warning light lexus LS400 1994 Electrical Components / 1994 LS400: COMFORT ADJUSTMENT

COMFORT ADJUSTMENT
67
SUPPLEMENTAL RESTRAINT
SYSTEM (SRS)
The Supplemental Restraint System (SRS) consists of
Airbags and Seat Belt Pretensioners. The combination of
these two systems provides further protection to the
driver and front passenger in a severe collision.
Airbags:
In response to a severe frontal impact, the airbags inflate
and reduce the likelihood of the driver and passenger’s
heads from directly hitting the steering wheel and
instrument panel.
Seat belt pretensioners:
In response to a severe frontal impact, the seat belts are
quickly drawn back in by the retractors so that the belts
snugly restrain the driver and front passenger.The passenger airbag is activated together with the driver
airbag, even with no passenger in the front seat.
The seat belt pretensioners are activated together with the
airbags, even with no passenger in the front seat.
This indicator comes on when the ignition key is turned to
the “ACC” or “ON” position. It goes off after about 6
seconds. This means the SRS is operating properly.
The SRS warning light system monitors the front airbag
sensors, center airbag sensor assembly, inflators, seat belt
pretensioners, warning light, interconnecting wiring and power
sources.

COMFORT ADJUSTMENT
68
The SRS is designed to activate in response to a severe
frontal impact within the shaded area shown in the
illustration.
The SRS does not work in the following cases.

Impact from the side or real.

Vehicle overturn

Frontal collision at low speeds
For your safety, be sure to always wear your seat belts.
Front airbag sensorWarning lightFront airbag sensor
Passenger airbag module
(airbag and inflator)
Center airbag sensor assembly
Seat belt pretensioner
Steering wheel
pad assembly
(airbag and
inflator)
Seat belt pretensioner
The center airbag sensor assembly consists of a safing sensor
and center airbag sensor. In a severe frontal impact, a front
airbag sensor and safing sensor, or center airbag sensor and
safing sensor detect the shock, and the center airbag sensor
assembly triggers the inflators and seat belt pretensioners.
Then the inflators fill the airbags and the seat belts are quickly
drawn back in by the retractors to help restrain forward motion
of the occupants.
When the SRS operates, it produces an operating noise and
releases a small amount of smoke-like gas. This gas is
harmless and does not indicate a fire.

COMFORT ADJUSTMENT
71
NOTICE:
Do not perform any of the following changes without
consulting your Lexus dealer. Such changes can
interfere with proper operation of the SRS in some
cases.

Installation of electronic items such as a mobile
two-way radio or cassette tape player.

Modifications to the suspension system.

Repairs made on or near the front fenders, front
console, steering column, steering wheel or
instrument panel near front passenger airbag or seat
belt assembly.
This SRS has a warning light to indicate operating problems.
If either of the following conditions occurs, this indicates a
malfunction of the airbags and / or seat belt pretensioners.
Even if the seat belt pretensioners should fail, the seat belt will
operate conventionally. Contact your Lexus dealer as soon as
possible to service the vehicle.

The light does not come on when the ignition key is turned
to the “ACC” or “ON” position, or remains on.

The light comes on while driving.