Lexus ES300 (1997 year). Manual — part 563

AB0158

SST

Battery

AB0152

SST

AB0158

SST

Battery

H01580

SST

W03626

RS–12

–

SUPPLEMENTAL RESTRAINT SYSTEM

STEERING WHEEL PAD AND SPIRAL CABLE

1356

1997 LEXUS ES300 (RM511U)

1.

AIRBAG DEPLOYMENT WHEN SCRAPPING VE-
HICLE

HINT:
Have a battery ready as the power source to deploy the airbag.

(a)

Confirm functioning of the SST.

CAUTION:
When deploying the airbag, always use the specified SST:
SRS Airbag Deployment Tool.

SST

09082–00700

(1)

Connect the SST to the battery.
Connect the red clip of the SST to the battery posi-
tive (+) terminal and the black clip to the battery neg-
ative (–) terminal.

HINT:
Do not connect the yellow connector which will be connected
with the supplemental restraint system.

(2)

Confirm functioning of the SST.
Press the SST activation switch, and check that 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.

(b)

Install the SST.

CAUTION:
Check that there is no looseness in the steering wheel and
steering wheel pad.

(1)

Remove the steering column lower cover.
Remove the 3 screws and steering column lower
cover as shown in the illustration.

(2)

Disconnect the airbag connector of the spiral cable.

W03628

SST

R13455

10 m (33 ft) or more

R06753

–

SUPPLEMENTAL RESTRAINT SYSTEM

STEERING WHEEL PAD AND SPIRAL CABLE

RS–13

1357

1997 LEXUS ES300 (RM511U)

(3)

Connect the SST connector to the airbag connector
of the spiral cable.

SST

09082–00700

(4)

Move the SST at least 10 m (33 ft) away from the
front of the vehicle.

(5)

Close all the doors and window of the vehicle.

NOTICE:
Take care not to damage the SST wire harness.

(6)

Connect the SST red clip to the battery positive (+)
terminal and the black clip to the negative (–) termi-
nal.

(c)

Deploy the airbag.
(1)

Confirm that no one is inside the vehicle or within 10
m (33 ft) area around the vehicle.

(2)

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.
(d)

Dispose of steering wheel pad (with airbag).

CAUTION:

The steering wheel pad is very hot when the airbag is
deployed, so leave it alone for at least 30 minutes af-
ter deployment.

Use gloves and safety glasses when handling a steer-
ing wheel pad with the deployed airbag.

Always wash your hands with water after completing
the operation.

Do not apply water, etc. to a steering wheel pad with
the deployed airbag.
(1)

When scrapping a vehicle, deploy the airbag and
scrap the vehicle with the steering wheel pad still
installed.

(2)

When moving a vehicle for scrapping which has a
steering wheel pad with deployed airbag, use
gloves and safety glasses.

W03618

R05748

RS–14

–

SUPPLEMENTAL RESTRAINT SYSTEM

STEERING WHEEL PAD AND SPIRAL CABLE

1358

1997 LEXUS ES300 (RM511U)

2.

DEPLOYMENT WHEN DISPOSING OF STEERING
WHEEL PAD ONLY

NOTICE:

When disposing of the steering wheel pad (with air-
bag) only, never use the customers vehicle to deploy
the airbag.

Be sure to follow the procedure given below when de-
ploying the airbag.

HINT:
Have a battery ready as the power source to deploy the airbag.
(a)

Remove the steering wheel pad.
(See page

SR–11

)

CAUTION:
When storing the steering wheel pad, keep the upper sur-
face of the pad facing upward.
(b)

Remove the steering wheel pad connector.
Remove the connector on the rear surface of the steering
wheel pad from the bracket.

(c)

Fix the steering wheel pad to the disc wheel with tire.
(1)

Install the 2 bolts with washer in the 2 bolt holes on
the steering wheel pad.

Bolt:
L: 35. mm (1.387 in.)
M: 6.0 mm (0.236 in.)
Pitch: 1.0 mm (0.039 in.)

NOTICE:

Tighten the bolts by hand until the bolts become diffi-
cult to turn.

Do not tighten the bolts too much.

AB0163

Wire Harness
Diameter

Stripped Wire Harness Section

R05749

2 Times or more

–

SUPPLEMENTAL RESTRAINT SYSTEM

STEERING WHEEL PAD AND SPIRAL CABLE

RS–15

1359

1997 LEXUS ES300 (RM511U)

(2)

Using a service–purpose wire harness tie down the
steering wheel pad to the disc wheel.

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

CAUTION:
If a wire harness which is too thin or some other thing is
used to tie down the steering wheel pad, it may be snapped
by the shock when the airbag is deployed. This is highly
dangerous. Always use a wire harness for vehicle use
which is at least 1.25 mm

2

(0.0019 in

2

).

(3)

Using 3 wire harnesses, wrap the wire harness at
least 2 times each around the bolts installed on the
left and right sides of the steering wheel pad.

CAUTION:

Tightly wind the wire harness around the bolts so that
there is no slack.

If there is slackness in the wire harness, the steering
wheel pad may come loose due to the shock when the
airbag is deployed. This is highly dangerous.