srs NISSAN TIIDA 2010 Service Repair Manual

SE-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005713813
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:0000000005396860
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: January 20102010 Versa

SRS-1
RESTRAINTS
C
DE
F
G
I
J
K L
M
SECTION SRS
A
B
SRS
N
O P
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 ...................................................
31
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: January 20102010 Versa

SRS-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005716108
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:0000000005396892
• 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:0000000005396893
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: January 20102010 Versa

PRECAUTIONSSRS-3
< PRECAUTION >
C
DE
F
G
I
J
K L
M A
B
SRS
N
O P
• 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 power 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.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Occupant Classification System PrecautionINFOID:0000000005396894
Replace control unit and passenger front seat cushion as an assembly.
Revision: January 20102010 Versa

SRS-4
< SYMPTOM DIAGNOSIS >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SYMPTOM DIAGNOSIS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS ConfigurationINFOID:0000000005396895
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: January 20102010 Versa

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)SRS-5
< SYMPTOM DIAGNOSIS >
C
DE
F
G
I
J
K L
M A
B
SRS
N
O P
Driver Air Bag ModuleINFOID:0000000005396896
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:0000000005396897
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-6, "
Occupant Classification System (OCS)" for more
information.
Front Side Air BagINFOID:0000000005396898
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:0000000005396899
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.
WHIA0325E
WHIA0326E
WHIA0327E
WHIA0041E
Revision: January 20102010 Versa

SRS-6
< SYMPTOM DIAGNOSIS >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Front Seat Belt Pre-te nsioner with Load Limiter
INFOID:0000000005396900
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:0000000005396901
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: January 20102010 Versa

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)SRS-7
< SYMPTOM DIAGNOSIS >
C
DE
F
G
I
J
K L
M A
B
SRS
N
O P
Direct-connect SRS Co mponent ConnectorsINFOID:0000000005396902
The following SRS components use dire ct-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.
WHIA0103E
Revision: January 20102010 Versa

SRS-8
< SYMPTOM DIAGNOSIS >
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
Trouble Diagnosis IntroductionINFOID:0000000005396903
CAUTION:
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to do so in
this Service Manual.
• Do not attempt to repair, splice or modify SRS wiring harnesses. If a harness is damaged, replace it
with a new one.
• Keep ground connections clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by usi ng “AIR BAG” warning lamp and/or CONSULT-III.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-III are as follows:
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malf unction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Information From Customer
WHAT - Vehicle model
WHEN - Date, Frequencies
WHERE - Road conditions
HOW - Operating conditions, Symptoms
Preliminary Check
Check that the following parts are in good order.
• Battery (Refer to SC-5, "
How to Handle Battery".)
• Fuses (Refer to SRS-11, "
Schematic".)
• System component-to-harness connections
WORK FLOW
User mode Diagnosis mode Display type
“AIR BAG” warning lamp XXON-OFF operation
CONSULT-III —XMonitoring
Revision: January 20102010 Versa

TROUBLE DIAGNOSISSRS-9
< SYMPTOM DIAGNOSIS >
C
DE
F
G
I
J
K L
M A
B
SRS
N
O P
*1: "PRELIMINARY CHECK" *2:SRS-19*3: SRS-20
*4:SRS-28
WHIA0348E
Revision: January 20102010 Versa