TOYOTA SUPRA 1995 Service Repair Manual

6. COVER STEERING WHEEL PAD WITH CARDBOARD
BOX OR TIRES
(Covering Method Using Cardboard Box)
Cover the steering wheel pad with the cardboard box and
weigh the cardboard box down in 4 places with at least 196
N (20 kg, 44 lb).
Size of cardboard box:
Must exceed the following dimensions±
x = 460 mm (18.11 in.)
When dimension ºyº of the cardboard box exceeds the
diameter of the disc wheel with tire the steering wheel
pad is tied to±
x = 460 mm (18.11 in.) + width of tire
y = 650 mm (25.59 in.)
NOTICE: If a cardboard box smaller than the size speci-
fied is used, the cardboard box will be broken by the
shock of the airbag deployment.
Covering Method Using Tires:
Place at least 3 tires without disc wheel on top of the disc
wheel with tire to which the steering wheel pad is tied.
Tire size: Must exceed the following dimensions±
Width: 185 mm (7.28 in.)
Inner dia.: 360 mm (14.17 in.)
CAUTION: Do not use tires with disc wheels.
NOTICE: The tires may be marked by the airbag deploy-
ment, so use redundant tires.
7. AIRBAG DEPLOYMENT
(a) Connect the SST red clip to the battery positive (+) terminal
and the black clip to the battery negative (±) terminal.
(b) Confirm that no±one is within 10 m (33 ft) of the disc wheel
the steering wheel pad is tied to.
(c) Press the SST activation switch and deploy the airbag.
HINT: The airbag deploys simultaneously as the LED of the
SST activation switch lights up. RS±18
± SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE

8. DISPOSAL OF STEERING WHEEL PAD (WITH AIRBAG)
CAUTION:
wThe steering wheel pad is very hot when the airbag is
deployed, so leave it alone for at least 30 minutes after
deployment.
wUse gloves and safety glasses when handling a steering
wheel pad with a deployed airbag.
wDo not apply water, etc. to a steering wheel pad with a
deployed airbag.
wAlways wash your hands with water after completing the
operation.
(a) Remove the steering wheel pad from the disc wheel.
(b) Place the steering wheel pad in a vinyl bag, tie the end tightly
and dispose of it the same way as other general parts.
CONFIRM FUNCTIONING OF SST
When deploying the airbag, always use the specified
SST: SRS AIRBAG DEPLOYMENT TOOL.
SST 09082±00700
1. CONNECT SST TO BATTERY
Connect the red clip of the SST to the battery positive (+) ter-
minal and the black clip to the battery negative (±) terminal.
HINT: Do not connect the yellow connector which connects
with the supplemental restraint system.
2. CONFIRM FUNCTIONING OF SST
Press the SST activation switch, and confirm the LED of the
SST activation switch lights up.
CAUTION: If the LED lights up when the activation switch
is not being pressed, SST malfunction is probable, so
definitely do not use the SST.
± SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLERS±19

FRONT PASSENGER AIRBAG
ASSEMBLY
INSPECTION ITEMS
1. VEHICLES NOT INVOLVED IN A COLLISION
(a) Do a diagnostic system check. (See page RS±44)
(b) Do a visual check which includes the following items with the
front passenger airbag assembly installed in the vehicle.
wCheck for cuts, minute cracks or marked discoloration
of the front passenger airbag door.
2. VEHICLE INVOLVED IN A COLLISION
IF THE AIRBAG IS NOT DEPLOYED
(a) Do a diagnostic system check. (See page RS±44)
(b) Do a visual check which includes the following items with the
airbag assembly removed from the vehicle.
wCheck for cuts and cracks in, or marked discoloration of
the front passenger airbag door.
wCheck for cuts and cracks in wire harnesses, and for
chipping in connectors.
wCheck for deformation of the instrument panel and
instrument panel reinforcement.
HINT:
wIf the instrument panel or instrument panel
reinforcement is deformed, never repair it. Always
replace it with a new one.
wThere should be no interference between the
instrument panel and front passenger airbag door. The
clearance should be uniform all the way around when
the new airbag assembly is installed on the instrument
panel.
CAUTION: For removal and installation of the front pas-
senger airbag assembly, see page RS±23, ºFRONT PAS-
SENGER AIRBAG ASSEMBLY REMOVAL AND INSTAL-
LATIONº and be sure to follow the correct procedure. RS±20
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY

IF THE AIRBAG IS DEPLOYED
(a) Do a diagnostic system check. (See page RS±44)
(b) Do a visual check which includes the following items with the
airbag assembly removed from vehicle.
wCheck for deformation of the instrument panel and
instrument panel reinforcement.
wCheck for damage to the connector and wire harness.
HINT:
wIf the instrument panel or instrument panel
reinforcement is deformed, never repair it. Always
replace it with a new one.
wThere should be no interference between the
instrument panel and front passenger airbag door. The
clearance should be uniform all the way around when
the new airbag assembly is installed on the instrument
panel.
REPLACEMENT REQUIREMENTS
In the following case, replace the front passenger airbag as-
sembly, instrument panel and instrument panel reinforce-
ment.
wIf the airbag has been deployed.
wIf the front passenger airbag assembly has been found
to be faulty in troubleshooting.
wIf the front passenger airbag assembly, instrument
panel or instrument panel reinforcement has been
found to be faulty during the check in items 1±(b) or
2±(b).
wIf the front passenger airbag assembly has been
dropped.
CAUTION: For replacement of the front passenger airbag
assembly, see page RS±23, ªFRONT PASSENGER AIR-
BAG ASSEMBLY REMOVAL AND INSTALLATIONº and
be sure to follow the correct procedure.
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLYRS±21

COMPONENTS
RS±22± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY

FRONT PASSENGER AIRBAG
ASSEMBLY REMOVAL AND
INSTALLATION
NOTICE:
wIf the wiring connector of the SRS is disconnected with
the ignition switch at ON or ACC, diagnostic trouble
codes will be recorded.
wNever use airbag parts from another vehicle. When
replacing parts, replace with new parts.
1. DISCONNECT AIRBAG CONNECTOR
(a) Remove negative (±) terminal cable from the battery, and
wait at least 90 seconds.
(b) Remove the glove compartment door finish plate inside the
instrument panel box.
NOTICE: When handling the airbag connector, take care
not to damage the airbag wire harness.
(c) Pull up the connector.
(d) Disconnect the airbag connector.
2. REMOVE THESE PARTS:
(a) Instrument panel box
(See page BO±49)
(b) Heater to register duct No. 4
3. REMOVE FRONT PASSENGER AIRBAG ASSEMBLY
(a) Remove the 4 bolts.
(b) Pull the front passenger airbag assembly to remove it.
CAUTION:
wDo not store the front passenger airbag assembly with
the airbag door facing down.
wNever disassemble the front passenger airbag assembly.
4. INSTALL FRONT PASSENGER AIRBAG ASSEMBLY
(a) Install the front passenger airbag assembly.
(b) Install the 2 bolts to instrument panel reinforcement.
Torque: 21 NVm (210 kgfVcm, 15 ftVlbf)
(c) Install the 2 bolts to instrument panel.
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
NOTICE:
wMake sure the front passenger airbag assembly is
installed to the specified torque.
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLYRS±23

wIf the front passenger airbag assembly has been
dropped, or there are cracks, dents or other defects in the
case or connector, replace the front passenger airbag
assembly with a new one.
wAdhesive has been applied to the 2 instrument panel
bolts. When the front passenger airbag assembly is
removed, always replace the bolts with new ones.
wWhen installing the front passenger airbag assembly,
take care that the wirings do not interfere with other parts
and are not pinched between other parts.
5. INSTALL THESE PARTS:
(a) Heater to register duct No. 4
(b) Instrument panel box
(See page BO±49)
NOTICE: When installing the instrument panel box, care-
fully pull out the airbag wire harness from the glove
compartment upper hole.
6. CONNECT AIRBAG CONNECTOR
(a) Connect the airbag connector.
(b) Put the connector on the glove compartment door finish
plate.
(c) Install the glove compartment door finish plate to the
instrument panel box. RS±24
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY

FRONT PASSENGER AIRBAG
ASSEMBLY DISPOSAL
When scrapping vehicles equipped with an SRS or disposing
of a front passenger airbag assembly, always first deploy the
airbag in accordance with the procedure described below.
If any abnormality occurs with the airbag deployment, con-
tact the SERVICE DEPT. of TOYOTA MOTOR SALES,
U.S.A., INC..
Never dispose of a front passenger airbag assembly
which has an undeployed airbag.
When disposing of a front passenger airbag assembly with
an airbag deployed in a collision, follow the same procedure
given under ºWhen scrapping vehicle, step 5. DISPOSAL OF
FRONT PASSENGER AIRBAG ASSEMBLYº.
PRECAUTIONS FOR AIRBAG DEPLOYMENT
wThe airbag produces a sizeable exploding sound when
it deploys, so do the operation out±of±doors and where
it will not create a nuisance to nearby residents.
wWhen deploying the airbag, always use the specified
SST: SRS AIRBAG DEPLOYMENT TOOL (SST
09082±00700).
Carry out the operation in a place away from electrical
noise.
wWhen deploying an airbag, do it at least 10 m (33 ft)
away from the front passenger airbag assembly.
wThe front passenger airbag assembly is very hot when
the airbag is deployed, so leave it alone for at least 30
minutes after deployment.
wUse gloves and safety glasses when handling a front
passenger airbag assembly with a deployed airbag.
wDo not apply water, etc., to a front passenger airbag
assembly with a deployed airbag.
wAlways wash your hands with water after completing the
operation.
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLYRS±25

When scrapping vehicle
HINT: Have a battery ready as the power source to deploy the
airbag.
1. CONFIRM FUNCTIONING OF SST
(See page RS±19)
SST 09082±00700
2. DISCONNECT AIRBAG CONNECTOR
(a) Remove the glove compartment finish plate inside the
instrument panel box.
NOTICE: When handling the airbag connector, take care
not to damage the airbag wire harness.
(b) Pull up the connector.
(c) Disconnect the airbag connector.
3. INSTALL SST
(a) Connect the SST connector to the front passenger airbag
assembly connector.
SST 09082±00700
NOTICE: To avoid damaging the SST connector and wire
harness, do not lock the secondary lock of the twin lock.
(b) Move the SST to at least 10 m (33 ft) from the front of the
vehicle.
(c) Close all the doors and windows of the vehicle.
NOTICE: Take care not to damage the SST wire harness.
(d) Connect the SST red clip to the battery positive (+) terminal
and the black clip to the battery negative (±) terminal.
4. DEPLOY AIRBAG
(a) Confirm that no±one is inside the vehicle or within 10 m
(33 ft) of the vehicle.
(b) Press the SST activation switch and deploy the airbag.
HINT: The airbag deploys simultaneously as the LED of the
SST activation switch lights up. RS±26
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY

5. DISPOSAL OF FRONT PASSENGER AIRBAG
ASSEMBLY
CAUTION:
wThe front passenger airbag assembly is very hot when
the airbag is deployed, so leave it alone for at least 30
minutes after deployment.
wUse gloves and safety glasses when handling a front
passenger airbag assembly with deployed airbag.
wDo not apply water, etc., to a front passenger airbag
assembly with deployed airbag.
wAlways wash your hands with water after completing the
operation.
When scrapping a vehicle, deploy the airbag and scrap the
vehicle with the front passenger airbag assembly still
installed.
When disposing of front passenger airbag
assembly only
When disposing of the front passenger airbag assembly
only, never use the customer's vehicle to deploy the air-
bag.
Remove the front passenger airbag assembly from the ve-
hicle and be sure to follow the procedure given below when
deploying the airbag.
HINT: Have a battery ready as the power source to deploy the
airbag.
1. REMOVE FRONT PASSENGER AIRBAG ASSEMBLY
(See page RS±23)
CAUTION:
wWhen removing the front passenger airbag assembly,
work must be started after 90 seconds from the time the
ignition switch is turned to the ºLOCKº position and the
negative (±) terminal cable is disconnected from the
battery.
wStore the front passenger airbag assembly with the
airbag door facing up.
2. FIX FRONT PASSENGER AIRBAG ASSEMBLY TO TIRE
Using a service±purpose wire harness for vehicle, tie down
the front passenger airbag assembly to the tire.
Wire harness: Stripped wire harness section
1.25 mm
2 or more (0.0019 in.2 or more)
HINT: To calculate the square of the stripped wire harness
section
Square = 3.14 X (Diameter)
2 divided by 4
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLYRS±27