2000 LEXUS GS400 Service Repair Manual

AB0163
Wire Harness
Diameter
Stripped Wire Harness Section
H02596
AB0158
SSTBattery RS±34
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
2265 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(b) Fix the front passenger airbag assembly.
(1) Use a service±purpose wire harness tie down the
front passenger airbag assembly.
Wire harness: Stripped wire harness section
1.25 mm
2
or more (0.0019 in2 or more)
HINT:
To calculate the square of the stripped wire harness section:
Square = 3.14 x (Diameter)
2
divided by 4
CAUTION:
If a wire harness which is too thin or some other thing is
used to tie down the front passenger airbag assembly it
may be snapped by the shock when the airbag is deployed.
This is highly dangerous. Always use a wire harness for ve-
hicle use which is at least 1.25 mm
2 (0.0019 in2).
(2) Wind the wire harness around the mount brackets.
(3) Position the front passenger airbag assembly in-
side the tire with the airbag deployment side facing
inside.
Tire size: Must exceed the following dimensions±
Width 185 mm (7.28 in.)
Inner diameter 360 mm (14.17 in.)
CAUTION:

Make sure the wire harness is tight. It is very danger-
ous when a loose wire harness results in the front
passenger airbag assembly coming free due to the
shock from the airbag deploying.

Always tie down the front passenger airbag assembly
with the airbag deployment side facing inside.
NOTICE:
The tire will be marked by the airbag deployment, so use
the spare tire.
(c) Check functioning of SST.
(See page RS±17)
SST 09082±00700, 09082±00760
(d) Install the SST.
Connect the SST connector to the front passenger airbag
assembly connector.
SST 09082±00700, 09082±00760
NOTICE:
To avoid damage to the SST connector and wire harness,
do not lock the secondary lock of the twin lock.

R09689
Tires
(5 or More)
R05403
H02597
SST
Battery
10 m (33 ft) or more
Front Passenger
Airbag Assembly
R09687
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
RS±35
2266 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(e) Place the tires
(1) Place at least 2 tires under the tire to which the front
passenger airbag assembly is tied.
(2) Place at least 2 tires over the tire to which the front
passenger airbag assembly is tied. The top tier
should have the wheel installed.
(3) Tie the tires together with 2 wire harness.
CAUTION:
Make sure that the wire harness is tight. It is very danger-
ous when loose wire harness results in the tires coming
free due to the shock from the airbag deploying.
HINT:
Place the SST connector and wire harness inside tires. Secure
at least 1 m (3 ft) of slack for the wire harness.
(f) Deploy the airbag.
(1) Connect the SST red clip to the battery positive (+)
terminal and the black clip to the battery negative(±)
terminal.
(2) Check that no one is within 10 m (33 ft) area around
the tire which the front passenger airbag assembly
is tied to.
(3) Press the SST activation switch and deploy the air-
bag.
HINT:
The airbag deploys simultaneously as the LED of the SST ac-
tivation switch lights up.
(g) Dispose of front passenger airbag assembly.
CAUTION:

The front passenger 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 a front
passenger airbag assembly with the deployed airbag.

Always wash your hands with water after completing
the operation.

RS±36
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
2267 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

Do not apply water, etc. to a front passenger airbag
assembly with the deployed airbag.
(1) Remove the front passenger airbag assembly from
the tire.
(2) Place the front passenger airbag assembly in a vi-
nyl bag, tie the end tightly and dispose of it in the
same way as other general parts disposal.

RS07H±01
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
RS±37
2268 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
REPLACEMENT REQUIREMENTS
In the following cases, replace the front passenger airbag assembly, instrument panel or instrument panel
reinforcement.

If the airbag has been deployed.

If the front passenger airbag assembly has been found to be faulty in troubleshooting.

If the front passenger airbag assembly, instrument panel or instrument panel reinforcement has
been found to be faulty during the check in items.(See page RS±29)

If the front passenger airbag assembly has been dropped.
CAUTION:
For replacement of the front passenger airbag assembly, see page RS±28 and RS±38.
Be sure to follow the correct procedure.

RS07I±01
H02591
H02590
H04226
RS±38
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
2269 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
NOTICE:
Never use airbag parts from another vehicle. When replac-
ing parts, replace with new parts.
1. INSTALL FRONT PASSENGER AIRBAG ASSEMBLY
(a) Install the front passenger airbag assembly with 2 nuts.
Torque: 5.6 N´m ( 57 kgf´cm, 49 in.´lbf)
NOTICE:

Pass the straps of the front passenger airbag door
through the brackets on the right and left sides se-
curely.

Install the straps so that they are not pinched be-
tween the airbag and instrument panel.
(b) Install the 2 straps and 2 bolts.
NOTICE:

When installing the front passenger airbag assembly,
make sure that the straps are not distorted and
installed to the brackets securely.

Make sure that the front passenger airbag assembly
is installed to the specified torque.

If 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.

When installing the front passenger airbag assembly,
take care that the wiring does not interfere with other
parts and is not pinched between other parts.
2. INSTALL INSTRUMENT PANEL
(See page BO±97)
Install the 2 bolts to the instrument panel reinforcement.
Torque: 20 N´m (205 kgf´cm, 15 ft´lbf)
3. CONNECT AIRBAG CONNECTOR
(a) Connect the airbag connector.
(b) Install the airbag connector to glove compartment door
finish plate.
(c) Install the glove compartment door finish plate.

RS07J±02
H11866
Seatback CoverFront Seatback Board
Seat Cushion Assembly
Seat Adjuster
Front Seat Inner
Cushion Cover
Seat Track CoverSeat Track Cover
Reclining Adjuster
Inside Cover LH
Front Seat Cushion ShieldFront Seat Outer Belt
Seat Belt Anchor
Cover Cap Power Seat
Switch KnobSide Airbag Assembly
: Specified torque
N´m (kgf´cm, ft´lbf)

Non±reusable part
Hog Ring
61 (622, 45)
61 (622, 45)
19 (194, 14)
37 (375, 27)
37 (375, 27)
42 (430, 31)
37 (375, 27)37 (375, 27)
19 (194, 14)
19 (194, 14)
Headrest Support Headrest
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
RS±39
2270 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
SIDE AIRBAG ASSEMBLY
COMPONENTS

RS0JC±01
N20339
H03709
RS±40
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
2271 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
NOTICE:

If the wiring connector of the SRS is disconnected
and the ignition switch is in 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 OUTER BELT FLOOR AN-
CHOR
(a) Using a screwdriver, remove the seat belt anchor cover
cap.
HINT:
Tape the screwdriver tip before use.
(b) Remove the front seat outer belt floor anchor.
2. REMOVE FRONT SEAT
(a) Using a screwdriver, remove the 4 seat track covers.
HINT:
Tape the screwdriver tip before use.
(b) Remove the 4 bolts, then disconnect the airbag connec-
tor.
NOTICE:
When handling the airbag connector, take care not to dam-
age the airbag wire harness.
(c) Remove the front seat.
3. REMOVE HEADREST
4. REMOVE POWER SEAT SWITCH KNOBS
5. REMOVE FRONT SEAT CUSHION SHIELD
6. REMOVE FRONT SEAT INNER CUSHION COVER
7. REMOVE SIDE AIRBAG ASSEMBLY WIRE HARNESS
(a) Remove the connector from the bracket.
(b) Remove the 5 clamps and wire harness from the seat
cushion frame
8. REMOVE SEAT CUSHION ASSEMBLY
(a) Remove the wire harness from the seat cushion asseml-
by.
(b) Remove the 4 bolts and seat cushion assemlby from the
seat adjuster.

H02863
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY
RS±41
2272 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
9. REMOVE SEATBACK ASSEMBLY
(a) Remove the 2 screws and pull the seatback board down-
ward to remove it.
(b) Remove the hog rings.
(c) Disconnect the connectors.
(d) Remove the 4 bolts and seatback assembly.
NOTICE:
Be careful not to damage the wire harness.
(e) Remove the 2 screws and seat cushion inside cover then
disconnect the wire harness from the seat cover.
HINT:
Do the same for LH and RH.