Lexus ES300 (1997 year). Manual — part 24

94

BODY ELECTRICAL — LIGHTING

BODY ELECTRICAL

LIGHTING

DESCRIPTION

The new ES300 has the following systems:

System

Outline

Headlights

The new ES300 has newly adopted the 4-light multi-reflector type headlights.
For details, see the next page.

Automatic Light Control
System

Positioning the light control switch at AUTO turns the headlights and taillights
on or off, depending on the light availability surrounding the vehicle, as
detected by the automatic light control sensor. In the new model, automatic
light control relay is integrated with the automatic light control sensor.
The basic construction and operation are the same as in the ’95 LS400.

Daytime Running Light System

This system is designed to automatically activate the headlights during the
daytime to keep the car highly visible to other vehicles. As in the previous
model, the headlights are activated at a reduced level from the normal high
beam brightness.
Also, only the high beam headlight bulb is turned on as daytime running light.
The basic construction and operation are the same as in the previous model.

Auto Turn-Off Light System

When the ignition key is turned from ON to ACC or LOCK position and the
driver’s door is opened with the taillights and headlights turned on, this system
automatically turns them off.
The basic operation of this system is the same as in the previous model.

Illuminated Entry System

This system is useful when entering the vehicle, fastening the seat belts and
inserting the ignition key into the key cylinder in the dark.
As in the previous model, when any of the doors is opened, the illuminated
entry system turns on the illumination lights around the ignition key cylinder
and dome light (only when the control switch is at DOOR position)
simultaneously and fade out in about 15 seconds.
The basic operation of this system is the same as in the previous model.

95

BODY ELECTRICAL — LIGHTING

HEADLIGHTS

1. General

On the new ES300, the headlight construction has been changed from the 4-light projector type headlights
of the previous model to the 4-light multi-reflector type headlights.

2. Multi-Reflector Type Headlight

Conventional headlights accomplish the dispersion and distribution of the light that is emitted by the bulbs
through the lens cut pattern. However, with the multi-reflector type headlights, the light from the bulbs is
dispersed and distributed through multiple parabolic shaped reflectors. As a result, the lens cut pattern is no
longer provided in the center of the lens, thus realizing a clear look.

Light Distribution Diagram

96

BODY ELECTRICAL — AIR CONDITIONING

AIR CONDITIONING

DESCRIPTION

1. General

The air conditioning system in the new ES300 has the following features:

A fully automatic controlled type air conditioning system is used on all models.

The heater control panel is an easy-to-use dial and push button type panel.

As in the previous model, an air conditioning unit that incorporates a blower, heater and cooler unit, has
been adopted.

An aluminum heater core has been adopted on all models.

The defroster nozzle inner wall is modified into a radial configuration for smoother air flow.

A defroster-linked air conditioning startup control, which automatically engages the air conditioning
when the defroster mode has been selected, is provided.

As in the previous model, the self-diagnosis function has been adopted.

Performance

Model

New

Previous

Item

New

Previous

H t

Heat Output

W (Kcal/h)

5580 (4800)

←

Heater

Air Flow Volume

*

m

3

/h

360

380

Power Consumption

W

220

←

Ai

Heat Output

W (Kcal/h)

5350 (4600)

←

Air
Conditioning

Air Flow Volume

m

3

/h

530

←

Conditioning

Power Consumption

W

260

←

Defroster

Air Flow Volume

*

m

3

/h

360

←

*

:With Side Vent Closed

Specifications

Model

New

Previous

Item

New

Previous

Type

Dimpled Tube Type

←

n

and

Heater Core

Size

W x H x L mm (in.)

155.7 x 220 x 27

(6.1 x 8.7 x 1.1)

160 x 220 x 32

(6.3 x 8.7 x 1.3)

ation

r

Fin Pitch

mm (in.)

2.0 (0.08)

1.8 (0.07)

entil

a

eater Blower

Motor Type

S80Fs12.5T

S80Fs12T

Ve

n

He

Blower

Size

Dia. x H mm (in.)

150 x 75 (5.9 x 3.0)

←

Type

3–Passage Flow Type

←

g

Condenser

Size

W x H x L mm (in.)

415.6 x 726 x 22

(16.4 x 28.6 x 0.9)

435.2 x 686 x 22

(17.1 x 27.0 x 0.9)

o

ning

Fin Pitch

mm (in.)

4.5 (0.18)

3.5 (0.14)

d

itio

n

Type

Draw Cup Type

←

A

ir Con

d

Evaporator

Size

W x H x L mm (in.)

260 x 252 x 90

(10.2 x 9.9 x 3.5)

←

A

i

Fin Pitch

mm (in.)

4.0 (0.16)

←

Compressor

Type

10PA17C

←

Refrigerant

Type

HFC134a (R134a)

←

97

BODY ELECTRICAL — AIR CONDITIONING

2. Damper Position and Air Flow Relationship