2011 NISSAN TIIDA Engine

BL-120
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
115, "Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col- umn in this order.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is registered.
• Key is not inserted in ignition switch.
• One or more registered Intelligent Keys are in the vehicle.
KEY WARNING LAMP (RED) ILLUMINATES
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
115, "Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col- umn in this order.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is registered.
• Key is not inserted in ignition switch.
• One or more registered Intelligent Keys are in the vehicle.
KEY WARNING LAMP DOES NOT ILLUMINATE
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
115, "Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col- umn in this order.
• Check if ignition switch turns using mechanical key. If it turns, check if “ENGINE START BY I-KEY” in
“WORK SUPPORT” mode is ON.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is registered.
• Mechanical key is out of ignition switch.
• One or more registered Intelligent Keys are in the vehicle.
Symptom Diagnosis/service procedure Reference page
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp (g reen) illuminates]. 1. Check steering lock solenoid.
BL-147
2. Replace Intelligent Key unit.BL-158
SymptomDiagnosis/service procedure Reference page
Ignition switch does not turn on with Intelligent Key.
[KEY warning lamp (re d) illuminates]. 1. Check inside key antenna.
BL-146
2. Replace Intelligent Key unit.BL-158
SymptomDiagnosis/service procedureReference page
Ignition switch does not turn on with Intelligent Key.
[GREEN key warning lamp does not illuminate]. 1. Check Intelligent Key unit power supply and ground cir-
cuit. BL-126
2. Check ignition knob switch.
BL-129
3. Check key switch.BL-127
4. Check "KEY" warning lamp (GREEN). BL-155
5. Replace Intelligent Key unit. BL-158
Revision: May 2010 2011 Versa

INTELLIGENT KEY SYSTEMBL-121
< SERVICE INFORMATION >
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NON-DTC ITEM
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
115, "Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check syst ems shown in the “Diagnoses/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is registered.
• Multiple mechanical keys are not set in a keyfob. (If mechanical keys are near the ignition switch, the operation may not work properly.)
ENGINE START CONDITION CHECK
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
115, "Trouble Diagnosis Procedure".
• If the following “symptoms” are detected, check syst ems shown in the ”Diagnoses/service procedure” col-
umn in this order.
ALL FUNCTIONS OF INTELLIGENT KEY SYSTEM DO NOT OPERATE
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
115, "Trouble Diagnosis Procedure".
• Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following “symptoms” are detected, check syst ems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• “ENGINE START BY I-KEY” and “LOCK/UNLOCK BY I-KEY” are ON when setting on CONSULT-III.
• Mechanical key is out of ignition switch.
• Ignition switch is not depressed.
• All doors are closed.
• Intelligent key is registered.
RED key warning lamp does not illuminate
[Without Intelligent Key]. 1. Check "KEY" warning lamp (RED).
BL-155
2. Replace Intelligent Key unit.BL-158
SymptomDiagnosis/service procedureReference page
SymptomDiagnosis/service procedure Reference page
Non DTC Item 1. Check key switch.
BL-127
2. Check NATS antenna amp.BL-246
SymptomDiagnosis/service procedure Reference page
Engine start condition check 1. Check CVT or A/T shift selector (park position switch).
(with CVT or A/T) BL-153
2. Check key interlock solenoid (with M/T).
BL-149
3. Check stop lamp switch (with CVT or A/T).BL-150
4. Check stop lamp switch (with M/T).BL-152
Revision: May 2010 2011 Versa

BL-246
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
NATS (NISSAN ANTI-THEFT SYSTEM)
Component Parts and Harness Connector LocationINFOID:0000000005929431
System DescriptionINFOID:0000000005929432
DESCRIPTION
NOTE:
If customer reports a “No start” condition, request ALL KEYS to be brought to a Nissan dealer in case
of a NATS malfunction.
NATS (Nissan Anti-Theft System) has the following functions:
• NATS shows a higher anti-theft performance at preventing engine to be started by an unregistered key. (reg- istered key: mechanical key and Intelligent Key).
• Only a key with key ID registered in BCM and ECM c an start engine, it has a higher protection against auto
theft that duplicates keys.
• If a malfunction has been detected, security indicator will illuminate when ignition switch is in ON position.
• If the owner requires, mechanical key can be registered for up to 5 keys.
• During trouble diagnosis or when the following parts have been replaced, and if mechanical key is added,
registration* is required.
*: All mechanical keys of the vehicle should be registered.
-ECM
LIIA2920E
1. BCM M18, M20
(view with glove box removed) 2. Intelligent Key unit M52
(if equipped) 3. NATS antenna amp. M21
(inside steering column)
4. Combination meter M24 5. Security indicator lamp6. ECM E16
Revision: May 2010 2011 Versa

NATS (NISSAN ANTI-THEFT SYSTEM)BL-247
< SERVICE INFORMATION >
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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

BL-254
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
1: With Intelligent Key
2: Without Intelligent Key
3: Hatchback without Intelligent Key
4: Sedan without Intelligent Key
5: Hatchback
6: Sedan
7: With power door locks
8: With power windows
CONSULT-III FunctionINFOID:0000000005929437
CONSULT-III DIAGNOSTIC TEST MODE FUNCTION
*: When replace ECM, refer to BL-247, "ECM Re-communicating Function" .
NOTE:
• When any initialization is performed, all ID previ ously registered will be erased and all NATS mechanical
keys must be registered again.
• The engine cannot be started with an unregistered key. In this case, the system will show “DIFFERENCE OF
KEY” or “LOCK MODE” as a self-diagnos tic result on the CONSULT-III screen.
• In rare case, “CHAIN OF ECM-IMMU” might be stored as a self-diagnostic result during key registration pro-
cedure, even if the system is not malfunctioning.
NATS SELF DIAGNOSTIC RESULT ITEM CHART
63 BR Interior room lamp Output OFF Any door
switchON (open)
0V
OFF (closed) Battery voltage
65
7SB All door lock actuators
(lock) Output OFFOFF (neutral)
0V
ON (lock) Battery voltage
66
7G Front door lock actua-
tor RH, rear door lock
actuators LH/RH (un-
lock) Output OFFOFF (neutral)
0V
ON (unlock) Battery voltage
67 B Ground Input ON—0V
68
8L Power window power
supply (RAP)
Output —Ignition switch ON
Battery voltage
Within 45 seconds after igni-
tion switch OFF Battery voltage
More than 45 seconds after ig-
nition switch OFF 0V
When front door LH or RH is
open or power window timer
operates 0V
69
8P Battery power supply OutputOFF
— Battery voltage
70 Y Battery power supply Input OFF —Battery voltage
Te r m i n a l
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
Diagnostic mode
Description
C/U INITIALIZATION When replacing any of the following components, C/U initialization and re-registration of all
NATS mechanical keys are necessary.
[NATS mechanical key/ BCM/ ECM*]
SELF DIAGNOSTIC RESULT Detected items (screen terms) are as shown in the chart.
Refer to "NATS SELF-DIAGNOSTIC RESULTS ITEM CHART" .
Revision: May 2010
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NATS (NISSAN ANTI-THEFT SYSTEM)BL-255
< SERVICE INFORMATION >
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Trouble Diagnosis ProcedureINFOID:0000000005929438
PRELIMINARY CHECK
1.GET SYMPTOMS
Listen to customer complain ts request. (Get symptoms)
NOTE:
If customer reports a “No start” condition, request all Intelligent Keys to be brought to the dealer in case of
Intelligent Key system malfunction.
Intelligent Key or mechanical key service request>> Fo r further information, refer to CONSULT-III operation
manual.
Malfunctions>>GO TO 2
2.START ENGINE WITH INTELLIGENT KEY (IF EQUIPPED)
Check if the engine could be started by all registered Intelligent Keys.
The engine cannot be started by some Intelligent Keys>>Int elligent Key is low battery or malfunction. Refer
to BL-158, "
Intelligent Key Battery Replacement" .
The engine cannot be started by all Intelligent Keys >> GO TO 3
The engine can be started by all Intelligent Keys >> GO TO 4
3.CHECK “KEY” WARNING LAMP ILLUMINATION
When pushing the ignition switch, check if “KEY” warning lamp in combination meter illuminates.
KEY warning lamp illuminates green >> Refer to BL-119, "
Trouble Diagnosis Symptom Chart" .
KEY warning lamp illuminates red >> Refer to BL-119, "
Trouble Diagnosis Symptom Chart" .
Does not illuminate >> Refer to BL-119, "
Trouble Diagnosis Symptom Chart" .
4.START ENGINE WITH MECHANICAL KEY
Check if the engine could be started by all registered mechanical keys.
Detected items
[NATS program card screen terms] P No. Code
(Self-diagnostic result of “EN-
GINE”) Malfunction is detected when.....
Reference
page
CHAIN OF ECM-IMMU
[P1612] NATS MAL-
FUNCTION
P1612Communication impossible between ECM and BCM
In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is not
malfunctioning.
BL-258
DIFFERENCE OF KEY
[P1615]NATS MAL-
FUNCTION
P1615BCM can receive the key ID signal but the result of ID ver-
ification between key ID and BCM is NG.
BL-264
CHAIN OF IMMU-KEY
[P1614]NATS MAL-
FUNCTION
P1614
BCM cannot receive the key ID signal.
BL-260
ID DISCORD, IMM-ECM
[P1611]NATS MAL-
FUNCTION
P1611The result of ID verification between BCM and ECM is NG.
System initialization is required.
BL-261
LOCK MODE
[P1610]NATS MAL-
FUNCTION
P1610When the starting operation is carried out five or more
times consecutively under the following conditions, NATS
will shift the mode to one which prevents the engine from
being started.
• Unregistered mechanical key is used.
• BCM or ECM’s malfunctioning.
BL-263
DON'T ERASE BEFORE CHECK-
ING ENG DIAG
—All engine trouble codes except NATS trouble code has
been detected in ECM.
BL-255
Revision: May 2010
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BL-256
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
The engine can not be started by some mechanical keys >> Register mechanical key. Refer to CONSULT-III
operation manual.
The engine cannot be started by all mechanical keys >> "WORK FLOW" .
The engine can be started by all mechanical keys >> GO TO 5
5.PERFORM SELF-DIAGNOSIS
1. Turn ignition switch to ON by carrying the Intelligent Key.
2. Perform self-diagnosis of Intel ligent Key system with CONSULT-III.
Malfunction is detected >> Refer to BL-117, "
CONSULT-III Application Item" .
No malfunction is detected >> Refer to BL-115, "
Trouble Diagnosis Procedure" .
WORK FLOW
1.STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
OK >> System is normal.
NG >> GO TO 2
2.PERFORM SELF DIAGNOSIS
Perform NATS SELF-DIAGNOSIS using CONSULT-III.
NOTE:
NATS program card is necessary to display the “SELF-DIAGNOSIS”.
No malfunction is detected >> Recheck the starting engine section GO TO 1
Malfunction related to NATS is detected >> GO TO 3
Malfunctions related to “DON’T ERASE BEFORE CHECKING ENG DIAG” and NATS are detected >> GO
TO 7
3.IDENTIFYING NATS MALFUNCTION
Self-diagnosis results referring to NATS, but no information about engine self-diagnosis result is displayed on
CONSULT-III. Refer to BL-257, "
Trouble Diagnosis" .
>> GO TO 4
4.NATS TROUBLE DIAGNOSIS
Repair NATS (if necessary, perform “C/U INITIALIZATION” with CONSULT-III.)
>> GO TO 5
5.ERASE SELF-DIAGNOSIS
Erase the record of “SELF-DIAG NOSIS” by using CONSULT-III.
>> GO TO 6
6.STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
NG >> GO TO 2
OK >> Inspection End.
7.IDENTIFYING NATS AND ENGINE CONTROL MALFUNCTION
NATS malfunction and “DON’T ERASE BEFORE CHECKIN G ENG DIAG” are displayed on the CONSULT-III
screen.
NOTE:
Revision: May 2010 2011 Versa