Page 1449 of 2234

H41646
Disconnection
Detection
Pin
Airbag Sensor Assy Center
H01315
Terminal for Diagnosis
Disconnection Detection Pin
Half Connection Complete Connection
Terminal for
Diagnosis
H40180
Stopper
Locking Part Spring
Slider
Locking Arm Rebounded by Slider
(Spring)Stopper
±
SUPPLEMENTAL RESTRAINT SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM
60±5
AVENSIS REPAIR MANUAL (RM1018E)
HINT:
The type of connector is shown in the diagram on the previous
page.
(3) Electrical connection check mechanism:This mechanism electrically checks that the con-
nectors are connected correctly and completely.
The electrical connection check mechanism is de-
signed so that the disconnection detection pin con-
nects with the diagnosis terminals when the con-
nector housing lock is locked.
HINT:
The connectors shown in this illustration are connectors, º1º,
º2º, º3º and º4º in the step 1. (4) Half connection prevention mechanism:
If the connector is not completely connected, the
connector is disconnected due to the spring opera-
tion to the extent that no continuity exists.
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Page 1450 of 2234

H40181
Claw
Groove
H42905
Fig.1
Fig.2 Power Source
SafingSensor Squibs
Deceleration
Sensor
60±6
±
SUPPLEMENTAL RESTRAINT SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(5) Connector lock mechanism: Locking the connector lock button connects the
connector securely.
(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. The
safing sensor is designed to go on at a smaller decelera-
tion rate than the airbag sensor. As illustrated in the Fig.
2, ignition is caused when current flows to the squib,
which happens when the safing sensor and the decelera-
tion sensor go on simultaneously. When a deceleration
force acts on the sensors, 3 squibs in the driver airbag,
front passenger airbag and knee airbag ignite and gener-
ate gas. The gas discharging into the driver airbag, front
passenger airbag and knee airbag rapidly increases the
pressure inside the bags, breaking the horn button assy
and instrument panel. The inflation of the bag then ends,
and the bags deflate as the gas is discharged through dis-
charge holes at the bag's rear or side.
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Page 1451 of 2234
H42906
(a)Yellow Part Yellow Part
Mark
(b)
H43151
Yellow Part
±
SUPPLEMENTAL RESTRAINT SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM
60±7
AVENSIS REPAIR MANUAL (RM1018E)
2. DISCONNECTION OF CONNECTORS FOR HORN BUTTON ASSY AND CURTAIN SHIELD AIR-
BAG ASSY
HINT:
Tape up the screwdriver tip before use.
(a) Release the yellow part of the connector using a screwdriver.
(b) Insert a screwdriver tip between the connector and the base, and then le\
ver up connector.
3. DISCONNECTION OF CONNECTORS FOR HORN BUTTON ASSY AND CURTAIN SHIELD AIR-
BAG ASSY
(a) Connect the connector.
(b) Push down securely on the yellow part of the connector.
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Page 1452 of 2234
H43007
(a)Black PartMark
(b)
Black Part
H43259
Black Part
60±8
±
SUPPLEMENTAL RESTRAINT SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
4. DISCONNECTION OF CONNECTORS FOR INSTRUMENT PANEL AIRBAG ASSY
HINT:
Tape up the screwdriver tip before use.
(a) Release the black part of the connector using a screwdriver.
(b) Insert a screwdriver tip between the connector and the base, and then le\
ver up connector.
5. DISCONNECTION OF CONNECTORS FOR INSTRUMENT PANEL AIRBAG ASSY
(a) Connect the connector.
(b) Push down securely on the yellow part of the connector.
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Page 1453 of 2234
H01584
SliderSlider
Disconnection is completed
H01585
SliderSlider
±
SUPPLEMENTAL RESTRAINT SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM
60±9
AVENSIS REPAIR MANUAL (RM1018E)
6. DISCONNECTION OF CONNECTOR FRONT SEAT AIRBAG ASSY
(a) Place a finger on the slider.
(b) Slide the slider to release lock.
(c) Disconnect the connector.
7. CONNECTION OF CONNECTOR FOR FRONT SEAT AIRBAG ASSY
(a) Align the lock part of the male connector and the slider of the female connec\
tor in the same direction
as shown in the illustration, connect them without rubbing together.
(b) Be sure to insert the connectors until they are locked. After connecting t\
hem, pull them slightly to check
that they are locked. (When locking, make sure that the slider returns to its origina\
l position and a click
sound can be heard.)
HINT:
When connecting them, the slider slides. Be sure not to touch the slider whil\
e connecting, as it may result
in an insecure fit.
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Page 1454 of 2234

H02763
Outer
H02764
Connector lock is releasedDisconnection is completed
H02768
OuterOuter
Connection is completed
60±10
±
SUPPLEMENTAL RESTRAINT SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
8. DISCONNECTION OF AIRBAG FRONT SENSOR, SIDE AIRBAG SENSOR AND AIRBAG SENSOR REAR CON-
NECTOR
(a) While holding both outer flank sides of the outer, slide the outer to the direction shown by the arrow.
(b) When the connector lock is released, the connectors are disconnected.
HINT:
Be sure to hold both outer flank sides. If the top and bottom
sides are held, it will obstruct disconnection.
9. CONNECTION OF CONNECTORS FOR AIRBAG FRONT SENSOR, SIDE AIRBAG SENSOR AND AIRBAG SENSOR REAR
(a) Align the male connector (on the side of sensor) and female connector in th\
e same direction as shown in the illustration and connect them without rubbing together.
(b) Be sure to insert the connectors until they are locked. After connecting t\
hem, pull them slightly to check that they are locked. (When locking, make sure that the outer returns to its original position and a click
sound can be heard.)
HINT:
When connecting them, the outer slides. Be sure not to hold the outer while connecting, as it may result in
an insecure fit.
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Page 1455 of 2234

600JV±01
H42615
H42616
H43001
Horn Button Contact Plate
H42618
±
SUPPLEMENTAL RESTRAINT SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM
60±11
AVENSIS REPAIR MANUAL (RM1018E)
ON±VEHICLE INSPECTION
1. HORN BUTTON ASSY (VEHICLES NOT INVOLVED IN
COLLISION)
(a)Do a diagnostic system check (See page 05±1184).
(b) Do a visual check which includes the following items with the horn button assy installed in the vehicle:
Cuts, minute cracks or marked discoloration on the horn
button assy top surface and in the grooved portion.
2. HORN BUTTON ASSY (VEHICLE INVOLVED IN COLLI- SION AND AIRBAG IS NOT DEPLOYED)
(a)Do a diagnostic system check (See page 05±1184).
(b) Do a visual check of the horn button assy removed from the vehicle:
Cuts, minute cracks or marked discoloration on the
horn button assy top surface and in the grooved
portion.
Cuts and cracks in wire harness, and chipping in
connectors.
Deformation of the horn button assy.
The deformation of the horn button contact plate of
the steering wheel assy.
HINT:
If the horn button contact plate of the steering wheel assy
is deformed, replace it with a new one. Always replace the
steering wheel assy with a new one.
Never repair it in order for reuse or replacement.
There should be no interference between the horn button
assy and steering wheel assy, and the clearance should
be uniform all the way around when the new horn button
assy is installed on the steering wheel assy.
CAUTION:
For removal and installation procedures of the horn button
assy, see ºReplacementº on page 60±17, and be sure to fol-
low the correct procedure.
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Page 1456 of 2234

H42619
H42620
H42621
60±12
±
SUPPLEMENTAL RESTRAINT SYSTEM SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3. INSTRUMENT PANEL PASSENGER AIRBAG ASSY (VEHICLE NOT INVOLVED IN COLLISION)
(a)Do a diagnostic system check (See page 05±1184).
(b) Do a visual check which includes the following items with
the instrument panel passenger airbag assy installed in
the vehicle:
Cuts, minute cracks or marked discoloration on the instru-
ment panel around the instrument panel passenger air-
bag assy.
4. INSTRUMENT PANEL PASSENGER AIRBAG ASSY (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS
NOT DEPLOYED)
(a)Do a diagnostic system check (See page 05±1184).
(b) Do a visual check of the instrument panel passenger air- bag assy removed from the vehicle:
Cuts, minute cracks or marked discoloration on the
instrument panel passenger airbag assy.
Cuts and cracks in wire harness, and chipping in
connectors.
Deformation or cracks on the instrument panel and
instrument panel reinforcement.
HINT:
If the instrument panel or instrument panel reinforcement
is deformed or cracked, never repair it. Always replace it
with a new one.
Never repair it in order for reuse.
CAUTION:
For removal and installation of procedures the instrument
panel passenger airbag assy, see ºReplacementº on page
60±29, and be sure to follow the correct procedure.
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