Lexus GS300/400 (2000 year). Manual — part 155

B02121

Example:

–

INTRODUCTION

FOR ALL OF VEHICLES

IN–15

15

(g)

SEAT BELT PRETENSIONER
(1)

Never measure the resistance of the seat belt pre-
tensioner. (This may cause the seat belt pretension-
er to activate, which is very dangerous.)

(2)

Never disassemble the seat belt pretensioner.

(3)

Never install the seat belt pretensioner in another
vehicle.

(4)

Store the seat belt pretensioner where the ambient
temperature remains below 80

°

C (176

°

F) and

away from electrical noise without high humidity.

(5)

When using electric welding, first disconnect the
connector (yellow color and 2 pins) before starting
work.

(6)

When disposing of a vehicle or the seat belt preten-
sioner alone, the seat belt pretensioner should be
activated before disposal (See page BO–130). Per-
form the operation in a safe place away from electri-
cal noise.

(7)

The seat belt pretensioner is hot after activation, so
let it cool down sufficiently before the disposal.
However never apply water to the seat belt preten-
sioner.

(8)

Oil or water should not be put on the front seat outer
belt and the front seat outer belt should not be
cleaned with detergents of any kind.

IN–16

–

INTRODUCTION

FOR ALL OF VEHICLES

16

(h)

AIRBAG SENSOR ASSEMBLY
(1)

Never reuse the airbag sensor assembly involved
in a collision when the SRS has deployed.

(2)

The connectors to the airbag sensor assembly
should be connected or disconnected with the sen-
sor mounted on the floor. If the connectors are con-
nected or disconnected while the airbag sensor as-
sembly is not mounted to the floor, it could cause
undesired ignition of the supplemental restraint sys-
tem.

(3)

Work must be started after 90 seconds from the
time the ignition switch is turned to the ”LOCK” posi-
tion and the negative (–) terminal cable is discon-
nected from the battery, even if only loosing the set
bolts of the airbag sensor assembly.

(i)

WIRE HARNESS AND CONNECTOR
The SRS wire harness is integrated with the instrument
panel wire harness assembly. All the connectors in the
system are a standard yellow color. If the SRS wire har-
ness becomes disconnected or the connector becomes
broken due to an accident, etc., repair or replace it as
shown on page

RS–68

.

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INTRODUCTION

FOR ALL OF VEHICLES

IN–17

17

2.

FOR VEHICLES EQUIPPED WITH A CATALYTIC CONVERTER

CAUTION:
If large amount of unburned gasoline flows into the converter, it may overheat and create a fire haz-
ard. To prevent this, observe the following precautions and explain them to your customer.
(a)

Use only unleaded gasoline.

(b)

Avoid prolonged idling.
Avoid running the engine at idle speed for more than 20 minutes.

(c)

Avoid spark jump test.
(1)

Perform spark jump test only when absolutely necessary. Perform this test as rapidly as possible.

(2)

While testing, never race the engine.

(d)

Avoid prolonged engine compression measurement.
Engine compression tests must be done as rapidly as possible.

(e)

Do not run engine when fuel tank is nearly empty.
This may cause the engine to misfire and create an extra load on the converter.

(f)

Avoid coasting with ignition turned off.

(g)

Do not dispose of used catalyst along with parts contaminated with gasoline or oil.

3.

IF VEHICLE IS EQUIPPED WITH MOBILE COMMUNICATION SYSTEM

For vehicles with mobile communication systems such as two–way radios and cellular telephones, observe
the following precautions.

(1)

Install the antenna as far as possible away from the ECU and sensors of the vehicle’s electronic
system.

(2)

Install the antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the ve-
hicle’s electronic systems. For details about ECU and sensors locations, refer to the section on
the applicable component.

(3)

Avoid winding the antenna feeder together with other wiring as much as possible, and also avoid
running the antenna feeder parallel with other wire harnesses.

(4)

Check that the antenna and feeder are correctly adjusted.

(5)

Do not install powerful mobile communications system.

4.

FOR USING OBD II SCAN TOOL OR LEXUS HAND–HELD TESTER

CAUTION:
Observe the following items for safety reasons:

Before using the OBD II scan tool or LEXUS hand–held tester, the OBD II scan tool’s instruction
book or LEXUS hand–held tester’s operator manual should be read thoroughly.

Be sure to route all cables securely when driving with the OBD II scan tool or LEXUS hand–held
tester connected to the vehicle. (i.e. Keep cables away from feet, pedals, steering wheel and
shift lever.)

Two persons are required when test driving with the OBD II scan tool or LEXUS hand–held tes-
ter, one person to drive the vehicle and the other person to operate the OBD II scan tool or LEX-
US hand–held tester.

F02853

B01549

F02853

IN–18

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INTRODUCTION

FOR ALL OF VEHICLES

18

5.

FOR VEHICLES EQUIPPED WITH VEHICLE SKID
CONTROL (VSC) SYSTEM

NOTICE:
When using a 2–wheel drum tester such as a speedometer
tester or chassis dynamometer, etc., or jacking up the rear
wheels and driving the wheels, always push in the TRAC &
VSC cut switch and turn the TRAC & VSC system OFF.

(a)

Press the VSC OFF switch.

(b)

Check that the VSC OFF indicator light comes ON.

HINT:
The VSC OFF indicator light should be always OFF when the
engine is restarted.

(c)

Begin measurements.

(d)

Press the VSC OFF switch again to change the TRAC &
VSC system to operational condition and check that the
VSC OFF indicator light goes off.

HINT:
The SLIP indicator light blinks when the TRAC system is opera-
tional.