TOYOTA AVENSIS 1999 Supplement

H11606
Pretensioner (LH)
Side Airbag Assembly (LH)
(Squib) Side and Curtain Shield
Airbag Sensor (LH) Front Airbag Sensor (RH) Side Airbag Assembly (RH)
(Squib)
Pretensioner (RH)
Airbag Sensor
AssemblyFront Passenger Airbag
Assembly (Squib)
Spiral Cable
No.1 J/B 2
37 8
10
11
12
13
1
4
5
6
9
Steering Wheel
Pad (Squib)
14
15
16
17
18
19Front Airbag Sensor (LH) Side and Curtain Shield
Airbag Sensor (RH)
Curtain Shield Airbag
Assembly (RH) (Squib)
Curtain Shield Airbag
Assembly (LH) (Squib)
2021
– SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS–3
6. SRS CONNECTORS
No.ItemApplication
(1)Terminal Twin–Lock MechanismConnectors 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21
(2)Airbag Activation Prevention MechanismConnectors 1, 2, 3, 4, 5, 7, 8, 9, 10, 12, 17, 19, 20, 21
(3)Electrical Connection Check MechanismConnectors 1, 2, 3
(4)Connector Twin–Lock MechanismConnectors 5, 6
(a) All connectors in the SRS are colored in yellow to distin-
guish them from other connectors. Connectors having
special functions and specifically designed for the SRS
are used in the locations shown on the previous page to
ensure high reliability. These connectors use durable
gold–plated terminals.

Z05953
Spacer
Housing
Female Male
R10587
When Connector is Connected When Connector is Disconnected
Short Spring Plate
Housing
Housing
Terminal
ConnectorsShort Spring PlateSquib
Squib Short Spring Plate ONContacting Male Terminal Short Spring Plate
Closed Circuit
R12076Airbag Sensor AssemblyDisconnection
Detection
PinSRS
Warning
Light RS–4
– SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
(1) Terminal Twin–Lock Mechanism
Each connector has a two–piece component con-
sisting of a housing and a spacer. This design en-
ables the terminal to be locked securely by two lock-
ing devices (the retainer and the lance) to prevent
terminals from coming out.
(2) Airbag Activation Prevention Mechanism
Each connector contains a short spring plate. When
the connector is disconnected, the short spring
plate automatically connects positive (+) terminal
and negative (–) terminal of the squib.
HINT:
The type of connector is shown in the diagram on the previous
page.
(3) Electrical Connection Check Mechanism
This mechanism electrically checks that connectors
are connected correctly and completely. The electri-
cal connection check mechanism is designed so
that the disconnection detection pin connects with
the diagnosis terminals when the connector hous-
ing lock is locked.

H01315
Terminal for Diagnosis
Disconnection Detection Pin Half ConnectionComplete Connection
Terminal for
Diagnosis
AB0089
Secondary Lock
Primary LockLockLock
Primary Lock Incomplete
(Secondary Lock Prevented)Primary Lock Complete
(Secondary Lock Permitted)Twin–Lock Completed
– SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS–5
HINT:
The connectors shown in this illustration are connectors ”1”, ”2”
and ”3” in step 10.
(4) Connector Twin–Lock Mechanism
With this mechanism connectors (male and female
connectors) are locked by 2 locking devices to in-
crease the connection reliability. If the primary lock
is incomplete, ribs interfere and prevent the sec-
ondary lock.

Z14034
Fig.1
Fig.2Power Source
Safing
Sensor
Squibs
Deceleration Sensor
H01581
Outer
H01582
Lock of connector is released
Disconnection is completed
RS–6
– SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
(b) When the vehicle is involved in a frontal collision in the
hatched area (Fig. 1) and the shock is larger than the pre-
determined level, the SRS is activated automatically. A
safing sensor is designed to go on at a smaller decelera-
tion rate than the airbag sensor. As illustrated in Fig. 2,
ignition is caused when current flows to the squib, which
happens when a safing sensor and the deceleration sen-
sor go on simultaneously. When a deceleration force acts
on the sensors, 2 squibs in the driver airbag and front pas-
senger airbag ignite and generate gas. The gas discharg-
ing into the driver airbag and front passenger airbag rap-
idly increases the pressure inside the bags, breaking
open the steering wheel pad and instrument panel door.
Bag inflation then ends, and the bags deflate as the gas
is discharged through discharge holes at the bag’s rear or
side.
7. DISCONNECTION OF SIDE AND CURTAIN SHIELD
AIRBAG SENSOR CONNECTOR
(a) With holding both flank sides of the outer, slide the outer
to the direction shown by an arrow.
(b) Lock of the connectors is released, then disconnect the
connectors.
HINT:
Make sure to hold both flank sides of the outer. If holding the top
and bottom sides, it will obstruct disconnection.

H01583
Outer
Outer
– SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS–7
8. CONNECTION OF SIDE AND CURTAIN SHIELD AIR-
BAG SENSOR CONNECTOR
(a) Align the male connector (of the side of sensor) and fe-
male connector in the same direction as shown in the il-
lustration and fit in them without rubbing.
(b) As they are fitted in, the outer slides rearward. Press it un-
til the outer returns to its original position again.
If fitting stops half way, connectors will separate.
(c) Make sure to insert until they are locked. After fitting in,
pull them slightly to check that they are locked. (When
locked, make sure that the outer returns to its original
position and sound at the time of fitting in can be heard.)
HINT:

Do not fit in while holding the outer.

When fitting in, the outer slides. Do not touch it.

H01584
Slider
Disconnection is completed Slider
H01585
SliderSlider
RS–8
– SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
9. DISCONNECTION OF SIDE AIRBAG AND CURTAIN
SHIELD AIRBAG CONNECTOR
(a) Place a finger on the slider.
(b) Slide the slider to release lock.
(c) Disconnect the connector.
10. CONNECTION OF SIDE AIRBAG AND CURTAIN
SHIELD AIRBAG CONNECTOR
(a) Align a lock part of male connector and a slider of female
connector in the same direction as shown in the illustra-
tion, fit in them without rubbing.
(b) Make sure to insert until they are locked. After fitting in pull
them slightly to check that they are locked. (When locked,
make sure that the outer returns to its original position and
sound at the time of fitting in can be heard.)
HINT:

As the slider slides, do not touch it.

Be careful not to deform the release board. If the release
board is deformed, replace it with a new one.

RS0IL–01
H11625
: Specified torque
 Non–reusable partHeadrest
Headrest Support
Lumber Support Adjusting Knob
Seatback Pad
Seatback CoverSeatback
Frame
25 (255, 18)
25 (255, 18)
Side Airbag
Assembly
Front Seat Cushion
Assembly
37 (375, 27)
37 (375, 27)
Front Seat Belt Lap Outer Anchor
42 (430, 31)
Front Seat Cushion Outer Shield
Reclining Adjuster Knob Front Seat Cushion
Inner ShieldHog Ring
N·m (kgf·cm, ft·lbf)Seat Track Cover
– SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
RS–9
SIDE AIRBAG ASSEMBLY
COMPONENTS

RS0IM–01
H03408
H03411
H03409
RS–10
– SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
REMOVAL
NOTICE:

If the wiring connector of the SRS is disconnected
and the ignition switch is at ON or ACC position, DTCs
will be recorded.

Never use the airbag parts from another vehicle.
When replacing parts, replace them with new parts.
1. REMOVE FRONT SEAT
(a) Remove the reclining adjuster knob and front seat cush-
ion outer shield.
(b) Remove the front seat belt lap outer anchor.
(c) Remove the 2 seat track covers and 4 bolts.
(d) Disconnect the side airbag connector.
NOTICE:
When handling the airbag connector, take care not to dam-
age the airbag wire harness.
(e) Remove the front seat.
2. REMOVE THESE PARTS FROM FRONT SEAT AS-
SEMBLY
(a) Remove the headrest.
(b) Remove the 2 headrest supports.
(c) Remove the lumber support adjusting knob.
(d) Remove the front seat inner shield.
3. REMOVE SEATBACK FROM SEAT CUSHION AS-
SEMBLY
Using a torx wrench, remove the 4 screws and seatback assem-
bly.
Torx wrench: T40 (Part No.09042–00020 or locally
manufactured tool)
4. REMOVE THESE PARTS FROM SEATBACK FRAME
(a) Disengage the hook of the seatback cover.
(b) Remove the hog rings and seatback cover.
(c) Remove the seatback pad.

RS0IN–01
H03415
Cross Section
H03416
– SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
RS–11
INSPECTION
1. VEHICLES NOT INVOLVED IN COLLISION
(a) Do a diagnostic system check. (See Pub. No. RM599E on
page DI–152)
(b) Do a visual check which includes the following items with
the side airbag assembly installed in the vehicle.
Check that there are no cuts or the frayed on seams and
seatback cover.
2. VEHICLES INVOLVED IN COLLISION AND AIRBAG IS
NOT DEPLOYED
(a) Do a diagnostic system check. (See Pub. No. RM599E on
page DI–152)
(b) Do a visual check which includes the following items with
the side airbag assembly removed from the vehicle.

Check cuts and cracks, or marked discoloration of
the side airbag assembly.

Check cuts and cracks in wire harnesses, and chip-
ping in connectors.
CAUTION:
For removal and installation of the side airbag assembly,
see page RS–10 and RS–19. Be sure to follow the correct
procedure.
3. VEHICLES INVOLVED IN COLLISION AND AIRBAG IS
DEPLOYED
(a) Do a diagnostic system check. (See Pub. No. RM599E on
page DI–152)
(b) Do a visual check which includes the following items with
the side airbag assembly removed from the vehicle.

Check the side airbag installation part of the seat
frame.

Check the damage to the connector and wire har-
ness.
HINT:
If the seat frame is deformed, never repair it. Always replace it
with a new one.

RS0IO–01
AB0152
SST RS–12
– SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
DISPOSAL
HINT:
When scrapping vehicles equipped with an SRS or disposing
of the side airbag assembly always first deploy the airbag in ac-
cordance with the procedure described below. If any abnormal-
ity occurs with the airbag deployment, contact the SERVICE
DEPT. of the DISTRIBUTOR.
When disposing of a side airbag assembly with an airbag
deployed in a collision, follow the same procedure given in step
1–(e) in ”DISPOSAL”.
CAUTION:

Never dispose of a side airbag assembly which has
an undeployed airbag.

The airbag produces a sizeable exploding sound
when it deploys, so perform the operation out of
doors and where it will not create a nuisance to
nearby residents.

When deploying the airbag, always use the specified
SST (SRS Airbag Deployment Tool), perform the op-
eration in a place away from electrical noise.
SST 09082–00700

When deploying the airbag, perform the operation at
least 10 m (33 ft) away from the airbag assembly.

The side airbag assembly is very hot when the airbag
is deployed, so leave it alone for at least 30 minutes
after deployment.

Use gloves and safety glasses when handling side
airbag assembly with the deployed airbag.

Always wash your hands with water after completing
the operation.

Do not apply water etc. to a side airbag assembly with
the deployed airbag.