
DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS ± SS005-01 Revised July 6, 2001
Page 2 of 14
MODEL YEARMODELENGINE MODEL
2001 & LaterLS 4303UZ±FE
2002 & LaterSC 4303UZ±FE
2003 & LaterGX 4702UZ±FE2003 & LaterLX 4702UZ±FE
2004 & LaterES 3303MZ±FE2004 & LaterRX 3303MZ±FE
2006GS 300 (w/o Smart Key)3GR±FSE2006GS 430 (w/o Smart Key)3UZ±FE
NOTE:
Refer to TIS (Technical Information System) for the most current applicable
vehicle information.
PREVIOUS PART NUMBERCURRENT PART NUMBERPART NAME
N/AModel SpecificReplacement Transponder Key (Master or Sub)
ITEM
NO.SPECIAL SERVICE TOOLS (SSTs)PART NUMBERQTYDRW**
1
Lexus Diagnostic Tester Kit*
NOTE:
All components from this kit/set are required
12 Megabyte Diagnostic Tester Program Card
(P/N 01002593±005) with version 13.0a Software
(or later) is requiredLEX22003618
2
CAN Interface Module Kit*
NOTE:
All components from this kit/set are required0100274418
* Essential SSTs.
** Refers to drawer number in SST Storage System.
NOTE:
Additional Diagnostic Tester Kits, CAN Interface Modules, Program Cards, or other
SSTs may be ordered by calling SPX/OTC at 1-800-933-8335. Applicable
Vehicles
Parts
Information
Required
SSTs

DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS ± SS005-01 Revised July 6, 2001
Page 3 of 14
1. Transponder Key Type
Before any Immobilizer functions are performed, verify the type of transponder key
that you are attempting to use for the service operation. Some functions may only be
performed with a registered Master Key.
2. Transponder Code Registration
This function allows the registration of additional transponder keys (Master or Sub)
using a registered Master Key.
3. Transponder Code Erasure
This function allows the user to erase all the transponder keys except the registered
Master Key used during this function.
4. Transponder ECU Reset
This function allows the registration of a new Master Key even if all original Master
Keys are lost. Once the Immobilizer system is reset, all previous registered keys will
be erased.
5. Transponder ECU Replacement
When the Transponder ECU is replaced, the transponder keys must be registered to
the new ECU, auto registration closed, and ECU communication completed.
6. Engine ECU Replacement
When the Engine ECU is replaced, ECU communication must be completed to
synchronize an encrypted security code between the engine and Transponder ECUs.Function
Description

DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS ± SS005-01 Revised July 6, 2001
Page 4 of 14
1. Transponder Key Type
Before any Immobilizer functions are performed, verify the type of transponder key
that you are attempting to use for the service operation. Some functions may only be
performed with a registered Master Key.
A. Insert the current key into the ignition cylinder and turn to the ON position.
HINT:
The Immobilizer key blanks are preconfigured as Master or Sub Keys. Master Key
blanks cannot be registered as Sub Keys nor can Sub Key blanks be registered as
Master Keys. Also, the flat key is now enabled as a full function Master Key that must
be registered.
B. Follow the screen flow in Figure 1 to determine the key type.
C. Key type and registration status will be indicated on the Immobilizer data list
(Figure 1, screen E).
ªMATCHº = The key in the ignition cylinder matches this key type.
ªNOMATCHº = The key in the ignition cylinder does NOT match this key type.
1: CODES (ALL)
2: ENGINE AND ECT
3: TIRE PRES WARN
4: ABS / VSC
5: CCS
6: AIR CONDITIONER
8: SRS AIRBAG
9: GATEWAY
A
FUNCTION SELECT
B
1: OBD/MOBD
2: ENHANCED OBD II
3: CARB OBD II
4: BREAK OUT BOX
5: NVH
6: AUTOPROBE
7: O2 RPM CHECK
8: SNAPSHOT REVIEW
9: SETUP
0: GAS ANALYSIS
OBD/MOBD MENU
7: IMMOBILIZER
FIGURE 1. TRANSPONDER KEY IDENTIFICATION
DE
USER DATASELECT DATA
ALL
KEY SW ON. . . . . . . . . . . . . . . . .
IG SW ON. . . . . . . . . . . . . . . . . . .
IMMOBILIZER UNSET. . . . . . . .
PERMIT (START) OK. . . . . . . . . .
RESPONSE OK. . . . . . . . . . . . . .
FRAME OK. . . . . . . . . . . . . . . . . .
SERIAL NUMBER OK. . . . . . . . .
ENCRYPT CODE OK. . . . . . . . . .
STATUS OK. . . . . . . . . . . . . . . . . .
BCC OK. . . . . . . . . . . . . . . . . . . . .
REGIST SUB CODE 1. . . . . . . .
REGIST MAS CODE 2. . . . . . . .
REG CODE SPACE NOT FUL. .
SUB KEY NOMATCH. . . . . . . . .
MASTER KEY MATCH. . . . . . . .
C
DIAGNOSTIC MENU
IMMOBILIZER
1: DATA LIST
2: DTC INFO
3: ACTIVE TEST
4: SNAPSHOT
5: ID UTILITY
Operation
Procedure
TRANSPONDER
KEY TYPE

Lexus Supports ASE CertificationPage 1 of 2
Title:
STEERING INTERMEDIATE SHAFT NOISE
Models:
'03 ES 300, '04 ± '05 ES 330
Technical Service
Information Bulletin
April 29, 2005
ST001-05
Some customers may hear and feel a clunk, pop, or knock type noise when turning the
steering wheel left or right. A new intermediate shaft has been developed to address
this concern.
Intermediate Shaft
Steering Column
2003 model year ES 300 vehicles.
2004 model year ES 330 vehicles.
2005 model year ES 330 vehicles produced BEFORE the Production Change
Effective VINs shown below.
MODELPRODUCTION CHANGE EFFECTIVE VIN
ES 330JTHBA30G#55098506
OP CODEDESCRIPTIONTIMEOFPT1T2
ST4008R & R Steering Intermediate Shaft0.945220±332009119
Applicable Warranty*:
This repair is covered under the Lexus Comprehensive Warranty. This warranty is in
effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle's
in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.
STEERING
Introduction
Applicable
Vehicles
Production
Change
Information
Warranty
Information

Lexus Supports ASE CertificationPage 1 of 11
Title:
REPAIR MANUAL SUPPLEMENT:
VEHICLE PULLING TO ONE SIDE
Models:
All '02 ± '06 Model
Technical Service
Information Bulletin
December 21, 2001
ST004-01
TSIB REVISION NOTICE:
October 5, 2005: 2003 ± 2006 model years have been added to Applicable Vehicles.
A note has been added to the illustration in step 3.
March 1, 2002: OP Codes updated in Warranty Information.
All previous versions of this TSIB should be discarded.
This bulletin contains general vehicle pulling diagnosis and repair procedures along with
specific information to help correct pulling complaints.
This information supplements Repair Manual procedures when the symptoms are:
The driver holds the steering wheel without exerting steering effort while driving
straight ahead, and the vehicle drifts to the right or the left.
While driving straight ahead, the driver has to steer either to the right or the left to
maintain straight driving.
2002 ± 2006 model year Lexus vehicles.
OP CODEDESCRIPTIONTIMEOPNT1T2
ST1004Preliminary Check & Road Test0.6
Combo ASwitch Front Tire/Wheel & Road Test0.5
Combo BReverse the Front One Side Tire0.745046 09020Combo CCheck Front Wheel Alignment1.245046±09020
Combo DAdjust Front Wheel Alignment0.73199
Combo EAdjust Camber Setting0.7
420091Dismount and Mount Tire and Balance Wheel
and Tire Assembly0.542611±48030
Combo AEach additional Wheel0.3
42611 48030
NOTE:
Above combination codes A, B, D and E include road test time.
Applicable Warranty*:
This repair is covered under the Lexus Comprehensive Warranty. This warranty is in
effect for 12 months or 20,000 miles, whichever occurs first, from the vehicle's
in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.
STEERING
Introduction
Applicable
Vehicles
Warranty
Information

Lexus Supports ASE CertificationPage 1 of 3
Title:
ECM RESET MEMORY FUNCTION
Models:
'98 ± '05 Applicable Models
Technical Service
Information Bulletin
May 5, 2003
TC002-03
TSIB REVISION NOTICE:
December 20, 2004: Applicable Vehicles section has been updated and modified,
2004 and 2005 model years added; and Reset Procedure 2 has been revised.
Previous versions of this TSIB should be discarded.
Whenever an automatic transmission is replaced, overhauled or individual components
are replaced, use this procedure to erase Engine Control Module (ECM, SAE term:
Powertrain Control Module, PCM) ªLearned Valuesº and minimize subsequent
performance concerns.
CAUTION:
Failure to follow the following procedure may lengthen the time to readjust the
ªLearned Values,º potentially resulting in performance concerns.
Refer to Reset Procedure 1 for the following vehicles with Electronically Controlled
Automatic Transmissions:
1999 ± 2003 model year ES 300 and RX 300 vehicles.
2003 ± 2005 model year GX 470 vehicles.
2004 ± 2005 model year RX 330 vehicles.
Refer to Reset Procedure 2 for the following vehicles with Electronically Controlled
Automatic Transmissions:
1998 ± 2005 model year GS 430/400/300, LS 430/400, LX 470, and
SC 430/400/300 vehicles.
2001 ± 2005 model year IS 300 vehicles.
OP CODEDESCRIPTIONTIMEOFPT1T2
N/ANot Applicable to Warranty±±±±
TRANSMISSION & CLUTCH
Introduction
Applicable
Vehicles
Warranty
Information

RESET MEMORY FUNCTION ± TC002-03 Revised May 5, 2003
Page 2 of 3
SPECIAL SERVICE TOOLS (SSTs)PART NUMBERQUANTITY
Lexus Diagnostic Tester Kit*010012701
CAN Interface Module Kit*010027441
12 Megabyte Diagnostic Tester Program Card
with version 12.01a Software (or later)*01002593-0051
* Essential SSTs.
NOTE:
Additional Diagnostic Tester Kits, CAN Interface Modules, Program Cards or other
SSTs may be ordered by calling SPX/OTC at 1-800-933-8335.
1. Connect the Lexus Diagnostic Tester to the vehicle.
2. Reset the ECM (PCM). Refer to the procedures below.
DO YOU WISH TO
RESET THE ECM?
[YES] to CONTINUE
[NO] to EXIT
2: CUSTOMIZE
3: ECU REPROGRAMFUNCTION SELECT FOR
NORTH AMERICA
B
*APPLICATION SELECT*
A
1: DIAGNOSISDIAGNOSTIC MENU
ENGINE
C
DO NOT USE THIS
FUNCTION UNLESS
INSTRUCTED BY
REPAIR MANUAL.RESET MEMORY
E
RESET MEMORY
NOTICE
D
[YES]
F
1: OBD/MOBD
3: CARB OBD II
4: BREAK±OUT BOX
5: NVH
6: AUTOPROBE
7: 02 RPM CHECK
8: SNAPSHOT REVIEW
9: SETUP
0: GAS ANALYSIS2: ENHANCED OBD II1: DATA LIST
2: DTC INFO
3: ACTIVE TEST
4: SNAPSHOT
5: SYSTEM CHECK
6: RESET MEMORY
7: MONITOR STATUS
8: CHECK MODE
6: RESET MEMORY
ONLY USE AFTER
REPLACING THE ENGINE,
AUTO TRANS, OR ECM
ON CERTAIN VEHICLES.EXECUTING THIS
FUNCTION WILL RESET
THE LEARNED VALUES
IN THE ECM.RESET MEMORY
RESETTING COMPLETE
PRESS
[ENTER]
3. Start the engine and warm it up to normal operating temperatures before test±driving.
4. Perform a thorough test drive with several accelerations from a stop with ªlight
throttleº application until proper transmission shifting is verified.
Required
SSTs
Reset
Procedure 1

Lexus Supports ASE CertificationPage 1 of 6
Title:
ECM CALIBRATION: SHIFT FEELING
ENHANCEMENT
Models:
'02 ± '03 ES 300 & '04 ± '05 ES 330
Technical Service
Information Bulletin
August 4, 2003
TC004-03
REVISION NOTICE:
April 1, 2005: 2004 ± 2005 model year ES 330 vehicles have been added to
Applicable Vehicles. Introduction and Note have been updated on page 1.
Calibration Identification Chart has been updated to include ES 330 calibration IDs.
August 6, 2003: There has been a change in Warranty Time.
Previous versions of this TSIB should be discarded.
To improve the transmission shift feeling during specific operating modes, the Engine
Control Module (SAE term: Powertrain Control Module/PCM) calibration has been
revised. These improvements include:
Reduced downshift lag when accelerating at speeds from 10 to 20 mph.
Less gear hunting when driving on/off accelerator pedal at 20 to 30 mph
(for example: during heavy rush±hour traffic).
Improved response rate during heavy acceleration from a stop.
NOTE:
Version 12.01a or later Diagnostic Tester software is required to perform
this procedure.
Before proceeding, verify the ECM (PCM) calibration has NOT been updated by
checking for the Authorized Modifications Label (shown in step 1 of the
Repair Procedure).
Harsh ATM shifting may result if any Repair Procedure steps are omitted
(specifically steps 2 and 4 of ªFlash Reprogram ECMº on page 6).
2002 ± 2003 model year ES 300 vehicles.
2004 ± 2005 model year ES 330 vehicles.
OP CODEDESCRIPTIONTIMEOFPT1T2
EG5017Recalibrate ECM Engine & Transmission0.9
89666±3325#
89666±3344#
89661±33B3#
89661±33A4#
2699
Applicable Warranty*:
This repair is covered under the Lexus Federal Emissions Warranty. This warranty is
in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle's
in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.
TRANSMISSION & CLUTCH
Introduction
Applicable
Vehicles
Warranty
Information