Table of Contents
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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.
GENERAL DESCRIPTION
At the beginning of each section, a General Description is given that pertains to all repair operations con-
tained 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
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:
Slotted Spring Pin
15 (155, 11)
Cylinder
N·m (kgf·cm, ft·lbf)
: Specified torque
z Non-reusable part
2005 LEXUS IS300 (RM1140U)
INTRODUCTION
-
Filler Cap
Float
Reservoir Tank
z Grommet
12 (120, 9)
Piston
HOW TO USE THIS MANUAL
z Gasket
Boot
Snap Ring
Washer
Push Rod
Author :
IN-1
IN00U-90
IN-22
.
Clevis Pin
Clip
Clevis
Lock Nut
N17080
Date :
1
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Table of Contents
Troubleshooting
Related Manuals for Lexus IS300 2005
Summary of Contents for Lexus IS300 2005
- Page 1 Boot z Grommet Slotted Spring Pin 12 (120, 9) Clevis 15 (155, 11) Snap Ring Washer Lock Nut Push Rod Piston Cylinder N·m (kgf·cm, ft·lbf) : Specified torque z Non-reusable part N17080 2005 LEXUS IS300 (RM1140U) Author : Date :...
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Page 2: Specifications
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) 2005 LEXUS IS300 (RM1140U) Author : Date :... -
Page 3: Identification Information
A: Vehicle Identification Number Plate B: Certification Label B12091 ENGINE SERIAL NUMBER 2JZ-GE The engine serial number is stamped on the engine block, as shown in the illustration. B12487 2005 LEXUS IS300 (RM1140U) Author : Date :... -
Page 4: Repair Instructions
When reusing precoated parts, clean off the old adhesive and dry with compressed air. Then apply Seal Lock Adhesive new seal lock adhesive to the bolt, nut or threads. Z11554 2005 LEXUS IS300 (RM1140U) Author : Date :... -
Page 5: Fusible Link
DO NOT exceed the rating or use Equal Amperage Rating one with a lower rating. BE1367 Illustration Symbol Part Name Abbreviation FUSE FUSE MEDIUM CURRENT FUSE M-FUSE HIGH CURRENT FUSE H-FUSE FUSIBLE LINK CIRCUIT BREAKER V00076 2005 LEXUS IS300 (RM1140U) Author : Date :... - Page 6 When using a vacuum gauge, never force the hose onto a connector that is too large. Use a step-down adapter for adjustment. Once the hose has been stretched, it may leak air. IN0252 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 7 20°C (68°F). Mea- surement should be made after the engine has cooled IN0002 down. If measured at high temperatures immediately af- ter the vehicle has been running, resistance may be out- side specifications. 2005 LEXUS IS300 (RM1140U) Author : Date :...
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Page 8: Vehicle Lift And Support Locations
Differential carrier CAUTION : When jacking-up the front and rear, make sure the vehicle is not carrying any extra weight. PANTOGRAPH JACK POSITION SUPPORT POSITION Safety stand and swing arm type lift I19098 2005 LEXUS IS300 (RM1140U) Author : Date :... - Page 9 Check the interference of the attachment with the front floor cover when placing the attachment on the plate. Attachment dimensions 85 mm (3.35 in.) 70 mm (2.76 in.) 100 mm (3.94 in.) 200 mm (7.87 in.) I19099 2005 LEXUS IS300 (RM1140U) Author : Date :...
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Page 10: For All Of Vehicles
PRECAUTION FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND SEAT BELT PRETENSIONER The LEXUS IS300 is equipped with an Supplemental Re- straint System (SRS), such as the driver airbag, front pas- senger airbag assembly, side airbag assembly, curtain shield airbag assembly and seat belt pretensioners. - Page 11 Refer to SR-25 of this manual concerning correct steer- ing wheel installation. Marks F01322 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 12 SST before disposal (see page RS-17 ). Deploy airbags in a safe place away from electrical noise. Example: CORRECT WRONG B17163 Example: NEVER USE AN OHMMETER ON AN AIRBAG OR PRETENSIONER Z13950 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 13 SST before disposal (see page RS-31 Deploy airbags in a safe place away from electrical noise. Example: CORRECT WRONG H15183 B11669 B17162 Example: NEVER USE AN OHMMETER ON AN AIRBAG OR PRETENSIONER Z13951 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 14 SST before disposal (see page RS-44 ). Deploy airbags in safe place away from electrical noise. Example: CORRECT WRONG B17197 Example: NEVER USE AN OHMMETER ON AN AIRBAG OR PRETENSIONER B01546 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 15 As a safety measure, always deploy airbags using an SST before disposal (see page RS-59 ). Deploy airbags in a safe place away from electrical noise. Example: NEVER USE AN OHMMETER ON AN AIRBAG OR PRETENSIONER B08605 H12059 R06952 2005 LEXUS IS300 (RM1140U) Author : Date :...
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Page 16: Seat Belt Pretensioner
The seat belt pretensioner becomes hot after ac- tivation. Allow it to cool before disposing. Never use water to cool seat belt pretensioner. Example: NEVER USE OHMMETER ON AN AIRBAG OR PRETENSIONER B02121 2005 LEXUS IS300 (RM1140U) Author : Date :... - Page 17 All the connectors in the system are a standard yellow color. If the SRS wire har- ness becomes disconnected or the connector becomes broken, etc., repair or replace it as shown on page RS-82 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 18 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 cut switch and turn the TRAC system OFF. 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 19 VSC OFF indicator light goes off. HINT: The SLIP indicator light blinks and the VSC buzzer sounds when the VSC system is operational. B07101 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 20 Make adjustments if necessary (see page PR-1 No. 3 Joint No. 2 Joint B - C = 2°18’ ± 30’ A - B = - 1°21’ ± 30’ B07659 2005 LEXUS IS300 (RM1140U) Author : Date :...
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Page 21: How To Troubleshoot Ecu Controlled Systems
IN04S-45 GENERAL INFORMATION A large number of ECU controlled systems are used in the LEXUS IS300. In general, ECU controlled sys- tems are considered to be a very intricate, requiring a high level of technical knowledge to troubleshoot. How- ever, following the problem checking procedures of the ECU controlled system’s circuits carefully is not com- plex. -
Page 22: How To Proceed With Troubleshooting
After completing repairs, confirm that the problem has been eliminated. (To be absolutely sure the problem no longer ex- ists, perform the confirmation test under the same conditions and environment as when it occurred the first time.) 2005 LEXUS IS300 (RM1140U) Author : Date :... -
Page 23: Customer Problem Analysis Check
Customer’s Name Licence No. Odometer Reading Date Vehicle Brought In miles Date Problem First Occurred Other Fine Cloudy Rainy Snowy Weather Temperature Approx. Starting Idling Vehicle Operation Driving Constant speed Acceleration Deceleration Other 2005 LEXUS IS300 (RM1140U) Author : Date :... - Page 24 SYSTEMS SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE CHECK The diagnostic system in the LEXUS IS300 fulfills various functions. The first function is the Diagnostic Trouble Code (DTC) Check. In a DTC Check,a previous malfunc- tion’s DTC can be checked by a technician during troubleshooting. (A DTC is a code stored in the ECU memory whenever a malfunction in the signal circuits to the ECU occurs.)
- Page 25 Normal Code Display other than in the diagnostic circuit exist displayed No problem Normal code is The problem occurred in a place other symptoms exist displayed than in the diagnostic circuit in the past 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 26 Therefore, check the wire harness and con- nectors (see page IN-33 2005 LEXUS IS300 (RM1140U) Author : Date :...
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Page 27: Wire Harness
Apply slight vibration with a finger to the part of the sensor considered to be the cause of the problem and check wheth- er or not the malfunction occurs. HINT: Applying strong vibration to relays may result in open relays. V07268 2005 LEXUS IS300 (RM1140U) Author : Date :... -
Page 28: Water Sprinkling Method
OTHER: When a malfunction seems to occur when electrical load is excessive. Turn on all electrical loads including the heater blower, head lights, rear window defogger, etc. and check to see if the mal- function occurs. B02389 B02390 2005 LEXUS IS300 (RM1140U) Author : Date :... - Page 29 D Open or short in throttle position sensor circuit Throttle/ Pedal Position Sensor/Switch D Throttle position sensor ”A” Circuit Malfunction D ECM Throttle/ Pedal Position Sensor/ Switch D Throttle position sensor ”A” Circuit Range / Performance Prob- 2005 LEXUS IS300 (RM1140U) Author : Date :...
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Page 30: Problem Symptoms Table
1. A/C signal circuit (Compressor circuit) AC-88 High engine idle speed (Poor idling) 2. ECM power source circuit 1. A/C signal circuit idling) 2. Fuel pump control circuit 1. Compression 2. Fuel pump control circuit 2005 LEXUS IS300 (RM1140U) Author : Date :... -
Page 31: Circuit Inspection
O = Orange; W = White; GR = Gray; P = Pink; Y = Yellow; SB = Sky Blue. The first letter indicates the basic wire color and the second letter indicates the color of the stripe. V08423 2005 LEXUS IS300 (RM1140U) Author : Date :... -
Page 32: Inspection Procedure
In this case, care must be taken not to bend the terminals. (with harness). D Indicates the condition of the connector of ECU during the check. E6 Connector E6 Connector Connector being checked is disconnected. Connector being checked is connected. V08425 2005 LEXUS IS300 (RM1140U) Author : Date :... -
Page 33: How To Use This Manual
Boot z Grommet Slotted Spring Pin 12 (120, 9) Clevis 15 (155, 11) Snap Ring Washer Lock Nut Push Rod Piston Cylinder N·m (kgf·cm, ft·lbf) : Specified torque z Non-reusable part N17080 2005 LEXUS IS300 (RM1140U) Author : Date :... - Page 34 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) 2005 LEXUS IS300 (RM1140U) Author : Date :...
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Page 35: Abbreviations Used In This Manual
Bimetallic Vacuum Switching Valve Calif. California Circuit Breaker Catalytic Converter For Oxidation Compact Disc Cornering Force Center Of Gravity Channel COMB. Combination Coupe Combustion Pressure Sensor Central Processing Unit Child Restraint System Center Check Valve 2005 LEXUS IS300 (RM1140U) Author : Date :... - Page 36 Fuel Economy Front-Engine Front-Wheel-Drive Fuel Gauge FIPG Formed In Place Gasket Fusible Link Fuel Pump Fuel Pressure Up Front Front-Engine Rear-Wheel-Drive Flywheel FW/D Flywheel Damper Front-Wheel-Drive Gasoline Ground High Altitude Compensator Hatchback 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 37 Load Sensing Proportioning And Bypass Valve LSPV Load Sensing Proportioning Valve MAX. Maximum Microphone Malfunction Indicator Lamp MIN. Minimum Multipurpose Multiplex Communication System Manual Transmission (Transaxle) Mount Mounting Neutral Natural Aspiration Number Overdrive 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 38 Supplemental Restraint System Special Service Materials Special Service Tools Standard Cold-Start Fuel Injection Switch System Transaxle TACH Tachometer Throttle Body Electronic Fuel Injection Turbocharger TCCS TOYOTA Computer-Controlled System Timing Control Valve Top Dead Center 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 39 Vehicle Identification Number Variable Power Steering Vehicle Skid Control Vacuum Switching Valve Vacuum Transmitting Valve With Wagon Wire Harness Without First Second Two Wheel Drive Vehicle (4x2) Four Wheel Drive Vehicle (4x4) 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 40 INTRODUCTION TERMS IN03Q-04 GLOSSARY OF SAE AND LEXUS TERMS This glossary lists all SAE-J1930 terms and abbreviations used in this manual in compliance with SAE rec- ommendations, as well as their LEXUS equivalents. LEXUS TERMS SAE TERMS ABBREVIATIONS ( )--ABBREVIATIONS...
- Page 41 Smoke Puff Limiter Service Reminder Indicator System Readiness Test Scan Tool Throttle Body Throttle Body Single Point Injection Throttle Body Fuel Injection Central Fuel Injection (Ci) Turbocharger Turbocharger Torque Converter Clutch Torque Converter 2005 LEXUS IS300 (RM1140U) Author : Date :...
- Page 42 Air Flow Meter Voltage Regulator Voltage Regulator Vehicle Speed Sensor Vehicle Speed Sensor Wide Open Throttle Full Throttle WU-OC Warm Up Oxidation Catalytic Converter WU-TWC Warm Up Three-Way Catalytic Converter Third Gear Fourth Gear 2005 LEXUS IS300 (RM1140U) Author : Date :...