGINE START FUNCTION
PRECAUTIONS FOR REMOTE KEYLESS ENTRY SYSTEM
• In the remote keyless entry system of model L32, the transponder [the chip for NVIS (NATS) ID verifi-
cation] is integrated into the keyfob. (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 keyfob into the
key slot, and then it can start the engine.
OPERATION WHEN KEYFOB 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 keyfob.
2. The keyfob sends the request signal and transmits the keyfob ID signal to the BCM via the remote keyless
entry receiver.
3. The BCM receives the keyfob 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.
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 remote keyless entry system, the “KEY” warning lamp in the
combination 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 keyfob 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 keyfob is inside the vehicle. However, sometimes engine might not start when
keyfob is on instrument panel or in glove box.
OPERATION WHEN KEY SLOT IS USED
When the keyfob battery is discharged, it performs the NVIS (NATS) ID verification between the integrated
transponder and BCM by inserting the keyfob 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.
• The ignition switch is in the ACC position
• All doors are closed
• CVT selector lever is in the P position
• No remote keyless entry system failures (keyfob warning indicator is not ON)
Reset Condition of Battery Saver System
ENGINE START FUNCTION
SEC-419
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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 keyfob on door lock
Press push-button ignition switch and ignition switch will change to ACC position from OFF position.
STEERING LOCK OPERATION
Steering is locked by steering lock unit when ignition switch is in the OFF position, CVT selector lever is in the
P position and any of the following conditions are met.
• Opening door
• Closing door
• Door is locked with keyfob
PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE
The power supply position changing operation can be performed with the following operations.
NOTE:
• When an keyfob 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 engine start conditions,
- Brake pedal operating condition
- CVT selector lever position
- Vehicle speed
- Steering lock condition
- Engine status
• Unless each start condition is fulfilled, the engine will not respond regardless of how many times the engine
switch is pressed. At that time, illumination repeats the position in the order of LOCK
→ACC→ON→OFF.
*1: When the CVT selector lever position is N position, the engine start condition is different according to the vehicle speed.
• At vehicle speed of 4 km/h (2 MPH) or less, the engine can start only when the brake pedal is depressed.
• At vehicle speed of 4 km/h (2 MPH) 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 CVT selector lever position is in any position other than P position and when the vehicle speed is 5 km/h (3 MPH) 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
Engine start/stop condition
Push-button ignition switch op-
eration frequency
Brake pedal
CVT 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 or N position (*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 (2 MPH)
1
Engine is running
→
ACC
(Engine stop)
—
Any position other than P (*2)
1
Engine stall return oper-
ation while driving
—
P position
1
SEC-420
< FUNCTION DIAGNOSIS >
[SEDAN WITHOUT INTELLIGENT KEY]
ENGINE START FUNCTION
Component Parts Location
INFOID:0000000004499051
ALKIA1747ZZ
ENGINE START FUNCTION
SEC-421
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[SEDAN WITHOUT INTELLIGENT KEY]
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Component Description
INFOID:0000000004499052
1.
Body control module M16, M17, M18,
M19, M21
(view with instrument panel removed)
2.
IPDM E/R E17, E18, F10
3.
ECM E10
4.
Push button ignition switch M38
5.
Stop lamp switch E38
(view with lower driver instrument pan-
el removed)
6.
Electronic steering column lock M32
7.
Combination meter M24
8.
Remote keyless entry receiver M27
(view with instrument panel removed)
9.
Key slot M40
10. Instrument panel antenna M49
(view with instrument panel removed)
11. Front console antenna M203
(bottom view of center console)
12. Rear parcel shelf antenna B29
13. CVT device (park position switch) M23
14. Front door switch LH B8
RH B108
15. Rear door switch LH B18
RH B116
16. Park neutral position (PNP) switch F25
Component Reference
BCM
Steering lock unit
Push-button ignition switch
Door switch
CVT device (park position switch)
Inside key antenna
Remote keyless entry receiver
Stop lamp switch
Park/neutral position switch
Steering lock relay
Starter relay
Starter control relay
Security indicator
Key warning lamp
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