2011 NISSAN LATIO ignition

BL-260
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
5.REPLACE BCM
1. Replace BCM. Refer to BCS-19, "
Removal and Installation of BCM".
2. Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS”.
Does the engine start?
Yes >> BCM is malfunctioning. • Replace BCM. Refer to BCS-19, "
Removal and Installation of BCM" .
• Perform initialization with CONSULT-III
• For initialization, refer to “CONSULT-III Operation Manual NATS”
No >> ECM is malfunctioning. • Replace ECM.
• Perform initialization or re-communicating function
• For initialization, refer to “CONSULT-III Operation Manual NATS”
• For re-communicating function, refer to BL-247, "
ECM Re-communicating Function"
Diagnosis Procedure 2INFOID:0000000005929441
Self-diagnostic results:
“CHAIN OF IMMU-KEY” displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF IMMU-KEY” displayed on CONSULT-III screen.
Is
“CHAIN OF IMMU-KEY” displayed?
Ye s > > G O T O 2
No >> GO TO BL-257, "
Trouble Diagnosis" .
2.CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to BL-264, "
How to Replace NATS Antenna Amp" .
OK or NG
OK >> GO TO 3
NG >> Reinstall NATS antenna amp. correctly.
3.CHECK NATS IGNITION KEY ID CHIP
Start engine with another registered NATS ignition key.
Does the engine start?
Yes >> Ignition key ID chip is malfunctioning. • Replace the ignition key
• Perform initialization with CONSULT-IIIFor initialization, refer to “CONSULT-III Operation Manual NATS”
No >> GO TO 4
4.CHECK POWER SUPPLY FO R NATS ANTENNA AMP.
1. Turn ignition switch “OFF”.
2. Check voltage between NATS antenna amp. connector and ground.
OK or NG
OK >> GO TO 5
NG >> Check the following. • 20A fuse [No. 53, located in IPDM E/R]
• Harness for open or short between fuse and NATSantenna amp.
5.CHECK NATS ANTENNA AMP. SIGNAL LINE- 1
Check voltage between NATS antenna amp. connector and ground with analog tester.
NATS antenna amp. connector Te r m i n a l
Voltage [V]
(Approx.)
(+) (–)
M21 1Ground Battery voltage
PIIB6589E
Revision: May 2010 2011 Versa

NATS (NISSAN ANTI-THEFT SYSTEM)BL-261
< SERVICE INFORMATION >
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OK or NG
OK >> GO TO 6
NG >> • Check harness for open or short between NATS antenna amp. and BCM. NOTE:
If harness is OK, replace BCM, perform initialization with CONSULT-III. For initialization, refer to
“CONSULT-III Operation Manual NATS”.
6.CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector and ground with analog tester.
OK or NG
OK >> GO TO 7
NG >> • Check harness for open or short between NATS antenna amp. and BCM. NOTE:
If harness is OK, replace BCM, perform initialization with CONSULT-III. For initialization, refer to
“CONSULT-III Operation Manual.
7.CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect NATS antenna amp. connector.
3. Check continuity between NATS antenna amp. connector and ground.
OK or NG
OK >> NATS antenna amp. is malfunctioning, reinstall antenna or replace it.
NG >> Repair or replace NATS antenna amp. ground circuit.
Diagnosis Procedure 3INFOID:0000000005929442
Self-diagnostic results:
“ID DISCORD, IMM-ECM” disp layed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “ID DISCO RD, IMM-ECM” displayed on CONSULT-III screen.
NOTE:
NATS anten-
na amp.
connector Te r m i n a l
Conditions Status of
Voltage and tester
(+) (–)
M21 2 Ground Before tuning igni-
tion switch to ON Approx. 0 [V]
Right after tuning
ignition switch to
ON Pointer of tester
should move
PIIB6590E
NATS anten- na amp.
connector Te r m i n a l
Conditions Status of
Voltage and tester
(+) (–)
M21 4 Ground Before tuning igni-
tion switch to ON Approx. 0 [V]
Right after tuning
ignition switch to
ON Pointer of tester
should move
PIIB6591E
NATS antenna amp.
connector Te r m i n a l
Continuity
(+) (–)
M21 3Ground Yes
PIIB6592E
Revision: May 2010 2011 Versa

BL-262
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
“ID DISCORD IMM-ECM”:
Registered ID of BCM is in discord with that of ECM.
Is
“ID DISCORD IMM-ECM” displayed?
Ye s > > G O T O 2
No >> GO TO BL-257, "
Trouble Diagnosis" .
2.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONSULT-III. Re-register all NATS ignition key IDs.
For initialization, refer to “CONSULT-III Operation Manual NATS”.
NOTE:
If the initialization is not completed or ma lfunctions, CONSULT-III shows message on the screen.
Can the system be initialized?
Yes >> • Start engine. (END) • (System initialization had not been completed.)
No >> ECM is malfunctioning. • Replace ECM.
• Perform initialization with CONSULT-III
For initialization, refer to “CONSULT-III Operation Manual NATS”
Diagnosis Procedure 4INFOID:0000000005929443
“COMBINATION METER (SECURITY) DOES NOT LIGHT UP”
1.CHECK FUSE
Check 10A fuse [No.13, located in the fuse block (J/B)]
OK or NG
OK >> GO TO 2
NG >> Replace fuse.
2.CHECK COMBINATION METER (SECURITY)
1. Install 10A fuse.
2. Start engine and turn ignition switch OFF.
3. Check if the combination meter (security) lights up.
OK or NG
OK >> Inspection End.
NG >> GO TO 3
3.CHECK COMBINATION METER (SECURITY) POWER SUPPLY CIRCUIT
1. Disconnect combination meter (security) connector.
2. Check voltage between combination meter (security) connector and ground.
OK or NG
OK >> GO TO 4
NG >> Check harness for open or short between fuse and com- bination meter (security).
4.CHECK BCM FUNCTION
1. Connect combination meter (security) connector.
2. Disconnect BCM connector.
3. Check voltage between BCM connector and ground. Combination meter (security) should light up.
Combination meter
(security) connec-
tor Te r m i n a l
Voltage [V]
(Approx.)
(+) (-)
M24 27Ground Battery voltage
PIIB6593E
Revision: May 2010 2011 Versa

NATS (NISSAN ANTI-THEFT SYSTEM)BL-263
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OK or NG
OK >> BCM is malfunctioning. • Replace BCM. Refer to BCS-19, "
Removal and Instal-
lation of BCM" .
• Perform initialization with CONSULT-III
• For initialization, refer to “CONSULT-III Operation Manual.
NG >> Check the following. • Harness for open or short between combination meter (security) and BCM
• Indicator lamp condition
Diagnosis Procedure 5INFOID:0000000005929444
Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “LOCK MODE” is displayed on CONSULT-III screen.
Is
“LOCK MODE” displayed?
Yes >> GO TO 2
No >> GO TO BL-257, "
Trouble Diagnosis" .
2.ESCAPE FROM LOCK MODE
1. Turn ignition switch OFF.
2. Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.
3. Return the key to OFF position. Wait 5 seconds.
4. Repeat steps 2 and 3 twice (total of three cycles).
5. Start the engine.
Does engine start?
Yes >> System is OK (Now system is escaped from “LOCK MODE”).
No >> GO TO 3
3.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual.
NOTE:
If the initialization is not completed or malf unctions, CONSULT-III shows the message on the screen.
Can the system be initialized?
Yes >> System is OK.
No >> GO TO 4
4.PERFORM INITIALIZATION WITH CONSULT-III AGAIN
1. Replace BCM.
2. Perform initialization with CONSULT-III. For initialization, refer to “CON SULT-III Operation Manual NATS”.
NOTE:
If the initialization is not completed or malf unctions, CONSULT-III shows the message on the screen.
Can the system be initialized?
Yes >> System is OK. (BCM is malfunctioning.)
No >> ECM is malfunctioning. • Replace ECM.
• Perform initialization with CONSULT-III
• For initialization, refer to “CONSULT-III Operation Manual NATS”
BCM connector Terminal
Voltage [V]
(Approx.)
(+) (-)
M18 23Ground Battery voltage
PIIB6594E
Revision: May 2010 2011 Versa

BL-264
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
Diagnosis Procedure 6
INFOID:0000000005929445
Self-diagnostic results:
“DIFFERENCE OF KEY” disp layed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESU LTS “DIFFERENCE OF KEY” displayed on CONSULT-III screen.
Is
“DIFFERENCE OF KEY” displayed?
YES >> GO TO 2
NO >> GO TO BL-257, "
Trouble Diagnosis".
2.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONSULT-III. Re-register all NATS ignition key IDs.
For initialization and registration of NATS ignition key IDs, refer to CONSULT-III Operation Manual.
NOTE:
If the initialization is not completed or ma lfunctions, CONSULT-III shows message on the screen.
Can the system be initialized and can the engine be started with re-registered NATS ignition key?
YES >> • Ignition key ID was unregistered.
NO >> • BCM is malfunctioning. • Replace BCM. Refer to BCS-19, "
Removal and Installation of BCM".
• Perform initialization with CONSULT-III.
• For initialization, refer to CONSULT-III Operation Manual.
How to Replace NATS Antenna AmpINFOID:0000000005929446
NOTE:
• If NATS antenna amp. is not installed correctly, NATS system
will not operate properly and SELF-DIAG RESULTS on CON-
SULT-III screen will show “LOCK MODE” or “CHAIN OF IMMU-
KEY”.
• Initialization is not necessary only when NATS antenna amp.
is replaced with a new one.
SIIA1683E
Revision: May 2010 2011 Versa

BR-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005928385
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:0000000005928386
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.
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PRECAUTIONSBR-3
< SERVICE INFORMATION >
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5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Precaution for Brake SystemINFOID:0000000005928387
• Refill using recommended brake fluid. Refer to MA-14.
• Never reuse drained brake fluid.
• Be careful not to splash brake fluid on painted surface of body. If brake fluid is splashed on painted surfaces of body immediately wipe it off with cloth and then wash it away with water.
• To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use new brake fluid.
• Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
• Use a flare nut wrench when removing a brake tube and use a flare nut torque wrench when installing a brake tube.
• When installing brake tubes and hoses, be sure to check torque.
• Before working, turn igniti on switch OFF and disconnect connec-
tors of ABS actuator and electric unit (control unit) or the battery
cable from the negative terminal.
• Burnish the new braking surfaces after refinishing or replacing drums or rotors, after replacing p ads or linings, or if a soft pedal
occurs at very low mileage. Refer to BR-34, "
Brake Burnishing
Procedure" .
SBR686C
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BRC-2
System Component ................................................42
ABS Function ....................................... ...................42
EBD Function ...................................................... ...42
TCS Function ..........................................................43
VDC Function .........................................................43
Wheel Sensors .......................................................43
Fail-Safe Function ..................................................43
Hydraulic Circuit Diagram .......................................44
CAN COMMUNICATION ...................................45
System Description .................................................45
TROUBLE DIAGNOSIS .....................................46
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ................................................... ...
46
Component Parts and Harness Connector Loca-
tion ..........................................................................
49
Schematic ...............................................................51
Wiring Diagram - VDC - ..........................................52
Basic Inspection .....................................................56
Warning Lamp and Indicator Timing .......................57
Control Unit Input/Output Signal Standard .............57
CONSULT-III Function (ABS) .................................60
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS ............................................... ...
67
Wheel Sensor System Inspection ...........................67
Engine System Inspection ................................... ...68
ABS/TCS/VDC Control Unit Inspection ..................68
Steering Angle Sensor System Inspection .......... ...69
Yaw Rate/Side/Decel G Sensor System Inspec-
tion ....................................................................... ...
70
Solenoid and VDC Change-Over Valve System
Inspection ...............................................................
72
Actuator Motor, Motor Relay, and Circuit Inspec-
tion ....................................................................... ...
73
Stop Lamp Switch System Inspection ....................74
ABS/TCS/VDC Control Unit Power and Ground
Systems Inspection .............................................. ...
75
Brake Fluid Level Switch System Inspection ..........76
Pressure Sensor System Inspection .......................77
Transmission Range Switch System Inspection .. ...78
CAN Communication System Inspection ................79
Component Inspection ............................................79
TROUBLE DIAGNOSES FOR SYMPTOMS .....81
ABS Works Frequently ............................................81
Unexpected Pedal Action ..................................... ...81
Long Stopping Distance ..........................................82
ABS Does Not Work ...............................................82
Pedal Vibration or ABS Op eration Noise ................82
ABS Warning Lamp Does Not Come On When Ig-
nition Switch Is Turned On ................................... ...
83
ABS Warning Lamp Stays On When Ignition
Switch Is Turned On ............................................ ...
83
Vehicle Jerks During TCS/VDC Activation ..............84
ON-VEHICLE SERVICE ....................................85
Adjustment of Steering Angle Sensor Neutral Po-
sition ..................................................................... ...
85
WHEEL SENSORS ............................................86
Removal and Installation .........................................86
SENSOR ROTOR ........................................... ...88
Removal and Installation .........................................88
ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ................................................................ ...
89
Removal and Installation .........................................89
STEERING ANGLE SENSOR ........................ ...91
Removal and Installation .........................................91
G SENSOR ........................................................92
Removal and Installation .........................................92
Revision: May 2010 2011 Versa