Lexus ES300 (2002 year). Service manual — part 274

Z13951

Example:

D26601

Example:

CORRECT

WRONG

B01546

Example:

01-12

-

INTRODUCTION

REPAIR INSTRUCTION

12

2002 LEXUS ES300 REPAIR MANUAL (RM911U)

(e)

FRONT SEAT AIRBAG ASSEMBLY
(1)

Always store a removed or new front seat airbag assembly with the airbag direction facing up-
ward. Placing the airbag assembly with the airbag inflation direction facing downward could
cause a serious accident if the airbag inflates.

(2)

Never measure the resistance of the airbag squib (This may cause the airbag to inflate, which
is very dangerous).

(3)

Grease should not be applied to the front seat airbag assembly, and the airbag door should not
be cleaned with detergents of any kind.

(4)

Store the airbag assembly where the ambient temperature remains below 93

°

C (200

°

F), without

high humidity and away from electrical noise.

(5)

When using electric welding, first disconnect the airbag connector (2 yellow pins) installed on the
assembly before starting work.

(6)

When disposing of a vehicle or the side airbag assembly alone, the airbag should be deployed
using an SST before disposal (See page

60-46

).

Perform the operation in a safe place away from electrical noise.

D26602

Example:

CORRECT

WRONG

Clear Plastic Bag

D26603

Example:

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INTRODUCTION

REPAIR INSTRUCTION

01-13

13

2002 LEXUS ES300 REPAIR MANUAL (RM911U)

(f)

CURTAIN SHIELD AIRBAG ASSEMBLY
(1)

Always store the removed or new curtain shield airbag assembly in a clear plastic bag, and keep
it in a safe place.

NOTICE:
Protection bag is not re-useable.
CAUTION:
Never disassemble the curtain shield airbag assembly.

(2)

Never measure the resistance of the airbag squib (This may cause the airbag to inflate, which
is very dangerous).

(3)

Grease should not be attached to the curtain shield airbag assembly, and the surface should not
be cleared with detergents of any kind.

(4)

Store the airbag assembly where the ambient temperature remains below 93

°

C (200

°

F), without

high humidity and away from electrical noise.

(5)

When using electric welding, first disconnect the airbag connector (2 yellow pins) into the instru-
ment panel before starting work.

(6)

When disposing of a vehicle or the curtain shield airbag assembly alone, the airbag should be
deployed using an SST before disposal (See page

60-40

).

Perform the operation in a safe place away from electrical noise.

D26744

Example:

01-14

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INTRODUCTION

REPAIR INSTRUCTION

14

2002 LEXUS ES300 REPAIR MANUAL (RM911U)

(g)

SEAT BELT PRETENSIONER
(1)

Never measure the resistance of the seat belt pretensioner (This may cause the seat belt preten-
sioner to activate, which is very dangerous).

(2)

Never disassemble the seat belt pretensioner.

(3)

Never install the seat belt pretensioner to another vehicle.

(4)

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

°

C (176

°

F)

without high humidity and away from electrical noise.

(5)

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

(6)

When disposing of a vehicle or the seat belt pretensioner alone, the seat belt pretensioner should
be activated before disposal (See page

61-13

). Perform the operation in a safe place away from

electrical noise.

(7)

The seat belt pretensioner is hot after activation, so let it cool down sufficiently before disposal.
Never apply water to cool down the seat belt pretensioner.

(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.

(h)

AIRBAG SENSOR ASSEMBLY
(1)

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

(2)

The connectors to the airbag sensor assembly should be connected or disconnected with the
sensor mounted on the floor. If the connectors are connected or disconnected while the airbag
sensor assembly is not mounted to the floor, it could cause an undesired ignition of the supple-
mental restraint system.

(3)

Work must be started after 90 seconds from the time the ignition switch is turned to the ”LOCK”
position and the negative (-) terminal cable is disconnected from the battery, even if only loosen-
ing the set bolts of the airbag sensor assembly.

(i)

WIRE HARNESS AND CONNECTOR
(1)

The SRS wire harness is integrated with the instrument panel wire harness assembly. All the con-
nectors in the system are in a standard yellow color. If the SRS wire harness becomes discon-
nected or the connector becomes broken due to an accident, etc., repair or replace it.

D25080

Negative (-)
Terminal

D01556

WRONG

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INTRODUCTION

REPAIR INSTRUCTION

01-15

15

2002 LEXUS ES300 REPAIR MANUAL (RM911U)

3.

ELECTRONIC CONTROL

(a)

REMOVAL AND INSTALLATION OF BATTERY TERMI-
NAL
(1)

Before performing electrical work, disconnect the
battery negative (-) terminal cable beforehand so
as to prevent burnt-out damage by short.

(2)

When disconnecting and installing the terminal
cable, turn the ignition switch and lighting switch
OFF, and loosen the terminal nut completely. Per-
form these operations without twisting or prying the
terminal.

(3)

When the battery terminal is removed, all the me-
mories of the clock, radio, DTCs, etc. will be erased.
So before removing it, check them and note them
down.

(4)

When the battery terminal is disconnected, the slid-
ing roof position memory is erased.
Make sure to reset the sliding roof zero point See
page

74-8

.

(b)

HANDLING OF ELECTRONIC PARTS
(1)

Do not open the cover or case of the ECU unless
absolutely necessary (If the IC terminals are
touched, the IC may be destroyed by static electric-
ity).

(2)

To disconnect electronic connectors, pull the con-
nector itself, not the wires.

(3)

Be careful not to drop electronic components, such
as sensors or relays. If they are dropped on a hard
floor, they should be replaced and not be reused.

(4)

When cleaning the engine with steam, protect the
electronic components, air filter and emission-re-
lated components from water.

(5)

Never use an impact wrench to remove or install
temperature switches or temperature sensors.

(6)

When checking the continuity at the wire connector,
insert the tester probe carefully to prevent terminals
from bending.

4.

REMOVAL AND INSTALLATION OF FUEL CONTROL PARTS

(a)

PLACE FOR REMOVING AND INSTALLING OF FUEL SYSTEM PARTS
(1)

Work in a place with good air ventilation and without anything flammable such as welder, grinder,
drill, electric motor or stove in the surroundings.

(2)

Never work in a place such as a pit or nearby a pit, as there is a possibility that vaporized fuel
is filled in those places.