2008 NISSAN TIIDA Supplemental Restraint System

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SECTION SE
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CONTENTS
SEAT
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Service Notice ...........................................................2
Precaution .................................................................2
PREPARATION ...................................................3
Special Service Tool .................................................3
Commercial Service Tool ..........................................3
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ................................................................
4
Work Flow .................................................................4
Generic Squeak and Rattle Troubleshooting ............6
Diagnostic Worksheet ...............................................8
FRONT SEAT ....................................................10
Driver Seat ...............................................................10
Passenger Seat .......................................................11
Removal and Installation .........................................11
Disassembly and Assembly .....................................12
REAR SEAT ......................................................14
Component Parts Drawing ......................................14
Removal and Installation .........................................15
Disassembly and Assembly .....................................17
Component Parts Drawing ......................................20
Removal and Installation .........................................21
Disassembly and Assembly .....................................23
Removal and Installation .........................................25
Disassembly and Assembly .....................................25

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< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001704254
The Supplemental Restraint System such as “AIR 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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, 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 unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Service NoticeINFOID:0000000001704255
• When removing or installing various parts, place a cloth or padding onto the vehicle body to prevent
scratches.
• Handle trim, molding instruments, grille, etc. carefully during removing or installing. Be careful not to oil or
damage them.
• Apply sealing compound where necessary when installing parts.
• When applying sealing compound, be careful that the sealing compound does not protrude from parts.
• When replacing any metal parts (for example body outer panel, member, etc.), be sure to take rust preven-
tion measures.
PrecautionINFOID:0000000001704256
• When removing or disassembling any part, be careful not to damage or deform it. Protect parts which may
get in the way with cloth.
• When removing parts with a screwdriver or other tool, protect parts by wrapping tools with vinyl or tape.
• Keep removed parts protected with cloth.
• If a clip is deformed or damaged, replace it.
• If an unreusable part is removed, replace it with a new one.
• Tighten bolts and nuts firmly to the specified torque.
• After re-assembly has been completed, make sure each part functions correctly.
• Remove stains in the following way.
Water-soluble stains:
Dip a soft cloth in warm water, and then squeeze it tightly. After wiping the stain, wipe with a soft dry cloth.
Oil stain:
Dissolve a synthetic detergent in warm water (density of 2 to 3% or less), dip the cloth, then clean off the stain
with the cloth. Next, dip the cloth in fresh water and squeeze it tightly. Then clean off the detergent completely.
Then wipe the area with a soft dry cloth.
• Do not use any organic solvent, such as thinner or benzine.

SRS-1
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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
Occupant Classification System Precaution .............2
SYMPTOM DIAGNOSIS ...............................3
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS) ...................................................................
3
SRS Configuration ....................................................3
Driver Air Bag Module ...............................................4
Front Passenger Air Bag Module ..............................4
Front Side Air Bag .....................................................4
Side Curtain Air Bag ..................................................4
Front Seat Belt Pre-tensioner with Load Limiter .......5
Occupant Classification System (OCS) ....................5
Direct-connect SRS Component Connectors ............6
TROUBLE DIAGNOSIS ......................................7
Trouble Diagnosis Introduction .................................7
SRS Component Parts Location ...............................9
Schematic ...............................................................10
Wiring Diagram - SRS- ............................................11
CONSULT-III Function (AIR BAG) ..........................16
Self-Diagnosis Function (Without CONSULT-III) ....17
SRS Operation Check .............................................18
Trouble Diagnosis with CONSULT-III .....................19
Trouble Diagnosis without CONSULT-III ................27
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn Off ...................................................
30
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn On ...................................................
31
ON-VEHICLE REPAIR .................................33
DRIVER AIR BAG MODULE ............................33
Removal and Installation .........................................33
SPIRAL CABLE ................................................36
Removal and Installation .........................................36
FRONT PASSENGER AIR BAG MODULE ......38
Removal and Installation .........................................38
SIDE CURTAIN AIR BAG MODULE ................39
Component ..............................................................39
Removal and Installation .........................................39
CRASH ZONE SENSOR ...................................41
Removal and Installation .........................................41
SIDE AIR BAG (SATELLITE) SENSOR ...........42
Removal and Installation .........................................42
FRONT SEAT BELT PRE-TENSIONER ...........43
Removal and Installation .........................................43
DIAGNOSIS SENSOR UNIT .............................44
Removal and Installation .........................................44
OCCUPANT CLASSIFICATION SYSTEM
CONTROL UNIT ................................................
45
Removal and Installation .........................................45
COLLISION DIAGNOSIS ..................................46
For Frontal Collision ................................................46
For Side and Rollover Collision ...............................47

SRS-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001703904
The Supplemental Restraint System such as “AIR 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, 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 unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
INFOID:0000000001703905
• Do not use electrical test equipment to check SRS circuits 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 SRS 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.
Occupant Classification System PrecautionINFOID:0000000001703906
Replace control unit and passenger front seat cushion as an assembly.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
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< SYMPTOM DIAGNOSIS >
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS ConfigurationINFOID:0000000001703907
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 — —×

SRS-4
< SYMPTOM DIAGNOSIS >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Driver Air Bag Module
INFOID:0000000001703908
The driver air bag module is dual stage and located in the steering
wheel assembly. It operates with the SRS system in a frontal colli-
sion exceeding a specified level.
Front Passenger Air Bag ModuleINFOID:0000000001703909
The front passenger air bag module is located behind the instrument
panel assembly (mounted to the steering member). It operates with
the SRS system in a frontal collision exceeding a specified level.
Refer to SRS-5, "
Occupant Classification System (OCS)" for more
information.
Front Side Air BagINFOID:0000000001703910
Front side air bag modules are built into the front seatback assem-
blies. Vehicles with side air bags are equipped with labels as shown.
Side Curtain Air BagINFOID:0000000001703911
Side curtain air bag modules are located above the vehicle headlin-
ing and run from the front to the rear of the vehicle. Vehicles with
side curtain air bags are equipped with labels as shown.
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WHIA0326E
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS-5
< SYMPTOM DIAGNOSIS >
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Front Seat Belt Pre-tensioner with Load LimiterINFOID:0000000001703912
The seat belt pre-tensioner system with 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 impact 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:0000000001703913
The occupant classification system (OCS) identifies different 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 diagnosis 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
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SRS-6
< SYMPTOM DIAGNOSIS >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Direct-connect SRS Component Connectors
INFOID:0000000001703914
The following SRS components use direct-connect style harness connectors.
• Driver air bag module
• Passenger air bag module
• LH side curtain air bag module
• RH side curtain air bag module
• Front LH seat belt pre-tensioner
• Front RH seat belt pre-tensioner
Always pull up to release the locking tab prior to removing connector from SRS component.
Always push down to lock the locking tab after installing connector to
SRS component. When locked, the locking tab is level with the con-
nector housing.
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