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IN04Q-24

IN-38

INTRODUCTION

TERMS

Author:

Date:

2005 LEXUS IS300 (RM1140U)

TERMS

ABBREVIATIONS USED IN THIS MANUAL

Abbreviations

Meaning

ABS

Anti-Lock Brake System

Alternating Current

ACC

Accessory

ACIS

Acoustic Control Induction System

ACSD

Automatic Cold Start Device

A.D.D.

Automatic Disconnecting Differential

A/F

Air-Fuel Ratio

AHC

Active Height Control Suspension

ALR

Automatic Locking Retractor

ALT

Alternator

AMP

Amplifier

ANT

Antenna

APPROX.

Approximately

A/T

Automatic Transmission (Transaxle)

ATDC

After Top Dead Center

ATF

Automatic Transmission Fluid

AUTO

Automatic

AUX

Auxiliary

AVG

Average

AVS

Adaptive Variable Suspension

Brake Assist

BACS

Boost Altitude Compensation System

BAT

Battery

BDC

Bottom Dead Center

B/L

Bi-Level

B/S

Bore-Stroke Ratio

BTDC

Before Top Dead Center

BVSV

Bimetallic Vacuum Switching Valve

Calif.

California

Circuit Breaker

CCo

Catalytic Converter For Oxidation

Compact Disc

Cornering Force

Center Of Gravity

Channel

COMB.

Combination

CPE

Coupe

CPS

Combustion Pressure Sensor

CPU

Central Processing Unit

CRS

Child Restraint System

CTR

Center

C/V

Check Valve

Содержание 2005 IS300

Страница 1: ...nning 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 TROUBLES...

Страница 2: ...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...

Страница 3: ...ND ENGINE SERIAL NUMBER 1 VEHICLE IDENTIFICATION NUMBER The vehicle identification number is stamped on the vehicle identification number plate and the certification label as shown in the illustration...

Страница 4: ...the battery terminals and cable ends with a clean shop rag Do not scrape them with a file or oth er abrasive objects 5 Install the cable ends to the battery terminals after loosening the nut and tight...

Страница 5: ...s g When necessary use a sealer on gaskets to prevent leaks h Carefully observe all specifications for bolt tightening torques Always use a torque wrench i Use of special service tools SST and special...

Страница 6: ...inished quickly l Observe the following precautions to avoid damage to the following parts 1 Do not open the cover or case of the ECU unless absolutely necessary Static electricity transmitted through...

Страница 7: ...d to 2 After completing a job double check that the vacu um hoses are properly connected A label under the hood shows the proper layout n Unless otherwise stated all resistance should be mea sured at...

Страница 8: ...king up the front and rear make sure the vehicle is not carrying any extra weight Safety stand and swing arm type lift Engine Under Cover No 2 Front Suspension Member NOTICE Never place the engine und...

Страница 9: ...7 in 100 mm 3 94 in Align the cushion gum ends of the plate with the attachment lower ends A C When using attachments place the one for front side vertically and the one for rear side horizontally to...

Страница 10: ...scribed in this manual b GENERAL NOTICE 1 Malfunction symptoms of the SRS are difficult to confirm so the diagnostic trouble codes become the most important source of information when trou bleshooting...

Страница 11: ...ace if the airbag sensor steering wheel pad front passenger airbag assembly side airbag as sembly curtain shield airbag assembly front airbag sensor assembly or seat belt pretensioner if it has been d...

Страница 12: ...ering wheel pad on top of one another 2 Never measure the resistance of the airbag squib This may cause the airbag to deploy which is could cause serious injury 3 Grease or detergents of any kind shou...

Страница 13: ...2 Never measure the resistance of the airbag squib This may cause the airbag to deploy which is could cause serious injury 3 Grease or detergents of any kind should not be ap plied to the steering whe...

Страница 14: ...the resistance of the airbag squib This may cause the airbag to deploy which could cause serious injury 3 Grease or detergents of any kind should not be ap plied to the steering wheel pad 4 Store the...

Страница 15: ...shield airbag assembly 2 Never measure the resistance of the airbag squib This may cause the airbag to deploy which could cause serious injury 3 Grease or detergents of any kind should not be ap plie...

Страница 16: ...t belt pretensioner in another vehicle 4 Store the seat belt pretensioner where the ambient temperature remains below 80 C 176 F has low humidity and is away from electrical noise 5 Before using an el...

Страница 17: ...3 To avoid serious injury servicing the SRS must be started 90 seconds after The ignition switch is turned to the LOCK position The negative terminal cable is discon nected from the battery Even if o...

Страница 18: ...e vehicle s electronic system 2 Install the antenna feeder at least 20 cm 7 87 in away from the ECU and sensors of the ve hicle s electronic systems For details about ECU and sensors locations refer t...

Страница 19: ...pera tional 6 FOR VEHICLES EQUIPPED WITH VEHICLE SKID CONTROL VSC SYSTEM NOTICE When using 2 wheel drum tester such as a speedometer tester or chassis dynamometer etc or jacking up the front wheels an...

Страница 20: ...ase of the above due to the construction of the LSD the driving force is transmitted to the opposite wheel and therefore it is possible for the vehicle to start suddenly if only one rear wheel is off...

Страница 21: ...35 4 ABS with EBD BA TRAC VSC System DI 505 5 Supplemental Restraint System DI 605 6 Theft Deterrent System DI 776 7 Cruise Control System DI 818 8 Engine Immobiliser System DI 849 9 Combination Meter...

Страница 22: ...art that should be checked using the diagnostic trouble code chart or the problem symptoms table 4 5 6 Check and repair the affected system or part in accordance with the instructions in Step 6 7 Afte...

Страница 23: ...Operation Fine Cloudy Starting Idling Driving Constant speed Acceleration Other Inspector s Name CUSTOMER PROBLEM ANALYSIS CHECK Production Date Rainy Snowy Other Approx Deceleration INTRODUCTION HOW...

Страница 24: ...l Check which checks if the signals from various switches are sent to the ECU correctly By using these check functions the problem areas can be narrowed down and troubleshooting is more effective Diag...

Страница 25: ...red in a place other than in the diagnostic circuit in the past INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS IN 25 25 Author Date 2005 LEXUS IS300 RM1140U In diagnostic trouble code check i...

Страница 26: ...code was displayed in the initial diagnostic trouble code check it indicates that the trouble may have occurred in a wire harness or connector in that circuit in the past Therefore check the wire harn...

Страница 27: ...should be carried out No matter how much skill or experience a technician has troubleshooting without confirming the problem symptoms will lead to something important in the repair operation being ove...

Страница 28: ...ncluding the heater blower head lights rear window defogger etc and check to see if the mal function occurs ON HINT If a vehicle is subject to water leakage the leaked water may damage the ECU When te...

Страница 29: ...hort in throttle position sensor circuit Throttle position sensor ECM DTC CHART SAE Controlled HINT Parameters listed in the chart may not be exactly the same as your reading due to the type of instru...

Страница 30: ...s not start No complete combustion Does not start 1 Starter and starter relay 1 ECM power source circuit 2 Fuel pump control circuit 3 Engine control module ECM 1 Starter signal circuit 2 Fuel pump co...

Страница 31: ...comes deformed which occurs when the cylinder block vibrates due to knocking If engine knocking occurs ignition timing is retarded to suppress it DTC No DTC Detecting Condition Trouble Area P0325 No k...

Страница 32: ...r back side with harness Ignition Switch LOCK OFF Ignition Switch START LOCK Ignition Switch ON Ignition Switch ACC START ON ACC Indicates the place to check the voltage or resistance Indicates the co...

Страница 33: ...nning 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 TROUBLES...

Страница 34: ...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...

Страница 35: ...oximately A T Automatic Transmission Transaxle ATDC After Top Dead Center ATF Automatic Transmission Fluid AUTO Automatic AUX Auxiliary AVG Average AVS Adaptive Variable Suspension BA Brake Assist BAC...

Страница 36: ...t ED Electro Deposited Coating EDU Electronic Driving Unit EDIC Electric Diesel Injection Control EFI Electronic Fuel Injection E G Engine EGR VM EGR Vacuum Modulator ELR Emergency Locking Retractor E...

Страница 37: ...J B Junction Block J C Junction Connector KD Kick Down LAN Local Area Network LB Liftback LCD Liquid Crystal Display LED Light Emitting Diode LH Left Hand LHD Left Hand Drive L H W Length Height Width...

Страница 38: ...ront Suspension RRS Rigid Rear Suspension RH Right Hand RHD Right Hand Drive RLY Relay ROM Read Only Memory Rr Rear RR Rear Engine Rear Wheel Drive RWD Rear Wheel Drive SDN Sedan SEN Sensor SICS Start...

Страница 39: ...YOTA Motor Manufacturing Kentucky Inc TRAC Traction Control System TURBO Turbocharger U D Underdrive U S Undersize VCV Vacuum Control Valve VENT Ventilator VIN Vehicle Identification Number VPS Variab...

Страница 40: ...Link Connector 2 Data Link Connector 3 1 Check Connector 2 Total Diagnosis Comunication Link TDCL 3 OBD II Diagnostic Connector DTC Diagnostic Trouble Code Diagnostic Code DTM Diagnostic Test Mode EC...

Страница 41: ...emory O2S Oxygen Sensor Oxygen Sensor O2 Sensor O2S OBD On Board Diagnostic On Board Diagnostic System OBD OC Oxidation Catalytic Converter Oxidation Catalyst Convert OC CCo OL Open Loop Open Loop PAI...

Страница 42: ...rmostatic Vacuum Switching Valve TVSV TWC Three Way Catalytic Converter Three Way Catalytic TWC Manifold Converter CCRO TWC OC Three Way Oxidation Catalytic Converter CCR CCo VAF Volume Airflow Air Fl...

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