2011 NISSAN LATIO sensor

SC-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005929006
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 in correct 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:0000000005929007
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

SE-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006410247
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:0000000005929596
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

FRONT SEATSE-13
< SERVICE INFORMATION >
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1. Disconnect the negative and positive battery term inals, then wait at least three minutes.
2. Remove the rear leg covers.
3. Remove the front leg covers.
4. Remove the mounting bolts on the back si de of the front seat. (TORX bolt: T50)
5. Remove the mounting bolts on the front side of the front seat. (TORX bolt: T50)
6. Disconnect the harness connector under the seat and remove harness securing clips.
7. Set seatback in a neutral position, and t hen remove front seat from the vehicle.
Installation
Installation is in the reverse order of removal. Be careful of the following three points.
• Before the installation, confirm that the inside and outside slide rails are locked at the same positions.
• Confirm that the slide rail location pin is set to the hole on the floor.
• Clamp the harness in position.
Disassembly and AssemblyINFOID:0000000006415818
SEAT CUSHION FINISHER
Disassembly
CAUTION:
• Front passenger seat is equipped with an Occupant Classification System sensor and control mod-
ule. Do not disassemble front passenger seat cushion assembly or remove the trim as this will affect
the Occupant Classificatio n System calibration.
• During installation, the wire harn ess clips must be installed in the holes they were originally in. Do
not add additional clips.
1. Remove the seat from the vehicle. Refer to SE-12, "
Removal and Installation".
2. Remove the seat recline and lift levers.
PIIB2669J
PIIB2668J
Revision: May 2010 2011 Versa

SRS-1
RESTRAINTS
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SECTION SRS
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CONTENTS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution for SRS "AIR BAG" and "SEAT BELT
PRE-TENSIONER" Service ......................................
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Occupant Classification System Precaution .............3
SYMPTOM DIAGNOSIS ...............................4
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS) .............................................................. .....
4
SRS Configuration .............................................. ......4
Driver Air Bag Module ...............................................5
Front Passenger Air Bag Module ..............................5
Front Side Air Bag ............................................... ......5
Side Curtain Air Bag ..................................................5
Front Seat Belt Pre-tensioner with Load Limiter .......6
Occupant Classification System (OCS) ....................6
Direct-connect SRS Component Connectors ............7
TROUBLE DIAGNOSIS ......................................8
Trouble Diagnosis Introduction ........................... ......8
SRS Component Parts Location .............................10
Schematic ...............................................................11
Wiring Diagram - SRS- ............................................12
CONSULT-III Function (AIR BAG) ..........................17
Self-Diagnosis Function (Without CONSULT-III) ....18
SRS Operation Check ......................................... ....19
Trouble Diagnosis with CONSULT-III .....................20
Trouble Diagnosis without CONSULT-III ................28
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn Off ...................................................
32
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn On ............................................... ....
32
ON-VEHICLE REPAIR .................................34
DRIVER AIR BAG MODULE ............................34
Removal and Installation ..................................... ....34
SPIRAL CABLE ................................................37
Removal and Installation .........................................37
FRONT PASSENGER AIR BAG MODULE ......39
Removal and Installation .........................................39
SIDE CURTAIN AIR BAG MODULE ................40
Component ..............................................................40
Removal and Installation .........................................40
CRASH ZONE SENSOR ...................................42
Removal and Installation ..................................... ....42
SIDE AIR BAG (SATELLITE) SENSOR ...........43
Removal and Installation .........................................43
FRONT SEAT BELT PRE-TENSIONER ...........44
Removal and Installation .........................................44
DIAGNOSIS SENSOR UNIT .............................45
Removal and Installation .........................................45
OCCUPANT CLASSIFICATION SYSTEM
CONTROL UNIT ................................................
47
Removal and Installation .........................................47
COLLISION DIAGNOSIS ..................................48
For Frontal Collision ................................................48
For Side and Rollover Collision ...............................50
Revision: May 2010 2011 Versa

SRS-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006211104
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 in correct 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 for SRS "AIR BAG" and "S EAT BELT PRE-TENSIONER" Service
INFOID:0000000006211105
• Do not use electrical test equipment to check SRS ci rcuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min- utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-
tensioner to deploy. Therefore, do not work on any SR S connectors or wires until at least 3 minutes have
passed.
• The air bag diagnosis sensor unit must always be installed with the arrow mark “ ⇐” pointing toward the front
of the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust
before installation and replace as required.
• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
• After air bag inflates, the front instrument panel assembly should be replaced if damaged.
• Do not reuse center pillar upper garnish if removed.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000006211106
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.
Revision: May 2010 2011 Versa

SRS-4
< SYMPTOM DIAGNOSIS >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SYMPTOM DIAGNOSIS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS ConfigurationINFOID:0000000006211108
The air bag deploys if the air bag diagnosis sensor unit is activated while the ignition switch is in the ON or
START position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module, front passenger air bag module and front seat belt pre-tension-
ers are activated in a frontal collision but not in a side collision.
SRS configurations for some collision modes are as follows:
WHIA0186E
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module ×——
Front passenger air bag module ×——
Front LH seat belt pre-tensioner ×——
Front RH seat belt pre-tensioner ×——
Front LH side air bag module —×—
Front RH side air bag module —— ×
LH side curtain air bag module —×—
RH side curtain air bag module —— ×
Revision: May 2010 2011 Versa

SRS-6
< SYMPTOM DIAGNOSIS >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Front Seat Belt Pre-te nsioner with Load Limiter
INFOID:0000000006211113
The seat belt pre-tensioner system wi th load limiter is installed for
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an im pact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the pre-tensioner. Vehicle passengers are
securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt
web tension while maintaining force.
Occupant Classification System (OCS)INFOID:0000000006211114
The occupant classification system (OCS) identifies diff erent size occupants, out of position occupants, and
detects if child seat is present in the front passenger seat. The OCS receives inputs from the occupant classi-
fication system sensor (located under the passenger seat cushion assembly) and belt tension sensor (part of
the passenger front seat belt assembly and located at the belt anchor location). Depending on classification of
the passenger, the OCS sends a signal to the air bag di agnosis sensor unit. The air bag diagnosis sensor unit
uses this signal and the seat belt buckle switch RH signal to determine deployment or non deployment of the
front passenger air bag module in the event of a collision. Depending on the signals received, the air bag diag-
nosis sensor unit can disable the front passenger air bag module completely.
NOTE:
In case of customer concern, CONSULT-III can be used to confirm the passenger air bag status (readiness).
Passenger Air Bag Status Conditions
NOTE:
Passenger does not meet Occupant Classification System specifications for passenger air bag activation.
WHIA0324E
Front Passenger Seat
(Condition) PASS AIR BAG OFF Indicator
(Status) Passenger Air Bag Status
(Readiness) CONSULT-III Display
Seat occupied OFF Active (enabled)ON
Seat occupied
NOTEON Deactivated (disabled) OFF
Seat empty OFF Deactivated (disabled) OFF
1. Belt tension sensor 2. Occupant classification system bladder 3. Occupant classification system sensor
4. Occupant classification system con- trol unit
WHIA0328E
Revision: May 2010 2011 Versa

SRS-10
< SYMPTOM DIAGNOSIS >
TROUBLE DIAGNOSIS
SRS Component Parts Location
INFOID:0000000006211117
1. Crash zone sensor 2. Spiral cable 3. Front passenger air bag off indicator
4. Front LH seat belt pre-tensioner LH side air bag (satellite) sensor 5. Air bag diagnosis sensor unit 6. Front LH side air bag module
7. Seat belt buckle switch (LH) Seat belt buckle switch (RH) 8. Occupant classification system control
unit
Occupant classification system sensor 9. Front RH seat belt pre-tensioner
RH side air bag (satellite) sensor
Belt tension sensor
10. Front RH side air bag module 11. RH side curtain air bag module 12. LH side curtain air bag module
13. Front passenger air bag module 14. Driver air bag module
WHIA0329E
Revision: May 2010 2011 Versa