
BL-236
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Symptom Chart
INFOID:0000000005929421
SYMPTOM PROCEDURE Diagnostic procedure
1 Vehicle security
system cannot be
set by ···· AII items
Diagnostic Procedure 1 (Door switch check) (Hatchback)
Refer to
BL-237, "
Diagnosis Procedure 1".
Diagnostic Procedure 7 (Door switch check) (Sedan)
Refer to BL-241, "
Diagnosis Procedure 7".
Diagnostic Procedure 8 (Trunk switch check) (Sedan)
Refer to BL-242, "
Diagnosis Procedure 8".
If the above systems are “OK”, replace BCM. Refer to BCS-19, "
Removal
and Installation of BCM".
Lock/unlock switch Diagnostic Procedure 6 (Door lock/unlock switch check)
Refer to
BL-241, "
Diagnosis Procedure 6".
If the above systems are “OK”, check main power window and door lock/un-
lock switch. Refer to GW-19
.
Door outside key (driver) Diagnostic Procedure 3 (Door key cylinder switch check)
Refer to
BL-240, "
Diagnosis Procedure 3".
If the above systems are “OK”, check main power window and door lock/un-
lock switch. Refer to GW-19
.
Intelligent key Check Intelligent Key entry function. Refer to
BL-88, "
System Description"
If the above systems are “OK”, replace BCM. Refer to BCS-19, "Removal
and Installation of BCM".
Keyfob (without Intelligent Key) Check remote keyless entry function. Refer to
BL-69, "
Preliminary Check".
If the above systems are “OK”, replace BCM. Refer to BCS-19, "
Removal
and Installation of BCM".
2 Security indicator
does not turn
“ON”.
Security indicator lamp Diagnostic Procedure 2 (Security indicator lamp check)
Refer to
BL-239, "
Diagnosis Procedure 2".
If the above systems are “OK”, replace BCM. Refer to BCS-19, "
Removal
and Installation of BCM".
3 *1 Vehicle security
system does not
alarm when ····
Any door or trunk is opened. Diagnostic Procedure 1 (Door switch check) (hatchback)
Refer to
BL-237, "
Diagnosis Procedure 1".
Diagnostic Procedure 7 (Door switch check) (Sedan)
Refer to BL-241, "
Diagnosis Procedure 7".
Diagnostic Procedure 8 (Trunk switch check) (Sedan)
Refer to BL-242, "
Diagnosis Procedure 8".
If the above systems are “OK”, replace BCM. Refer to BCS-19, "
Removal
and Installation of BCM".
4 Vehicle security
alarm does not ac-
tivate. Horn alarm
Diagnostic Procedure 4 (Vehicle security horn alarm check).
Refer to
BL-240, "
Diagnosis Procedure 4".
If the above systems are “OK”, check horn system.
Refer to WW-40
.
Head lamp alarm Diagnostic Procedure 5 (Head lamp alarm check).
Refer to
BL-240, "
Diagnosis Procedure 5".
If the above systems are “OK”, replace BCM. Refer to BCS-19, "
Removal
and Installation of BCM".
Revision: May 2010 2011 Versa

VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-237
< SERVICE INFORMATION >
C
DE
F
G H
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M A
B
BL
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*1 : Make sure the system is in the armed phase.
Diagnosis Procedure 1INFOID:0000000005929422
1-1 DOOR SWITCH CHECK (HATCHBACK)
1.CHECK DOOR SWITCHES INPUT SIGNALWith CONSULT-III
Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR
SW") in DATA MONITOR mode with CONSULT–III. Refer to BL-41, "
CONSULT-III Function (BCM)".
• When doors are open:
• When doors are closed:
Without CONSULT-III
Check voltage between BCM connector M18 or M19 terminals 12, 13, 43, 47, 48 and ground.
5 Vehicle security
system cannot be
canceled by ···· Door outside key (driver)
Diagnostic Procedure 3 (Door key cylinder switch check).
Refer to BL-240, "
Diagnosis Procedure 3".
If the above systems are “OK”, check main power window and door lock/un-
lock switch. Refer to GW-19
.
Trunk key cylinder switch (se-
dan) Diagnostic Procedure 9 (Trunk key cylinder switch check) (Sedan)
Refer to BL-244, "
Diagnosis Procedure 9".
Intelligent key Check Intelligent Key entry function. Refer to
BL-88, "
System Description"
If the above systems are “OK”, replace BCM. Refer to BCS-19, "Removal
and Installation of BCM".
Keyfob (without Intelligent Key) Check remote keyless entry function. Refer to
BL-69, "
Preliminary Check".
If the above systems are “OK”, replace BCM. Refer to BCS-19, "
Removal
and Installation of BCM".
SYMPTOM
PROCEDURE Diagnostic procedure
DOOR SW-DR : ON
DOOR SW-AS : ON
DOOR SW-RL : ON
DOOR SW-RR : ON
BACK DOOR SW : ON
DOOR SW-DR : OFF
DOOR SW-AS : OFF
DOOR SW-RL : OFF
DOOR SW-RR : OFF
BACK DOOR SW : OFF
Connector ItemTe r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
LIIA1041E
Revision: May 2010 2011 Versa

BL-250
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
Terminal and Reference Value for BCM
INFOID:0000000006215781
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
2BR Combination switch
input 5
Input ONLighting, turn, wiper OFF
Wiper dial position 4
3GR Combination switch
input 4 Input ONLighting, turn, wiper OFF
Wiper dial position 4
4L Combination switch
input 3
Input ONLighting, turn, wiper OFF
Wiper dial position 4
5G Combination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6V Combination switch
input 1
7
7BR Front door key cylin-
der switch LH (unlock) Input
OFFON (open, 2nd turn)
Momentary 1.5V
OFF (closed) 0V
8
7Y Front door key cylin-
der switch LH (lock) InputOn (open)
Momentary 1.5V
OFF (closed) 0V
9W Rear window defogger
switch Input ONRear window defogger switch
ON
0V
Rear window defogger switch
OFF 5V
10 R Defrost A/C switch sig-
nal
Input ONA/C switch OFF
5V
A/C switch ON 0V
11 L Ignition switch (ACC
or ON) InputACC or
ON Ignition switch ACC or ON
Battery voltage
12 SB Front door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
13 GR Rear door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
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
2011 Versa
![NISSAN TIIDA 2011 Service Repair Manual EC-20
< BASIC INSPECTION >[HR16DE]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
BASIC INSPECTION
BASIC INSPECTION : Special Repair RequirementINFOID:0000000005929746
1.INSPECTION START
1. Check NISSAN TIIDA 2011 Service Repair Manual EC-20
< BASIC INSPECTION >[HR16DE]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
BASIC INSPECTION
BASIC INSPECTION : Special Repair RequirementINFOID:0000000005929746
1.INSPECTION START
1. Check](/manual-img/5/57396/w960_57396-1313.png)
EC-20
< BASIC INSPECTION >[HR16DE]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
BASIC INSPECTION
BASIC INSPECTION : Special Repair RequirementINFOID:0000000005929746
1.INSPECTION START
1. Check service records for any recent repairs that ma y indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
- Harness connectors for improper connections
- Wiring harness for improper connections, pinches and cut
- Vacuum hoses for splits, kinks and improper connections
- Hoses and ducts for leaks
- Air cleaner clogging
- Gasket
3. Confirm that electrical or mechanical loads are not applied.
- Headlamp switch is OFF.
- Air conditioner switch is OFF.
- Rear window defogger switch is OFF.
- Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no load.
6. Make sure that no DTC is displayed with CONSULT-III or GST.
Is any DTC detected?
YES >> GO TO 2.
NO >> GO TO 3.
2.REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3
3.CHECK IDLE SPEED
1. Run engine at about 2,000 rpm for about 2 minutes under no load.
SEF983U
SEF976U
SEF977U
Revision: May 2010 2011 Versa
![NISSAN TIIDA 2011 Service Repair Manual EC-26
< BASIC INSPECTION >[HR16DE]
INSPECTION AND ADJUSTMENT
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
IDLE AIR VO NISSAN TIIDA 2011 Service Repair Manual EC-26
< BASIC INSPECTION >[HR16DE]
INSPECTION AND ADJUSTMENT
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
IDLE AIR VO](/manual-img/5/57396/w960_57396-1319.png)
EC-26
< BASIC INSPECTION >[HR16DE]
INSPECTION AND ADJUSTMENT
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
IDLE AIR VOLUME LEARNING
: Special Repair RequirementINFOID:0000000005929760
1.PRECONDITIONING
Make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the follo wing conditions are missed for even a moment.
• Battery voltage: More than 12.9 V (At idle)
• Engine coolant temperature: 70 - 100 °C (158 - 212° F)
• Selector lever: P or N (A/T), Neutral (M/T)
• Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is
started the headlamp will not be illuminated.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- A/T models
• With CONSULT-III: Drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “TRANSMISSION”
system indicates less than 0.9 V.
• Without CONSULT-III: Drive vehicle for 10 minutes.
- M/T models
• Drive vehicle for 10 minutes.
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 3.
2.IDLE AIR VOLUME LEARNING
With CONSULT-III
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-25, "
ACCELERATOR PEDAL
RELEASED POSITION LEARNING : Special Repair Requirement".
2. Perform Throttle Valve Closed Position Learning. Refer to EC-25, "
THROTTLE VALVE CLOSED POSI-
TION LEARNING : Special Repair Requirement".
3. Start engine and warm it up to normal operating temperature.
4. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
5. Touch “START” and wait 20 seconds.
Is
“CMPLT” displayed on CONSULT-III screen?
YES >> GO TO 4.
NO >> GO TO 5.
3.IDLE AIR VOLUME LEARNING
Without CONSULT-III
NOTE:
• It is better to count the ti me accurately with a clock.
• It is impossible to switch the di agnostic mode when an accelerator pedal position sensor circuit has
a malfunction.
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-25, "
ACCELERATOR PEDAL
RELEASED POSITION LEARNING : Special Repair Requirement".
2. Perform Throttle Valve Closed Position Learning. Refer to EC-25, "
THROTTLE VALVE CLOSED POSI-
TION LEARNING : Special Repair Requirement".
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quickly five times within 5 seconds.
- Fully depress the accelerator pedal.
- Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops
blinking and turned ON.
8. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
Revision: May 2010 2011 Versa
![NISSAN TIIDA 2011 Service Repair Manual DIAGNOSIS SYSTEM (ECM)EC-109
< FUNCTION DIAGNOSIS > [HR16DE]
C
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EC
NP
OA/F ALPHA-B1
%• The mean value of the air-fuel ratio feedback correc-
tion factor per cycle is indicated. NISSAN TIIDA 2011 Service Repair Manual DIAGNOSIS SYSTEM (ECM)EC-109
< FUNCTION DIAGNOSIS > [HR16DE]
C
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EC
NP
OA/F ALPHA-B1
%• The mean value of the air-fuel ratio feedback correc-
tion factor per cycle is indicated.](/manual-img/5/57396/w960_57396-1402.png)
DIAGNOSIS SYSTEM (ECM)EC-109
< FUNCTION DIAGNOSIS > [HR16DE]
C
D
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G H
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EC
NP
OA/F ALPHA-B1
%• The mean value of the air-fuel ratio feedback correc-
tion factor per cycle is indicated. • When the engine is stopped, a certain
value is indicated.
• This data also includes the data for the air-fuel ratio learning control.
• When engine is running specification
range is indicated in “SPEC”.
COOLAN TEMP/S °C or °F • The engine coolant temperature (determined by the
signal voltage of the engine coolant temperature sen-
sor) is displayed. • When the engine coolant temperature
sensor is open or short-circuited,
ECM enters fail-safe mode. The en-
gine coolant temperature determined
by the ECM is displayed.
A/F SEN1 (B1) V• The A/F signal computed from the input signal of the
air fuel ratio (A/F) se nsor 1 is displayed.
HO2S2 (B1) V• The signal voltage of the heated oxygen sensor 2 is
displayed.
HO2S2 MNTR(B1) RICH/
LEAN • Display of heated oxygen sensor 2 signal:
RICH: means the amount of oxygen after three way
catalyst is relatively small.
LEAN: means the amount of oxygen after three way
catalyst is relatively large. • When the engine is stopped, a certain
value is indicated.
VHCL SPEED SE km/h or
mph • The vehicle speed computed from the vehicle speed
signal sent from combination meter is displayed.
BATTERY VOLT V • The power supply voltage of ECM is displayed.
ACCEL SEN 1 V• The accelerator pedal position sensor signal voltage is
displayed. • ACCEL SEN 2 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.
ACCEL SEN 2
TP SEN 1-B1
V• The throttle position sensor signal voltage is dis-
played. • TP SEN 2-B1 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.
TP SEN 2-B1
FUEL T/TMP SE
°C or °F • The fuel temperature (determined by the signal volt-
age of the fuel tank temperature sensor) is displayed.
INT/A TEMP SE °C or °F • The intake air temperature (determined by the signal
voltage of the intake air temperature sensor) is indicat-
ed.
EVAP SYS PRES V • The signal voltage of EVAP control system pressure
sensor is displayed.
FUEL LEVEL SE V • The signal voltage of the fuel level sensor is displayed.
START SIGNAL ON/OFF • Indicates start signal status [ON/OFF] computed by
the ECM according to the signals of engine speed and
battery voltage. • After starting the engine, [OFF] is dis-
played regardless of the starter sig-
nal.
CLSD THL POS ON/OFF • Indicates idle position [ON/OFF] computed by ECM
according to the accelerator pedal position sensor sig-
nal.
AIR COND SIG ON/OFF • Indicates [ON/OFF] condition of the air conditioner
switch determined by the air conditioner ON signal.
P/N POSI SW ON/OFF • Indicates [ON/OFF] condit
ion from the park/neutral
position (PNP) signal.
PW/ST SIGNAL ON/OFF • [ON/OFF] condition of the power steering system (de-
termined by the signal sent from EPS control unit) is
indicated.
LOAD SIGNAL ON/OFF • Indicates [ON/OFF] condition from the electrical load
signal.
ON: Rear window defogger switch is ON and/or light-
ing switch is in 2nd position.
OFF: Both rear window defogger switch and lighting
swi t
ch
are OFF.
Monitored item Unit
DescriptionRemarks
Revision: May 2010 2011 Versa
![NISSAN TIIDA 2011 Service Repair Manual EC-114
< COMPONENT DIAGNOSIS >[HR16DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
COMPONENT DIAGNOSIS
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
DescriptionINFOID:0000000005929795
The specification (SP) val NISSAN TIIDA 2011 Service Repair Manual EC-114
< COMPONENT DIAGNOSIS >[HR16DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
COMPONENT DIAGNOSIS
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
DescriptionINFOID:0000000005929795
The specification (SP) val](/manual-img/5/57396/w960_57396-1407.png)
EC-114
< COMPONENT DIAGNOSIS >[HR16DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
COMPONENT DIAGNOSIS
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
DescriptionINFOID:0000000005929795
The specification (SP) value indicates the tolerance of
the value that is displayed in “SPEC” of “DATA MONI-
TOR” mode of CONSULT-III during normal operation of the Engine Control System. When the value in “SPEC”
of “DATA MONITOR” mode is within the SP value, the Engine Control System is confirmed OK. When the
value in “SPEC” of “DATA MONITOR” mode is NOT withi n the SP value, the Engine Control System may have
one or more malfunctions.
The SP value is used to detect malfunctions that may af fect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:
• B/FUEL SCHDL (The fuel injection pulse width progr ammed into ECM prior to any learned on board correc-
tion)
• A/F ALPHA-B1 (The mean value of air-fuel ratio feedback correction factor per cycle)
• MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Component Function CheckINFOID:0000000005929796
1.START
Make sure that all of the following conditions are satisfied.
• Vehicle driven distance: More than 5,000 km (3,107 miles)
• Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm
2, 14.25 - 15.12 psi)
• Atmospheric temperature: 20 - 30 °C (68 - 86° F)
• Engine coolant temperature: 75 - 95 °C (167 - 203° F)
• Transmission: Warmed-up
- A/T models: After the engine is warmed up to norma l operating temperature, drive vehicle until “FLUID
TEMP SE” (A/T fluid te mperature sensor signal) indicates more than 60 °C (140 °F).
- M/T models: After the engine is warmed up to normal operating temperature, drive vehicle for 5 minutes.
• Electrical load: Not applied
- Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight
ahead.
• Engine speed: Idle
>> GO TO 2.
2.PERFORM “SPEC” OF “DATA MONITOR” MODE
With CONSULT-III
NOTE:
Perform “SPEC” in “DATA MONITOR” mode in maximum scale display.
1. Perform EC-20, "
BASIC INSPECTION : Special Repair Requirement".
2. Select “B/FUEL SCHDL”, “A/F ALPHA-B1” and “MAS A/F SE-B1” in “SPEC” of “DATA MONITOR” mode
with CONSULT-III.
3. Make sure that monitor items are within the SP value.
Is the inspection result normal?
YES >> END
NO >> Go to EC-115, "
Diagnosis Procedure".
Revision: May 2010 2011 Versa