L-SB-0015-10 Rev2

February 4, 2010

Ovens

Technical Service Information Bulletin

Techstream ECU Flash Reprogramming Procedure

Service
Category Engine/Hybrid System

Lexus Supports
ASE Certification

Section Engine Control Market USA

Applicability
YEAR(S) MODEL(S) ADDITIONAL INFORMATION
2001 — 2074 CT200H, ES300,

ES300H, ES330,
£S350, GS300,
GS350, GS430,
GS450H, GS460,
GX460, GX470,
HS250H, IS F, 18250,
IS250C, 1$300, S350,
IS350C, LFA, LS430,
LS460, LS600H,
LX470, LX570, RX300,
RX330, RX350,
RX400H, RX450H,
5C430

REVISION NOTICE
January 23, 2013 Rev2:

March 15, 2012 Revt:

* Applicability has been updated to include additional 2013 and 2014 model year vehicles.

* The entire bulletin has been updated to include information for Techstream 2.0.

* Applicability has been updated to include 2042 — 2013 model year Lexus vehicles.

Any previous printed versions of this bulletin should be discarded.

© 2013 Lexus, a division of Toyota Motor Sales, USA

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Ovexus L-SB-0015-10 Rev2 —- February 4, 2010 Page 2 of 23

Techstream ECU Flash Reprogramming Procedure

SUPERSESSION NOTICE
The information contained in this bulletin supersedes SB Ne. SS002-07.
¢ Applicability has been updated to include 2009 ~ 2011 model year Lexus vehicles.
* A new section, Techstream Preparation, has been added.
¢ Techstream Lite has been added as an option in Required Tools & Equipment.
¢ Process Overview and Operation Procedure sections have been updated.

Service Bulletin No. SS002-07 is Obsolete and any printed versions should be discarded. Be sure
to review the entire content of this bulletin before proceeding.

Introduction

Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash
calibration updates for specific vehicle models/ECUs are released as field-fix procedures described
in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming
process and outlines use of the Technical Information System (TIS) and the Calibration Update
Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for
which they are intended. ECUs have internal security that will not allow them to be programmed with
another ECU's information.

ECU

Electronic Control Unit (ECU) is a Lexus term used to describe integrated computerized devices
responsible for managing the operation of a system or subsystem. For the purposes of this
bultetin, the term “ECU” is used as a generic label for the following SAE J1930 standard references:
* Powertrain Control Module (PCM)
* Engine Control Module (ECM)

* Transmission Control Module (TCM)

* Or any other Lexus specific control unit

Warranty Information

OP CODE DESCRIPTION TIME OFP Tt «| 12
N/A Not Applicable to Warranty a = - -

© 2013 Lexus, a division of Toyota Motor Sales, USA
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Techstream ECU Flash Reprogramming Procedure

Parts Information

PREVIOUS PART NUMBER CURRENT PART NUMBER PART NAME aty
00451-00001-LBL Same Authorized Modification Labels 4
NOTE

Authorized Modification Labels may be ordered in packages of 25 from the Materials Distribution
Center (MDC) through Dealer Daily — Dealer Support Materials Orders.

Required Tools & Equipment

REQUIRED EQUIPMENT SUPPLIER PART NUMBER Qty
Techstream 2.0° TS2UNIT
TIS Techstream ADE TSPKG1 1
Techstream Lite TSLITEDLRO1

NOTE
* Only ONE of the Techstream units listed above is required.
* Software version 7.31.003 or later is required.

* Additional Techstream units may be ordered by calling Approved Dealer
Equipment (ADE) at 1-800-368-6787.

* The Diagnostic Tester is NOT recommended for ftash reprogramming.
Please use Techstream or an approved J2534 interface to perform flash
reprogramming updates. Visit techinfo.toyota.com for more information
regarding J2534 reprogramming.

SPECIAL SERVICE TOOLS (SST) PART NUMBER ary
GR8 Battery Diagnostic Station* 00002-MCGR8 1

NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.

“ Essential SST.

© 2013 Lexus, a division of Toyota Motor Sales. USA
®Q LeEXxXLis L-SB-0015-10 Rev2 February 4, 2010 Page 4 of 23

Techstream ECU Flash Reprogramming Procedure

Techstream Preparation
Selecting the Correct VIM.
Techstream software requires a VIM selection before it can be used for reprogramming.
Perform the following:
1. Select “Setup” from the Techstream Main Menu screen.

2. Select “VIM Select” from the Setup drop down menu.

Figure t.

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fie arctan Seup TS User Hep
a

= Display Properties
- Techstream Configuration
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Ragmer Techetrgem Su-ta0e

‘Var £21002

© 2013 Lexus, a division of Toyota Motor Sales, USA

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Techstream ECU Flash Reprogramming Procedure

Techstream Preparation (Continued)
3. Select the correct Interface Setup from the drop down list.
* Ifusing Techstream 2.0, select “MongoosePro MFC”.

* If using Techstream Lite, select “Mongoose MFC” or “MongoosePro MFC” (depending
on the cable being used).

NOTE
Mongoose Driver MUST be installed before Mongoose selections will be available.

See TiS — Diagnostics - Scantool page for additional information.

* Ifusing TIS Techstream, select “T/S Techstream VIM".
4. Click “OK”.

Process Overview
Techstream ECU flash reprogramming is a 4-step process:

1. Verify the vehicle's applicability for recalibration and locate desired calibration file by performing
the Techstream Health Check function.

NOTE

Techstream will automatically search TIS for the appropriate Service Bulletin using the
current Calibration ID from the vehicle. Calibration file links can be found embedded in the

corresponding Service Bulletin.

2. Connect the GR8 Battery Diagnostic Station using “Power Supply Mode” only.

The GR8 Battery Diagnostic Station includes a Power Supply Mode to help maintain battery
voltage at 13.5 volts during ECU reprogramming.

NOTICE
ECU damage may occur if the correct battery charger mode setting is NOT used.

3. Locate appropriate calibration ID and reprogram the vehicle ECU with Techstream.

Techstream uses the Calibration Update Wizard (CUW) application to open calibration files and
facilitate the ECU flash reprogramming process.

4. Attach the Authorized Vehicle Modification Label,

Modifications to ECU calibrations MUST be recorded and properly displayed on the vehicle using
the Authorized Modification Label.

© 2013 Lexus, a division of Toyota Motor Sales, USA
@ Lexus L-SB-0015-10 Rev2 —- February 4, 2010 Page 6 of 23

Techstream ECU Flash Reprogramming Procedure

Operation Procedure

1. Verify the vehicle’s applicability for recalibration and locate desired calibration file.

A. Connect Techstream and establish a vehicle connection.

B. Click the “Health Check” button on the “System Select" tab.
Figure 2.

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D. Click “Next”.

E. Click “Continue” to view Health Check results. Figure 4.

Heath Check Comeiete !

‘Health Check does not display Ine data
Changes in vehicle condition vill net update autematically

-To update Heath Check click the Rehesh Health Check” button

>a]

© 2013 Lexus, a division of Toyota Motor Sales, USA
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Techstream ECU Flash Reprogramming Procedure

Operation Procedure (Continued)

F. Available calibration updates are indicated by a Yes link in the “Cal. Update?” column.
Click the Yes link to access the appropriate Service Bulletin on TIS.

NOTE
* Note any DTCs stored in systems that will be flash reprogrammed.

* Clicking the Yes link will automatically launch TIS and perform a calibration search.

Figure 5.

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G. Log in to TIS. (If already logged in, skip this step.)

© 2013 Lexus, a division of Toyota Motor Sales, USA
(2) Lexus

L-SB-0015-10 Rev2 February 4, 2010

Techstream ECU Flash Reprogramming Procedure

Operation Procedure (Continued)
H. To review the Service Bulletin and access the calibration file, click the Service Bulletin link in

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