Lexus RX300 (MCU15). Service manual — part 72

INTRODUCTION

HOW TO USE THIS MANUAL

IN–1

. . . . . . . . . . . . .

GENERAL INFORMATION

IN–1

. . . . . . . . . . . . . . . . . .

IDENTIFICATION INFORMATION

IN–3

. . . . . . . . . .

VEHICLE IDENTIFICATION AND

ENGINE SERIAL NUMBER

IN–3

. . . . . . . . . . . . . . .

REPAIR INSTRUCTIONS

IN–4

. . . . . . . . . . . . . . . . .

GENERAL INFORMATION

IN–4

. . . . . . . . . . . . . . . . . .

VEHICLE LIFT AND

SUPPORT LOCATIONS

IN–8

. . . . . . . . . . . . . . . . . .

FOR ALL OF VEHICLES

IN–10

. . . . . . . . . . . . . . . . . .

PRECAUTION

IN–10

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

HOW TO TROUBLESHOOT ECU

CONTROLLED SYSTEMS

IN–21

. . . . . . . . . . . . . .

GENERAL INFORMATION

IN–21

. . . . . . . . . . . . . . . . . .

HOW TO PROCEED WITH

TROUBLESHOOTING

IN–22

. . . . . . . . . . . . . . . . . . . .

HOW TO USE THE DIAGNOSTIC CHART AND

INSPECTION PROCEDURE

IN–32

. . . . . . . . . . . . . . .

TERMS

IN–37

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ABBREVIATIONS USED IN THIS MANUAL

IN–37

. . . .

IN00U–40

N17080

Filler Cap

Float

Reservoir Tank

z Grommet

Clip

Slotted Spring Pin

: Specified torque

z Non–reusable part

Cylinder

Piston

Push Rod

Washer

Snap Ring

Boot

z Gasket

Lock Nut

Clevis Pin

Clevis

N·m (kgf·cm, ft·lbf)

12 (120, 9)

15 (155, 11)

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INTRODUCTION

HOW TO USE THIS MANUAL

IN–1

LEXUS RX300 (RM785E)

HOW TO USE THIS MANUAL

GENERAL INFORMATION

1.

INDEX

An INDEX is provided on the first page of each section to guide you to the item to be repaired. To assist you
in finding your way through the manual, the Section Title and major heading are given at the top of every
page.
2.

PRECAUTION

At the beginning of each section, a PRECAUTION General Description is given that pertains to all repair
operations contained in that section.
Read these precautions before starting any repair task.
3.

TROUBLESHOOTING

TROUBLESHOOTING tables are included for each system to help you diagnose the problem and find the
cause. The fundamentals of how to proceed with troubleshooting are described on page IN–22.
Be sure to read this before performing troubleshooting.
4.

PREPARATION

Preparation lists the SST (Special Service Tools), recommended tools, equipment, lubricant and SSM (Spe-
cial Service Materials) which should be prepared before beginning the operation and explains the purpose
of each one.
5.

REPAIR PROCEDURES

Most repair operations begin with an overview illustration. It identifies the components and shows how the
parts fit together.
Example:

Illustration:

what to do and where

21. CHECK PISTON STROKE OF OVERDRIVE BRAKE

(a)

Task heading : what to do

SST 09350–30020 (09350–06120)

Set part No.

Component part No.

Detailed text :

how to do task

(b)

Piston stroke: 1.40 Ċ 1.70 mm (0.0551 Ċ 0.0669 in.)

Specification

Place SST and a dial indicator onto the overdrive brake pis-
ton as shown in the illustration.

Measure the stroke applying and releasing the compressed
air (392 Ċ 785 kPa, 4 Ċ 8 kgf/cm

2

or 57 Ċ 114 psi) as shown

in the illustration.

IN–2

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INTRODUCTION

HOW TO USE THIS MANUAL

LEXUS RX300 (RM785E)

The procedures are presented in a step–by–step format:

S

The illustration shows what to do and where to do it.

S

The task heading tells what to do.

S

The detailed text tells how to perform the task and gives other information such as specifications
and warnings.

Example:

This format provides the experienced technician with a FAST TRACK to the information needed. The upper
case task heading can be read at a glance when necessary, and the text below it provides detailed informa-
tion. Important specifications and warnings always stand out in bold type.
6.

REFERENCES

References have been kept to a minimum. However, when they are required you are given the page to refer
to.
7.

SPECIFICATIONS

Specifications are presented in bold type throughout the text where needed. You never have to leave the
procedure to look up your specifications. They are also found in Service Specifications section for quick ref-
erence.
8.

CAUTIONS, NOTICES, HINTS:

S

CAUTIONS are presented in bold type, and indicate there is a possibility of injury to you or other
people.

S

NOTICES are also presented in bold type, and indicate the possibility of damage to the components
being repaired.

S

HINTS are separated from the text but do not appear in bold. They provide additional information to
help you perform the repair efficiently.

9.

SI UNIT

The UNITS given in this manual are primarily expressed according to the SI UNIT (International System of
Unit), and alternately expressed in the metric system and in the English System.

Example:

Torque: 30 N·m (310 kgf·cm, 22 ft·lbf)