2005 LEXUS ES300 service reset

Page 1 of 6Lexus Supports ASE Certification
Title:
IMMOBILIZER KEY CODE RESET
Models:
Applicable ES 300, GS 430, GS 300,
IS 300, & LX 470
Technical Service
Information Bulletin
August 26, 2002
SS002-01
TSIB REVISION NOTICE:
August 26, 2005: The model years for each model have been specifically defined in
the ªApplicable Vehiclesº section. The ªRequired SSTsº section has been updated.
February 11, 2003: Model years for LX 470 revised to apply to 2001 and 2002 only.
August 26, 2002: ES 300, GS 300, and IS 300 models added. Model years for GS 430
and LX 470 vehicles expanded to include 2002 and later. Diagnostic Tester software
in Required Tools & Material updated to version 9.01a (or later).
Previous versions of this TSIB should be discarded.
Immobilizer Reset is a new feature that allows the registration of a new Master Key even
if all original Master Keys are lost. Once the Immobilizer system is reset, all previously
registered keys will be erased.
MODEL YEARMODELENGINE MODEL
2001 ± 2005*GS 4303UZ±FE
2001 ± 2002*LX 4702UZ±FE
2002 ± 2003*ES 3001MZ±FE
2002 ± 2005*GS 3002JZ±GE
2002 & Later*IS 3002JZ±GE
* Immobilizer Key Code Reset procedure is not available for prior model years.
NOTE:
Refer to TIS (Technical Information System) for the most current applicable
vehicle information.
PREVIOUS PART NUMBERCURRENT PART NUMBERPART NAME
N/AModel SpecificReplacement Key (Master or Sub)
OP CODEDESCRIPTIONTIMEOFPT1T2
N/ANot Applicable to Warranty ±±±±
SPECIAL SERVICE TOOLS
Introduction
Applicable
Vehicles
Parts
Information
Warranty
Information

August 26, 2002IMMOBILIZER KEY CODE RESET ± SS002-01 Revised
Page 2 of 6
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.
The Immobilizer Reset function is a 5-step process:
1. Using the Diagnostic Tester, retrieve a ªSeed Numberº through the OBD/MOBD
Immobilizer function.
A ªSeed Numberº is a unique number provided by the Diagnostic Tester and
validated by TIS (Technical Information System) in order to return a Passcode.
2. Using TIS, select Immobilizer Reset, and complete the request form to retrieve a
ªPasscode Number.º
A ªPasscode Numberº is a unique number required by the Diagnostic Tester to
reset the ECU allowing it to accept a new Master Key.
3. Enter the ªPasscode Numberº received from TIS into the Diagnostic Tester.
4. Confirm successful Immobilizer reset and new Master Key registration.
5. Register any additional customer keys.
Required
SSTs
Function
Description

Lexus Supports ASE CertificationPage 1 of 14
Title:
DIAGNOSTIC TESTER
IMMOBILIZER FUNCTIONS
Models:
Applicable ES 330, GS 300, GS 430, GX 470,
LS 430, LX 470, RX 330, & SC 430
Technical Service
Information Bulletin
July 6, 2001
SS005-01
TSIB REVISION NOTICE:
August 26, 2005: The model years for each model have been specifically defined
in the ªApplicable Vehiclesº section. The following vehicles have been added to
the ªApplicable Vehiclesº section: ES 330, GS 300, GS 430, and RX 330.
The ªRequired SSTsº section has been updated.
January 9, 2003: GX 470 and LX 470 have been added to Applicable Vehicles.
The ªRequired SSTsº section has been updated to the current version software.
Screen flows revised (screen C and D) in Figures 1 (screen C and D), 2 (screen C),
3 (screen C), 4 (screen C and G), and 9 (screen A).
The information contained in this TSIB supercedes the original SS005±01.
Previous versions of this TSIB should be discarded.
The Diagnostic Tester incorporates support for Immobilizer system service. This bulletin
covers the following Immobilizer functions available using the Diagnostic Tester:
Transponder Key Type
Transponder Code Registration
Transponder Code Erasure
Transponder ECU Reset
Transponder ECU Replacement
Engine ECU Replacement
NOTE:
The available functions and procedures for the models listed in this TSIB differ
slightly from previous models and other Immobilizer systems currently in use on
Lexus vehicles.
OP CODEDESCRIPTIONTIMEOFPT1T2
N/ANot Applicable to Warranty ±±±±
SPECIAL SERVICE TOOLS
Introduction
Warranty
Information

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

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