2011 NISSAN LATIO lock

EC-510
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PRECAUTIONS
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006341690
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:0000000006341691
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.
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.)
Revision: May 2010 2011 Versa

PRECAUTIONSEC-511
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6. Perform a self-diagnosis check of al
l control units using CONSULT-III.
Precaution for Procedure without Cowl Top CoverINFOID:0000000006341692
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnosis (OBD) Syst em of Engine and A/T, CVTINFOID:0000000006341693
The ECM has an on board diagnostic system . It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition sw itch OFF and disconnect the battery ground cable before any repair or
inspection work. The open/short circuit of relate d switches, sensors, solenoid valves, etc. will cause
the MIL to light up.
• Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to PG-65
.
• Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MIL to li ght up due to the short circuit.
• Be sure to connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the fuel injection system, etc.
• Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and TCM (Transmission control module) before returning the vehicle to the customer.
PrecautionINFOID:0000000006341694
•Always use a 12 volt battery as power source.
• Do not attempt to disconnect battery cables while engine is
running.
• Before connecting or disc onnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative bat-
tery cable. Failure to do so may damage the ECM because
battery voltage is applied to ECM even if ignition switch is
turned OFF.
• Before removing parts, turn ig nition switch OFF and then dis-
connect negative battery cable.
• Do not disassemble ECM.
• If battery cable is disconnected, the memory will return to the
initial ECM values.
The ECM will now start to self-c ontrol at its initial values.
Engine operation can vary slightly in this case. However, this
is not an indication of a malf unction. Do not replace parts
because of a slight variation.
• If the battery is disconnected, the following emission-related
diagnostic information will be lost within 24 hours.
- Diagnostic trouble codes
- 1st trip diagnostic trouble codes
PIIB3706J
SEF289H
PBIA9222J
Revision: May 2010 2011 Versa

EVAPORATIVE EMISSION SYSTEMEC-529
< SERVICE INFORMATION > [MR18DE]
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Check EVAP canister as follows:
1. Block port
(B).
2. Blow air into port (A) and confirm that it flows freely out of port
(C) .
3. Release blocked port (B).
4. Apply vacuum pressure to port (B) and confirm that vacuum
pressure exists at the ports (A) and ( C).
5. Block port (A) and ( B).
6. Apply pressure to port (C) and check that there is no leakage.
FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FILLER CAP)
1. Wipe clean valve housing.
2. Check valve opening pressure and vacuum.
3. If out of specificat ion, replace fuel filler cap as an assembly.
CAUTION:
Use only a genuine fuel filler cap as a replacement. If an incor-
rect fuel filler cap is used, the MIL may come on.
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-829, "Component Inspection".
FUEL TANK TEMPERATURE SENSOR
Refer to EC-773, "Component Inspection".
EVAP CANISTER VENT CONTROL VALVE
Refer to EC-840, "Component Inspection".
EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-850, "Component Inspection".
EVAP SERVICE PORT
PBIB1212E
SEF445Y
Pressure: 15.3 - 20.0 kPa
(0.156 - 0.204 kg/cm
2, 2.22 - 2.90 psi)
Vacuum: −6.0 to −3.4 kPa
(− 0.061 to −0.035 kg/cm
2, −0.87 to −0.48 psi)
SEF943S
Revision: May 2010 2011 Versa

ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-537
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DRAIN FILTER
1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.
4. Blow air into port A and check that it flows freely out of port B.
5. Block port B.
6. Blow air into port A and check that there is no leakage.
7. If NG, replace drain filter.
1. Filler tube
2. Recirculation line3. EVAP/ORVR line
4. Vacuum/pressure handy pump 5. Fuel tank
BBIA0694E
PBIB3641E
Revision: May 2010 2011 Versa

EC-544
< SERVICE INFORMATION >[MR18DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ECM
P0607 0607 —1 (CVT)
1 (A/T)
2 (M/T) ×
(CVT)
× (A/T)
— (M/T) B
EC-895
SENSOR POWER/CIRC P0643 0643 — 1 ×BEC-898
T/M RANGE SENSOR A P0705 0705 — 2 ×BAT- 9 0
(A/T)
CVT-62

(CVT)
FLUID TEMP SENSOR A*
9P0710 0710 — 2 (A/T)
1 (CVT) ×
BAT- 9 5
(A/T)
CVT-67

(CVT)
INPUT SPEED SENSOR A P0715 0715 — 2 ×BCVT-72
OUTPUT SPEED SENSOR*8P0720 0720 — 2 ×BAT- 1 0 0
(A/T)
CVT-76

(CVT)
ENGINE SPEED P0725 0725 — 2 ×BCVT-81
1GR INCORRECT RATIO*9P0731 0731 — 2 ×BAT- 1 0 9
2GR INCORRECT RATIO*9P0732 0732 — 2 ×BAT- 11 2
3GR INCORRECT RATIO*9P0733 0733 — 2 ×BAT- 11 5
4GR INCORRECT RATIO*9P0734 0734 — 2 ×BAT- 11 8
TORQUE CONVERTER P0740 0740 — 2 ×BAT- 1 2 3
(A/T)
CVT-84

(CVT)
TORQUE CONVERTER P0744 0744 — 2 ×BAT- 1 2 8
(A/T)
CVT-89

(CVT)
PC SOLENOID A P0745 0745 — 2 ×BAT- 1 3 3
(A/T)
CVT-91

(CVT)
PC SOLENOID A P0746 0746 — 1 ×BCVT-96
SHIFT SOLENOID A P0750 0750 — 1 ×BAT- 1 3 8
SHIFT SOLENOID B P0755 0755 — 1 ×BAT- 1 4 3
PC SOLENOID B P0776 0776 — 2 ×BCVT-98
PC SOLENOID B P0778 0778 — 2 ×BCVT-100
FLUID PRESS SEN/SW A P0840 0840 — 2 ×BCVT-105
P-N POS SW/CIRCUIT P0850 0850 — 2 ×BEC-903
C L O S E D L O O P - B 1 P 11 4 8 11 4 8 — 1 ×AEC-909
TCS C/U FUNCTN P1211 1211 — 2 — —EC-910
TCS/CIRC P1212 1212 — 2 — —EC-911
ENG OVER TEMP P1217 1217 — 1 ×BEC-912
CTP LEARNING-B1 P1225 1225 — 2 — —EC-921
CTP LEARNING-B1 P1226 1226 — 2 — —EC-923
ASCD SW P1564 1564 — 1 — —EC-925
ASCD BRAKE SW P1572 1572 — 1 — —EC-931
ASCD VHL SPD SEN P1574 1574 — 1 — —EC-940
LOCK MODE P1610 1610 — 2 — —BL-257
ID DISCORD,IMMU-ECM P1611 1611 — 2 — —BL-257
Items
(CONSULT-III screen terms) DTC*
1
SRT
code Trip MIL Permanent
DTC
group
*4Reference
CONSULT-III
GST*
2ECM*3
Revision: May 2010 2011 Versa

EC-566
< SERVICE INFORMATION >[MR18DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON with-
out the engine running. This is a bulb check.
If the MIL does not light up, refer to DI-21
or see EC-1033.
2. When the engine is started, the MIL should go off. If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
ON BOARD DIAGNOSTIC SYSTEM FUNCTION
The on board diagnostic system has the following three functions.
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by MIL lighting up when there is
malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine cont rol system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected, and demands the
driver to repair the malfunction.
MIL Flashing Without DTC
When any SRT codes are not set, MIL may fl ash without DTC. For the details, refer to EC-542, "Emission-
related Diagnostic Information".
HOW TO SWITCH DIAGNOSTIC TEST MODE
NOTE:
•It is better to count the ti me accurately with a clock.
SEF217U
Diagnostic Test
Mode KEY and ENG.
Statu s Function
Explanation of Function
Mode I Ignition switch in
ON position
Engine stopped BULB CHECK
This function checks the MIL bulb for damage (blown, open
circuit, etc.).
If the MIL does not come on, check MIL circuit.
Engine running MALFUNCTION WARNING This is a usual driving condition. When a malfunction is de-
tected twice in two consecutive driving cycles (two trip de-
tection logic), the MIL will light up to inform the driver that a
malfunction has been detected.
The following malfunctions will light up or blink the MIL in
the 1st trip.
• Misfire (Possible three way catalyst damage)
• One trip detection diagnoses
Mode II Ignition switch in
ON position
Engine stopped SELF-DIAGNOSTIC
RESULTS
This function allows DTCs an
d 1st trip DTCs to be read.
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Revision: May 2010 2011 Versa

BASIC SERVICE PROCEDUREEC-581
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• 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
- Models with CONSULT-III (A/T and CVT models)
• Drive vehicle until “FLUID TEMP SE” in “DATA MONI TOR” mode of “A/T” or “CVT” system indicates less
than 0.9 V.
- Models without CONSULT-III (A/T and CVT models) and M/T models
• Drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-III
1. Perform EC-580, "Accelerator Pedal Released Position Learning".
2. Perform EC-580, "
Throttle Valve Closed Position Learning".
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREP ARATION (previously mentioned) are in good order.
5. Select “IDLE AIR VOL LEA RN” in “WORK SUPPORT” mode.
6. Touch “START” and wait 20 seconds.
7. Make sure that “CMPLT” is displayed on CONSULT-III screen. If “CMPLT” is not displayed, Idle Air Vol-
ume Learning will not be carried out successfully. In this case, find the cause of the incident by referring to
the DIAGNOSTIC PROCEDURE below.
8. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.
Refer to EC-574, "
Basic Inspection".
Without CONSULT-III
NOTE:
•It is better to count the time 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 EC-580, "
Accelerator Pedal Released Position Learning".
2. Perform EC-580, "
Throttle Valve Closed Position Learning".
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREP ARATION (previously mentioned) are in good order.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
7. Repeat the following procedure quick ly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
10. Start engine and let it idle.
Item Specification
Idle speed M/T: 700
± 50 rpm (in Neutral position)
A/T: 700 ± 50 rpm (in P or N position)
CVT: 700 ± 50 rpm (in P or N position)
Ignition timing M/T: 13
± 5 ° BTDC (in Neutral position)
A/T: 13 ± 5° BTDC (in P or N position)
CVT: 13 ± 5 ° BTDC (in P or N position)
Revision: May 2010 2011 Versa

EC-594
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TROUBLE DIAGNOSIS
SYMPTOM
Reference
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank 5
5 FL-10
Fuel piping
5 5 5 5 55EM-154
Va p o r l o c k —
Valve deposit 5 555 55 5—
Poor fuel (Heavy weight gasoline,
Low octane) —
Air Air duct
55555 5 EM-135
Air cleaner
EM-136
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator)
5555 EM-135
Electric throttle control actuator
EM-137
Air leakage from intake manifold/
Collector/GasketEM-137
Cranking Battery
111111
11
SC-7
Generator circuit
SC-22
Starter circuit3 SC-16
Signal plate6 EM-203
Park/neutral position (PNP)
switch (M/T)
Transmission range switch (A/T
or CVT)4
MT-57,
AT- 9 4
,
CVT-65
Engine Cylinder head 55555 55 5 EM-188
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-203
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Revision: May 2010 2011 Versa