Lexus 2005 IS300 User Manual page 1169

SUPPLEMENTAL RESTRAINT SYSTEM
SRS AIRBAG
PRECAUTION
CAUTION:
F
The LEXUS IS 300 is equipped with SRS, which comprises a driver airbag, front passenger air-
bag, side airbag and curtain shield airbag. Failure to carry out service operations in the correct
sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to
a serious accident. Further, if a mistake is made in servicing the SRS, it is possible that the SRS
may fail to operate when required. Before performing servicing (including removal or installa-
tion of parts, inspection or replacement), be sure to read the following items carefully, then fol-
low the correct procedures described in the repair manual.
F
Work must be started 90 seconds after the ignition switch is turned to the "LOCK" position and
the negative (-) terminal cable is disconnected from the battery.
(The SRS is equipped with a back-up power source so that if work is started within 90 seconds
from disconnecting the negative (-) terminal cable of the battery, the SRS may be deployed.)
F
Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly,
curtain shield airbag assembly, airbag sensor assembly, front airbag sensor or side and curtain
shield airbag sensor assembly directly to hot air or flames.
NOTICE:
F
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most impor-
tant source of information when troubleshooting. When troubleshooting the SRS, always in-
spect the DTCs before disconnecting the battery.
F
Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front
passenger airbag assembly, side airbag assembly, airbag sensor assembly, front airbag sen-
sor, curtain shield airbag assembly and side and curtain shield airbag sensor assembly should
be inspected (See page
F
Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during
repairs.
F
Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
F
Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side
airbag assembly, curtain shield airbag assembly, airbag sensor assembly, front airbag sensor
or side and curtain shield airbag sensor assembly in order to reuse it.
F
If the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtain
shield airbag assembly, airbag sensor assembly, front airbag sensor or side and curtain shield
airbag sensor assembly has been dropped, or if there are cracks, dents or other defects in the
case, bracket or connector, replace it with new one.
F
Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting the system's
electrical circuits.
F
Information labels are attached to the periphery of the SRS components. Follow the instruc-
tions on the notices.
F
After work on the SRS is completed, perform the SRS warning light check (See page
F
When the negative (-) terminal cable is disconnected from the battery, the memory of the clock
and audio system will be canceled. So before starting work, make a record of the contents mem-
orized in the audio memory system. When work is finished, reset the audio systems as they
were before and adjust the clock. To avoid erasing the memory in each memory system, never
use a back- up power supply from outside the vehicle.
F
If the vehicle is equipped with a mobile communication system, refer to the precaution in the
IN section.
2005 LEXUS IS300 (RM1140U)
-
RS-15 , RS-29 , RS-43
SRS AIRBAG
, RS-43 , RS-58 , RS-69
Author :
RS-1
RS01Y-54
, RS-74 and RS-79 ).
DI-607
Date :
1917
).