Lexus RX300 (MCU15). Manual — part 62

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BODY ELECTRICAL — WIPER

121

WIPER

JMULTI-LINK WIPER

1. General

The telescopic wiper consists of a wiper arm for the front passenger side that wipes telescopically from
the stopped position to the upper return position in order to enlarge the wiping area.

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Wiping area enlarged through
the telescopic movement

Multi-link Type

Conventional Type

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2. Construction

The multi-link wiper mainly consists of a driver wiper arm, passenger wiper arm, main lever, idle lever,
wiper link and wiper motor.

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Passenger Wiper Arm

Idle Lever

Driver Wiper Arm

Pivot

Pivot

Pivot

Wiper Link

Main Lever

Wiper Motor
Rotation Diameter

Wiper Link

BODY ELECTRICAL — WIPER

122

3. Operation

D With the rotation of the wiper motor, the wiper link for driving wiper will operate and connection point

P1 with the main lever will move toward the arrow mark by the influence of the wiper link with a pivot
as a supporting point. With this, the connection point P2 between the arm and the idle lever becomes
the supporting point of the pry and starts wiping by holding the arm upward.

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Wiper Arm

Pivot

Pivot

Wiper Link

Main Lever

Idle Lever

P1

P2

Direction of Rotation
of Wiper Motor

D In addition, when the wiper motor rotates, P1 and P2 will move toward the arrow mark.

Then, the wiper arm with P3 as a supporting point will rise by the influence of the idle arm as if expanding
upward to the left. With this, it enables to wipe wider range.

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Wiper Arm

P1

P2

Direction of Rotation
of Wiper Motor

P3

Idle Arm

D When the wiper motor rotates more, P1 and P2 will move toward the arrow mark. The wiper arm with

P2 as a supporting point will move toward contracting direction and wipe further to the upper reversal
position.

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Wiper
Arm

P1

P2

Direction of Rotation
of Wiper Motor

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BODY ELECTRICAL — AIR CONDITIONER

123

AIR CONDITIONER

JDESCRIPTION

1. General

The air conditioner system in the RX300 has the following features:

D A automatic controlled type air conditioner system is standard equipment.
D A multi-tank, super-slim structure evaporator has been adopted.
D A compact, lightweight, and highly efficient straight flow (full-path flow) aluminum heater core has

been adopted.

D A semi-center location air conditioner unit, in which the evaporator and heater core are placed in the

vehicle’s longitudinal direction, has been adopted.

D A clean air filter that excepts in removing pollen and dust is optional equipment.
D The heater exchange efficiency has been improved through the adoption of the sub-cool condenser.
D A rear heater duct and a console duct have been adopted to ensure the proper air conditioner performance

for the rear seat area.

" Performance A

Heat Output

W (Kcal/h)

5200 (4472)

Heater

Air Flow Volume

m

3

/h

340

Power Consumption

W

210

Heat Output

W (Kcal/h)

5600 (4816)

Air Conditioner

Air Flow Volume

m

3

/h

530

POwer Consumption

W

260

" Specifications A

Type

Straight Flow

(Full-path Flow)

Ventilation

and

Heater Core

Size

W

× H × L mm (in.)

264.1

× 100 × 27

(10.4

× 3.9 × 1.06)

and

Heater

Fin Pitch

mm (in.)

1.8 (0.07)

Blower

Motor Type

S80FS12.5T

Blower

Fan Size

Dia.

× H mm (in.)

180

× 70 (7.1 × 2.8)

Type

Multi-flow

(Sub-cool)

Condenser

Size

W

× H × L mm (in.)

690

× 407 × 16

(27.2

× 16.0 × 0.6)

Ai

Fin Pitch

mm (in.)

3.6 (0.14)

Air

Conditioner

Type

Drawn Cup

(Multi-tank, Super-slim Structure)

Evaporator

Size

W

× H × L mm (in.)

291.6

× 215 × 58

(11.5

× 8.5 × 2.3)

Fin Pitch

mm (in.)

4.0 (0.16)

Compressor

Type

10S17

BODY ELECTRICAL — AIR CONDITIONER

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124

2. Mode Position and Damper Operation

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Side Defroster

Front
Defroster

Side Defroster

Mode Control
Damper

Heater Core

Evaporator

Recirc.
Air

Recirc. Air

Air Mix
Control
Damper

Fresh Air

Air Inlet Control
Damper

Blower Fan

Side Register

Front Center Register
Rear Center Register
Front Center Register

Side Register

Front Footwell Register Duct

Front Footwell Register Duct

Rear Footwell Register Duct

Rear Footwell Register Duct

I

J

K

L

H

G

F

C

D

E

A

A

B

" Function of Main Damper A

Control

Damper

Control Position

Damper

Position

Operation

Air Inlet
Control

FRESH

A

Brings in fresh air.

Control
Damper

RECIRC

B

Recirculates internal air.

MAX COLD

C

Fixes the cooling capability to maximum.

Air Mix
C

t l

MAX HOT

E

Fixes the heating capability to maximum.

Control
Damper

TEMP SETTING
18 ~ 32

°C

D

Varies the mixture ratio of the fresh air and the recir-
culation air in order to regulate the temperature contin-
uously from HOT to COLD.

FACE

F, I

Air blows out of the front and rear center registers, and
side register.

BI-LEVEL

G, I

Air blows out of the front and rear center registers, side
register, and front and rear footwell register ducts. The
occupants’ head area can be kept cold while warming
up their feet by adjusting the temperature setting knob.

Mode
Control

Manual

H, I

Air blows out of the front and rear footwell register
ducts, and side register.

Control
Damper

FOOT

Auto-
matic

H, J

Air blows out of the front and rear footwell register
ducts, and side register. In addition, air blows out
slightly from the front defroster and side defroster.

FOOT/DEF

H, K

Defrosts the windshield through the front defroster,
side defroster, and side register, while air is also blown
out from the front and rear footwell register ducts.

DEF

H, L

Defrosts the windshield through the front defroster,
side defroster, and side register.