engine control NISSAN TIIDA 2011 Service Manual Online

AV-50
< SERVICE INFORMATION >[AUDIO WITH NAVIGATION]
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006412034
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000006412035
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: May 2010 2011 Versa

AV-66
< SERVICE INFORMATION >[AUDIO WITH NAVIGATION]
AUDIO
END ON-BOARD DIAGNOSIS
Turn OFF ignition switch.
Noise InspectionINFOID:0000000005931317
The vehicle itself can be a source of noise if noise
prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Symptom ChartINFOID:0000000006216708
MALFUNCTION WITH NAVIGATION
System configuration • 8 pulses speed
• Clock ON/OFF
• Equalizer setup X11C
• RF tuning
• Antenna type
• Sound system
• Sub Out: Code
• Steering wheel The device is configured by a connect-
ed hardware circuit.
The parameter is
influenced.
Self test •Bluetooth
® module Access Mal-
function
• SD-card Access Malfunction
• Radio-Antenna Circuit Malfunc-
tion
• GPS Antenna Circuit Malfunc-
tion
• Microphone Circuit Malfunction A system self test is executed: the re-
sult is stored into
the error memory
which is shown afterwards as a list of
codes of the detected malfunctions.
Mode
ItemContent
Occurrence condition Possible cause
Occurs only when engine is ON. A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.
Ignition components
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is
running and the lighting switch is ON. Generator
Noise only occurs when various
electrical components are oper-
ating. A cracking or snapping sound occurs with the op-
eration of various switches.
Relay malfunction, radio malfunction
The noise occurs when various motors are operat-
ing. • Motor case ground
• Motor
The noise occurs constantly, not just under certain conditions. • Rear defogger coil malfunction
• Open circuit in printed heater
A cracking or snapping sound occurs while the vehicle is being driven, especially when
it is vibrating excessively. • Ground wire of body parts.
• Ground due to improper part installation
• Wiring connections or a short circuit
Symptoms
Check itemsProbable malfunction location / Action to
take
Display does not turn ON. All switches cannot be operated.
AV control unit power supply and ground
circuit. Refer to
AV- 6 9
.
All switches can be operated. AV control unit. Refer to AV- 6 9
.
Revision: May 2010 2011 Versa

AUDIOAV-67
< SERVICE INFORMATION > [AUDIO WITH NAVIGATION]
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MALFUNCTION WITH AUDIO
• The majority of the audio malfunctions are the result of outside causes (Malfunction CD, electromagnetic interference, etc.). Check the sympt oms below to diagnose the malfunction.
• The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and oper-
ation of each piece of electrical equipment, and then determine the cause.
NOTE:
• CD-R is not guaranteed to play because they can contain compressed audio (MP3, WMA) or could be incorrectly mastered by the customer on a computer.
• Check if the CDs have the Compact Disc logo. If not, the disc is not mastered to the “red book” Compact
Disc standard and may not play.
All switches cannot be operated. Display does not turn ON.
AV control unit power supply and ground
circuit. Refer to
AV- 6 9.
Display turn ON. AV control unit. Refer to AV- 6 9
.
Only specified switch cannot be
operated. –
AV control unit. Refer to AV- 6 9
.
Voice guidance is not heard. Audio sound is normal. AV control unit. Refer to AV- 6 9
.
Display does not dim. Check “Illumination
Signal” in “SERVICE
SYSTEM STATUS”,
“SERVICE MENU”. “Illumination Signal” reaches
100% when the lighting
switch is ON.
AV control unit. Refer to
AV- 7 3
.
“Illumination Signal” does not
reach 100% when the lighting
switch is ON. Illumination signal circuit. Refer to
LT-
109.
Vehicle icon does not move. Check “Speed Signal”
in “SERVICE SYSTEM
STATUS”, “SERVICE
MENU”. A value of “Speed Signal”
changes according to vehicle
speeds.
AV control unit. Refer to
AV- 7 3
.
A value of “Speed Signal”
does not change according to
vehicle speeds. Vehicle speed signal circuit. Refer to
DI-
16.
Map matching is not complete
GPS icon is not displayed Check “GPS Antenna”
in “SERVICE SYSTEM
SELF TEST”, “SER-
VICE MENU”. “Connected” is displayed for
“GPS Antenna”.
AV control unit. Refer to
AV- 7 3
.
“Connected” is not displayed
for “GPS Antenna”. GPS antenna. Refer to
AV- 9 3
.
Traffic information (XM Traffic) is
not received. Radio broadcasts are received.
AV control unit. Refer to AV- 7 3
.
Radio broadcasts are not received. • Radio antenna. Refer to
AV- 9 1
.
• Antenna feeder. Refer to AV- 9 1
.
Symptoms
Check itemsProbable malfunction location / Action to
take
Symptom Probable malfunction location
Audio system does not work normally. • AV control unit power supply and ground circuit. Refer to
AV- 6 9
.
• AV control unit. Refer to AV- 7 3
.
Audio steering wheel switch does not operate proper-
ly. • Remote control signal circuit between steering switch and AV control unit.
Refer to AV- 6 9
.
• Steering wheel audio control switch. Refer to AV- 7 3
.
• AV control unit. Refer to AV- 7 3
.
No sound can be heard from any speakers. • Speaker circuit shorted to ground. Refer to
AV- 5 6
.
• AV control unit. Refer to AV- 7 3
.
No sound can be heard from front speakers. • Audio signal circuit between AV control unit and front speakers. Refer to
AV- 7 0
.
• Front speaker. Refer to AV- 7 3
.
• Front tweeter. Refer to AV- 7 3
.
• AV control unit. Refer to AV- 7 3
.
Revision: May 2010 2011 Versa

BCS-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005929254
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000006413290
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: May 2010 2011 Versa

BL-4
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005929267
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005929268
NOTE:
• This procedure is applied only to models with Intell igent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
• Remove and install all control units after disconnec ting both battery cables with the ignition in the ″LOCK ″
position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS /IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
Revision: May 2010 2011 Versa

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< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
System Description
INFOID:0000000005929328
• The Intelligent Key system is a system that makes it possible to lock and unlock the door locks (door lock/
unlock function), and start the engine (engine start func tion) by carrying around the Intelligent Key (without
some key operation), which operates based on the results of electronic ID verification using two-way com-
munications between the Intelligent Key and the vehicle (Intelligent Key unit).
• Vehicles equipped with a manual transmission include a key interlock solenoid located in the steering col- umn to prevent accidental shut-off of the ignition sw itch and locking of the steering wheel during driving con-
dition when the vehicle is moving.
CAUTION:
The driver should always carry the Intelligent Key
• Operation of the remote controller buttons on the Inte lligent Key also provides the same functions as the
remote control entry system. (Remote keyless entry functions)
• If an action that does not meet the operating conditions of the Intelligent Key system is taken, the buzzer
goes off to inform the driver. (Warning chime functions)
• When a door lock is locked or unlocked with request switch or remote controller button operation, the hazard
lamps flash and the buzzer (outside vehicle) sounds (Hazard and buzzer reminder function).
• Even if the Intelligent Key battery is completely discharged, the door locks can be locked and unlocked and the engine started with the mechanical key built into the Intelligent Key.
• The settings for each function can be changed with the CONSULT-III.
• If an Intelligent Key is lost, a new Intelligent Key can be registered. A maximum of 4 Intelligent Keys can be registered.
• It has been made possible to diagnose the system and r egister an Intelligent Key with the CONSULT-III.
DOOR LOCK/UNLOCK FUNCTION
Only when pressing the request switch, it is possible to lock and unlock the door by carrying around the Intelli-
gent Key (without some key operation).
System Diagram
10. Steering lock solenoid M6
(bottom view of steering column) 11. Key switch and ignition knob switch M73
(with CVT or A/T) 12. Key switch and ignition knob switch M73
(with M/T)
13. CVT or A/T shift selector (park posi- tion switch) M38
(without M/T) 14. Intelligent key warning buzzer (front
door LH) D6
(view with front door finisher LH re-
moved) 15. Front outside antenna LH D10, RH D106
16. Front door request switch LH D5, RH D103 17. Front door lock assembly LH (door un-
lock sensor) D14 18. Front door switch LH B8, RH B108
19. Rear door switch LH B6, RH B116 20. Front console antenna B125 (view of front console without arm rest
removed)21. Front console antenna B125
(view of front console with arm rest re-
moved)
22. Rear floor antenna B126 (behind rear seat) 23. Trunk opener request switch B129
(sedan) 24. Back door request switch D406
(hatchback)
25. Back door lock assembly (back door switch) D405 (hatchback view
with back door open) 26. Rear bumper antenna B2
(view with rear fascia removed) 27. Intelligent Key warn
ing buzzer (trunk) B32
(sedan)
LIIA2926E
Revision: May 2010 2011 Versa

BL-92
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
The headlamp flashes and the horn sounds intermittently.
The alarm automatically turns off:
• After 25 seconds
• When Intelligent Key unit receives any signal from remote controller of Intelligent Key
• When door request switch is pressed (Intelligent Key is outside vehicle)
Panic alarm function's press and holding time value can be changed in “PANIC ALARM DELAY” mode in
“WORK SUPPORT”. Refer to BL-117, "
CONSULT-III Application Item".
List of Operation Related Parts
Parts marked with × are the parts related to operation.
ENGINE START FUNCTION
When the registered Intelligent Key is carried, the engine can be started without inserting the key.
When ignition knob switch is ON (press ignition switch ), Intelligent Key unit searches Intelligent Key in the
vehicle using inside key antenna.
Then Intelligent Key is inside the vehicle, it performs the following operation.
• Illuminate green “KEY” warning lamp in combination meter.
• Released steering lock and ignition switch can be turned from OFF to ACC, ON or START position.
NOTE:
If Intelligent Key is not registered, “KEY” warning lamp in combination meter illuminates red.
• Intelligent Key sends engine start signal to BCM via CAN communication line.
When ignition switch turns to START position, BCM sends starter request signal to IPDM E/R. Then, engine
starts.
Remote keyless entry functions
Intelligent Key
Key switch
Ignition knob switch
Door request switch
Door switch
Back door lock assembly (back door switch)
Door lock actuator
Intelligent Key warning buzzer
Intelligent Key unit
CAN communication system
BCM
Hazard warning lamp
Horn
IPDM E/R
Head lamp
Door lock/unlock function by Intelligent Key button × ××× ×××
Hazard and buzzer reminder function ×××××
Auto door lock function ×× ××× ×××
Panic alarm function ×××× ××× ×××
WIIA1282E
Revision: May 2010 2011 Versa

INTELLIGENT KEY SYSTEMBL-119
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Trouble Diagnosis Symptom ChartINFOID:0000000005929340
KEY WARNING LAMP (GREEN) ILLUMINATES
NOTE:
Monitor item Description
CONFIRM KEY FOB ID It can be checked whether Intelligent Key ID code is registered or not in this mode.
TAKE OUT FROM WINDOW
WARN Take away warning chime (from window) mode can be changed to operate (ON) or not operate
(OFF) with this mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-
III screen is touched.
LOW BAT OF KEY FOB WARN Intelligent Key low battery warning mode can be changed to operate (ON) or not operate (OFF)
with this mode. The operation mode will be changed when “CHANGE
SETT” on CONSULT-III
screen is touched.
ANSWER BACK FUNCTION Buzzer reminder function mode by Intelligent button can be changed to operate (ON) or not oper-
ate (OFF) with this mode. The operation mode will be changed when “CHANGE SETT” on CON-
SULT-III screen is touched.
SELECTIVE UNLOCK FUNC-
TION Selective unlock function mode can be changed to operate (ON) or not operate (OFF) with this
mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-III screen is
touched.
ANTI KEY LOCK IN FUNCTION Key reminder function mode can be changed to operate (ON) or not operate (OFF) with this mode.
The operation mode will be changed when “CHANGE SETT” on CONSULT-III screen is touched.
HORN WITH KEYLESS LOCK Horn reminder function mode by Intelligent Key remote control button can be changed to operate
(ON) or not operate (OFF) with this mode. The operation mode will be changed when “CHANGE
SETT” on CONSULT-III screen is touched.
HAZARD ANSWER BACK Hazard reminder function mode can be selected from the following with this mode. The operation
mode will be changed when “CHANGE SE
TT” on CONSULT-III screen is touched.
• LOCK ONLY: Door lock operation only
• UNLOCK ONLY: Door unlock operation only
• LOCK/UNLOCK: Lock/Unlock operation
• OFF: Non-operation
ANSWER BACK WITH I-KEY
LOCK Buzzer reminder function (lock operation) mode by door request switch (driver side, passenger
side and back door side) can be selected from the following with this mode. The operation mode
will be changed when “
CHANGE SETT” on CONSULT- III screen is touched.
• BUZZER: Sound buzzer
• OFF: Non-operation
ANSWER BACK WITH I-KEY UN-
LOCK Buzzer reminder function (unlock operation) mode by door request switch can be changed to op-
erate (ON) or not operate (OFF) with this mode.
AUTO RELOCK TIMER Auto door lock timer mode can select the following with this mode.
• 1 minute
• OFF: Non-operation
PANIC ALARM DELAY Panic alarm button's pressing time on Intelligent Key remote control button can be selected from
the following with this mode. The operation mode will be changed when “CHANGE SETT” on
CONSULT-III screen is touched.
• 0.5 second
• 1.5 second
• OFF: Non-operation
P/W DOWN DELAY Unlock button's pressing time on Intelligent Key remote control button can be selected from the
following with this mode. The operation mode will be changed when “CHANGE SETT” on CON-
SULT-III screen is touched.
• 3 seconds
• 5 seconds
• OFF: Non-operation
ENGINE START BY I-KEY Engine start function mode can be changed to operate (ON) or not operate (OFF) with this mode.
The operation mode will be changed when “CHANGE SETT” on CONSULT-III screen is touched.
LOCK/UNLOCK BY I-KEY Door lock/unlock function by door request switch (driver side, passenger side and back door side)
mode can be changed to operate (ON) or not operate (OFF) with this mode. The operation mode
will be changed when “
CHANGE SETT” on CONSULT- III screen is touched.
Revision: May 2010 2011 Versa

NATS (NISSAN ANTI-THEFT SYSTEM)BL-247
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-BCM
- Mechanical key
• NATS trouble diagnoses, system initialization and additional registration of other NATS mechanical key IDs
must be carried out using CONSULT-III hardware and CONSULT-III NATS software. When NATS initializa-
tion has been completed, the ID of the inserted mechanical key can be displayed.
Regarding the procedures of NATS initialization and mechanical key ID registration, refer to CONSULT-III
operation manual NATS.
SECURITY INDICATOR
• Forewarns that the vehicle is equipped with NATS.
• Security indicator will not blink while the ignition knob is in ON or START state. NOTE:
Because security indicator is highly efficient, the battery is barely affected.
Condition of Secu rity Indicator
• When operating the ignition switch with Intelligent Key, security indicator lamp will turn off at once if ignition
switch is pressed and blinks when ignition switch is released.
• When operating the ignition switch with mechanical key security indicator will turn off at once if mechanical key is inserted into key cylinder and blinks when mechanical key is removed.
(Once the mechanical key is inserted into key cylinder, BCM will only perform the key ID verification with
mechanical key)
System CompositionINFOID:0000000005929433
The function of the NATS consists of the following:
• Mechanical key
• NATS antenna amp. located in the ignition key cylinder
•BCM
• ECM (Engine control module)
• Security indicator
• Intelligent Key unit (if equipped)
NOTE:
The communication between ECM, BCM and/or Intelligent K ey unit uses the CAN communication sys-
tem.
ECM Re-communicating FunctionINFOID:0000000005929434
Performing the following procedure can automatically perform re-communication of ECM and BCM or Intelli-
gent Key unit, but only when the ECM has been replaced with a new one which has never been energized on-
board.
(In this step, initialization procedur e by CONSULT-III is not necessary)
NOTE:
• When registering new Key IDs or replacing the ECM other than brand new, refer to CONSULT-III
Operation Manual NATS.
LIIA2637E
Revision: May 2010 2011 Versa

BL-248
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
•If multiple keys are attached to the key holder, separate them before work.
• Distinguish keys with unregistered key ID from those with registered ID.
1. Install ECM.
2. Use a registered key (*), turn ignition switch to “ON”. *: To perform this step, use the key that has been used before to perform ECM replacement.
3. Maintain ignition switch in “ON” position for at least 5 seconds.
4. Turn ignition switch to “OFF”.
5. Start engine. If engine can be started, procedure is completed.
If engine cannot be started, refer to CONSULT-III Operation Manual NATS and initialize control unit.
Revision: May 2010 2011 Versa